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Description: When a non-x86 platform is detected, cloud-init grants root access to a hardcoded url with a local IP address. To prevent this, cloud-init default configurations disable platform enumeration.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- cloud-init > 0-0 (version in image is 23.3-150100.8.85.4).
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Description: Unknown.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- qemu-img > 0-0 (version in image is 9.2.4-150700.3.17.1).
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Description: BuildKit is a toolkit for converting source code to build artifacts in an efficient, expressive and repeatable manner. Prior to version 0.28.1, when using a custom BuildKit frontend, the frontend can craft an API message that causes files to be written outside of the BuildKit state directory for the execution context. The issue has been fixed in v0.28.1. The vulnerability requires using an untrusted BuildKit frontend set with `#syntax` or `--build-arg BUILDKIT_SYNTAX`. Using these options with a well-known frontend image like `docker/dockerfile` is not affected.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- docker > 0-0 (version in image is 28.5.1_ce-150000.245.2).
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Description: A use-after-free vulnerability was found in the QEMU LSI53C895A SCSI Host Bus Adapter emulation. This issue can lead to a crash or VM escape.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- qemu-img > 0-0 (version in image is 9.2.4-150700.3.17.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:nfsd: fix heap overflow in NFSv4.0 LOCK replay cacheThe NFSv4.0 replay cache uses a fixed 112-byte inline buffer(rp_ibuf[NFSD4_REPLAY_ISIZE]) to store encoded operation responses.This size was calculated based on OPEN responses and does not accountfor LOCK denied responses, which include the conflicting lock owner asa variable-length field up to 1024 bytes (NFS4_OPAQUE_LIMIT).When a LOCK operation is denied due to a conflict with an existing lockthat has a large owner, nfsd4_encode_operation() copies the full encodedresponse into the undersized replay buffer via read_bytes_from_xdr_buf()with no bounds check. This results in a slab-out-of-bounds write of upto 944 bytes past the end of the buffer, corrupting adjacent heap memory.This can be triggered remotely by an unauthenticated attacker with twocooperating NFSv4.0 clients: one sets a lock with a large owner string,then the other requests a conflicting lock to provoke the denial.We could fix this by increasing NFSD4_REPLAY_ISIZE to allow for a fullopaque, but that would increase the size of every stateowner, when mostlockowners are not that large.Instead, fix this by checking the encoded response length againstNFSD4_REPLAY_ISIZE before copying into the replay buffer. If theresponse is too large, set rp_buflen to 0 to skip caching the replaypayload. The status is still cached, and the client already received thecorrect response on the original request.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:xen/privcmd: restrict usage in unprivileged domUThe Xen privcmd driver allows to issue arbitrary hypercalls fromuser space processes. This is normally no problem, as access isusually limited to root and the hypervisor will deny any hypercallsaffecting other domains.In case the guest is booted using secure boot, however, the privcmddriver would be enabling a root user process to modify e.g. kernelmemory contents, thus breaking the secure boot feature.The only known case where an unprivileged domU is really needing touse the privcmd driver is the case when it is acting as the devicemodel for another guest. In this case all hypercalls issued via theprivcmd driver will target that other guest.Fortunately the privcmd driver can already be locked down to allowonly hypercalls targeting a specific domain, but this mode can beactivated from user land only today.The target domain can be obtained from Xenstore, so when not runningin dom0 restrict the privcmd driver to that target domain from thebeginning, resolving the potential problem of breaking secure boot.This is XSA-482---V2:- defer reading from Xenstore if Xenstore isn't ready yet (Jan Beulich)- wait in open() if target domain isn't known yet- issue message in case no target domain found (Jan Beulich)
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default < 6.4.0-150700.53.37.1 (version in image is 6.4.0-150700.53.34.1).
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Description: gRPC-Go is the Go language implementation of gRPC. Versions prior to 1.79.3 have an authorization bypass resulting from improper input validation of the HTTP/2 `:path` pseudo-header. The gRPC-Go server was too lenient in its routing logic, accepting requests where the `:path` omitted the mandatory leading slash (e.g., `Service/Method` instead of `/Service/Method`). While the server successfully routed these requests to the correct handler, authorization interceptors (including the official `grpc/authz` package) evaluated the raw, non-canonical path string. Consequently, "deny" rules defined using canonical paths (starting with `/`) failed to match the incoming request, allowing it to bypass the policy if a fallback "allow" rule was present. This affects gRPC-Go servers that use path-based authorization interceptors, such as the official RBAC implementation in `google.golang.org/grpc/authz` or custom interceptors relying on `info.FullMethod` or `grpc.Method(ctx)`; AND that have a security policy contains specific "deny" rules for canonical paths but allows other requests by default (a fallback "allow" rule). The vulnerability is exploitable by an attacker who can send raw HTTP/2 frames with malformed `:path` headers directly to the gRPC server. The fix in version 1.79.3 ensures that any request with a `:path` that does not start with a leading slash is immediately rejected with a `codes.Unimplemented` error, preventing it from reaching authorization interceptors or handlers with a non-canonical path string. While upgrading is the most secure and recommended path, users can mitigate the vulnerability using one of the following methods: Use a validating interceptor (recommended mitigation); infrastructure-level normalization; and/or policy hardening.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- containerd > 0-0 (version in image is 1.7.29-150000.132.1).
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Description: Use-after-free (UAF) was possible in the `lzma.LZMADecompressor`, `bz2.BZ2Decompressor`, and `gzip.GzipFile` when a memory allocation fails with a `MemoryError` and the decompression instance is re-used. This scenario can be triggered if the process is under memory pressure. The fix cleans up the dangling pointer in this specific error condition.The vulnerability is only present if the program re-uses decompressor instances across multiple decompression calls even after a `MemoryError` is raised during decompression. Using the helper functions to one-shot decompress data such as `lzma.decompress()`, `bz2.decompress()`, `gzip.decompress()`, and `zlib.decompress()` are not affected as a new decompressor instance is used per call. If the decompressor instance is not re-used after an error condition, this usage is similarly not vulnerable.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- python3 > 0-0 (version in image is 3.6.15-150300.10.109.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:RDMA/umad: Reject negative data_len in ib_umad_writeib_umad_write computes data_len from user-controlled count and theMAD header sizes. With a mismatched user MAD header size and RMPPheader length, data_len can become negative and reach ib_create_send_mad().This can make the padding calculation exceed the segment size and triggeran out-of-bounds memset in alloc_send_rmpp_list().Add an explicit check to reject negative data_len before creating thesend buffer.KASAN splat:[ 211.363464] BUG: KASAN: slab-out-of-bounds in ib_create_send_mad+0xa01/0x11b0[ 211.364077] Write of size 220 at addr ffff88800c3fa1f8 by task spray_thread/102[ 211.365867] ib_create_send_mad+0xa01/0x11b0[ 211.365887] ib_umad_write+0x853/0x1c80
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default < 6.4.0-150700.53.37.1 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:drm/vmwgfx: Return the correct value in vmw_translate_ptr functionsBefore the referenced fixes these functions used a lookup function thatreturned a pointer. This was changed to another lookup function thatreturned an error code with the pointer becoming an out parameter.The error path when the lookup failed was not changed to reflect thischange and the code continued to return the PTR_ERR of the nowuninitialized pointer. This could cause the vmw_translate_ptr functionsto return success when they actually failed causing further uninitializedand OOB accesses.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default < 6.4.0-150700.53.37.1 (version in image is 6.4.0-150700.53.34.1).
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Description: Unknown.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- xen-libs > 0-0 (version in image is 4.20.2_08-150700.3.28.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:crypto: algif_aead - Revert to operating out-of-placeThis mostly reverts commit 72548b093ee3 except for the copying ofthe associated data.There is no benefit in operating in-place in algif_aead since thesource and destination come from different mappings. Get rid ofall the complexity added for in-place operation and just copy theAD directly.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:net/smc: fix double-free of smc_spd_priv when tee() duplicates splice pipe buffersmc_rx_splice() allocates one smc_spd_priv per pipe_buffer and storesthe pointer in pipe_buffer.private. The pipe_buf_operations for thesebuffers used .get = generic_pipe_buf_get, which only increments the pagereference count when tee(2) duplicates a pipe buffer. The smc_spd_privpointer itself was not handled, so after tee() both the original and thecloned pipe_buffer share the same smc_spd_priv *.When both pipes are subsequently released, smc_rx_pipe_buf_release() iscalled twice against the same object: 1st call: kfree(priv) sock_put(sk) smc_rx_update_cons() [correct] 2nd call: kfree(priv) sock_put(sk) smc_rx_update_cons() [UAF]KASAN reports a slab-use-after-free in smc_rx_pipe_buf_release(), whichthen escalates to a NULL-pointer dereference and kernel panic viasmc_rx_update_consumer() when it chases the freed priv->smc pointer: BUG: KASAN: slab-use-after-free in smc_rx_pipe_buf_release+0x78/0x2a0 Read of size 8 at addr ffff888004a45740 by task smc_splice_tee_/74 Call Trace: dump_stack_lvl+0x53/0x70 print_report+0xce/0x650 kasan_report+0xc6/0x100 smc_rx_pipe_buf_release+0x78/0x2a0 free_pipe_info+0xd4/0x130 pipe_release+0x142/0x160 __fput+0x1c6/0x490 __x64_sys_close+0x4f/0x90 do_syscall_64+0xa6/0x1a0 entry_SYSCALL_64_after_hwframe+0x77/0x7f BUG: kernel NULL pointer dereference, address: 0000000000000020 RIP: 0010:smc_rx_update_consumer+0x8d/0x350 Call Trace: smc_rx_pipe_buf_release+0x121/0x2a0 free_pipe_info+0xd4/0x130 pipe_release+0x142/0x160 __fput+0x1c6/0x490 __x64_sys_close+0x4f/0x90 do_syscall_64+0xa6/0x1a0 entry_SYSCALL_64_after_hwframe+0x77/0x7f Kernel panic - not syncing: Fatal exceptionBeyond the memory-safety problem, duplicating an SMC splice buffer issemantically questionable: smc_rx_update_cons() would advance theconsumer cursor twice for the same data, corrupting receive-windowaccounting. A refcount on smc_spd_priv could fix the double-free, butthe cursor-accounting issue would still need to be addressed separately.The .get callback is invoked by both tee(2) and splice_pipe_to_pipe()for partial transfers; both will now return -EFAULT. Users who needto duplicate SMC socket data must use a copy-based read path.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:bcache: fix cached_dev.sb_bio use-after-free and crashIn our production environment, we have received multiple crash reportsregarding libceph, which have caught our attention:```[6888366.280350] Call Trace:[6888366.280452] blk_update_request+0x14e/0x370[6888366.280561] blk_mq_end_request+0x1a/0x130[6888366.280671] rbd_img_handle_request+0x1a0/0x1b0 [rbd][6888366.280792] rbd_obj_handle_request+0x32/0x40 [rbd][6888366.280903] __complete_request+0x22/0x70 [libceph][6888366.281032] osd_dispatch+0x15e/0xb40 [libceph][6888366.281164] ? inet_recvmsg+0x5b/0xd0[6888366.281272] ? ceph_tcp_recvmsg+0x6f/0xa0 [libceph][6888366.281405] ceph_con_process_message+0x79/0x140 [libceph][6888366.281534] ceph_con_v1_try_read+0x5d7/0xf30 [libceph][6888366.281661] ceph_con_workfn+0x329/0x680 [libceph]```After analyzing the coredump file, we found that the address ofdc->sb_bio has been freed. We know that cached_dev is only freed when itis stopped.Since sb_bio is a part of struct cached_dev, rather than an alloc everytime. If the device is stopped while writing to the superblock, thereleased address will be accessed at endio.This patch hopes to wait for sb_write to complete in cached_dev_free.It should be noted that we analyzed the cause of the problem, then tellall details to the QWEN and adopted the modifications it made.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:media: mediatek: vcodec: fix use-after-free in encoder release pathThe fops_vcodec_release() function frees the context structure (ctx)without first cancelling any pending or running work in ctx->encode_work.This creates a race window where the workqueue handler (mtk_venc_worker)may still be accessing the context memory after it has been freed.Race condition: CPU 0 (release path) CPU 1 (workqueue) --------------------- ------------------ fops_vcodec_release() v4l2_m2m_ctx_release() v4l2_m2m_cancel_job() // waits for m2m job "done" mtk_venc_worker() v4l2_m2m_job_finish() // m2m job "done" // BUT worker still running! // post-job_finish access: other ctx dereferences // UAF if ctx already freed // returns (job "done") kfree(ctx) // ctx freedRoot cause: The v4l2_m2m_ctx_release() only waits for the m2m joblifecycle (via TRANS_RUNNING flag), not the workqueue lifecycle.After v4l2_m2m_job_finish() is called, the m2m framework considersthe job complete and v4l2_m2m_ctx_release() returns, but the workerfunction continues executing and may still access ctx.The work is queued during encode operations via: queue_work(ctx->dev->encode_workqueue, &ctx->encode_work)The worker function accesses ctx->m2m_ctx, ctx->dev, and other ctxfields even after calling v4l2_m2m_job_finish().This vulnerability was confirmed with KASAN by running an instrumentedtest module that widens the post-job_finish race window. KASAN detected: BUG: KASAN: slab-use-after-free in mtk_venc_worker+0x159/0x180 Read of size 4 at addr ffff88800326e000 by task kworker/u8:0/12 Workqueue: mtk_vcodec_enc_wq mtk_venc_worker Allocated by task 47: __kasan_kmalloc+0x7f/0x90 fops_vcodec_open+0x85/0x1a0 Freed by task 47: __kasan_slab_free+0x43/0x70 kfree+0xee/0x3a0 fops_vcodec_release+0xb7/0x190Fix this by calling cancel_work_sync(&ctx->encode_work) before kfree(ctx).This ensures the workqueue handler is both cancelled (if pending) andsynchronized (waits for any running handler to complete) before thecontext is freed.Placement rationale: The fix is placed after v4l2_ctrl_handler_free()and before list_del_init(&ctx->list). At this point, all m2m operationsare done (v4l2_m2m_ctx_release() has returned), and we need to ensurethe workqueue is synchronized before removing ctx from the list andfreeing it.Note: The open error path does NOT need cancel_work_sync() becauseINIT_WORK() only initializes the work structure - it does not scheduleit. Work is only scheduled later during device_run() operations.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:ocfs2: fix use-after-free in ocfs2_fault() when VM_FAULT_RETRYfilemap_fault() may drop the mmap_lock before returning VM_FAULT_RETRY,as documented in mm/filemap.c: "If our return value has VM_FAULT_RETRY set, it's because the mmap_lock may be dropped before doing I/O or by lock_folio_maybe_drop_mmap()."When this happens, a concurrent munmap() can call remove_vma() and freethe vm_area_struct via RCU. The saved 'vma' pointer in ocfs2_fault() thenbecomes a dangling pointer, and the subsequent trace_ocfs2_fault() calldereferences it -- a use-after-free.Fix this by saving ip_blkno as a plain integer before callingfilemap_fault(), and removing vma from the trace event. Sinceip_blkno is copied by value before the lock can be dropped, itremains valid regardless of what happens to the vma or inodeafterward.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:ALSA: ctxfi: Limit PTP to a single pageCommit 391e69143d0a increased CT_PTP_NUM from 1 to 4 to support 256playback streams, but the additional pages are not used by the cardcorrectly. The CT20K2 hardware already has multiple VMEM_PTPALregisters, but using them separately would require refactoring theentire virtual memory allocation logic.ct_vm_map() always uses PTEs in vm->ptp[0].area regardless ofCT_PTP_NUM. On AMD64 systems, a single PTP covers 512 PTEs (2M). Whenaggregate memory allocations exceed this limit, ct_vm_map() tries toaccess beyond the allocated space and causes a page fault: BUG: unable to handle page fault for address: ffffd4ae8a10a000 Oops: Oops: 0002 [#1] SMP PTI RIP: 0010:ct_vm_map+0x17c/0x280 [snd_ctxfi] Call Trace: atc_pcm_playback_prepare+0x225/0x3b0 ct_pcm_playback_prepare+0x38/0x60 snd_pcm_do_prepare+0x2f/0x50 snd_pcm_action_single+0x36/0x90 snd_pcm_action_nonatomic+0xbf/0xd0 snd_pcm_ioctl+0x28/0x40 __x64_sys_ioctl+0x97/0xe0 do_syscall_64+0x81/0x610 entry_SYSCALL_64_after_hwframe+0x76/0x7eRevert CT_PTP_NUM to 1. The 256 SRC_RESOURCE_NUM and playback_countremain unchanged.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: A flaw was found in binutils. A heap-buffer-overflow vulnerability exists when processing a specially crafted XCOFF (Extended Common Object File Format) object file during linking. A local attacker could trick a user into processing this malicious file, which could lead to arbitrary code execution, allowing the attacker to run unauthorized commands, or cause a denial of service, making the system unavailable.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- binutils > 0-0 (version in image is 2.45-150100.7.57.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:mm: call ->free_folio() directly in folio_unmap_invalidate()We can only call filemap_free_folio() if we have a reference to (or hold alock on) the mapping. Otherwise, we've already removed the folio from themapping so it no longer pins the mapping and the mapping can be removed,causing a use-after-free when accessing mapping->a_ops.Follow the same pattern as __remove_mapping() and load the free_foliofunction pointer before dropping the lock on the mapping. That lets usmake filemap_free_folio() static as this was the only caller outsidefilemap.c.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:ksmbd: require 3 sub-authorities before reading sub_auth[2]parse_dacl() compares each ACE SID against sid_unix_NFS_mode and onmatch reads sid.sub_auth[2] as the file mode. If sid_unix_NFS_mode isthe prefix S-1-5-88-3 with num_subauth = 2 then compare_sids() comparesonly min(num_subauth, 2) sub-authorities so a client SID withnum_subauth = 2 and sub_auth = {88, 3} will match.If num_subauth = 2 and the ACE is placed at the very end of the securitydescriptor, sub_auth[2] will be 4 bytes past end_of_acl. Theout-of-band bytes will then be masked to the low 9 bits and applied asthe file's POSIX mode, probably not something that is good to havehappen.Fix this up by forcing the SID to actually carry a third sub-authoritybefore reading it at all.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: SSH servers which implement file transfer protocols are vulnerable to a denial of service attack from clients which complete the key exchange slowly, or not at all, causing pending content to be read into memory, but never transmitted.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- amazon-ssm-agent > 0-0 (version in image is 3.3.1611.0-150000.5.26.1).
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Description: SSH clients receiving SSH_AGENT_SUCCESS when expecting a typed response will panic and cause early termination of the client process.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- docker > 0-0 (version in image is 28.5.1_ce-150000.245.2).
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Description: In the Linux kernel, the following vulnerability has been resolved:ocfs2: fix possible deadlock between unlink and dio_end_io_writeocfs2_unlink takes orphan dir inode_lock first and then ip_alloc_sem,while in ocfs2_dio_end_io_write, it acquires these locks in reverse order.This creates an ABBA lock ordering violation on lock classesocfs2_sysfile_lock_key[ORPHAN_DIR_SYSTEM_INODE] andocfs2_file_ip_alloc_sem_key.Lock Chain #0 (orphan dir inode_lock -> ip_alloc_sem):ocfs2_unlink ocfs2_prepare_orphan_dir ocfs2_lookup_lock_orphan_dir inode_lock(orphan_dir_inode) <- lock A __ocfs2_prepare_orphan_dir ocfs2_prepare_dir_for_insert ocfs2_extend_dir ocfs2_expand_inline_dir down_write(&oi->ip_alloc_sem) <- Lock BLock Chain #1 (ip_alloc_sem -> orphan dir inode_lock):ocfs2_dio_end_io_write down_write(&oi->ip_alloc_sem) <- Lock B ocfs2_del_inode_from_orphan() inode_lock(orphan_dir_inode) <- Lock ADeadlock Scenario: CPU0 (unlink) CPU1 (dio_end_io_write) ------ ------ inode_lock(orphan_dir_inode) down_write(ip_alloc_sem) down_write(ip_alloc_sem) inode_lock(orphan_dir_inode)Since ip_alloc_sem is to protect allocation changes, which is unrelatedwith operations in ocfs2_del_inode_from_orphan. So moveocfs2_del_inode_from_orphan out of ip_alloc_sem to fix the deadlock.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:net: stmmac: fix integer underflow in chain modeThe jumbo_frm() chain-mode implementation unconditionally computes len = nopaged_len - bmax;where nopaged_len = skb_headlen(skb) (linear bytes only) and bmax isBUF_SIZE_8KiB or BUF_SIZE_2KiB. However, the caller stmmac_xmit()decides to invoke jumbo_frm() based on skb->len (total length includingpage fragments): is_jumbo = stmmac_is_jumbo_frm(priv, skb->len, enh_desc);When a packet has a small linear portion (nopaged_len <= bmax) but alarge total length due to page fragments (skb->len > bmax), thesubtraction wraps as an unsigned integer, producing a huge len value(~0xFFFFxxxx). This causes the while (len != 0) loop to executehundreds of thousands of iterations, passing skb->data + bmax * ipointers far beyond the skb buffer to dma_map_single(). On IOMMU-lessSoCs (the typical deployment for stmmac), this maps arbitrary kernelmemory to the DMA engine, constituting a kernel memory disclosure andpotential memory corruption from hardware.Fix this by introducing a buf_len local variable clamped tomin(nopaged_len, bmax). Computing len = nopaged_len - buf_len is thenalways safe: it is zero when the linear portion fits within a singledescriptor, causing the while (len != 0) loop to be skipped naturally,and the fragment loop in stmmac_xmit() handles page fragments afterward.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:tipc: fix bc_ackers underflow on duplicate GRP_ACK_MSGThe GRP_ACK_MSG handler in tipc_group_proto_rcv() currently decrementsbc_ackers on every inbound group ACK, even when the same member hasalready acknowledged the current broadcast round.Because bc_ackers is a u16, a duplicate ACK received after the lastlegitimate ACK wraps the counter to 65535. Once wrapped,tipc_group_bc_cong() keeps reporting congestion and later groupbroadcasts on the affected socket stay blocked until the group isrecreated.Fix this by ignoring duplicate or stale ACKs before touching bc_acked orbc_ackers. This makes repeated GRP_ACK_MSG handling idempotent andprevents the underflow path.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: BuildKit is a toolkit for converting source code to build artifacts in an efficient, expressive and repeatable manner. Prior to version 0.28.1, insufficient validation of Git URL fragment subdir components may allow access to files outside the checked-out Git repository root. Possible access is limited to files on the same mounted filesystem. The issue has been fixed in version v0.28.1 The issue affects only builds that use Git URLs with a subpath component. As a workaround, avoid building Dockerfiles from untrusted sources or using the subdir component from an untrusted Git repository where the subdir component could point to a symlink.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- docker > 0-0 (version in image is 28.5.1_ce-150000.245.2).
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Description: Go JOSE provides an implementation of the Javascript Object Signing and Encryption set of standards in Go, including support for JSON Web Encryption (JWE), JSON Web Signature (JWS), and JSON Web Token (JWT) standards. Prior to 4.1.4 and 3.0.5, decrypting a JSON Web Encryption (JWE) object will panic if the alg field indicates a key wrapping algorithm (one ending in KW, with the exception of A128GCMKW, A192GCMKW, and A256GCMKW) and the encrypted_key field is empty. The panic happens when cipher.KeyUnwrap() in key_wrap.go attempts to allocate a slice with a zero or negative length based on the length of the encrypted_key. This code path is reachable from ParseEncrypted() / ParseEncryptedJSON() / ParseEncryptedCompact() followed by Decrypt() on the resulting object. Note that the parse functions take a list of accepted key algorithms. If the accepted key algorithms do not include any key wrapping algorithms, parsing will fail and the application will be unaffected. This panic is also reachable by calling cipher.KeyUnwrap() directly with any ciphertext parameter less than 16 bytes long, but calling this function directly is less common. Panics can lead to denial of service. This vulnerability is fixed in 4.1.4 and 3.0.5.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- containerd > 0-0 (version in image is 1.7.29-150000.132.1).
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Description: In OpenSSH before 10.3, a file downloaded by scp may be installed setuid or setgid, an outcome contrary to some users' expectations, if the download is performed as root with -O (legacy scp protocol) and without -p (preserve mode).
Packages affected:
- sle-module-desktop-applications-release == 15.7 (version in image is 15.7-150700.28.1).
- openssh > 0-0 (version in image is 9.6p1-150600.6.34.1).
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Description: The iconv() function in the GNU C Library versions 2.43 and earlier may crash due to an assertion failure when converting inputs from the IBM1390 or IBM1399 character sets, which may be used to remotely crash an application.This vulnerability can be trivially mitigated by removing the IBM1390 and IBM1399 character sets from systems that do not need them.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- glibc > 0-0 (version in image is 2.38-150600.14.46.1).
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Description: When an Expat parser with a registered ElementDeclHandler parses an inlinedocument type definition containing a deeply nested content model a C stackoverflow occurs.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- python3 > 0-0 (version in image is 3.6.15-150300.10.109.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:netfilter: ip6t_eui64: reject invalid MAC header for all packets`eui64_mt6()` derives a modified EUI-64 from the Ethernet source addressand compares it with the low 64 bits of the IPv6 source address.The existing guard only rejects an invalid MAC header when`par->fragoff != 0`. For packets with `par->fragoff == 0`, `eui64_mt6()`can still reach `eth_hdr(skb)` even when the MAC header is not valid.Fix this by removing the `par->fragoff != 0` condition so that packetswith an invalid MAC header are rejected before accessing `eth_hdr(skb)`.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: XZ Utils provide a general-purpose data-compression library plus command-line tools. Prior to version 5.8.3, if lzma_index_decoder() was used to decode an Index that contained no Records, the resulting lzma_index was left in a state where where a subsequent lzma_index_append() would allocate too little memory, and a buffer overflow would occur. This issue has been patched in version 5.8.3.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- liblzma5 > 0-0 (version in image is 5.4.1-150600.3.3.1).
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Description: In rsync 3.0.1 through 3.4.1, receive_xattr relies on an untrusted length value during a qsort call, leading to a receiver use-after-free. The victim must run rsync with -X (aka --xattrs). On Linux, many (but not all) common configurations are vulnerable. Non-Linux platforms are more widely vulnerable.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- rsync > 0-0 (version in image is 3.2.7-150600.3.14.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:smb: client: fix OOB reads parsing symlink error responseWhen a CREATE returns STATUS_STOPPED_ON_SYMLINK, smb2_check_message()returns success without any length validation, leaving the symlinkparsers as the only defense against an untrusted server.symlink_data() walks SMB 3.1.1 error contexts with the loop test "p ErrorId at offset 4 and p->ErrorDataLength at offset0. When the server-controlled ErrorDataLength advances p to within 1-7bytes of end, the next iteration will read past it. When the matchingcontext is found, sym->SymLinkErrorTag is read at offset 4 fromp->ErrorContextData with no check that the symlink header itself fits.smb2_parse_symlink_response() then bounds-checks the substitute nameusing SMB2_SYMLINK_STRUCT_SIZE as the offset of PathBuffer fromiov_base. That value is computed as sizeof(smb2_err_rsp) +sizeof(smb2_symlink_err_rsp), which is correct only whenErrorContextCount == 0.With at least one error context the symlink data sits 8 bytes deeper,and each skipped non-matching context shifts it further by 8 +ALIGN(ErrorDataLength, 8). The check is too short, allowing thesubstitute name read to run past iov_len. The out-of-bound heap bytesare UTF-16-decoded into the symlink target and returned to userspace viareadlink(2).Fix this all up by making the loops test require the full context headerto fit, rejecting sym if its header runs past end, and bound thesubstitute name against the actual position of sym->PathBuffer ratherthan a fixed offset.Because sub_offs and sub_len are 16bits, the pointer math will notoverflow here with the new greater-than.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:smb: client: fix off-by-8 bounds check in check_wsl_eas()The bounds check uses (u8 *)ea + nlen + 1 + vlen as the end of the EAname and value, but ea_data sits at offset sizeof(structsmb2_file_full_ea_info) = 8 from ea, not at offset 0. The strncmp()later reads ea->ea_data[0..nlen-1] and the value bytes follow atea_data[nlen+1..nlen+vlen], so the actual end is ea->ea_data + nlen + 1+ vlen. Isn't pointer math fun?The earlier check (u8 *)ea > end - sizeof(*ea) only guarantees the8-byte header is in bounds, but since the last EA is placed within 8bytes of the end of the response, the name and value bytes are read pastthe end of iov.Fix this mess all up by using ea->ea_data as the base for the boundscheck.An "untrusted" server can use this to leak up to 8 bytes of kernel heapinto the EA name comparison and influence which WSL xattr the data isinterpreted as.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: Mitgation of CVE-2026-4519 was incomplete. If the URL contained "%action" the mitigation could be bypassed for certain browser types the "webbrowser.open()" API could have commands injected into the underlying shell. See CVE-2026-4519 for details.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- python3 > 0-0 (version in image is 3.6.15-150300.10.109.1).
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Description: EDK2 contains a vulnerability in BIOS where an attacker may cause “Protection Mechanism Failure” by local access. Successful exploitation of this vulnerability will lead to arbitrary code execution and impact Confidentiality, Integrity, and Availability.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- qemu-img > 0-0 (version in image is 9.2.4-150700.3.17.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:scsi: imm: Fix use-after-free bug caused by unfinished delayed workThe delayed work item 'imm_tq' is initialized in imm_attach() andscheduled via imm_queuecommand() for processing SCSI commands. When theIMM parallel port SCSI host adapter is detached through imm_detach(),the imm_struct device instance is deallocated.However, the delayed work might still be pending or executingwhen imm_detach() is called, leading to use-after-free bugswhen the work function imm_interrupt() accesses the alreadyfreed imm_struct memory.The race condition can occur as follows:CPU 0(detach thread) | CPU 1 | imm_queuecommand() | imm_queuecommand_lck()imm_detach() | schedule_delayed_work() kfree(dev) //FREE | imm_interrupt() | dev = container_of(...) //USE dev-> //USEAdd disable_delayed_work_sync() in imm_detach() to guarantee propercancellation of the delayed work item before imm_struct is deallocated.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:iommu/sva: invalidate stale IOTLB entries for kernel address spaceIntroduce a new IOMMU interface to flush IOTLB paging cache entries forthe CPU kernel address space. This interface is invoked from the x86architecture code that manages combined user and kernel page tables,specifically before any kernel page table page is freed and reused.This addresses the main issue with vfree() which is a common occurrenceand can be triggered by unprivileged users. While this resolves theprimary problem, it doesn't address some extremely rare case related tomemory unplug of memory that was present as reserved memory at boot, whichcannot be triggered by unprivileged users. The discussion can be found atthe link below.Enable SVA on x86 architecture since the IOMMU can now receivenotification to flush the paging cache before freeing the CPU kernel pagetable pages.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:rxrpc: Fix recvmsg() unconditional requeueIf rxrpc_recvmsg() fails because MSG_DONTWAIT was specified but the call atthe front of the recvmsg queue already has its mutex locked, it requeuesthe call - whether or not the call is already queued. The call may be onthe queue because MSG_PEEK was also passed and so the call was not dequeuedor because the I/O thread requeued it.The unconditional requeue may then corrupt the recvmsg queue, leading tothings like UAFs or refcount underruns.Fix this by only requeuing the call if it isn't already on the queue - andmoving it to the front if it is already queued. If we don't queue it, wehave to put the ref we obtained by dequeuing it.Also, MSG_PEEK doesn't dequeue the call so shouldn't callrxrpc_notify_socket() for the call if we didn't use up all the data on thequeue, so fix that also.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:drm/exynos: vidi: use ctx->lock to protect struct vidi_context member variables related to memory alloc/freeExynos Virtual Display driver performs memory alloc/free operationswithout lock protection, which easily causes concurrency problem.For example, use-after-free can occur in race scenario like this:``` CPU0 CPU1 CPU2 ---- ---- ---- vidi_connection_ioctl() if (vidi->connection) // true drm_edid = drm_edid_alloc(); // alloc drm_edid ... ctx->raw_edid = drm_edid; ... drm_mode_getconnector() drm_helper_probe_single_connector_modes() vidi_get_modes() if (ctx->raw_edid) // true drm_edid_dup(ctx->raw_edid); if (!drm_edid) // false ... vidi_connection_ioctl() if (vidi->connection) // false drm_edid_free(ctx->raw_edid); // free drm_edid ... drm_edid_alloc(drm_edid->edid) kmemdup(edid); // UAF!! ...```To prevent these vulns, at least in vidi_context, member variables relatedto memory alloc/free should be protected with ctx->lock.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:netfilter: nf_tables: fix use-after-free in nf_tables_addchain()nf_tables_addchain() publishes the chain to table->chains vialist_add_tail_rcu() (in nft_chain_add()) before registering hooks.If nf_tables_register_hook() then fails, the error path callsnft_chain_del() (list_del_rcu()) followed by nf_tables_chain_destroy()with no RCU grace period in between.This creates two use-after-free conditions: 1) Control-plane: nf_tables_dump_chains() traverses table->chains under rcu_read_lock(). A concurrent dump can still be walking the chain when the error path frees it. 2) Packet path: for NFPROTO_INET, nf_register_net_hook() briefly installs the IPv4 hook before IPv6 registration fails. Packets entering nft_do_chain() via the transient IPv4 hook can still be dereferencing chain->blob_gen_X when the error path frees the chain.Add synchronize_rcu() between nft_chain_del() and the chain destroyso that all RCU readers -- both dump threads and in-flight packetevaluation -- have finished before the chain is freed.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default < 6.4.0-150700.53.37.1 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:espintcp: Fix race condition in espintcp_close()This issue was discovered during a code audit.After cancel_work_sync() is called from espintcp_close(),espintcp_tx_work() can still be scheduled from paths such asthe Delayed ACK handler or ksoftirqd.As a result, the espintcp_tx_work() worker may dereference afreed espintcp ctx or sk.The following is a simple race scenario: cpu0 cpu1 espintcp_close() cancel_work_sync(&ctx->work); espintcp_write_space() schedule_work(&ctx->work);To prevent this race condition, cancel_work_sync() isreplaced with disable_work_sync().
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:tls: Fix race condition in tls_sw_cancel_work_tx()This issue was discovered during a code audit.After cancel_delayed_work_sync() is called from tls_sk_proto_close(),tx_work_handler() can still be scheduled from paths such as theDelayed ACK handler or ksoftirqd.As a result, the tx_work_handler() worker may dereference a freedTLS object.The following is a simple race scenario: cpu0 cpu1tls_sk_proto_close() tls_sw_cancel_work_tx() tls_write_space() tls_sw_write_space() if (!test_and_set_bit(BIT_TX_SCHEDULED, &tx_ctx->tx_bitmask)) set_bit(BIT_TX_SCHEDULED, &ctx->tx_bitmask); cancel_delayed_work_sync(&ctx->tx_work.work); schedule_delayed_work(&tx_ctx->tx_work.work, 0);To prevent this race condition, cancel_delayed_work_sync() isreplaced with disable_delayed_work_sync().
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:perf/core: Fix refcount bug and potential UAF in perf_mmapSyzkaller reported a refcount_t: addition on 0; use-after-free warningin perf_mmap.The issue is caused by a race condition between a failing mmap() setupand a concurrent mmap() on a dependent event (e.g., using outputredirection).In perf_mmap(), the ring_buffer (rb) is allocated and assigned toevent->rb with the mmap_mutex held. The mutex is then released toperform map_range().If map_range() fails, perf_mmap_close() is called to clean up.However, since the mutex was dropped, another thread attaching tothis event (via inherited events or output redirection) can acquirethe mutex, observe the valid event->rb pointer, and attempt toincrement its reference count. If the cleanup path has alreadydropped the reference count to zero, this results in ause-after-free or refcount saturation warning.Fix this by extending the scope of mmap_mutex to cover themap_range() call. This ensures that the ring buffer initializationand mapping (or cleanup on failure) happens atomically effectively,preventing other threads from accessing a half-initialized ordying ring buffer.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:apparmor: fix unprivileged local user can do privileged policy managementAn unprivileged local user can load, replace, and remove profiles byopening the apparmorfs interfaces, via a confused deputy attack, bypassing the opened fd to a privileged process, and getting theprivileged process to write to the interface.This does require a privileged target that can be manipulated to dothe write for the unprivileged process, but once such access isachieved full policy management is possible and all the possibleimplications that implies: removing confinement, DoS of system ortarget applications by denying all execution, by-passing theunprivileged user namespace restriction, to exploiting kernel bugs fora local privilege escalation.The policy management interface can not have its permissions simplychanged from 0666 to 0600 because non-root processes need to be ableto load policy to different policy namespaces.Instead ensure the task writing the interface has privileges thatare a subset of the task that opened the interface. This is alreadydone via policy for confined processes, but unconfined can delegateaccess to the opened fd, by-passing the usual policy check.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:netfilter: nf_tables: unconditionally bump set->nelems before insertionIn case that the set is full, a new element gets published then removedwithout waiting for the RCU grace period, while RCU reader can bewalking over it already.To address this issue, add the element transaction even if set is full,but toggle the set_full flag to report -ENFILE so the abort path safelyunwinds the set to its previous state.As for element updates, decrement set->nelems to restore it.A simpler fix is to call synchronize_rcu() in the error path.However, with a large batch adding elements to already maxed-out set,this could cause noticeable slowdown of such batches.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default < 6.4.0-150700.53.37.1 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:netfilter: xt_IDLETIMER: reject rev0 reuse of ALARM timer labelsIDLETIMER revision 0 rules reuse existing timers by label and always callmod_timer() on timer->timer.If the label was created first by revision 1 with XT_IDLETIMER_ALARM,the object uses alarm timer semantics and timer->timer is never initialized.Reusing that object from revision 0 causes mod_timer() on an uninitializedtimer_list, triggering debugobjects warnings and possible panic whenpanic_on_warn=1.Fix this by rejecting revision 0 rule insertion when an existing timer withthe same label is of ALARM type.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default < 6.4.0-150700.53.37.1 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:netfilter: nf_tables: always walk all pending catchall elementsDuring transaction processing we might have more than one catchall element:1 live catchall element and 1 pending element that is coming as part of thenew batch.If the map holding the catchall elements is also going away, itsrequired to toggle all catchall elements and not just the first viablecandidate.Otherwise, we get: WARNING: ./include/net/netfilter/nf_tables.h:1281 at nft_data_release+0xb7/0xe0 [nf_tables], CPU#2: nft/1404 RIP: 0010:nft_data_release+0xb7/0xe0 [nf_tables] [..] __nft_set_elem_destroy+0x106/0x380 [nf_tables] nf_tables_abort_release+0x348/0x8d0 [nf_tables] nf_tables_abort+0xcf2/0x3ac0 [nf_tables] nfnetlink_rcv_batch+0x9c9/0x20e0 [..]
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default < 6.4.0-150700.53.37.1 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:netfilter: nf_tables: release flowtable after rcu grace period on errorCall synchronize_rcu() after unregistering the hooks from error path,since a hook that already refers to this flowtable can be alreadyregistered, exposing this flowtable to packet path and nfnetlink_hookcontrol plane.This error path is rare, it should only happen by reaching the maximumnumber hooks or by failing to set up to hardware offload, just callsynchronize_rcu().There is a check for already used device hooks by different flowtablethat could result in EEXIST at this late stage. The hook parser can beupdated to perform this check earlier to this error path really becomesrarely exercised.Uncovered by KASAN reported as use-after-free from nfnetlink_hook pathwhen dumping hooks.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:bridge: cfm: Fix race condition in peer_mep deletionWhen a peer MEP is being deleted, cancel_delayed_work_sync() is calledon ccm_rx_dwork before freeing. However, br_cfm_frame_rx() runs insoftirq context under rcu_read_lock (without RTNL) and can re-scheduleccm_rx_dwork via ccm_rx_timer_start() between cancel_delayed_work_sync()returning and kfree_rcu() being called.The following is a simple race scenario: cpu0 cpu1mep_delete_implementation() cancel_delayed_work_sync(ccm_rx_dwork); br_cfm_frame_rx() // peer_mep still in hlist if (peer_mep->ccm_defect) ccm_rx_timer_start() queue_delayed_work(ccm_rx_dwork) hlist_del_rcu(&peer_mep->head); kfree_rcu(peer_mep, rcu); ccm_rx_work_expired() // on freed peer_mepTo prevent this, cancel_delayed_work_sync() is replaced withdisable_delayed_work_sync() in both peer MEP deletion paths, sothat subsequent queue_delayed_work() calls from br_cfm_frame_rx()are silently rejected.The cc_peer_disable() helper retains cancel_delayed_work_sync()because it is also used for the CC enable/disable toggle path wherethe work must remain re-schedulable.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:netfilter: bpf: defer hook memory release until rcu readers are doneYiming Qian reports UaF when concurrent process is dumping hooks vianfnetlink_hooks:BUG: KASAN: slab-use-after-free in nfnl_hook_dump_one.isra.0+0xe71/0x10f0Read of size 8 at addr ffff888003edbf88 by task poc/79Call Trace: nfnl_hook_dump_one.isra.0+0xe71/0x10f0 netlink_dump+0x554/0x12b0 nfnl_hook_get+0x176/0x230 [..]Defer release until after concurrent readers have completed.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:net/sched: teql: Fix double-free in teql_master_xmitWhenever a TEQL devices has a lockless Qdisc as root, qdisc_reset shouldbe called using the seq_lock to avoid racing with the datapath. Failureto do so may cause crashes like the following:[ 238.028993][ T318] BUG: KASAN: double-free in skb_release_data (net/core/skbuff.c:1139)[ 238.029328][ T318] Free of addr ffff88810c67ec00 by task poc_teql_uaf_ke/318[ 238.029749][ T318][ 238.029900][ T318] CPU: 3 UID: 0 PID: 318 Comm: poc_teql_ke Not tainted 7.0.0-rc3-00149-ge5b31d988a41 #704 PREEMPT(full)[ 238.029906][ T318] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011[ 238.029910][ T318] Call Trace:[ 238.029913][ T318] [ 238.029916][ T318] dump_stack_lvl (lib/dump_stack.c:122)[ 238.029928][ T318] print_report (mm/kasan/report.c:379 mm/kasan/report.c:482)[ 238.029940][ T318] ? skb_release_data (net/core/skbuff.c:1139)[ 238.029944][ T318] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)...[ 238.029957][ T318] ? skb_release_data (net/core/skbuff.c:1139)[ 238.029969][ T318] kasan_report_invalid_free (mm/kasan/report.c:221 mm/kasan/report.c:563)[ 238.029979][ T318] ? skb_release_data (net/core/skbuff.c:1139)[ 238.029989][ T318] check_slab_allocation (mm/kasan/common.c:231)[ 238.029995][ T318] kmem_cache_free (mm/slub.c:2637 (discriminator 1) mm/slub.c:6168 (discriminator 1) mm/slub.c:6298 (discriminator 1))[ 238.030004][ T318] skb_release_data (net/core/skbuff.c:1139)...[ 238.030025][ T318] sk_skb_reason_drop (net/core/skbuff.c:1256)[ 238.030032][ T318] pfifo_fast_reset (./include/linux/ptr_ring.h:171 ./include/linux/ptr_ring.h:309 ./include/linux/skb_array.h:98 net/sched/sch_generic.c:827)[ 238.030039][ T318] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)...[ 238.030054][ T318] qdisc_reset (net/sched/sch_generic.c:1034)[ 238.030062][ T318] teql_destroy (./include/linux/spinlock.h:395 net/sched/sch_teql.c:157)[ 238.030071][ T318] __qdisc_destroy (./include/net/pkt_sched.h:328 net/sched/sch_generic.c:1077)[ 238.030077][ T318] qdisc_graft (net/sched/sch_api.c:1062 net/sched/sch_api.c:1053 net/sched/sch_api.c:1159)[ 238.030089][ T318] ? __pfx_qdisc_graft (net/sched/sch_api.c:1091)[ 238.030095][ T318] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)[ 238.030102][ T318] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)[ 238.030106][ T318] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)[ 238.030114][ T318] tc_get_qdisc (net/sched/sch_api.c:1529 net/sched/sch_api.c:1556)...[ 238.072958][ T318] Allocated by task 303 on cpu 5 at 238.026275s:[ 238.073392][ T318] kasan_save_stack (mm/kasan/common.c:58)[ 238.073884][ T318] kasan_save_track (mm/kasan/common.c:64 (discriminator 5) mm/kasan/common.c:79 (discriminator 5))[ 238.074230][ T318] __kasan_slab_alloc (mm/kasan/common.c:369)[ 238.074578][ T318] kmem_cache_alloc_node_noprof (./include/linux/kasan.h:253 mm/slub.c:4542 mm/slub.c:4869 mm/slub.c:4921)[ 238.076091][ T318] kmalloc_reserve (net/core/skbuff.c:616 (discriminator 107))[ 238.076450][ T318] __alloc_skb (net/core/skbuff.c:713)[ 238.076834][ T318] alloc_skb_with_frags (./include/linux/skbuff.h:1383 net/core/skbuff.c:6763)[ 238.077178][ T318] sock_alloc_send_pskb (net/core/sock.c:2997)[ 238.077520][ T318] packet_sendmsg (net/packet/af_packet.c:2926 net/packet/af_packet.c:3019 net/packet/af_packet.c:3108)[ 238.081469][ T318][ 238.081870][ T318] Freed by task 299 on cpu 1 at 238.028496s:[ 238.082761][ T318] kasan_save_stack (mm/kasan/common.c:58)[ 238.083481][ T318] kasan_save_track (mm/kasan/common.c:64 (discriminator 5) mm/kasan/common.c:79 (discriminator 5))[ 238.085348][ T318] kasan_save_free_info (mm/kasan/generic.c:587 (discriminator 1))[ 238.085900][ T318] __kasan_slab_free (mm/---truncated---
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:net/smc: fix NULL dereference and UAF in smc_tcp_syn_recv_sock()Syzkaller reported a panic in smc_tcp_syn_recv_sock() [1].smc_tcp_syn_recv_sock() is called in the TCP receive path(softirq) via icsk_af_ops->syn_recv_sock on the clcsock (TCPlistening socket). It reads sk_user_data to get the smc_sockpointer. However, when the SMC listen socket is being closedconcurrently, smc_close_active() sets clcsock->sk_user_datato NULL under sk_callback_lock, and then the smc_sock itselfcan be freed via sock_put() in smc_release().This leads to two issues:1) NULL pointer dereference: sk_user_data is NULL when accessed.2) Use-after-free: sk_user_data is read as non-NULL, but the smc_sock is freed before its fields (e.g., queued_smc_hs, ori_af_ops) are accessed.The race window looks like this (the syzkaller crash [1]triggers via the SYN cookie path: tcp_get_cookie_sock() ->smc_tcp_syn_recv_sock(), but the normal tcp_check_req() pathhas the same race): CPU A (softirq) CPU B (process ctx) tcp_v4_rcv() TCP_NEW_SYN_RECV: sk = req->rsk_listener sock_hold(sk) /* No lock on listener */ smc_close_active(): write_lock_bh(cb_lock) sk_user_data = NULL write_unlock_bh(cb_lock) ... smc_clcsock_release() sock_put(smc->sk) x2 -> smc_sock freed! tcp_check_req() smc_tcp_syn_recv_sock(): smc = user_data(sk) -> NULL or dangling smc->queued_smc_hs -> crash!Note that the clcsock and smc_sock are two independent objectswith separate refcounts. TCP stack holds a reference on theclcsock, which keeps it alive, but this does NOT prevent thesmc_sock from being freed.Fix this by using RCU and refcount_inc_not_zero() to safelyaccess smc_sock. Since smc_tcp_syn_recv_sock() is called inthe TCP three-way handshake path, taking read_lock_bh onsk_callback_lock is too heavy and would not survive a SYNflood attack. Using rcu_read_lock() is much more lightweight.- Set SOCK_RCU_FREE on the SMC listen socket so that smc_sock freeing is deferred until after the RCU grace period. This guarantees the memory is still valid when accessed inside rcu_read_lock().- Use rcu_read_lock() to protect reading sk_user_data.- Use refcount_inc_not_zero(&smc->sk.sk_refcnt) to pin the smc_sock. If the refcount has already reached zero (close path completed), it returns false and we bail out safely.Note: smc_hs_congested() has a similar lockless read ofsk_user_data without rcu_read_lock(), but it only checks forNULL and accesses the global smc_hs_wq, never dereferencingany smc_sock field, so it is not affected.Reproducer was verified with mdelay injection and smc_run,the issue no longer occurs with this patch applied.[1] https://syzkaller.appspot.com/bug?extid=827ae2bfb3a3529333e9
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:netfilter: ctnetlink: fix use-after-free in ctnetlink_dump_exp_ct()ctnetlink_dump_exp_ct() stores a conntrack pointer in cb->data for thenetlink dump callback ctnetlink_exp_ct_dump_table(), but drops theconntrack reference immediately after netlink_dump_start(). When thedump spans multiple rounds, the second recvmsg() triggers the dumpcallback which dereferences the now-freed conntrack via nfct_help(ct),leading to a use-after-free on ct->ext.The bug is that the netlink_dump_control has no .start or .donecallbacks to manage the conntrack reference across dump rounds. Otherdump functions in the same file (e.g. ctnetlink_get_conntrack) properlyuse .start/.done callbacks for this purpose.Fix this by adding .start and .done callbacks that hold and release theconntrack reference for the duration of the dump, and move thenfct_help() call after the cb->args[0] early-return check in the dumpcallback to avoid dereferencing ct->ext unnecessarily. BUG: KASAN: slab-use-after-free in ctnetlink_exp_ct_dump_table+0x4f/0x2e0 Read of size 8 at addr ffff88810597ebf0 by task ctnetlink_poc/133 CPU: 1 UID: 0 PID: 133 Comm: ctnetlink_poc Not tainted 7.0.0-rc2+ #3 PREEMPTLAZY Call Trace: ctnetlink_exp_ct_dump_table+0x4f/0x2e0 netlink_dump+0x333/0x880 netlink_recvmsg+0x3e2/0x4b0 ? aa_sk_perm+0x184/0x450 sock_recvmsg+0xde/0xf0 Allocated by task 133: kmem_cache_alloc_noprof+0x134/0x440 __nf_conntrack_alloc+0xa8/0x2b0 ctnetlink_create_conntrack+0xa1/0x900 ctnetlink_new_conntrack+0x3cf/0x7d0 nfnetlink_rcv_msg+0x48e/0x510 netlink_rcv_skb+0xc9/0x1f0 nfnetlink_rcv+0xdb/0x220 netlink_unicast+0x3ec/0x590 netlink_sendmsg+0x397/0x690 __sys_sendmsg+0xf4/0x180 Freed by task 0: slab_free_after_rcu_debug+0xad/0x1e0 rcu_core+0x5c3/0x9c0
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:NFSD: Hold net reference for the lifetime of /proc/fs/nfs/exports fdThe /proc/fs/nfs/exports proc entry is created at module initand persists for the module's lifetime. exports_proc_open()captures the caller's current network namespace and storesits svc_export_cache in seq->private, but takes no referenceon the namespace. If the namespace is subsequently torn down(e.g. container destruction after the opener does setns() to adifferent namespace), nfsd_net_exit() calls nfsd_export_shutdown()which frees the cache. Subsequent reads on the still-open fddereference the freed cache_detail, walking a freed hash table.Hold a reference on the struct net for the lifetime of the openfile descriptor. This prevents nfsd_net_exit() from running --and thus prevents nfsd_export_shutdown() from freeing the cache-- while any exports fd is open. cache_detail already storesits net pointer (cd->net, set by cache_create_net()), soexports_release() can retrieve it without additional per-filestorage.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:net: bonding: fix use-after-free in bond_xmit_broadcast()bond_xmit_broadcast() reuses the original skb for the last slave(determined by bond_is_last_slave()) and clones it for others.Concurrent slave enslave/release can mutate the slave list duringRCU-protected iteration, changing which slave is "last" mid-loop.This causes the original skb to be double-consumed (double-freed).Replace the racy bond_is_last_slave() check with a simple indexcomparison (i + 1 == slaves_count) against the pre-snapshot slavecount taken via READ_ONCE() before the loop. This preserves thezero-copy optimization for the last slave while making the "last"determination stable against concurrent list mutations.The UAF can trigger the following crash:==================================================================BUG: KASAN: slab-use-after-free in skb_cloneRead of size 8 at addr ffff888100ef8d40 by task exploit/147CPU: 1 UID: 0 PID: 147 Comm: exploit Not tainted 7.0.0-rc3+ #4 PREEMPTLAZYCall Trace: dump_stack_lvl (lib/dump_stack.c:123) print_report (mm/kasan/report.c:379 mm/kasan/report.c:482) kasan_report (mm/kasan/report.c:597) skb_clone (include/linux/skbuff.h:1724 include/linux/skbuff.h:1792 include/linux/skbuff.h:3396 net/core/skbuff.c:2108) bond_xmit_broadcast (drivers/net/bonding/bond_main.c:5334) bond_start_xmit (drivers/net/bonding/bond_main.c:5567 drivers/net/bonding/bond_main.c:5593) dev_hard_start_xmit (include/linux/netdevice.h:5325 include/linux/netdevice.h:5334 net/core/dev.c:3871 net/core/dev.c:3887) __dev_queue_xmit (include/linux/netdevice.h:3601 net/core/dev.c:4838) ip6_finish_output2 (include/net/neighbour.h:540 include/net/neighbour.h:554 net/ipv6/ip6_output.c:136) ip6_finish_output (net/ipv6/ip6_output.c:208 net/ipv6/ip6_output.c:219) ip6_output (net/ipv6/ip6_output.c:250) ip6_send_skb (net/ipv6/ip6_output.c:1985) udp_v6_send_skb (net/ipv6/udp.c:1442) udpv6_sendmsg (net/ipv6/udp.c:1733) __sys_sendto (net/socket.c:730 net/socket.c:742 net/socket.c:2206) __x64_sys_sendto (net/socket.c:2209) do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) Allocated by task 147:Freed by task 147:The buggy address belongs to the object at ffff888100ef8c80 which belongs to the cache skbuff_head_cache of size 224The buggy address is located 192 bytes inside of freed 224-byte region [ffff888100ef8c80, ffff888100ef8d60)Memory state around the buggy address: ffff888100ef8c00: fb fb fb fb fc fc fc fc fc fc fc fc fc fc fc fc ffff888100ef8c80: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb>ffff888100ef8d00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ^ ffff888100ef8d80: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb ffff888100ef8e00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb==================================================================
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:virt: tdx-guest: Fix handling of host controlled 'quote' buffer lengthValidate host controlled value `quote_buf->out_len` that determines howmany bytes of the quote are copied out to guest userspace. In TDXenvironments with remote attestation, quotes are not considered private,and can be forwarded to an attestation server.Catch scenarios where the host specifies a response length larger thanthe guest's allocation, or otherwise races modifying the response whilethe guest consumes it.This prevents contents beyond the pages allocated for `quote_buf`(up to TSM_REPORT_OUTBLOB_MAX) from being read out to guest userspace,and possibly forwarded in attestation requests.Recall that some deployments want per-container configs-tsm-reportinterfaces, so the leak may cross container protection boundaries, notjust local root.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:Bluetooth: btintel: serialize btintel_hw_error() with hci_req_sync_lockbtintel_hw_error() issues two __hci_cmd_sync() calls (HCI_OP_RESETand Intel exception-info retrieval) without holdinghci_req_sync_lock(). This lets it race againsthci_dev_do_close() -> btintel_shutdown_combined(), which also runs__hci_cmd_sync() under the same lock. When both paths manipulatehdev->req_status/req_rsp concurrently, the close path may free theresponse skb first, and the still-running hw_error path hits aslab-use-after-free in kfree_skb().Wrap the whole recovery sequence in hci_req_sync_lock/unlock so itis serialized with every other synchronous HCI command issuer.Below is the data race report and the kasan report: BUG: data-race in __hci_cmd_sync_sk / btintel_shutdown_combined read of hdev->req_rsp at net/bluetooth/hci_sync.c:199 by task kworker/u17:1/83: __hci_cmd_sync_sk+0x12f2/0x1c30 net/bluetooth/hci_sync.c:200 __hci_cmd_sync+0x55/0x80 net/bluetooth/hci_sync.c:223 btintel_hw_error+0x114/0x670 drivers/bluetooth/btintel.c:254 hci_error_reset+0x348/0xa30 net/bluetooth/hci_core.c:1030 write/free by task ioctl/22580: btintel_shutdown_combined+0xd0/0x360 drivers/bluetooth/btintel.c:3648 hci_dev_close_sync+0x9ae/0x2c10 net/bluetooth/hci_sync.c:5246 hci_dev_do_close+0x232/0x460 net/bluetooth/hci_core.c:526 BUG: KASAN: slab-use-after-free in sk_skb_reason_drop+0x43/0x380 net/core/skbuff.c:1202 Read of size 4 at addr ffff888144a738dc by task kworker/u17:1/83: __hci_cmd_sync_sk+0x12f2/0x1c30 net/bluetooth/hci_sync.c:200 __hci_cmd_sync+0x55/0x80 net/bluetooth/hci_sync.c:223 btintel_hw_error+0x186/0x670 drivers/bluetooth/btintel.c:260
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:net: fix fanout UAF in packet_release() via NETDEV_UP race`packet_release()` has a race window where `NETDEV_UP` can re-register asocket into a fanout group's `arr[]` array. The re-registration is notcleaned up by `fanout_release()`, leaving a dangling pointer in the fanoutarray.`packet_release()` does NOT zero `po->num` in its `bind_lock` section.After releasing `bind_lock`, `po->num` is still non-zero and `po->ifindex`still matches the bound device. A concurrent `packet_notifier(NETDEV_UP)`that already found the socket in `sklist` can re-register the hook.For fanout sockets, this re-registration calls `__fanout_link(sk, po)`which adds the socket back into `f->arr[]` and increments `f->num_members`,but does NOT increment `f->sk_ref`.The fix sets `po->num` to zero in `packet_release` while `bind_lock` isheld to prevent NETDEV_UP from linking, preventing the race window.This bug was found following an additional audit with Claude Code basedon CVE-2025-38617.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:iavf: fix out-of-bounds writes in iavf_get_ethtool_stats()iavf incorrectly uses real_num_tx_queues for ETH_SS_STATS. Since thevalue could change in runtime, we should use num_tx_queues instead.Moreover iavf_get_ethtool_stats() uses num_active_queues whileiavf_get_sset_count() and iavf_get_stat_strings() usereal_num_tx_queues, which triggers out-of-bounds writes when we do"ethtool -L" and "ethtool -S" simultaneously [1].For example when we change channels from 1 to 8, Thread 3 could bescheduled before Thread 2, and out-of-bounds writes could be triggeredin Thread 3:Thread 1 (ethtool -L) Thread 2 (work) Thread 3 (ethtool -S)iavf_set_channels()...iavf_alloc_queues()-> num_active_queues = 8iavf_schedule_finish_config() iavf_get_sset_count() real_num_tx_queues: 1 -> buffer for 1 queue iavf_get_ethtool_stats() num_active_queues: 8 -> out-of-bounds! iavf_finish_config() -> real_num_tx_queues = 8Use immutable num_tx_queues in all related functions to avoid the issue.[1] BUG: KASAN: vmalloc-out-of-bounds in iavf_add_one_ethtool_stat+0x200/0x270 Write of size 8 at addr ffffc900031c9080 by task ethtool/5800 CPU: 1 UID: 0 PID: 5800 Comm: ethtool Not tainted 6.19.0-enjuk-08403-g8137e3db7f1c #241 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Call Trace: dump_stack_lvl+0x6f/0xb0 print_report+0x170/0x4f3 kasan_report+0xe1/0x180 iavf_add_one_ethtool_stat+0x200/0x270 iavf_get_ethtool_stats+0x14c/0x2e0 __dev_ethtool+0x3d0c/0x5830 dev_ethtool+0x12d/0x270 dev_ioctl+0x53c/0xe30 sock_do_ioctl+0x1a9/0x270 sock_ioctl+0x3d4/0x5e0 __x64_sys_ioctl+0x137/0x1c0 do_syscall_64+0xf3/0x690 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f7da0e6e36d ... The buggy address belongs to a 1-page vmalloc region starting at 0xffffc900031c9000 allocated at __dev_ethtool+0x3cc9/0x5830 The buggy address belongs to the physical page: page: refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88813a013de0 pfn:0x13a013 flags: 0x200000000000000(node=0|zone=2) raw: 0200000000000000 0000000000000000 dead000000000122 0000000000000000 raw: ffff88813a013de0 0000000000000000 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffffc900031c8f80: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ffffc900031c9000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffffc900031c9080: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ^ ffffc900031c9100: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ffffc900031c9180: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:bpf: Fix undefined behavior in interpreter sdiv/smod for INT_MINThe BPF interpreter's signed 32-bit division and modulo handlers usethe kernel abs() macro on s32 operands. The abs() macro documentation(include/linux/math.h) explicitly states the result is undefined whenthe input is the type minimum. When DST contains S32_MIN (0x80000000),abs((s32)DST) triggers undefined behavior and returns S32_MIN unchangedon arm64/x86. This value is then sign-extended to u64 as0xFFFFFFFF80000000, causing do_div() to compute the wrong result.The verifier's abstract interpretation (scalar32_min_max_sdiv) computesthe mathematically correct result for range tracking, creating averifier/interpreter mismatch that can be exploited for out-of-boundsmap value access.Introduce abs_s32() which handles S32_MIN correctly by casting to u32before negating, avoiding signed overflow entirely. Replace all 8abs((s32)...) call sites in the interpreter's sdiv32/smod32 handlers.s32 is the only affected case -- the s64 division/modulo handlers donot use abs().
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:perf: Make sure to use pmu_ctx->pmu for groupsOliver reported that x86_pmu_del() ended up doing an out-of-bound memory accesswhen group_sched_in() fails and needs to roll back.This *should* be handled by the transaction callbacks, but he found that whenthe group leader is a software event, the transaction handlers of the wrong PMUare used. Despite the move_group case in perf_event_open() and group_sched_in()using pmu_ctx->pmu.Turns out, inherit uses event->pmu to clone the events, effectively undoing themove_group case for all inherited contexts. Fix this by also making inherit usepmu_ctx->pmu, ensuring all inherited counters end up in the same pmu context.Similarly, __perf_event_read() should use equally use pmu_ctx->pmu for thegroup case.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:net/tls: fix use-after-free in -EBUSY error path of tls_do_encryptionThe -EBUSY handling in tls_do_encryption(), introduced by commit859054147318 ("net: tls: handle backlogging of crypto requests"), hasa use-after-free due to double cleanup of encrypt_pending and thescatterlist entry.When crypto_aead_encrypt() returns -EBUSY, the request is enqueued tothe cryptd backlog and the async callback tls_encrypt_done() will beinvoked upon completion. That callback unconditionally restores thescatterlist entry (sge->offset, sge->length) and decrementsctx->encrypt_pending. However, if tls_encrypt_async_wait() returns anerror, the synchronous error path in tls_do_encryption() performs thesame cleanup again, double-decrementing encrypt_pending anddouble-restoring the scatterlist.The double-decrement corrupts the encrypt_pending sentinel (initializedto 1), making tls_encrypt_async_wait() permanently skip the wait forpending async callbacks. A subsequent sendmsg can then free thetls_rec via bpf_exec_tx_verdict() while a cryptd callback is stillpending, resulting in a use-after-free when the callback fires on thefreed record.Fix this by skipping the synchronous cleanup when the -EBUSY asyncwait returns an error, since the callback has already handledencrypt_pending and sge restoration.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:smb: client: make use of smbdirect_socket.recv_io.credits.availableThe logic off managing recv credits by counting posted recv_io andgranted credits is racy.That's because the peer might already consumed a credit,but between receiving the incoming recv at the hardwareand processing the completion in the 'recv_done' functionswe likely have a window where we grant credits, whichdon't really exist.So we better have a decicated counter for theavailable credits, which will be incrementedwhen we posted new recv buffers and drained whenwe grant the credits to the peer.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:futex: Clear stale exiting pointer in futex_lock_pi() retry pathFuzzying/stressing futexes triggered: WARNING: kernel/futex/core.c:825 at wait_for_owner_exiting+0x7a/0x80, CPU#11: futex_lock_pi_s/524When futex_lock_pi_atomic() sees the owner is exiting, it returns -EBUSYand stores a refcounted task pointer in 'exiting'.After wait_for_owner_exiting() consumes that reference, the local pointeris never reset to nil. Upon a retry, if futex_lock_pi_atomic() returns adifferent error, the bogus pointer is passed to wait_for_owner_exiting(). CPU0 CPU1 CPU2 futex_lock_pi(uaddr) // acquires the PI futex exit() futex_cleanup_begin() futex_state = EXITING; futex_lock_pi(uaddr) futex_lock_pi_atomic() attach_to_pi_owner() // observes EXITING *exiting = owner; // takes ref return -EBUSY wait_for_owner_exiting(-EBUSY, owner) put_task_struct(); // drops ref // exiting still points to owner goto retry; futex_lock_pi_atomic() lock_pi_update_atomic() cmpxchg(uaddr) *uaddr ^= WAITERS // whatever // value changed return -EAGAIN; wait_for_owner_exiting(-EAGAIN, exiting) // stale WARN_ON_ONCE(exiting)Fix this by resetting upon retry, essentially aligning it with requeue_pi.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:ALSA: 6fire: fix use-after-free on disconnectIn usb6fire_chip_abort(), the chip struct is allocated as the card'sprivate data (via snd_card_new with sizeof(struct sfire_chip)). Whensnd_card_free_when_closed() is called and no file handles are open, thecard and embedded chip are freed synchronously. The subsequentchip->card = NULL write then hits freed slab memory.Call trace: usb6fire_chip_abort sound/usb/6fire/chip.c:59 [inline] usb6fire_chip_disconnect+0x348/0x358 sound/usb/6fire/chip.c:182 usb_unbind_interface+0x1a8/0x88c drivers/usb/core/driver.c:458 ... hub_event+0x1a04/0x4518 drivers/usb/core/hub.c:5953Fix by moving the card lifecycle out of usb6fire_chip_abort() and intousb6fire_chip_disconnect(). The card pointer is saved in a localbefore any teardown, snd_card_disconnect() is called first to preventnew opens, URBs are aborted while chip is still valid, andsnd_card_free_when_closed() is called last so chip is never accessedafter the card may be freed.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:media: em28xx: fix use-after-free in em28xx_v4l2_open()em28xx_v4l2_open() reads dev->v4l2 without holding dev->lock,creating a race with em28xx_v4l2_init()'s error path andem28xx_v4l2_fini(), both of which free the em28xx_v4l2 structand set dev->v4l2 to NULL under dev->lock.This race leads to two issues: - use-after-free in v4l2_fh_init() when accessing vdev->ctrl_handler, since the video_device is embedded in the freed em28xx_v4l2 struct. - NULL pointer dereference in em28xx_resolution_set() when accessing v4l2->norm, since dev->v4l2 has been set to NULL.Fix this by moving the mutex_lock() before the dev->v4l2 read andadding a NULL check for dev->v4l2 under the lock.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:mm: blk-cgroup: fix use-after-free in cgwb_release_workfn()cgwb_release_workfn() calls css_put(wb->blkcg_css) and then later accesseswb->blkcg_css again via blkcg_unpin_online(). If css_put() drops the lastreference, the blkcg can be freed asynchronously (css_free_rwork_fn ->blkcg_css_free -> kfree) before blkcg_unpin_online() dereferences thepointer to access blkcg->online_pin, resulting in a use-after-free: BUG: KASAN: slab-use-after-free in blkcg_unpin_online (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/refcount.h:450 block/blk-cgroup.c:1367) Write of size 4 at addr ff11000117aa6160 by task kworker/71:1/531 Workqueue: cgwb_release cgwb_release_workfn Call Trace: blkcg_unpin_online (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/refcount.h:450 block/blk-cgroup.c:1367) cgwb_release_workfn (mm/backing-dev.c:629) process_scheduled_works (kernel/workqueue.c:3278 kernel/workqueue.c:3385) Freed by task 1016: kfree (./include/linux/kasan.h:235 mm/slub.c:2689 mm/slub.c:6246 mm/slub.c:6561) css_free_rwork_fn (kernel/cgroup/cgroup.c:5542) process_scheduled_works (kernel/workqueue.c:3302 kernel/workqueue.c:3385)** Stack based on commit 66672af7a095 ("Add linux-next specific filesfor 20260410")I am seeing this crash sporadically in Meta fleet across multiple kernelversions. A full reproducer is available at:https://github.com/leitao/debug/blob/main/reproducers/repro_blkcg_uaf.sh(The race window is narrow. To make it easily reproducible, inject amsleep(100) between css_put() and blkcg_unpin_online() incgwb_release_workfn(). With that delay and a KASAN-enabled kernel, thereproducer triggers the splat reliably in less than a second.)Fix this by moving blkcg_unpin_online() before css_put(), so thecgwb's CSS reference keeps the blkcg alive while blkcg_unpin_online()accesses it.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:KVM: x86: Use scratch field in MMIO fragment to hold small write valuesWhen exiting to userspace to service an emulated MMIO write, copy theto-be-written value to a scratch field in the MMIO fragment if the sizeof the data payload is 8 bytes or less, i.e. can fit in a single chunk,instead of pointing the fragment directly at the source value.This fixes a class of use-after-free bugs that occur when the emulatorinitiates a write using an on-stack, local variable as the source, thewrite splits a page boundary, *and* both pages are MMIO pages. BecauseKVM's ABI only allows for physically contiguous MMIO requests, accessesthat split MMIO pages are separated into two fragments, and are sent touserspace one at a time. When KVM attempts to complete userspace MMIO inresponse to KVM_RUN after the first fragment, KVM will detect the secondfragment and generate a second userspace exit, and reference the on-stackvariable.The issue is most visible if the second KVM_RUN is performed by a separatetask, in which case the stack of the initiating task can show up as trulyfreed data. ================================================================== BUG: KASAN: use-after-free in complete_emulated_mmio+0x305/0x420 Read of size 1 at addr ffff888009c378d1 by task syz-executor417/984 CPU: 1 PID: 984 Comm: syz-executor417 Not tainted 5.10.0-182.0.0.95.h2627.eulerosv2r13.x86_64 #3 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.15.0-0-g2dd4b9b3f840-prebuilt.qemu.org 04/01/2014 Call Trace: dump_stack+0xbe/0xfd print_address_description.constprop.0+0x19/0x170 __kasan_report.cold+0x6c/0x84 kasan_report+0x3a/0x50 check_memory_region+0xfd/0x1f0 memcpy+0x20/0x60 complete_emulated_mmio+0x305/0x420 kvm_arch_vcpu_ioctl_run+0x63f/0x6d0 kvm_vcpu_ioctl+0x413/0xb20 __se_sys_ioctl+0x111/0x160 do_syscall_64+0x30/0x40 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x42477d Code: <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007faa8e6890e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00000000004d7338 RCX: 000000000042477d RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005 RBP: 00000000004d7330 R08: 00007fff28d546df R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004d733c R13: 0000000000000000 R14: 000000000040a200 R15: 00007fff28d54720 The buggy address belongs to the page: page:0000000029f6a428 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x9c37 flags: 0xfffffc0000000(node=0|zone=1|lastcpupid=0x1fffff) raw: 000fffffc0000000 0000000000000000 ffffea0000270dc8 0000000000000000 raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff888009c37780: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff888009c37800: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff >ffff888009c37880: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ^ ffff888009c37900: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff888009c37980: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ==================================================================The bug can also be reproduced with a targeted KVM-Unit-Test by hackingKVM to fill a large on-stack variable in complete_emulated_mmio(), i.e. byoverwrite the data value with garbage.Limit the use of the scratch fields to 8-byte or smaller accesses, and tojust writes, as larger accesses and reads are not affected thanks toimplementation details in the emulator, but add a sanity check to ensurethose details don't change in the future. Specifically, KVM never useson-stack variables for accesses larger that 8 bytes, e.g. uses an operandin the emulator context, and *al---truncated---
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:mptcp: fix slab-use-after-free in __inet_lookup_establishedThe ehash table lookups are lockless and rely onSLAB_TYPESAFE_BY_RCU to guarantee socket memory stabilityduring RCU read-side critical sections. Both tcp_prot andtcpv6_prot have their slab caches created with this flagvia proto_register().However, MPTCP's mptcp_subflow_init() copies tcpv6_prot intotcpv6_prot_override during inet_init() (fs_initcall, level 5),before inet6_init() (module_init/device_initcall, level 6) hascalled proto_register(&tcpv6_prot). At that point,tcpv6_prot.slab is still NULL, so tcpv6_prot_override.slabremains NULL permanently.This causes MPTCP v6 subflow child sockets to be allocated viakmalloc (falling into kmalloc-4k) instead of the TCPv6 slabcache. The kmalloc-4k cache lacks SLAB_TYPESAFE_BY_RCU, sowhen these sockets are freed without SOCK_RCU_FREE (which iscleared for child sockets by design), the memory can beimmediately reused. Concurrent ehash lookups underrcu_read_lock can then access freed memory, triggering aslab-use-after-free in __inet_lookup_established.Fix this by splitting the IPv6-specific initialization out ofmptcp_subflow_init() into a new mptcp_subflow_v6_init(), calledfrom mptcp_proto_v6_init() before protocol registration. Thisensures tcpv6_prot_override.slab correctly inherits theSLAB_TYPESAFE_BY_RCU slab cache.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: The webbrowser.open() API would accept leading dashes in the URL which could be handled as command line options for certain web browsers. New behavior rejects leading dashes. Users are recommended to sanitize URLs prior to passing to webbrowser.open().
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- python3 > 0-0 (version in image is 3.6.15-150300.10.109.1).
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Description: When sed is invoked with both -i (in-place edit) and --follow-symlinks, the function open_next_file() performs two separate, non-atomic filesystem operations on the same path: 1. resolves symlink to its target and stores the resolved path for determining when output is written,2. opens the original symlink path (not the resolved one) to read the file. Between these two calls there is a race window. If an attacker atomically replaces the symlink with a different target during that window, sed will: read content from the new (attacker-chosen) symlink target and write the processed result to the path recorded in step 1. This can lead to arbitrary file overwrite with attacker-controlled content in the context of the sed process.This issue was fixed in version 4.10.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- sed > 0-0 (version in image is 4.9-150600.1.4).
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Description: In the Linux kernel, the following vulnerability has been resolved:ksmbd: validate EaNameLength in smb2_get_ea()smb2_get_ea() reads ea_req->EaNameLength from the client request andpasses it directly to strncmp() as the comparison length withoutverifying that the length of the name really is the size of the inputbuffer received.Fix this up by properly checking the size of the name based on the valuereceived and the overall size of the request, to prevent a laterstrncmp() call to use the length as a "trusted" size of the buffer.Without this check, uninitialized heap values might be slowly leaked tothe client.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:nfsd: provide locking for v4_end_graceWriting to v4_end_grace can race with server shutdown and result inmemory being accessed after it was freed - reclaim_str_hashtbl inparticularly.We cannot hold nfsd_mutex across the nfsd4_end_grace() call as that isheld while client_tracking_op->init() is called and that can wait foran upcall to nfsdcltrack which can write to v4_end_grace, resulting in adeadlock.nfsd4_end_grace() is also called by the landromat work queue and thisdoesn't require locking as server shutdown will stop the work and waitfor it before freeing anything that nfsd4_end_grace() might access.However, we must be sure that writing to v4_end_grace doesn't restartthe work item after shutdown has already waited for it. For this weadd a new flag protected with nn->client_lock. It is set only while itis safe to make client tracking calls, and v4_end_grace only scheduleswork while the flag is set with the spinlock held.So this patch adds a nfsd_net field "client_tracking_active" which isset as described. Another field "grace_end_forced", is set whenv4_end_grace is written. After this is set, and providingclient_tracking_active is set, the laundromat is scheduled.This "grace_end_forced" field bypasses other checks for whether thegrace period has finished.This resolves a race which can result in use-after-free.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:i2c: s3c24xx: check the size of the SMBUS message before using itThe first byte of an i2c SMBUS message is the size, and it should beverified to ensure that it is in the range of 0..I2C_SMBUS_BLOCK_MAXbefore processing it.This is the same logic that was added in commit a6e04f05ce0b ("i2c:tegra: check msg length in SMBUS block read") to the i2c tegra driver.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:openvswitch: validate MPLS set/set_masked payload lengthvalidate_set() accepted OVS_KEY_ATTR_MPLS as variable-sized payload forSET/SET_MASKED actions. In action handling, OVS expects fixed-sizeMPLS key data (struct ovs_key_mpls).Use the already normalized key_len (masked case included) and rejectnon-matching MPLS action key sizes.Reject invalid MPLS action payload lengths early.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:mm/kasan: fix double free for kasan pXdskasan_free_pxd() assumes the page table is always struct page aligned. But that's not always the case for all architectures. E.g. In case ofpowerpc with 64K pagesize, PUD table (of size 4096) comes from slab cachenamed pgtable-2^9. Hence instead of page_to_virt(pxd_page()) let's justdirectly pass the start of the pxd table which is passed as the 1stargument.This fixes the below double free kasan issue seen with PMEM:radix-mmu: Mapped 0x0000047d10000000-0x0000047f90000000 with 2.00 MiB pages==================================================================BUG: KASAN: double-free in kasan_remove_zero_shadow+0x9c4/0xa20Free of addr c0000003c38e0000 by task ndctl/2164CPU: 34 UID: 0 PID: 2164 Comm: ndctl Not tainted 6.19.0-rc1-00048-gea1013c15392 #157 VOLUNTARYHardware name: IBM,9080-HEX POWER10 (architected) 0x800200 0xf000006 of:IBM,FW1060.00 (NH1060_012) hv:phyp pSeriesCall Trace: dump_stack_lvl+0x88/0xc4 (unreliable) print_report+0x214/0x63c kasan_report_invalid_free+0xe4/0x110 check_slab_allocation+0x100/0x150 kmem_cache_free+0x128/0x6e0 kasan_remove_zero_shadow+0x9c4/0xa20 memunmap_pages+0x2b8/0x5c0 devm_action_release+0x54/0x70 release_nodes+0xc8/0x1a0 devres_release_all+0xe0/0x140 device_unbind_cleanup+0x30/0x120 device_release_driver_internal+0x3e4/0x450 unbind_store+0xfc/0x110 drv_attr_store+0x78/0xb0 sysfs_kf_write+0x114/0x140 kernfs_fop_write_iter+0x264/0x3f0 vfs_write+0x3bc/0x7d0 ksys_write+0xa4/0x190 system_call_exception+0x190/0x480 system_call_vectored_common+0x15c/0x2ec---- interrupt: 3000 at 0x7fff93b3d3f4NIP: 00007fff93b3d3f4 LR: 00007fff93b3d3f4 CTR: 0000000000000000REGS: c0000003f1b07e80 TRAP: 3000 Not tainted (6.19.0-rc1-00048-gea1013c15392)MSR: 800000000280f033 CR: 48888208 XER: 00000000<...>NIP [00007fff93b3d3f4] 0x7fff93b3d3f4LR [00007fff93b3d3f4] 0x7fff93b3d3f4---- interrupt: 3000 The buggy address belongs to the object at c0000003c38e0000 which belongs to the cache pgtable-2^9 of size 4096 The buggy address is located 0 bytes inside of 4096-byte region [c0000003c38e0000, c0000003c38e1000) The buggy address belongs to the physical page: page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x3c38c head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 memcg:c0000003bfd63e01 flags: 0x63ffff800000040(head|node=6|zone=0|lastcpupid=0x7ffff) page_type: f5(slab) raw: 063ffff800000040 c000000140058980 5deadbeef0000122 0000000000000000 raw: 0000000000000000 0000000080200020 00000000f5000000 c0000003bfd63e01 head: 063ffff800000040 c000000140058980 5deadbeef0000122 0000000000000000 head: 0000000000000000 0000000080200020 00000000f5000000 c0000003bfd63e01 head: 063ffff800000002 c00c000000f0e301 00000000ffffffff 00000000ffffffff head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 page dumped because: kasan: bad access detected[ 138.953636] [ T2164] Memory state around the buggy address:[ 138.953643] [ T2164] c0000003c38dff00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc[ 138.953652] [ T2164] c0000003c38dff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc[ 138.953661] [ T2164] >c0000003c38e0000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc[ 138.953669] [ T2164] ^[ 138.953675] [ T2164] c0000003c38e0080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc[ 138.953684] [ T2164] c0000003c38e0100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc[ 138.953692] [ T2164] ==================================================================[ 138.953701] [ T2164] Disabling lock debugging due to kernel taint
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:Buffer overflow in drivers/xen/sys-hypervisor.cThe build id returned by HYPERVISOR_xen_version(XENVER_build_id) isneither NUL terminated nor a string.The first causes a buffer overflow as sprintf in buildid_show willread and copy till it finds a NUL.00000000 f4 91 51 f4 dd 38 9e 9d 65 47 52 eb 10 71 db 50 |..Q..8..eGR..q.P|00000010 b9 a8 01 42 6f 2e 32 |...Bo.2|00000017So use a memcpy instead of sprintf to have the correct value:00000000 f4 91 51 f4 dd 00 9e 9d 65 47 52 eb 10 71 db 50 |..Q.....eGR..q.P|00000010 b9 a8 01 42 |...B|00000014(the above have a hack to embed a zero inside and check it'sreturned correctly).This is XSA-485 / CVE-2026-31786
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: Vim is an open source, command line text editor. Prior to 9.2.0357, A command injection vulnerability exists in Vim's tag file processing. When resolving a tag, the filename field from the tags file is passed through wildcard expansion to resolve environment variables and wildcards. If the filename field contains backtick syntax (e.g., `command`), Vim executes the embedded command via the system shell with the full privileges of the running user.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- vim > 0-0 (version in image is 9.2.0280-150500.20.46.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:can: kvaser_pciefd: refine error prone echo_skb_max handling logicecho_skb_max should define the supported upper limit of echo_skb[]allocated inside the netdevice's priv. The corresponding size valueprovided by this driver to alloc_candev() is KVASER_PCIEFD_CAN_TX_MAX_COUNTwhich is 17.But later echo_skb_max is rounded up to the nearest power of two (for themax case, that would be 32) and the tx/ack indices calculated furtherduring tx/rx may exceed the upper array boundary. Kasan reported this forthe ack case inside kvaser_pciefd_handle_ack_packet(), though the xmitfunction has actually caught the same thing earlier. BUG: KASAN: slab-out-of-bounds in kvaser_pciefd_handle_ack_packet+0x2d7/0x92a drivers/net/can/kvaser_pciefd.c:1528 Read of size 8 at addr ffff888105e4f078 by task swapper/4/0 CPU: 4 UID: 0 PID: 0 Comm: swapper/4 Not tainted 6.15.0 #12 PREEMPT(voluntary) Call Trace: dump_stack_lvl lib/dump_stack.c:122 print_report mm/kasan/report.c:521 kasan_report mm/kasan/report.c:634 kvaser_pciefd_handle_ack_packet drivers/net/can/kvaser_pciefd.c:1528 kvaser_pciefd_read_packet drivers/net/can/kvaser_pciefd.c:1605 kvaser_pciefd_read_buffer drivers/net/can/kvaser_pciefd.c:1656 kvaser_pciefd_receive_irq drivers/net/can/kvaser_pciefd.c:1684 kvaser_pciefd_irq_handler drivers/net/can/kvaser_pciefd.c:1733 __handle_irq_event_percpu kernel/irq/handle.c:158 handle_irq_event kernel/irq/handle.c:210 handle_edge_irq kernel/irq/chip.c:833 __common_interrupt arch/x86/kernel/irq.c:296 common_interrupt arch/x86/kernel/irq.c:286 Tx max count definitely matters for kvaser_pciefd_tx_avail(), but for seqnumbers' generation that's not the case - we're free to calculate them aswould be more convenient, not taking tx max count into account. The onlydownside is that the size of echo_skb[] should correspond to the max seqnumber (not tx max count), so in some situations a bit more memory wouldbe consumed than could be.Thus make the size of the underlying echo_skb[] sufficient for the roundedmax tx value.Found by Linux Verification Center (linuxtesting.org) with Syzkaller.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:xfs: fix UAF in xchk_btree_check_block_ownerWe cannot dereference bs->cur when trying to determine if bs->curaliases bs->sc->sa.{bno,rmap}_cur after the latter has been freed.Fix this by sampling before type before any freeing could happen.The correct temporal ordering was broken when we removed xfs_btnum_t.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:net: add xmit recursion limit to tunnel xmit functionsTunnel xmit functions (iptunnel_xmit, ip6tunnel_xmit) lack their ownrecursion limit. When a bond device in broadcast mode has GRE tapinterfaces as slaves, and those GRE tunnels route back through thebond, multicast/broadcast traffic triggers infinite recursion betweenbond_xmit_broadcast() and ip_tunnel_xmit()/ip6_tnl_xmit(), causingkernel stack overflow.The existing XMIT_RECURSION_LIMIT (8) in the no-qdisc path is notsufficient because tunnel recursion involves route lookups and full IPoutput, consuming much more stack per level. Use a lower limit of 4(IP_TUNNEL_RECURSION_LIMIT) to prevent overflow.Add recursion detection using dev_xmit_recursion helpers directly iniptunnel_xmit() and ip6tunnel_xmit() to cover all IPv4/IPv6 tunnelpaths including UDP encapsulated tunnels (VXLAN, Geneve, etc.).Move dev_xmit_recursion helpers from net/core/dev.h to public headerinclude/linux/netdevice.h so they can be used by tunnel code. BUG: KASAN: stack-out-of-bounds in blake2s.constprop.0+0xe7/0x160 Write of size 32 at addr ffff88810033fed0 by task kworker/0:1/11 Workqueue: mld mld_ifc_work Call Trace: __build_flow_key.constprop.0 (net/ipv4/route.c:515) ip_rt_update_pmtu (net/ipv4/route.c:1073) iptunnel_xmit (net/ipv4/ip_tunnel_core.c:84) ip_tunnel_xmit (net/ipv4/ip_tunnel.c:847) gre_tap_xmit (net/ipv4/ip_gre.c:779) dev_hard_start_xmit (net/core/dev.c:3887) sch_direct_xmit (net/sched/sch_generic.c:347) __dev_queue_xmit (net/core/dev.c:4802) bond_dev_queue_xmit (drivers/net/bonding/bond_main.c:312) bond_xmit_broadcast (drivers/net/bonding/bond_main.c:5279) bond_start_xmit (drivers/net/bonding/bond_main.c:5530) dev_hard_start_xmit (net/core/dev.c:3887) __dev_queue_xmit (net/core/dev.c:4841) ip_finish_output2 (net/ipv4/ip_output.c:237) ip_output (net/ipv4/ip_output.c:438) iptunnel_xmit (net/ipv4/ip_tunnel_core.c:86) gre_tap_xmit (net/ipv4/ip_gre.c:779) dev_hard_start_xmit (net/core/dev.c:3887) sch_direct_xmit (net/sched/sch_generic.c:347) __dev_queue_xmit (net/core/dev.c:4802) bond_dev_queue_xmit (drivers/net/bonding/bond_main.c:312) bond_xmit_broadcast (drivers/net/bonding/bond_main.c:5279) bond_start_xmit (drivers/net/bonding/bond_main.c:5530) dev_hard_start_xmit (net/core/dev.c:3887) __dev_queue_xmit (net/core/dev.c:4841) ip_finish_output2 (net/ipv4/ip_output.c:237) ip_output (net/ipv4/ip_output.c:438) iptunnel_xmit (net/ipv4/ip_tunnel_core.c:86) ip_tunnel_xmit (net/ipv4/ip_tunnel.c:847) gre_tap_xmit (net/ipv4/ip_gre.c:779) dev_hard_start_xmit (net/core/dev.c:3887) sch_direct_xmit (net/sched/sch_generic.c:347) __dev_queue_xmit (net/core/dev.c:4802) bond_dev_queue_xmit (drivers/net/bonding/bond_main.c:312) bond_xmit_broadcast (drivers/net/bonding/bond_main.c:5279) bond_start_xmit (drivers/net/bonding/bond_main.c:5530) dev_hard_start_xmit (net/core/dev.c:3887) __dev_queue_xmit (net/core/dev.c:4841) mld_sendpack mld_ifc_work process_one_work worker_thread
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:Bluetooth: L2CAP: Fix accepting multiple L2CAP_ECRED_CONN_REQCurrently the code attempts to accept requests regardless of thecommand identifier which may cause multiple requests to be markedas pending (FLAG_DEFER_SETUP) which can cause more thanL2CAP_ECRED_MAX_CID(5) to be allocated in l2cap_ecred_rsp_defercausing an overflow.The spec is quite clear that the same identifier shall not be used onsubsequent requests:'Within each signaling channel a different Identifier shall be usedfor each successive request or indication.'https://www.bluetooth.com/wp-content/uploads/Files/Specification/HTML/Core-62/out/en/host/logical-link-control-and-adaptation-protocol-specification.html#UUID-32a25a06-4aa4-c6c7-77c5-dcfe3682355dSo this attempts to check if there are any channels pending with thesame identifier and rejects if any are found.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:wifi: mac80211: fix NULL deref in mesh_matches_local()mesh_matches_local() unconditionally dereferences ie->mesh_config tocompare mesh configuration parameters. When called frommesh_rx_csa_frame(), the parsed action-frame elements may not contain aMesh Configuration IE, leaving ie->mesh_config NULL and triggering akernel NULL pointer dereference.The other two callers are already safe: - ieee80211_mesh_rx_bcn_presp() checks !elems->mesh_config before calling mesh_matches_local() - mesh_plink_get_event() is only reached through mesh_process_plink_frame(), which checks !elems->mesh_config, toomesh_rx_csa_frame() is the only caller that passes raw parsed elementsto mesh_matches_local() without guarding mesh_config. An adjacentattacker can exploit this by sending a crafted CSA action frame thatincludes a valid Mesh ID IE but omits the Mesh Configuration IE,crashing the kernel.The captured crash log:Oops: general protection fault, probably for non-canonical address ...KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]Workqueue: events_unbound cfg80211_wiphy_work[...]Call Trace: ? __pfx_mesh_matches_local (net/mac80211/mesh.c:65) ieee80211_mesh_rx_queued_mgmt (net/mac80211/mesh.c:1686) [...] ieee80211_iface_work (net/mac80211/iface.c:1754 net/mac80211/iface.c:1802) [...] cfg80211_wiphy_work (net/wireless/core.c:426) process_one_work (net/kernel/workqueue.c:3280) ? assign_work (net/kernel/workqueue.c:1219) worker_thread (net/kernel/workqueue.c:3352) ? __pfx_worker_thread (net/kernel/workqueue.c:3385) kthread (net/kernel/kthread.c:436) [...] ret_from_fork_asm (net/arch/x86/entry/entry_64.S:255) This patch adds a NULL check for ie->mesh_config at the top ofmesh_matches_local() to return false early when the Mesh ConfigurationIE is absent.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:KVM: x86/mmu: Drop/zap existing present SPTE even when creating an MMIO SPTEWhen installing an emulated MMIO SPTE, do so *after* dropping/zapping theexisting SPTE (if it's shadow-present). While commit a54aa15c6bda3 wasright about it being impossible to convert a shadow-present SPTE to anMMIO SPTE due to a _guest_ write, it failed to account for writes to guestmemory that are outside the scope of KVM.E.g. if host userspace modifies a shadowed gPTE to switch from a memslotto emulted MMIO and then the guest hits a relevant page fault, KVM willinstall the MMIO SPTE without first zapping the shadow-present SPTE. ------------[ cut here ]------------ is_shadow_present_pte(*sptep) WARNING: arch/x86/kvm/mmu/mmu.c:484 at mark_mmio_spte+0xb2/0xc0 [kvm], CPU#0: vmx_ept_stale_r/4292 Modules linked in: kvm_intel kvm irqbypass CPU: 0 UID: 1000 PID: 4292 Comm: vmx_ept_stale_r Not tainted 7.0.0-rc2-eafebd2d2ab0-sink-vm #319 PREEMPT Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 0.0.0 02/06/2015 RIP: 0010:mark_mmio_spte+0xb2/0xc0 [kvm] Call Trace: mmu_set_spte+0x237/0x440 [kvm] ept_page_fault+0x535/0x7f0 [kvm] kvm_mmu_do_page_fault+0xee/0x1f0 [kvm] kvm_mmu_page_fault+0x8d/0x620 [kvm] vmx_handle_exit+0x18c/0x5a0 [kvm_intel] kvm_arch_vcpu_ioctl_run+0xc55/0x1c20 [kvm] kvm_vcpu_ioctl+0x2d5/0x980 [kvm] __x64_sys_ioctl+0x8a/0xd0 do_syscall_64+0xb5/0x730 entry_SYSCALL_64_after_hwframe+0x4b/0x53 RIP: 0033:0x47fa3f ---[ end trace 0000000000000000 ]---
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:ipv6: add NULL checks for idev in SRv6 paths__in6_dev_get() can return NULL when the device has no IPv6 configuration(e.g. MTU < IPV6_MIN_MTU or after NETDEV_UNREGISTER).Add NULL checks for idev returned by __in6_dev_get() in bothseg6_hmac_validate_skb() and ipv6_srh_rcv() to prevent potential NULLpointer dereferences.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: Unknown.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- xen-libs > 0-0 (version in image is 4.20.2_08-150700.3.28.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:KVM: SEV: Lock all vCPUs when synchronzing VMSAs for SNP launch finishLock all vCPUs when synchronizing and encrypting VMSAs for SNP guests, asallowing userspace to manipulate and/or run a vCPU while its state is beingsynchronized would at best corrupt vCPU state, and at worst crash the hostkernel.Opportunistically assert that vcpu->mutex is held when synchronizing itsVMSA (the SEV-ES path already locks vCPUs).
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:net: sched: act_csum: validate nested VLAN headerstcf_csum_act() walks nested VLAN headers directly from skb->data when anskb still carries in-payload VLAN tags. The current code readsvlan->h_vlan_encapsulated_proto and then pulls VLAN_HLEN bytes withoutfirst ensuring that the full VLAN header is present in the linear area.If only part of an inner VLAN header is linearized, accessingh_vlan_encapsulated_proto reads past the linear area, and the followingskb_pull(VLAN_HLEN) may violate skb invariants.Fix this by requiring pskb_may_pull(skb, VLAN_HLEN) before accessing andpulling each nested VLAN header. If the header still is not fullyavailable, drop the packet through the existing error path.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: Unknown.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- qemu-img > 0-0 (version in image is 9.2.4-150700.3.17.1).
-
Description: Vulnerability in the OpenSSH GSSAPI delta included in various Linux distributions. This vulnerability affects the GSSAPI patches added by various Linux distributions and does not affect the OpenSSH upstream project itself. The usage of sshpkt_disconnect() on an error, which does not terminate the process, allows an attacker to send an unexpected GSSAPI message type during the GSSAPI key exchange to the server, which will call the underlying function and continue the execution of the program without setting the related connection variables. As the variables are not initialized to NULL the code later accesses those uninitialized variables, accessing random memory, which could lead to undefined behavior. The recommended workaround is to use ssh_packet_disconnect() instead, which does terminate the process. The impact of the vulnerability depends heavily on the compiler flag hardening configuration.
Packages affected:
- sle-module-desktop-applications-release == 15.7 (version in image is 15.7-150700.28.1).
- openssh > 0-0 (version in image is 9.6p1-150600.6.34.1).
-
Description: spdystream is a Go library for multiplexing streams over SPDY connections. In versions 0.5.0 and below, the SPDY/3 frame parser does not validate attacker-controlled counts and lengths before allocating memory. Three allocation paths are affected: the SETTINGS frame entry count, the header count in parseHeaderValueBlock, and individual header field sizes - all read as 32-bit integers and used directly as allocation sizes with no bounds checking. Because SPDY header blocks are zlib-compressed, a small on-the-wire payload can decompress into large attacker-controlled values. A remote peer that can send SPDY frames to a service using spdystream can exhaust process memory and cause an out-of-memory crash with a single crafted control frame. This issue has been fixed in version 0.5.1.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- containerd > 0-0 (version in image is 1.7.29-150000.132.1).
-
Description: The fix for CVE-2026-0672, which rejected control characters in http.cookies.Morsel, was incomplete. The Morsel.update(), |= operator, and unpickling paths were not patched, allowing control characters to bypass input validation. Additionally, BaseCookie.js_output() lacked the output validation applied to BaseCookie.output().
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- python3 > 0-0 (version in image is 3.6.15-150300.10.109.1).
-
Description: Unknown.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- curl > 0-0 (version in image is 8.14.1-150700.7.14.1).
-
Description: A flaw was found in libxml2. This vulnerability occurs when the library processes a specially crafted XML Schema Definition (XSD) validated document that includes an internal entity reference. An attacker could exploit this by providing a malicious document, leading to a type confusion error that causes the application to crash. This results in a denial of service (DoS), making the affected system or application unavailable.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- libxml2-2 > 0-0 (version in image is 2.12.10-150700.4.11.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:accel/ivpu: Prevent recovery work from being queued during device removalUse disable_work_sync() instead of cancel_work_sync() in ivpu_dev_fini()to ensure that no new recovery work items can be queued after deviceremoval has started. Previously, recovery work could be scheduled evenafter canceling existing work, potentially leading to use-after-freebugs if recovery accessed freed resources.Rename ivpu_pm_cancel_recovery() to ivpu_pm_disable_recovery() to betterreflect its new behavior.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:drm/panthor: Fix UAF race between device unplug and FW event processingThe function panthor_fw_unplug() will free the FW memory sections.The problem is that there could still be pending FW events which are yetnot handled at this point. process_fw_events_work() can in this case tryto access said freed memory.Simply call disable_work_sync() to both drain and prevent futureinvocation of process_fw_events_work().
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:net/sched: act_gate: snapshot parameters with RCU on replaceThe gate action can be replaced while the hrtimer callback or dump path iswalking the schedule list.Convert the parameters to an RCU-protected snapshot and swap updates undertcf_lock, freeing the previous snapshot via call_rcu(). When REPLACE omitsthe entry list, preserve the existing schedule so the effective state isunchanged.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:net: ethernet: mtk_eth_soc: Reset prog ptr to old_prog in case of error in mtk_xdp_setup()Reset eBPF program pointer to old_prog and do not decrease its ref-countif mtk_open routine in mtk_xdp_setup() fails.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:bpf: Fix a UAF issue in bpf_trampoline_link_cgroup_shimThe root cause of this bug is that when 'bpf_link_put' reduces therefcount of 'shim_link->link.link' to zero, the resource is consideredreleased but may still be referenced via 'tr->progs_hlist' in'cgroup_shim_find'. The actual cleanup of 'tr->progs_hlist' in'bpf_shim_tramp_link_release' is deferred. During this window, anotherprocess can cause a use-after-free via 'bpf_trampoline_link_cgroup_shim'.Based on Martin KaFai Lau's suggestions, I have created a simple patch.To fix this: Add an atomic non-zero check in 'bpf_trampoline_link_cgroup_shim'. Only increment the refcount if it is not already zero.Testing: I verified the fix by adding a delay in 'bpf_shim_tramp_link_release' to make the bug easier to trigger:static void bpf_shim_tramp_link_release(struct bpf_link *link){ /* ... */ if (!shim_link->trampoline) return;+ msleep(100); WARN_ON_ONCE(bpf_trampoline_unlink_prog(&shim_link->link, shim_link->trampoline, NULL)); bpf_trampoline_put(shim_link->trampoline);}Before the patch, running a PoC easily reproduced the crash(almost 100%)with a call trace similar to KaiyanM's report.After the patch, the bug no longer occurs even after millions ofiterations.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default < 6.4.0-150700.53.37.1 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:net: sched: avoid qdisc_reset_all_tx_gt() vs dequeue race for lockless qdiscsWhen shrinking the number of real tx queues,netif_set_real_num_tx_queues() calls qdisc_reset_all_tx_gt() to flushqdiscs for queues which will no longer be used.qdisc_reset_all_tx_gt() currently serializes qdisc_reset() withqdisc_lock(). However, for lockless qdiscs, the dequeue path isserialized by qdisc_run_begin/end() using qdisc->seqlock instead, soqdisc_reset() can run concurrently with __qdisc_run() and free skbswhile they are still being dequeued, leading to UAF.This can easily be reproduced on e.g. virtio-net by imposing heavytraffic while frequently changing the number of queue pairs: iperf3 -ub0 -c $peer -t 0 & while :; do ethtool -L eth0 combined 1 ethtool -L eth0 combined 2 doneWith KASAN enabled, this leads to reports like: BUG: KASAN: slab-use-after-free in __qdisc_run+0x133f/0x1760 ... Call Trace: ... __qdisc_run+0x133f/0x1760 __dev_queue_xmit+0x248f/0x3550 ip_finish_output2+0xa42/0x2110 ip_output+0x1a7/0x410 ip_send_skb+0x2e6/0x480 udp_send_skb+0xb0a/0x1590 udp_sendmsg+0x13c9/0x1fc0 ... Allocated by task 1270 on cpu 5 at 44.558414s: ... alloc_skb_with_frags+0x84/0x7c0 sock_alloc_send_pskb+0x69a/0x830 __ip_append_data+0x1b86/0x48c0 ip_make_skb+0x1e8/0x2b0 udp_sendmsg+0x13a6/0x1fc0 ... Freed by task 1306 on cpu 3 at 44.558445s: ... kmem_cache_free+0x117/0x5e0 pfifo_fast_reset+0x14d/0x580 qdisc_reset+0x9e/0x5f0 netif_set_real_num_tx_queues+0x303/0x840 virtnet_set_channels+0x1bf/0x260 [virtio_net] ethnl_set_channels+0x684/0xae0 ethnl_default_set_doit+0x31a/0x890 ...Serialize qdisc_reset_all_tx_gt() against the lockless dequeue path bytaking qdisc->seqlock for TCQ_F_NOLOCK qdiscs, matching theserialization model already used by dev_reset_queue().Additionally clear QDISC_STATE_NON_EMPTY after reset so the qdisc statereflects an empty queue, avoiding needless re-scheduling.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:clsact: Fix use-after-free in init/destroy rollback asymmetryFix a use-after-free in the clsact qdisc upon init/destroy rollback asymmetry.The latter is achieved by first fully initializing a clsact instance, andthen in a second step having a replacement failure for the new clsact qdiscinstance. clsact_init() initializes ingress first and then takes care of theegress part. This can fail midway, for example, via tcf_block_get_ext(). Uponfailure, the kernel will trigger the clsact_destroy() callback.Commit 1cb6f0bae504 ("bpf: Fix too early release of tcx_entry") details theway how the transition is happening. If tcf_block_get_ext on the q->ingress_blockends up failing, we took the tcx_miniq_inc reference count on the ingressside, but not yet on the egress side. clsact_destroy() tests whether the{ingress,egress}_entry was non-NULL. However, even in midway failure on thereplacement, both are in fact non-NULL with a valid egress_entry from theprevious clsact instance.What we really need to test for is whether the qdisc instance-specific ingressor egress side previously got initialized. This adds a small helper for checkingthe miniq initialization called mini_qdisc_pair_inited, and utilizes that uponclsact_destroy() in order to fix the use-after-free scenario. Convert theingress_destroy() side as well so both are consistent to each other.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default < 6.4.0-150700.53.37.1 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:bnxt_en: fix OOB access in DBG_BUF_PRODUCER async event handlerThe ASYNC_EVENT_CMPL_EVENT_ID_DBG_BUF_PRODUCER handler inbnxt_async_event_process() uses a firmware-supplied 'type' fielddirectly as an index into bp->bs_trace[] without bounds validation.The 'type' field is a 16-bit value extracted from DMA-mapped completionring memory that the NIC writes directly to host RAM. A malicious orcompromised NIC can supply any value from 0 to 65535, causing anout-of-bounds access into kernel heap memory.The bnxt_bs_trace_check_wrap() call then dereferences bs_trace->magic_byteand writes to bs_trace->last_offset and bs_trace->wrapped, leading tokernel memory corruption or a crash.Fix by adding a bounds check and defining BNXT_TRACE_MAX asDBG_LOG_BUFFER_FLUSH_REQ_TYPE_ERR_QPC_TRACE + 1 to cover all currentlydefined firmware trace types (0x0 through 0xc).
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:RDMA/efa: Fix use of completion ctx after freeOn admin queue completion handling, if the admin command completed witherror we print data from the completion context. The issue is that wealready freed the completion context in polling/interrupts handler whichmeans we print data from context in an unknown state (it might bealready used again).Change the admin submission flow so alloc/dealloc of the context will besymmetric and dealloc will be called after any potential use of thecontext.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:team: fix header_ops type confusion with non-Ethernet portsSimilar to commit 950803f72547 ("bonding: fix type confusion inbond_setup_by_slave()") team has the same class of header_ops typeconfusion.For non-Ethernet ports, team_setup_by_port() copies port_dev->header_opsdirectly. When the team device later calls dev_hard_header() ordev_parse_header(), these callbacks can run with the team net_deviceinstead of the real lower device, so netdev_priv(dev) is interpreted asthe wrong private type and can crash.The syzbot report shows a crash in bond_header_create(), but the rootcause is in team: the topology is gre -> bond -> team, and team callsthe inherited header_ops with its own net_device instead of the lowerdevice, so bond_header_create() receives a team device and interpretsnetdev_priv() as bonding private data, causing a type confusion crash.Fix this by introducing team header_ops wrappers for create/parse,selecting a team port under RCU, and calling the lower device callbackswith port->dev, so each callback always sees the correct net_devicecontext.Also pass the selected lower device to the lower parse callback, sorecursion is bounded in stacked non-Ethernet topologies and parsecallbacks always run with the correct device context.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:xfrm: prevent policy_hthresh.work from racing with netns teardownA XFRM_MSG_NEWSPDINFO request can queue the per-net work itempolicy_hthresh.work onto the system workqueue.The queued callback, xfrm_hash_rebuild(), retrieves the enclosingstruct net via container_of(). If the net namespace is torn downbefore that work runs, the associated struct net may already havebeen freed, and xfrm_hash_rebuild() may then dereference stale memory.xfrm_policy_fini() already flushes policy_hash_work during teardown,but it does not synchronize policy_hthresh.work.Synchronize policy_hthresh.work in xfrm_policy_fini() as well, so thequeued work cannot outlive the net namespace teardown and access afreed struct net.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:driver core: platform: use generic driver_override infrastructureWhen a driver is probed through __driver_attach(), the bus' match()callback is called without the device lock held, thus accessing thedriver_override field without a lock, which can cause a UAF.Fix this by using the driver-core driver_override infrastructure takingcare of proper locking internally.Note that calling match() from __driver_attach() without the device lockheld is intentional. [1]
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:cxl/port: Fix use after free of parent_port in cxl_detach_ep()cxl_detach_ep() is called during bottom-up removal when all CXL memorydevices beneath a switch port have been removed. For each port in thehierarchy it locks both the port and its parent, removes the endpoint,and if the port is now empty, marks it dead and unregisters the portby calling delete_switch_port(). There are two places during this workwhere the parent_port may be used after freeing:First, a concurrent detach may have already processed a port by thetime a second worker finds it via bus_find_device(). Without pinningparent_port, it may already be freed when we discover port->dead andattempt to unlock the parent_port. In a production kernel that's asilent memory corruption, with lock debug, it looks like this:[]DEBUG_LOCKS_WARN_ON(__owner_task(owner) != get_current())[]WARNING: kernel/locking/mutex.c:949 at __mutex_unlock_slowpath+0x1ee/0x310[]Call Trace:[]mutex_unlock+0xd/0x20[]cxl_detach_ep+0x180/0x400 [cxl_core][]devm_action_release+0x10/0x20[]devres_release_all+0xa8/0xe0[]device_unbind_cleanup+0xd/0xa0[]really_probe+0x1a6/0x3e0Second, delete_switch_port() releases three devm actions registeredagainst parent_port. The last of those is unregister_port() and itcalls device_unregister() on the child port, which can cascade. Ifparent_port is now also empty the device core may unregister and freeit too. So by the time delete_switch_port() returns, parent_port maybe free, and the subsequent device_unlock(&parent_port->dev) operateson freed memory. The kernel log looks same as above, with a differentoffset in cxl_detach_ep().Both of these issues stem from the absence of a lifetime guaranteebetween a child port and its parent port.Establish a lifetime rule for ports: child ports hold a reference totheir parent device until release. Take the reference when the portis allocated and drop it when released. This ensures the parent isvalid for the full lifetime of the child and eliminates the use afterfree window in cxl_detach_ep().This is easily reproduced with a reload of cxl_acpi in QEMU with CXLdevices present.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:xfrm: hold dev ref until after transport_finish NF_HOOKAfter async crypto completes, xfrm_input_resume() calls dev_put()immediately on re-entry before the skb reaches transport_finish.The skb->dev pointer is then used inside NF_HOOK and its okfn,which can race with device teardown.Remove the dev_put from the async resumption entry and insteaddrop the reference after the NF_HOOK call in transport_finish,using a saved device pointer since NF_HOOK may consume the skb.This covers NF_DROP, NF_QUEUE and NF_STOLEN paths that skipthe okfn.For non-transport exits (decaps, gro, drop) and secondaryasync return points, release the reference inline whenasync is set.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:netfilter: nft_ct: fix use-after-free in timeout object destroynft_ct_timeout_obj_destroy() frees the timeout object with kfree()immediately after nf_ct_untimeout(), without waiting for an RCU graceperiod. Concurrent packet processing on other CPUs may still holdRCU-protected references to the timeout object obtained viarcu_dereference() in nf_ct_timeout_data().Add an rcu_head to struct nf_ct_timeout and use kfree_rcu() to deferfreeing until after an RCU grace period, matching the approach alreadyused in nfnetlink_cttimeout.c.KASAN report: BUG: KASAN: slab-use-after-free in nf_conntrack_tcp_packet+0x1381/0x29d0 Read of size 4 at addr ffff8881035fe19c by task exploit/80 Call Trace: nf_conntrack_tcp_packet+0x1381/0x29d0 nf_conntrack_in+0x612/0x8b0 nf_hook_slow+0x70/0x100 __ip_local_out+0x1b2/0x210 tcp_sendmsg_locked+0x722/0x1580 __sys_sendto+0x2d8/0x320 Allocated by task 75: nft_ct_timeout_obj_init+0xf6/0x290 nft_obj_init+0x107/0x1b0 nf_tables_newobj+0x680/0x9c0 nfnetlink_rcv_batch+0xc29/0xe00 Freed by task 26: nft_obj_destroy+0x3f/0xa0 nf_tables_trans_destroy_work+0x51c/0x5c0 process_one_work+0x2c4/0x5a0
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:openvswitch: defer tunnel netdev_put to RCU releaseovs_netdev_tunnel_destroy() may run after NETDEV_UNREGISTER alreadydetached the device. Dropping the netdev reference in destroy can racewith concurrent readers that still observe vport->dev.Do not release vport->dev in ovs_netdev_tunnel_destroy(). Instead, letvport_netdev_free() drop the reference from the RCU callback, matchingthe non-tunnel destroy path and avoiding additional synchronizationunder RTNL.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:driver core: enforce device_lock for driver_match_device()Currently, driver_match_device() is called from three sites. One site(__device_attach_driver) holds device_lock(dev), but the other two(bind_store and __driver_attach) do not. This inconsistency means thatbus match() callbacks are not guaranteed to be called with the lockheld.Fix this by introducing driver_match_device_locked(), which guaranteesholding the device lock using a scoped guard. Replace the unlocked callsin bind_store() and __driver_attach() with this new helper. Also add alock assertion to driver_match_device() to enforce this guarantee.This consistency also fixes a known race condition. The driver_overrideimplementation relies on the device_lock, so the missing lock led to theuse-after-free (UAF) reported in Bugzilla for buses using this field.Stress testing the two newly locked paths for 24 hours withCONFIG_PROVE_LOCKING and CONFIG_LOCKDEP enabled showed no UAF recurrenceand no lockdep warnings.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In nspawn in systemd 233 through 259 before 260, an escape-to-host action can occur via a crafted optional config file.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- libsystemd0 > 0-0 (version in image is 254.27-150600.4.62.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:ftruncate: pass a signed offsetThe old ftruncate() syscall, using the 32-bit off_t misses a signextension when called in compat mode on 64-bit architectures. As aresult, passing a negative length accidentally succeeds in truncatingto file size between 2GiB and 4GiB.Changing the type of the compat syscall to the signed compat_off_tchanges the behavior so it instead returns -EINVAL.The native entry point, the truncate() syscall and the correspondingloff_t based variants are all correct already and do not sufferfrom this mistake.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:iomap: adjust read range correctly for non-block-aligned positionsiomap_adjust_read_range() assumes that the position and length passed inare block-aligned. This is not always the case however, as shown in thesyzbot generated case for erofs. This causes too many bytes to beskipped for uptodate blocks, which results in returning the incorrectposition and length to read in. If all the blocks are uptodate, thisunderflows length and returns a position beyond the folio.Fix the calculation to also take into account the block offset whencalculating how many bytes can be skipped for uptodate blocks.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default < 6.4.0-150700.53.37.1 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:net: dsa: properly keep track of conduit referenceProblem description-------------------DSA has a mumbo-jumbo of reference handling of the conduit net deviceand its kobject which, sadly, is just wrong and doesn't make sense.There are two distinct problems.1. The OF path, which uses of_find_net_device_by_node(), never releases the elevated refcount on the conduit's kobject. Nominally, the OF and non-OF paths should result in objects having identical reference counts taken, and it is already suspicious that dsa_dev_to_net_device() has a put_device() call which is missing in dsa_port_parse_of(), but we can actually even verify that an issue exists. With CONFIG_DEBUG_KOBJECT_RELEASE=y, if we run this command "before" and "after" applying this patch:(unbind the conduit driver for net device eno2)echo 0000:00:00.2 > /sys/bus/pci/drivers/fsl_enetc/unbindwe see these lines in the output diff which appear only with the patchapplied:kobject: 'eno2' (ffff002009a3a6b8): kobject_release, parent 0000000000000000 (delayed 1000)kobject: '109' (ffff0020099d59a0): kobject_release, parent 0000000000000000 (delayed 1000)2. After we find the conduit interface one way (OF) or another (non-OF), it can get unregistered at any time, and DSA remains with a long-lived, but in this case stale, cpu_dp->conduit pointer. Holding the net device's underlying kobject isn't actually of much help, it just prevents it from being freed (but we never need that kobject directly). What helps us to prevent the net device from being unregistered is the parallel netdev reference mechanism (dev_hold() and dev_put()).Actually we actually use that netdev tracker mechanism implicitly onuser ports since commit 2f1e8ea726e9 ("net: dsa: link interfaces withthe DSA master to get rid of lockdep warnings"), via netdev_upper_dev_link().But time still passes at DSA switch probe time between the initialof_find_net_device_by_node() code and the user port creation time, timeduring which the conduit could unregister itself and DSA wouldn't knowabout it.So we have to run of_find_net_device_by_node() under rtnl_lock() toprevent that from happening, and release the lock only with the netdevtracker having acquired the reference.Do we need to keep the reference until dsa_unregister_switch() /dsa_switch_shutdown()?1: Maybe yes. A switch device will still be registered even if all user ports failed to probe, see commit 86f8b1c01a0a ("net: dsa: Do not make user port errors fatal"), and the cpu_dp->conduit pointers remain valid. I haven't audited all call paths to see whether they will actually use the conduit in lack of any user port, but if they do, it seems safer to not rely on user ports for that reference.2. Definitely yes. We support changing the conduit which a user port is associated to, and we can get into a situation where we've moved all user ports away from a conduit, thus no longer hold any reference to it via the net device tracker. But we shouldn't let it go nonetheless - see the next change in relation to dsa_tree_find_first_conduit() and LAG conduits which disappear. We have to be prepared to return to the physical conduit, so the CPU port must explicitly keep another reference to it. This is also to say: the user ports and their CPU ports may not always keep a reference to the same conduit net device, and both are needed.As for the conduit's kobject for the /sys/class/net/ entry, we don'tcare about it, we can release it as soon as we hold the net deviceobject itself.History and blame attribution-----------------------------The code has been refactored so many times, it is very difficult tofollow and properly attribute a blame, but I'll try to make a shorthistory which I hope to be correct.We have two distinct probing paths:- one for OF, introduced in 2016 i---truncated---
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:gve: Fix stats report corruption on queue count changeThe driver and the NIC share a region in memory for stats reporting.The NIC calculates its offset into this region based on the total sizeof the stats region and the size of the NIC's stats.When the number of queues is changed, the driver's stats region isresized. If the queue count is increased, the NIC can write pastthe end of the allocated stats region, causing memory corruption.If the queue count is decreased, there is a gap between the driverand NIC stats, leading to incorrect stats reporting.This change fixes the issue by allocating stats region with maximumsize, and the offset calculation for NIC stats is changed to matchwith the calculation of the NIC.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:wifi: libertas: fix use-after-free in lbs_free_adapter()The lbs_free_adapter() function uses timer_delete() (non-synchronous)for both command_timer and tx_lockup_timer before the structure isfreed. This is incorrect because timer_delete() does not wait forany running timer callback to complete.If a timer callback is executing when lbs_free_adapter() is called,the callback will access freed memory since lbs_cfg_free() frees thecontaining structure immediately after lbs_free_adapter() returns.Both timer callbacks (lbs_cmd_timeout_handler and lbs_tx_lockup_handler)access priv->driver_lock, priv->cur_cmd, priv->dev, and other fields,which would all be use-after-free violations.Use timer_delete_sync() instead to ensure any running timer callbackhas completed before returning.This bug was introduced in commit 8f641d93c38a ("libertas: detect TXlockups and reset hardware") where del_timer() was used instead ofdel_timer_sync() in the cleanup path. The command_timer has had thesame issue since the driver was first written.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default < 6.4.0-150700.53.37.1 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:drbd: fix "LOGIC BUG" in drbd_al_begin_io_nonblock()Even though we check that we "should" be able to do lc_get_cumulative()while holding the device->al_lock spinlock, it may still fail,if some other code path decided to do lc_try_lock() with bad timing.If that happened, we logged "LOGIC BUG for enr=...",but still did not return an error.The rest of the code now assumed that this request has referencesfor the relevant activity log extents.The implcations are that during an active resync, mutual exclusivity ofresync versus application IO is not guaranteed. And a potential crashat this point may not realizs that these extents could have been targetof in-flight IO and would need to be resynced just in case.Also, once the request completes, it will give up activity log references itdoes not even hold, which will trigger a BUG_ON(refcnt == 0) in lc_put().Fix:Do not crash the kernel for a condition that is harmless during normaloperation: also catch "e->refcnt == 0", not only "e == NULL"when being noisy about "al_complete_io() called on inactive extent %u\n".And do not try to be smart and "guess" whether something will work, thenbe surprised when it does not.Deal with the fact that it may or may not work. If it does not, remember apossible "partially in activity log" state (only possible for requests thatcross extent boundaries), and return an error code fromdrbd_al_begin_io_nonblock().A latter call for the same request will then resume from where we left off.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:net/sched: act_ife: Fix metalist update behaviorWhenever an ife action replace changes the metalist, instead ofreplacing the old data on the metalist, the current ife code is appendingthe new metadata. Aside from being innapropriate behavior, this may leadto an unbounded addition of metadata to the metalist which might cause anout of bounds error when running the encode op:[ 138.423369][ C1] ==================================================================[ 138.424317][ C1] BUG: KASAN: slab-out-of-bounds in ife_tlv_meta_encode (net/ife/ife.c:168)[ 138.424906][ C1] Write of size 4 at addr ffff8880077f4ffe by task ife_out_out_bou/255[ 138.425778][ C1] CPU: 1 UID: 0 PID: 255 Comm: ife_out_out_bou Not tainted 7.0.0-rc1-00169-gfbdfa8da05b6 #624 PREEMPT(full)[ 138.425795][ C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011[ 138.425800][ C1] Call Trace:[ 138.425804][ C1] [ 138.425808][ C1] dump_stack_lvl (lib/dump_stack.c:122)[ 138.425828][ C1] print_report (mm/kasan/report.c:379 mm/kasan/report.c:482)[ 138.425839][ C1] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)[ 138.425844][ C1] ? __virt_addr_valid (./arch/x86/include/asm/preempt.h:95 (discriminator 1) ./include/linux/rcupdate.h:975 (discriminator 1) ./include/linux/mmzone.h:2207 (discriminator 1) arch/x86/mm/physaddr.c:54 (discriminator 1))[ 138.425853][ C1] ? ife_tlv_meta_encode (net/ife/ife.c:168)[ 138.425859][ C1] kasan_report (mm/kasan/report.c:221 mm/kasan/report.c:597)[ 138.425868][ C1] ? ife_tlv_meta_encode (net/ife/ife.c:168)[ 138.425878][ C1] kasan_check_range (mm/kasan/generic.c:186 (discriminator 1) mm/kasan/generic.c:200 (discriminator 1))[ 138.425884][ C1] __asan_memset (mm/kasan/shadow.c:84 (discriminator 2))[ 138.425889][ C1] ife_tlv_meta_encode (net/ife/ife.c:168)[ 138.425893][ C1] ? ife_tlv_meta_encode (net/ife/ife.c:171)[ 138.425898][ C1] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)[ 138.425903][ C1] ife_encode_meta_u16 (net/sched/act_ife.c:57)[ 138.425910][ C1] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114)[ 138.425916][ C1] ? __asan_memcpy (mm/kasan/shadow.c:105 (discriminator 3))[ 138.425921][ C1] ? __pfx_ife_encode_meta_u16 (net/sched/act_ife.c:45)[ 138.425927][ C1] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)[ 138.425931][ C1] tcf_ife_act (net/sched/act_ife.c:847 net/sched/act_ife.c:879)To solve this issue, fix the replace behavior by adding the metalist tothe ife rcu data structure.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:Squashfs: check metadata block offset is within rangeSyzkaller reports a "general protection fault in squashfs_copy_data"This is ultimately caused by a corrupted index look-up table, whichproduces a negative metadata block offset.This is subsequently passed to squashfs_copy_data (viasquashfs_read_metadata) where the negative offset causes an out of boundsaccess.The fix is to check that the offset is within range insquashfs_read_metadata. This will trap this and other cases.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:netfilter: nf_conntrack_h323: check for zero length in DecodeQ931()In DecodeQ931(), the UserUserIE code path reads a 16-bit length fromthe packet, then decrements it by 1 to skip the protocol discriminatorbyte before passing it to DecodeH323_UserInformation(). If the encodedlength is 0, the decrement wraps to -1, which is then passed as alarge value to the decoder, leading to an out-of-bounds read.Add a check to ensure len is positive after the decrement.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: Libgcrypt before 1.12.2 sometimes allows a heap-based buffer overflow and denial of service via crafted ECDH ciphertext to gcry_pk_decrypt.
Packages affected:
- sle-module-server-applications-release == 15.7 (version in image is 15.7-150700.28.1).
- grub2-x86_64-xen > 0-0 (version in image is 2.12-150700.19.29.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:parisc: Revise __get_user() to probe user read accessBecause of the way read access support is implemented, read accessinterruptions are only triggered at privilege levels 2 and 3. Thekernel executes at privilege level 0, so __get_user() never triggersa read access interruption (code 26). Thus, it is currently possiblefor user code to access a read protected address via a system call.Fix this by probing read access rights at privilege level 3 (PRIV_USER)and setting __gu_err to -EFAULT (-14) if access isn't allowed.Note the cmpiclr instruction does a 32-bit compare because COND macrodoesn't work inside asm.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:scsi: target: target_core_configfs: Add length check to avoid buffer overflowA buffer overflow arises from the usage of snprintf to write into thebuffer "buf" in target_lu_gp_members_show function located in/drivers/target/target_core_configfs.c. This buffer is allocated withsize LU_GROUP_NAME_BUF (256 bytes).snprintf(...) formats multiple strings into buf with the HBA name(hba->hba_group.cg_item), a slash character, a devicename (dev->dev_group.cg_item) and a newline character, the total formatted stringlength may exceed the buffer size of 256 bytes.Since snprintf() returns the total number of bytes that would have beenwritten (the length of %s/%sn ), this value may exceed the buffer length(256 bytes) passed to memcpy(), this will ultimately cause functionmemcpy reporting a buffer overflow error.An additional check of the return value of snprintf() can avoid thisbuffer overflow.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default < 6.4.0-150700.53.37.1 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:apparmor: validate DFA start states are in bounds in unpack_pdbStart states are read from untrusted data and used as indexes into theDFA state tables. The aa_dfa_next() function call in unpack_pdb() willaccess dfa->tables[YYTD_ID_BASE][start], and if the start state exceedsthe number of states in the DFA, this results in an out-of-bound read.================================================================== BUG: KASAN: slab-out-of-bounds in aa_dfa_next+0x2a1/0x360 Read of size 4 at addr ffff88811956fb90 by task su/1097 ...Reject policies with out-of-bounds start states during unpackingto prevent the issue.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:net: macb: fix use-after-free access to PTP clockPTP clock is registered on every opening of the interface and destroyed onevery closing. However it may be accessed via get_ts_info ethtool callwhich is possible while the interface is just present in the kernel.BUG: KASAN: use-after-free in ptp_clock_index+0x47/0x50 drivers/ptp/ptp_clock.c:426Read of size 4 at addr ffff8880194345cc by task syz.0.6/948CPU: 1 PID: 948 Comm: syz.0.6 Not tainted 6.1.164+ #109Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.1-0-g3208b098f51a-prebuilt.qemu.org 04/01/2014Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x8d/0xba lib/dump_stack.c:106 print_address_description mm/kasan/report.c:316 [inline] print_report+0x17f/0x496 mm/kasan/report.c:420 kasan_report+0xd9/0x180 mm/kasan/report.c:524 ptp_clock_index+0x47/0x50 drivers/ptp/ptp_clock.c:426 gem_get_ts_info+0x138/0x1e0 drivers/net/ethernet/cadence/macb_main.c:3349 macb_get_ts_info+0x68/0xb0 drivers/net/ethernet/cadence/macb_main.c:3371 __ethtool_get_ts_info+0x17c/0x260 net/ethtool/common.c:558 ethtool_get_ts_info net/ethtool/ioctl.c:2367 [inline] __dev_ethtool net/ethtool/ioctl.c:3017 [inline] dev_ethtool+0x2b05/0x6290 net/ethtool/ioctl.c:3095 dev_ioctl+0x637/0x1070 net/core/dev_ioctl.c:510 sock_do_ioctl+0x20d/0x2c0 net/socket.c:1215 sock_ioctl+0x577/0x6d0 net/socket.c:1320 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __x64_sys_ioctl+0x18c/0x210 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x35/0x80 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x6e/0xd8 Allocated by task 457: kmalloc include/linux/slab.h:563 [inline] kzalloc include/linux/slab.h:699 [inline] ptp_clock_register+0x144/0x10e0 drivers/ptp/ptp_clock.c:235 gem_ptp_init+0x46f/0x930 drivers/net/ethernet/cadence/macb_ptp.c:375 macb_open+0x901/0xd10 drivers/net/ethernet/cadence/macb_main.c:2920 __dev_open+0x2ce/0x500 net/core/dev.c:1501 __dev_change_flags+0x56a/0x740 net/core/dev.c:8651 dev_change_flags+0x92/0x170 net/core/dev.c:8722 do_setlink+0xaf8/0x3a80 net/core/rtnetlink.c:2833 __rtnl_newlink+0xbf4/0x1940 net/core/rtnetlink.c:3608 rtnl_newlink+0x63/0xa0 net/core/rtnetlink.c:3655 rtnetlink_rcv_msg+0x3c6/0xed0 net/core/rtnetlink.c:6150 netlink_rcv_skb+0x15d/0x430 net/netlink/af_netlink.c:2511 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x6d7/0xa30 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x97e/0xeb0 net/netlink/af_netlink.c:1872 sock_sendmsg_nosec net/socket.c:718 [inline] __sock_sendmsg+0x14b/0x180 net/socket.c:730 __sys_sendto+0x320/0x3b0 net/socket.c:2152 __do_sys_sendto net/socket.c:2164 [inline] __se_sys_sendto net/socket.c:2160 [inline] __x64_sys_sendto+0xdc/0x1b0 net/socket.c:2160 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x35/0x80 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x6e/0xd8Freed by task 938: kasan_slab_free include/linux/kasan.h:177 [inline] slab_free_hook mm/slub.c:1729 [inline] slab_free_freelist_hook mm/slub.c:1755 [inline] slab_free mm/slub.c:3687 [inline] __kmem_cache_free+0xbc/0x320 mm/slub.c:3700 device_release+0xa0/0x240 drivers/base/core.c:2507 kobject_cleanup lib/kobject.c:681 [inline] kobject_release lib/kobject.c:712 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x1cd/0x350 lib/kobject.c:729 put_device+0x1b/0x30 drivers/base/core.c:3805 ptp_clock_unregister+0x171/0x270 drivers/ptp/ptp_clock.c:391 gem_ptp_remove+0x4e/0x1f0 drivers/net/ethernet/cadence/macb_ptp.c:404 macb_close+0x1c8/0x270 drivers/net/ethernet/cadence/macb_main.c:2966 __dev_close_many+0x1b9/0x310 net/core/dev.c:1585 __dev_close net/core/dev.c:1597 [inline] __dev_change_flags+0x2bb/0x740 net/core/dev.c:8649 dev_change_fl---truncated---
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:udp: Fix wildcard bind conflict check when using hash2When binding a udp_sock to a local address and port, UDP usestwo hashes (udptable->hash and udptable->hash2) for collisiondetection. The current code switches to "hash2" whenhslot->count > 10."hash2" is keyed by local address and local port."hash" is keyed by local port only.The issue can be shown in the following bind sequence (pseudo code):bind(fd1, "[fd00::1]:8888")bind(fd2, "[fd00::2]:8888")bind(fd3, "[fd00::3]:8888")bind(fd4, "[fd00::4]:8888")bind(fd5, "[fd00::5]:8888")bind(fd6, "[fd00::6]:8888")bind(fd7, "[fd00::7]:8888")bind(fd8, "[fd00::8]:8888")bind(fd9, "[fd00::9]:8888")bind(fd10, "[fd00::10]:8888")/* Correctly return -EADDRINUSE because "hash" is used * instead of "hash2". udp_lib_lport_inuse() detects the * conflict. */bind(fail_fd, "[::]:8888")/* After one more socket is bound to "[fd00::11]:8888", * hslot->count exceeds 10 and "hash2" is used instead. */bind(fd11, "[fd00::11]:8888")bind(fail_fd, "[::]:8888") /* succeeds unexpectedly */The same issue applies to the IPv4 wildcard address "0.0.0.0"and the IPv4-mapped wildcard address "::ffff:0.0.0.0". Forexample, if there are existing sockets bound to"192.168.1.[1-11]:8888", then binding "0.0.0.0:8888" or"[::ffff:0.0.0.0]:8888" can also miss the conflict whenhslot->count > 10.TCP inet_csk_get_port() already has the correct check ininet_use_bhash2_on_bind(). Rename it toinet_use_hash2_on_bind() and move it to inet_hashtables.hso udp.c can reuse it in this fix.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:KVM: SEV: Reject attempts to sync VMSA of an already-launched/encrypted vCPUReject synchronizing vCPU state to its associated VMSA if the vCPU hasalready been launched, i.e. if the VMSA has already been encrypted. On ahost with SNP enabled, accessing guest-private memory generates an RMP #PFand panics the host. BUG: unable to handle page fault for address: ff1276cbfdf36000 #PF: supervisor write access in kernel mode #PF: error_code(0x80000003) - RMP violation PGD 5a31801067 P4D 5a31802067 PUD 40ccfb5063 PMD 40e5954063 PTE 80000040fdf36163 SEV-SNP: PFN 0x40fdf36, RMP entry: [0x6010fffffffff001 - 0x000000000000001f] Oops: Oops: 0003 [#1] SMP NOPTI CPU: 33 UID: 0 PID: 996180 Comm: qemu-system-x86 Tainted: G OE Tainted: [O]=OOT_MODULE, [E]=UNSIGNED_MODULE Hardware name: Dell Inc. PowerEdge R7625/0H1TJT, BIOS 1.5.8 07/21/2023 RIP: 0010:sev_es_sync_vmsa+0x54/0x4c0 [kvm_amd] Call Trace: snp_launch_update_vmsa+0x19d/0x290 [kvm_amd] snp_launch_finish+0xb6/0x380 [kvm_amd] sev_mem_enc_ioctl+0x14e/0x720 [kvm_amd] kvm_arch_vm_ioctl+0x837/0xcf0 [kvm] kvm_vm_ioctl+0x3fd/0xcc0 [kvm] __x64_sys_ioctl+0xa3/0x100 x64_sys_call+0xfe0/0x2350 do_syscall_64+0x81/0x10f0 entry_SYSCALL_64_after_hwframe+0x76/0x7e RIP: 0033:0x7ffff673287d Note, the KVM flaw has been present since commit ad73109ae7ec ("KVM: SVM:Provide support to launch and run an SEV-ES guest"), but has only beenactively dangerous for the host since SNP support was added. With SEV-ES,KVM would "just" clobber guest state, which is totally fine from a hostkernel perspective since userspace can clobber guest state any time beforesev_launch_update_vmsa().
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:usb: gadget: f_hid: don't call cdev_init while cdev in useWhen calling unbind, then bind again, cdev_init reinitialized the cdev,even though there may still be references to it. That's the case whenthe /dev/hidg* device is still opened. This obviously unsafe behaviorlike oopes.This fixes this by using cdev_alloc to put the cdev on the heap. Thatway, we can simply allocate a new one in hidg_bind.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:usb: gadget: f_phonet: fix skb frags[] overflow in pn_rx_complete()A broken/bored/mean USB host can overflow the skb_shared_info->frags[]array on a Linux gadget exposing a Phonet function by sending anunbounded sequence of full-page OUT transfers.pn_rx_complete() finalizes the skb only when req->actual < req->length,where req->length is set to PAGE_SIZE by the gadget. If the host alwayssends exactly PAGE_SIZE bytes per transfer, fp->rx.skb will never bereset and each completion will add another fragment viaskb_add_rx_frag(). Once nr_frags exceeds MAX_SKB_FRAGS (default 17),subsequent frag stores overwrite memory adjacent to the shinfo on theheap.Drop the skb and account a length error when the frag limit is reached,matching the fix applied in t7xx by commit f0813bcd2d9d ("net: wwan:t7xx: fix potential skb->frags overflow in RX path").
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: A flaw was found in GNU Binutils. This heap-based buffer overflow vulnerability, specifically an out-of-bounds read in the bfd linker, allows an attacker to gain access to sensitive information. By convincing a user to process a specially crafted XCOFF object file, an attacker can trigger this flaw, potentially leading to information disclosure or an application level denial of service.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- binutils > 0-0 (version in image is 2.45-150100.7.57.1).
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Description: A flaw was found in GNU Binutils. This vulnerability, a heap-based buffer overflow, specifically an out-of-bounds read, exists in the bfd linker component. An attacker could exploit this by convincing a user to process a specially crafted malicious XCOFF object file. Successful exploitation may lead to the disclosure of sensitive information or cause the application to crash, resulting in an application level denial of service.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- binutils > 0-0 (version in image is 2.45-150100.7.57.1).
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Description: A flaw was found in the GNU Binutils BFD library, a widely used component for handling binary files such as object files and executables. The issue occurs when processing specially crafted XCOFF object files, where a relocation type value is not properly validated before being used. This can cause the program to read memory outside of intended bounds. As a result, affected tools may crash or expose unintended memory contents, leading to denial-of-service or limited information disclosure risks.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- binutils > 0-0 (version in image is 2.45-150100.7.57.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:scsi: qla2xxx: Fix improper freeing of purex itemIn qla2xxx_process_purls_iocb(), an item is allocated viaqla27xx_copy_multiple_pkt(), which internally callsqla24xx_alloc_purex_item().The qla24xx_alloc_purex_item() function may return a pre-allocated itemfrom a per-adapter pool for small allocations, instead of dynamicallyallocating memory with kzalloc().An error handling path in qla2xxx_process_purls_iocb() incorrectly useskfree() to release the item. If the item was from the pre-allocatedpool, calling kfree() on it is a bug that can lead to memory corruption.Fix this by using the correct deallocation function,qla24xx_free_purex_item(), which properly handles both dynamicallyallocated and pre-allocated items.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:scsi: pm8001: Fix use-after-free in pm8001_queue_command()Commit e29c47fe8946 ("scsi: pm8001: Simplify pm8001_task_exec()") refactorspm8001_queue_command(), however it introduces a potential cause of a doublefree scenario when it changes the function to return -ENODEV in case of phydown/device gone state.In this path, pm8001_queue_command() updates task status and callstask_done to indicate to upper layer that the task has been handled.However, this also frees the underlying SAS task. A -ENODEV is thenreturned to the caller. When libsas sas_ata_qc_issue() receives this errorvalue, it assumes the task wasn't handled/queued by LLDD and proceeds toclean up and free the task again, resulting in a double free.Since pm8001_queue_command() handles the SAS task in this case, it shouldreturn 0 to the caller indicating that the task has been handled.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: Vim is an open source, command line text editor. Prior to 9.2.0316, a command injection vulnerability in Vim's netbeans interface allows a malicious netbeans server to execute arbitrary Ex commands when Vim connects to it, via unsanitized strings in the defineAnnoType and specialKeys protocol messages. This vulnerability is fixed in 9.2.0316.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- vim > 0-0 (version in image is 9.2.0280-150500.20.46.1).
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Description: cloud-init through 25.1.2 includes the systemd socket unit cloud-init-hotplugd.socket with default SocketMode that grants 0666 permissions, making it world-writable. This is used for the "/run/cloud-init/hook-hotplug-cmd" FIFO. An unprivileged user could trigger hotplug-hook commands.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- cloud-init > 0-0 (version in image is 23.3-150100.8.85.4).
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Description: In GnuPG through 2.4.8, if a signed message has \f at the end of a plaintext line, an adversary can construct a modified message that places additional text after the signed material, such that signature verification of the modified message succeeds (although an "invalid armor" message is printed during verification). This is related to use of \f as a marker to denote truncation of a long plaintext line.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- gpg2 > 0-0 (version in image is 2.4.4-150600.3.15.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:netrom: fix double-free in nr_route_frame()In nr_route_frame(), old_skb is immediately freed without checking ifnr_neigh->ax25 pointer is NULL. Therefore, if nr_neigh->ax25 is NULL,the caller function will free old_skb again, causing a double-free bug.Therefore, to prevent this, we need to modify it to check whethernr_neigh->ax25 is NULL before freeing old_skb.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:net/sched: teql: fix NULL pointer dereference in iptunnel_xmit on TEQL slave xmitteql_master_xmit() calls netdev_start_xmit(skb, slave) to transmitthrough slave devices, but does not update skb->dev to the slave devicebeforehand.When a gretap tunnel is a TEQL slave, the transmit path reachesiptunnel_xmit() which saves dev = skb->dev (still pointing to teql0master) and later calls iptunnel_xmit_stats(dev, pkt_len). Thisfunction does: get_cpu_ptr(dev->tstats)Since teql_master_setup() does not set dev->pcpu_stat_type toNETDEV_PCPU_STAT_TSTATS, the core network stack never allocates tstatsfor teql0, so dev->tstats is NULL. get_cpu_ptr(NULL) computesNULL + __per_cpu_offset[cpu], resulting in a page fault. BUG: unable to handle page fault for address: ffff8880e6659018 #PF: supervisor write access in kernel mode #PF: error_code(0x0002) - not-present page PGD 68bc067 P4D 68bc067 PUD 0 Oops: Oops: 0002 [#1] SMP KASAN PTI RIP: 0010:iptunnel_xmit (./include/net/ip_tunnels.h:664 net/ipv4/ip_tunnel_core.c:89) Call Trace: ip_tunnel_xmit (net/ipv4/ip_tunnel.c:847) __gre_xmit (net/ipv4/ip_gre.c:478) gre_tap_xmit (net/ipv4/ip_gre.c:779) teql_master_xmit (net/sched/sch_teql.c:319) dev_hard_start_xmit (net/core/dev.c:3887) sch_direct_xmit (net/sched/sch_generic.c:347) __dev_queue_xmit (net/core/dev.c:4802) neigh_direct_output (net/core/neighbour.c:1660) ip_finish_output2 (net/ipv4/ip_output.c:237) __ip_finish_output.part.0 (net/ipv4/ip_output.c:315) ip_mc_output (net/ipv4/ip_output.c:369) ip_send_skb (net/ipv4/ip_output.c:1508) udp_send_skb (net/ipv4/udp.c:1195) udp_sendmsg (net/ipv4/udp.c:1485) inet_sendmsg (net/ipv4/af_inet.c:859) __sys_sendto (net/socket.c:2206)Fix this by setting skb->dev = slave before callingnetdev_start_xmit(), so that tunnel xmit functions see the correctslave device with properly allocated tstats.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default < 6.4.0-150700.53.37.1 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:net: vxlan: fix nd_tbl NULL dereference when IPv6 is disabledWhen booting with the 'ipv6.disable=1' parameter, the nd_tbl is neverinitialized because inet6_init() exits before ndisc_init() is calledwhich initializes it. If an IPv6 packet is injected into the interface,route_shortcircuit() is called and a NULL pointer dereference happens onneigh_lookup(). BUG: kernel NULL pointer dereference, address: 0000000000000380 Oops: Oops: 0000 [#1] SMP NOPTI [...] RIP: 0010:neigh_lookup+0x20/0x270 [...] Call Trace: vxlan_xmit+0x638/0x1ef0 [vxlan] dev_hard_start_xmit+0x9e/0x2e0 __dev_queue_xmit+0xbee/0x14e0 packet_sendmsg+0x116f/0x1930 __sys_sendto+0x1f5/0x200 __x64_sys_sendto+0x24/0x30 do_syscall_64+0x12f/0x1590 entry_SYSCALL_64_after_hwframe+0x76/0x7eFix this by adding an early check on route_shortcircuit() when protocolis ETH_P_IPV6. Note that ipv6_mod_enabled() cannot be used here becauseVXLAN can be built-in even when IPv6 is built as a module.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default < 6.4.0-150700.53.37.1 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:icmp: fix NULL pointer dereference in icmp_tag_validation()icmp_tag_validation() unconditionally dereferences the result ofrcu_dereference(inet_protos[proto]) without checking for NULL.The inet_protos[] array is sparse -- only about 15 of 256 protocolnumbers have registered handlers. When ip_no_pmtu_disc is set to 3(hardened PMTU mode) and the kernel receives an ICMP FragmentationNeeded error with a quoted inner IP header containing an unregisteredprotocol number, the NULL dereference causes a kernel panic insoftirq context. Oops: general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017] RIP: 0010:icmp_unreach (net/ipv4/icmp.c:1085 net/ipv4/icmp.c:1143) Call Trace: icmp_rcv (net/ipv4/icmp.c:1527) ip_protocol_deliver_rcu (net/ipv4/ip_input.c:207) ip_local_deliver_finish (net/ipv4/ip_input.c:242) ip_local_deliver (net/ipv4/ip_input.c:262) ip_rcv (net/ipv4/ip_input.c:573) __netif_receive_skb_one_core (net/core/dev.c:6164) process_backlog (net/core/dev.c:6628) handle_softirqs (kernel/softirq.c:561) Add a NULL check before accessing icmp_strict_tag_validation. If theprotocol has no registered handler, return false since it cannotperform strict tag validation.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default < 6.4.0-150700.53.37.1 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:rxrpc: Only put the call ref if one was acquiredrxrpc_input_packet_on_conn() can process a to-client packet after thecurrent client call on the channel has already been torn down. In thatcase chan->call is NULL, rxrpc_try_get_call() returns NULL and there isno reference to drop.The client-side implicit-end error path does not account for that andunconditionally calls rxrpc_put_call(). This turns a protocol errorpath into a kernel crash instead of rejecting the packet.Only drop the call reference if one was actually acquired. Keep theexisting protocol error handling unchanged.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: Calling NSS-backed functions that support caching via nscd may call the nscd client side code and in the GNU C Library version 2.36 under high load on x86_64 systems, the client may call memcmp on inputs that are concurrently modified by other processes or threads and crash.The nscd client in the GNU C Library uses the memcmp function with inputs that may be concurrently modified by another thread, potentially resulting in spurious cache misses, which in itself is not a security issue. However in the GNU C Library version 2.36 an optimized implementation of memcmp was introduced for x86_64 which could crash when invoked with such undefined behaviour, turning this into a potential crash of the nscd client and the application that uses it. This implementation was backported to the 2.35 branch, making the nscd client in that branch vulnerable as well. Subsequently, the fix for this issue was backported to all vulnerable branches in the GNU C Library repository.It is advised that distributions that may have cherry-picked the memcpy SSE2 optimization in their copy of the GNU C Library, also apply the fix to avoid the potential crash in the nscd client.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- glibc > 0-0 (version in image is 2.38-150600.14.46.1).
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Description: In MIT Kerberos 5 (aka krb5) before 1.22.3, there is a NULL pointer dereference if an application calls gss_accept_sec_context() on a system with a NegoEx mechanism registered in /etc/gss/mech. An unauthenticated remote attacker can trigger this, causing the process to terminate in parse_nego_message.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- krb5 > 0-0 (version in image is 1.20.1-150600.11.14.1).
-
Description: In MIT Kerberos 5 (aka krb5) before 1.22.3, there is an integer underflow and resultant out-of-bounds read if an application calls gss_accept_sec_context() on a system with a NegoEx mechanism registered in /etc/gss/mech. An unauthenticated remote attacker can trigger this, possibly causing the process to terminate in parse_message.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- krb5 > 0-0 (version in image is 1.20.1-150600.11.14.1).
-
Description: lxml is a library for processing XML and HTML in the Python language. Prior to 6.1.0, using either of the two parsers in the default configuration (with resolve_entities=True) allows untrusted XML input to read local files. Setting the resolve_entities option explicitly to resolve_entities='internal' or resolve_entities=False disables the local file access. This vulnerability is fixed in 6.1.0.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- python3-lxml > 0-0 (version in image is 4.9.1-150500.3.4.3).
-
Description: Calling the scanf family of functions with a %mc (malloc'd character match) in the GNU C Library version 2.7 to version 2.43 with a format width specifier with an explicit width greater than 1024 could result in a one byte heap buffer overflow.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- glibc > 0-0 (version in image is 2.38-150600.14.46.1).
-
Description: Unknown.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- curl > 0-0 (version in image is 8.14.1-150700.7.14.1).
-
Description: Unknown.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- curl > 0-0 (version in image is 8.14.1-150700.7.14.1).
-
Description: Unknown.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- curl > 0-0 (version in image is 8.14.1-150700.7.14.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:ksmbd: ipc: fix use-after-free in ipc_msg_send_requestipc_msg_send_request() waits for a generic netlink reply using anipc_msg_table_entry on the stack. The generic netlink handler(handle_generic_event()/handle_response()) fills entry->response underipc_msg_table_lock, but ipc_msg_send_request() used to validate and freeentry->response without holding the same lock.Under high concurrency this allows a race where handle_response() iscopying data into entry->response while ipc_msg_send_request() has justfreed it, leading to a slab-use-after-free reported by KASAN inhandle_generic_event(): BUG: KASAN: slab-use-after-free in handle_generic_event+0x3c4/0x5f0 [ksmbd] Write of size 12 at addr ffff888198ee6e20 by task pool/109349 ... Freed by task: kvfree ipc_msg_send_request [ksmbd] ksmbd_rpc_open -> ksmbd_session_rpc_open [ksmbd]Fix by:- Taking ipc_msg_table_lock in ipc_msg_send_request() while validating entry->response, freeing it when invalid, and removing the entry from ipc_msg_table.- Returning the final entry->response pointer to the caller only after the hash entry is removed under the lock.- Returning NULL in the error path, preserving the original API semantics.This makes all accesses to entry->response consistent withhandle_response(), which already updates and fills the response bufferunder ipc_msg_table_lock, and closes the race that allowed the UAF.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:nvme: fix admin request_queue lifetimeThe namespaces can access the controller's admin request_queue, andstale references on the namespaces may exist after tearing down thecontroller. Ensure the admin request_queue is active by moving thecontroller's 'put' to after all controller references have been releasedto ensure no one is can access the request_queue. This fixes a reporteduse-after-free bug: BUG: KASAN: slab-use-after-free in blk_queue_enter+0x41c/0x4a0 Read of size 8 at addr ffff88c0a53819f8 by task nvme/3287 CPU: 67 UID: 0 PID: 3287 Comm: nvme Tainted: G E 6.13.2-ga1582f1a031e #15 Tainted: [E]=UNSIGNED_MODULE Hardware name: Jabil /EGS 2S MB1, BIOS 1.00 06/18/2025 Call Trace: dump_stack_lvl+0x4f/0x60 print_report+0xc4/0x620 ? _raw_spin_lock_irqsave+0x70/0xb0 ? _raw_read_unlock_irqrestore+0x30/0x30 ? blk_queue_enter+0x41c/0x4a0 kasan_report+0xab/0xe0 ? blk_queue_enter+0x41c/0x4a0 blk_queue_enter+0x41c/0x4a0 ? __irq_work_queue_local+0x75/0x1d0 ? blk_queue_start_drain+0x70/0x70 ? irq_work_queue+0x18/0x20 ? vprintk_emit.part.0+0x1cc/0x350 ? wake_up_klogd_work_func+0x60/0x60 blk_mq_alloc_request+0x2b7/0x6b0 ? __blk_mq_alloc_requests+0x1060/0x1060 ? __switch_to+0x5b7/0x1060 nvme_submit_user_cmd+0xa9/0x330 nvme_user_cmd.isra.0+0x240/0x3f0 ? force_sigsegv+0xe0/0xe0 ? nvme_user_cmd64+0x400/0x400 ? vfs_fileattr_set+0x9b0/0x9b0 ? cgroup_update_frozen_flag+0x24/0x1c0 ? cgroup_leave_frozen+0x204/0x330 ? nvme_ioctl+0x7c/0x2c0 blkdev_ioctl+0x1a8/0x4d0 ? blkdev_common_ioctl+0x1930/0x1930 ? fdget+0x54/0x380 __x64_sys_ioctl+0x129/0x190 do_syscall_64+0x5b/0x160 entry_SYSCALL_64_after_hwframe+0x4b/0x53 RIP: 0033:0x7f765f703b0b Code: ff ff ff 85 c0 79 9b 49 c7 c4 ff ff ff ff 5b 5d 4c 89 e0 41 5c c3 66 0f 1f 84 00 00 00 00 00 f3 0f 1e fa b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d dd 52 0f 00 f7 d8 64 89 01 48 RSP: 002b:00007ffe2cefe808 EFLAGS: 00000202 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007ffe2cefe860 RCX: 00007f765f703b0b RDX: 00007ffe2cefe860 RSI: 00000000c0484e41 RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000000 R10: 00007f765f611d50 R11: 0000000000000202 R12: 0000000000000003 R13: 00000000c0484e41 R14: 0000000000000001 R15: 00007ffe2cefea60
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:s390/pci: Avoid deadlock between PCI error recovery and mlx5 crdumpDo not block PCI config accesses through pci_cfg_access_lock() whenexecuting the s390 variant of PCI error recovery: Acquire justdevice_lock() instead of pci_dev_lock() as powerpc's EEH andgenerig PCI AER processing do.During error recovery testing a pair of tasks was reported to be hung:mlx5_core 0000:00:00.1: mlx5_health_try_recover:338:(pid 5553): health recovery flow aborted, PCI reads still not workingINFO: task kmcheck:72 blocked for more than 122 seconds. Not tainted 5.14.0-570.12.1.bringup7.el9.s390x #1"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.task:kmcheck state:D stack:0 pid:72 tgid:72 ppid:2 flags:0x00000000Call Trace: [<000000065256f030>] __schedule+0x2a0/0x590 [<000000065256f356>] schedule+0x36/0xe0 [<000000065256f572>] schedule_preempt_disabled+0x22/0x30 [<0000000652570a94>] __mutex_lock.constprop.0+0x484/0x8a8 [<000003ff800673a4>] mlx5_unload_one+0x34/0x58 [mlx5_core] [<000003ff8006745c>] mlx5_pci_err_detected+0x94/0x140 [mlx5_core] [<0000000652556c5a>] zpci_event_attempt_error_recovery+0xf2/0x398 [<0000000651b9184a>] __zpci_event_error+0x23a/0x2c0INFO: task kworker/u1664:6:1514 blocked for more than 122 seconds. Not tainted 5.14.0-570.12.1.bringup7.el9.s390x #1"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.task:kworker/u1664:6 state:D stack:0 pid:1514 tgid:1514 ppid:2 flags:0x00000000Workqueue: mlx5_health0000:00:00.0 mlx5_fw_fatal_reporter_err_work [mlx5_core]Call Trace: [<000000065256f030>] __schedule+0x2a0/0x590 [<000000065256f356>] schedule+0x36/0xe0 [<0000000652172e28>] pci_wait_cfg+0x80/0xe8 [<0000000652172f94>] pci_cfg_access_lock+0x74/0x88 [<000003ff800916b6>] mlx5_vsc_gw_lock+0x36/0x178 [mlx5_core] [<000003ff80098824>] mlx5_crdump_collect+0x34/0x1c8 [mlx5_core] [<000003ff80074b62>] mlx5_fw_fatal_reporter_dump+0x6a/0xe8 [mlx5_core] [<0000000652512242>] devlink_health_do_dump.part.0+0x82/0x168 [<0000000652513212>] devlink_health_report+0x19a/0x230 [<000003ff80075a12>] mlx5_fw_fatal_reporter_err_work+0xba/0x1b0 [mlx5_core]No kernel log of the exact same error with an upstream kernel isavailable - but the very same deadlock situation can be constructed there,too:- task: kmcheck mlx5_unload_one() tries to acquire devlink lock while the PCI error recovery code has set pdev->block_cfg_access by way of pci_cfg_access_lock()- task: kworker mlx5_crdump_collect() tries to set block_cfg_access through pci_cfg_access_lock() while devlink_health_report() had acquired the devlink lock.A similar deadlock situation can be reproduced by requesting acrdump with > devlink health dump show pci/ reporter fw_fatalwhile PCI error recovery is executed on the same physical functionby mlx5_core's pci_error_handlers. On s390 this can be injected with > zpcictl --reset-fw Tests with this patch failed to reproduce that second deadlock situation,the devlink command is rejected with "kernel answers: Permission denied" -and we get a kernel log message of:mlx5_core 1ed0:00:00.1: mlx5_crdump_collect:50:(pid 254382): crdump: failed to lock vsc gw err -5because the config read of VSC_SEMAPHORE is rejected by the underlyinghardware.Two prior attempts to address this issue have been discussed andultimately rejected [see link], with the primary argument that s390'simplementation of PCI error recovery is imposing restrictions thatneither powerpc's EEH nor PCI AER handling need. Tests show that PCIerror recovery on s390 is running to completion even without blockingaccess to PCI config space.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:scsi: target: iscsi: Fix use-after-free in iscsit_dec_session_usage_count()In iscsit_dec_session_usage_count(), the function calls complete() whileholding the sess->session_usage_lock. Similar to the connection usage countlogic, the waiter signaled by complete() (e.g., in the session releasepath) may wake up and free the iscsit_session structure immediately.This creates a race condition where the current thread may attempt toexecute spin_unlock_bh() on a session structure that has already beendeallocated, resulting in a KASAN slab-use-after-free.To resolve this, release the session_usage_lock before calling complete()to ensure all dereferences of the sess pointer are finished before thewaiter is allowed to proceed with deallocation.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default < 6.4.0-150700.53.37.1 (version in image is 6.4.0-150700.53.34.1).
-
Description: pip prior to version 26.1 would run self-update check functionality after installing wheel files which required importing well-known Python modules names. These module imports were intentionally deferred to increase startup time of the pip CLI. The patch changes self-update functionality to run before wheels are installed to prevent newly-installed modules from being imported shortly after the installation of a wheel package. Users should still review package contents prior to installation.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- python3 > 0-0 (version in image is 3.6.15-150300.10.109.1).
-
Description: Calling the ungetwc function on a FILE stream with wide characters encoded in a character set that has overlaps between its single byte and multi-byte character encodings, in the GNU C Library version 2.43 or earlier, may result in an attempt to read bytes before an allocated buffer, potentially resulting in unintentional disclosure of neighboring data in the heap, or a program crash.A bug in the wide character pushback implementation (_IO_wdefault_pbackfail in libio/wgenops.c) causes ungetwc() to operate on the regular character buffer (fp->_IO_read_ptr) instead of the actual wide-stream read pointer (fp->_wide_data->_IO_read_ptr). The program crash may happen in cases where fp->_IO_read_ptr is not initialized and hence points to NULL. The buffer under-read requires a special situation where the input character encoding is such that there are overlaps between single byte representations and multibyte representations in that encoding, resulting in spurious matches. The spurious match case is not possible in the standard Unicode character sets.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- glibc > 0-0 (version in image is 2.38-150600.14.46.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:bpf: Fix stack-out-of-bounds write in devmapget_upper_ifindexes() iterates over all upper devices and writes theirindices into an array without checking bounds.Also the callers assume that the max number of upper devices isMAX_NEST_DEV and allocate excluded_devices[1+MAX_NEST_DEV] on the stack,but that assumption is not correct and the number of upper devices couldbe larger than MAX_NEST_DEV (e.g., many macvlans), causing astack-out-of-bounds write.Add a max parameter to get_upper_ifindexes() to avoid the issue.When there are too many upper devices, return -EOVERFLOW and abort theredirect.To reproduce, create more than MAX_NEST_DEV(8) macvlans on a device withan XDP program attached using BPF_F_BROADCAST | BPF_F_EXCLUDE_INGRESS.Then send a packet to the device to trigger the XDP redirect path.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:net/sched: sch_netem: fix out-of-bounds access in packet corruptionIn netem_enqueue(), the packet corruption logic usesget_random_u32_below(skb_headlen(skb)) to select an index formodifying skb->data. When an AF_PACKET TX_RING sends fully non-linearpackets over an IPIP tunnel, skb_headlen(skb) evaluates to 0.Passing 0 to get_random_u32_below() takes the variable-ceil slow pathwhich returns an unconstrained 32-bit random integer. Using thisunconstrained value as an offset into skb->data results in anout-of-bounds memory access.Fix this by verifying skb_headlen(skb) is non-zero before attemptingto corrupt the linear data area. Fully non-linear packets will silentlybypass the corruption logic.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:rxrpc: only handle RESPONSE during service challengeOnly process RESPONSE packets while the service connection is still inRXRPC_CONN_SERVICE_CHALLENGING. Check that state under state_lock beforerunning response verification and security initialization, then use a localsecured flag to decide whether to queue the secured-connection work afterthe state transition. This keeps duplicate or late RESPONSE packets fromre-running the setup path and removes the unlocked post-transition statetest.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:scsi: ses: Handle enclosure with just a primary component gracefullyThis reverts commit 3fe97ff3d949 ("scsi: ses: Don't attach if enclosurehas no components") and introduces proper handling of case where there areno detected secondary components, but primary component (enumerated innum_enclosures) does exist. That fix was originally proposed by Ding Hui.Completely ignoring devices that have one primary enclosure and nosecondary one results in ses_intf_add() bailing completely scsi 2:0:0:254: enclosure has no enumerated components scsi 2:0:0:254: Failed to bind enclosure -12ven in valid configurations sucheven on valid configurations with 1 primary and 0 secondary enclosures asbelow: # sg_ses /dev/sg0 3PARdata SES 3321 Supported diagnostic pages: Supported Diagnostic Pages [sdp] [0x0] Configuration (SES) [cf] [0x1] Short Enclosure Status (SES) [ses] [0x8] # sg_ses -p cf /dev/sg0 3PARdata SES 3321 Configuration diagnostic page: number of secondary subenclosures: 0 generation code: 0x0 enclosure descriptor list Subenclosure identifier: 0 [primary] relative ES process id: 0, number of ES processes: 1 number of type descriptor headers: 1 enclosure logical identifier (hex): 20000002ac02068d enclosure vendor: 3PARdata product: VV rev: 3321 type descriptor header and text list Element type: Unspecified, subenclosure id: 0 number of possible elements: 1The changelog for the original fix follows=====We can get a crash when disconnecting the iSCSI session,the call trace like this: [ffff00002a00fb70] kfree at ffff00000830e224 [ffff00002a00fba0] ses_intf_remove at ffff000001f200e4 [ffff00002a00fbd0] device_del at ffff0000086b6a98 [ffff00002a00fc50] device_unregister at ffff0000086b6d58 [ffff00002a00fc70] __scsi_remove_device at ffff00000870608c [ffff00002a00fca0] scsi_remove_device at ffff000008706134 [ffff00002a00fcc0] __scsi_remove_target at ffff0000087062e4 [ffff00002a00fd10] scsi_remove_target at ffff0000087064c0 [ffff00002a00fd70] __iscsi_unbind_session at ffff000001c872c4 [ffff00002a00fdb0] process_one_work at ffff00000810f35c [ffff00002a00fe00] worker_thread at ffff00000810f648 [ffff00002a00fe70] kthread at ffff000008116e98In ses_intf_add, components count could be 0, and kcalloc 0 size scomp,but not saved in edev->component[i].scratchIn this situation, edev->component[0].scratch is an invalid pointer,when kfree it in ses_intf_remove_enclosure, a crash like above would happenThe call trace also could be other random cases when kfree cannot catchthe invalid pointerWe should not use edev->component[] array when the components count is 0We also need check index when use edev->component[] array inses_enclosure_data_process=====
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:fs/xattr: missing fdput() in fremovexattr error pathIn the Linux kernel, the fremovexattr() syscall calls fdget() to acquire afile reference but returns early without calling fdput() whenstrncpy_from_user() fails on the name argument. In multi-threaded processeswhere fdget() takes the slow path, this permanently leaks onefile reference per call, pinning the struct file and associated kernelobjects in memory. An unprivileged local user can exploit this to causekernel memory exhaustion. The issue was inadvertently fixed by commita71874379ec8 ("xattr: switch to CLASS(fd)").
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:virtiofs: use pages instead of pointer for kernel direct IOWhen trying to insert a 10MB kernel module kept in a virtio-fs with cachedisabled, the following warning was reported: ------------[ cut here ]------------ WARNING: CPU: 1 PID: 404 at mm/page_alloc.c:4551 ...... Modules linked in: CPU: 1 PID: 404 Comm: insmod Not tainted 6.9.0-rc5+ #123 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996) ...... RIP: 0010:__alloc_pages+0x2bf/0x380 ...... Call Trace: ? __warn+0x8e/0x150 ? __alloc_pages+0x2bf/0x380 __kmalloc_large_node+0x86/0x160 __kmalloc+0x33c/0x480 virtio_fs_enqueue_req+0x240/0x6d0 virtio_fs_wake_pending_and_unlock+0x7f/0x190 queue_request_and_unlock+0x55/0x60 fuse_simple_request+0x152/0x2b0 fuse_direct_io+0x5d2/0x8c0 fuse_file_read_iter+0x121/0x160 __kernel_read+0x151/0x2d0 kernel_read+0x45/0x50 kernel_read_file+0x1a9/0x2a0 init_module_from_file+0x6a/0xe0 idempotent_init_module+0x175/0x230 __x64_sys_finit_module+0x5d/0xb0 x64_sys_call+0x1c3/0x9e0 do_syscall_64+0x3d/0xc0 entry_SYSCALL_64_after_hwframe+0x4b/0x53 ...... ---[ end trace 0000000000000000 ]---The warning is triggered as follows:1) syscall finit_module() handles the module insertion and it invokeskernel_read_file() to read the content of the module first.2) kernel_read_file() allocates a 10MB buffer by using vmalloc() andpasses it to kernel_read(). kernel_read() constructs a kvec iter byusing iov_iter_kvec() and passes it to fuse_file_read_iter().3) virtio-fs disables the cache, so fuse_file_read_iter() invokesfuse_direct_io(). As for now, the maximal read size for kvec iter isonly limited by fc->max_read. For virtio-fs, max_read is UINT_MAX, sofuse_direct_io() doesn't split the 10MB buffer. It saves the address andthe size of the 10MB-sized buffer in out_args[0] of a fuse request andpasses the fuse request to virtio_fs_wake_pending_and_unlock().4) virtio_fs_wake_pending_and_unlock() uses virtio_fs_enqueue_req() toqueue the request. Because virtiofs need DMA-able address, sovirtio_fs_enqueue_req() uses kmalloc() to allocate a bounce buffer forall fuse args, copies these args into the bounce buffer and passed thephysical address of the bounce buffer to virtiofsd. The total length ofthese fuse args for the passed fuse request is about 10MB, socopy_args_to_argbuf() invokes kmalloc() with a 10MB size parameter andit triggers the warning in __alloc_pages(): if (WARN_ON_ONCE_GFP(order > MAX_PAGE_ORDER, gfp)) return NULL;5) virtio_fs_enqueue_req() will retry the memory allocation in akworker, but it won't help, because kmalloc() will always return NULLdue to the abnormal size and finit_module() will hang forever.A feasible solution is to limit the value of max_read for virtio-fs, sothe length passed to kmalloc() will be limited. However it will affectthe maximal read size for normal read. And for virtio-fs write initiatedfrom kernel, it has the similar problem but now there is no way to limitfc->max_write in kernel.So instead of limiting both the values of max_read and max_write inkernel, introducing use_pages_for_kvec_io in fuse_conn and setting it astrue in virtiofs. When use_pages_for_kvec_io is enabled, fuse will usepages instead of pointer to pass the KVEC_IO data.After switching to pages for KVEC_IO data, these pages will be used forDMA through virtio-fs. If these pages are backed by vmalloc(),{flush|invalidate}_kernel_vmap_range() are necessary to flush orinvalidate the cache before the DMA operation. So add two new fields infuse_args_pages to record the base address of vmalloc area and thecondition indicating whether invalidation is needed. Perform the flushin fuse_get_user_pages() for write operations and the invalidation infuse_release_user_pages() for read operations.It may seem necessary to introduce another fie---truncated---
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:Bluetooth: hci_core: Disable works on hci_unregister_devThis make use of disable_work_* on hci_unregister_dev since the hci_dev isabout to be freed new submissions are not disarable.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:md/md-bitmap: Synchronize bitmap_get_stats() with bitmap lifetimeAfter commit ec6bb299c7c3 ("md/md-bitmap: add 'sync_size' into structmd_bitmap_stats"), following panic is reported:Oops: general protection fault, probably for non-canonical addressRIP: 0010:bitmap_get_stats+0x2b/0xa0Call Trace: md_seq_show+0x2d2/0x5b0 seq_read_iter+0x2b9/0x470 seq_read+0x12f/0x180 proc_reg_read+0x57/0xb0 vfs_read+0xf6/0x380 ksys_read+0x6c/0xf0 do_syscall_64+0x82/0x170 entry_SYSCALL_64_after_hwframe+0x76/0x7eRoot cause is that bitmap_get_stats() can be called at anytime if mddevis still there, even if bitmap is destroyed, or not fully initialized.Deferenceing bitmap in this case can crash the kernel. Meanwhile, theabove commit start to deferencing bitmap->storage, make the problemeasier to trigger.Fix the problem by protecting bitmap_get_stats() with bitmap_info.mutex.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:drm/xe/vf: Perform early GT MMIO initialization to read GMDIDVFs need to communicate with the GuC to obtain the GMDID valueand existing GuC functions used for that assume that the GT hasit's MMIO members already setup. However, due to recent refactoringthe gt->mmio is initialized later, and any attempt by the VF to usexe_mmio_read|write() from GuC functions will lead to NPD crash dueto unset MMIO register address:[] xe 0000:00:02.1: [drm] Running in SR-IOV VF mode[] xe 0000:00:02.1: [drm] GT0: sending H2G MMIO 0x5507[] BUG: unable to handle page fault for address: 0000000000190240Since we are already tweaking the id and type of the primary GT tomimic it's a Media GT before initializing the GuC communication,we can also call xe_gt_mmio_init() to perform early setup of thegt->mmio which will make those GuC functions work again.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:wifi: mac80211: reject VHT opmode for unsupported channel widthsVHT operating mode notifications are not defined for channel widthsbelow 20 MHz. In particular, 5 MHz and 10 MHz are not valid under theVHT specification and must be rejected.Without this check, malformed notifications using these widths mayreach ieee80211_chan_width_to_rx_bw(), leading to a WARN_ON due toinvalid input. This issue was reported by syzbot.Reject these unsupported widths early in sta_link_apply_parameters()when opmode_notif is used. The accepted set includes 20, 40, 80, 160,and 80+80 MHz, which are valid for VHT. While 320 MHz is not definedfor VHT, it is allowed to avoid rejecting HE or EHT clients that maystill send a VHT opmode notification.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:xfrm: state: initialize state_ptrs earlier in xfrm_state_findIn case of preemption, xfrm_state_look_at will find a differentpcpu_id and look up states for that other CPU. If we matched a statefor CPU2 in the state_cache while the lookup started on CPU1, we willjump to "found", but the "best" state that we got will be ignored andwe will enter the "acquire" block. This block uses state_ptrs, whichisn't initialized at this point.Let's initialize state_ptrs just after taking rcu_read_lock. This willalso prevent a possible misuse in the future, if someone adjusts thisfunction.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:iommufd: Prevent ALIGN() overflowWhen allocating IOVA the candidate range gets aligned to the targetalignment. If the range is close to ULONG_MAX then the ALIGN() canwrap resulting in a corrupted iova.Open code the ALIGN() using get_add_overflow() to prevent this.This simplifies the checks as we don't need to check for length earliereither.Consolidate the two copies of this code under a single helper.This bug would allow userspace to create a mapping that overlaps with someother mapping or a reserved range.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:net: kcm: Fix race condition in kcm_unattach()syzbot found a race condition when kcm_unattach(psock)and kcm_release(kcm) are executed at the same time.kcm_unattach() is missing a check of the flagkcm->tx_stopped before calling queue_work().If the kcm has a reserved psock, kcm_unattach() might get executedbetween cancel_work_sync() and unreserve_psock() in kcm_release(),requeuing kcm->tx_work right before kcm gets freed in kcm_done().Remove kcm->tx_stopped and replace it by the lesserror-prone disable_work_sync().
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:LoongArch: BPF: Fix jump offset calculation in tailcallThe extra pass of bpf_int_jit_compile() skips JIT context initializationwhich essentially skips offset calculation leaving out_offset = -1, sothe jmp_offset in emit_bpf_tail_call is calculated by"#define jmp_offset (out_offset - (cur_offset))"is a negative number, which is wrong. The final generated assembly areas follow.54: bgeu $a2, $t1, -8 # 0x0000004c58: addi.d $a6, $s5, -15c: bltz $a6, -16 # 0x0000004c60: alsl.d $t2, $a2, $a1, 0x364: ld.d $t2, $t2, 26468: beq $t2, $zero, -28 # 0x0000004cBefore apply this patch, the follow test case will reveal soft lock issues.cd tools/testing/selftests/bpf/./test_progs --allow=tailcalls/tailcall_bpf2bpf_1dmesg:watchdog: BUG: soft lockup - CPU#2 stuck for 26s! [test_progs:25056]
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:iio: light: as73211: Ensure buffer holes are zeroedGiven that the buffer is copied to a kfifo that ultimately user spacecan read, ensure we zero it.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:mm/mremap: fix WARN with uffd that has remap events disabledRegistering userfaultd on a VMA that spans at least one PMD and thenmremap()'ing that VMA can trigger a WARN when recovering from a failedpage table move due to a page table allocation error.The code ends up doing the right thing (recurse, avoiding moving actualpage tables), but triggering that WARN is unpleasant:WARNING: CPU: 2 PID: 6133 at mm/mremap.c:357 move_normal_pmd mm/mremap.c:357 [inline]WARNING: CPU: 2 PID: 6133 at mm/mremap.c:357 move_pgt_entry mm/mremap.c:595 [inline]WARNING: CPU: 2 PID: 6133 at mm/mremap.c:357 move_page_tables+0x3832/0x44a0 mm/mremap.c:852Modules linked in:CPU: 2 UID: 0 PID: 6133 Comm: syz.0.19 Not tainted 6.17.0-rc1-syzkaller-00004-g53e760d89498 #0 PREEMPT(full)Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014RIP: 0010:move_normal_pmd mm/mremap.c:357 [inline]RIP: 0010:move_pgt_entry mm/mremap.c:595 [inline]RIP: 0010:move_page_tables+0x3832/0x44a0 mm/mremap.c:852Code: ...RSP: 0018:ffffc900037a76d8 EFLAGS: 00010293RAX: 0000000000000000 RBX: 0000000032930007 RCX: ffffffff820c6645RDX: ffff88802e56a440 RSI: ffffffff820c7201 RDI: 0000000000000007RBP: ffff888037728fc0 R08: 0000000000000007 R09: 0000000000000000R10: 0000000032930007 R11: 0000000000000000 R12: 0000000000000000R13: ffffc900037a79a8 R14: 0000000000000001 R15: dffffc0000000000FS: 000055556316a500(0000) GS:ffff8880d68bc000(0000) knlGS:0000000000000000CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033CR2: 0000001b30863fff CR3: 0000000050171000 CR4: 0000000000352ef0Call Trace: copy_vma_and_data+0x468/0x790 mm/mremap.c:1215 move_vma+0x548/0x1780 mm/mremap.c:1282 mremap_to+0x1b7/0x450 mm/mremap.c:1406 do_mremap+0xfad/0x1f80 mm/mremap.c:1921 __do_sys_mremap+0x119/0x170 mm/mremap.c:1977 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7fRIP: 0033:0x7f00d0b8ebe9Code: ...RSP: 002b:00007ffe5ea5ee98 EFLAGS: 00000246 ORIG_RAX: 0000000000000019RAX: ffffffffffffffda RBX: 00007f00d0db5fa0 RCX: 00007f00d0b8ebe9RDX: 0000000000400000 RSI: 0000000000c00000 RDI: 0000200000000000RBP: 00007ffe5ea5eef0 R08: 0000200000c00000 R09: 0000000000000000R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000002R13: 00007f00d0db5fa0 R14: 00007f00d0db5fa0 R15: 0000000000000005 The underlying issue is that we recurse during the original page tablemove, but not during the recovery move.Fix it by checking for both VMAs and performing the check before thepmd_none() sanity check.Add a new helper where we perform+document that check for the PMD and PUDlevel.Thanks to Harry for bisecting.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:mm/debug_vm_pgtable: clear page table entries at destroy_args()The mm/debug_vm_pagetable test allocates manually page table entries forthe tests it runs, using also its manually allocated mm_struct. That initself is ok, but when it exits, at destroy_args() it fails to clear thoseentries with the *_clear functions.The problem is that leaves stale entries. If another process allocates anmm_struct with a pgd at the same address, it may end up running into thestale entry. This is happening in practice on a debug kernel withCONFIG_DEBUG_VM_PGTABLE=y, for example this is the output with some extradebugging I added (it prints a warning trace if pgtables_bytes goesnegative, in addition to the warning at check_mm() function):[ 2.539353] debug_vm_pgtable: [get_random_vaddr ]: random_vaddr is 0x7ea247140000[ 2.539366] kmem_cache info[ 2.539374] kmem_cachep 0x000000002ce82385 - freelist 0x0000000000000000 - offset 0x508[ 2.539447] debug_vm_pgtable: [init_args ]: args->mm is 0x000000002267cc9e(...)[ 2.552800] WARNING: CPU: 5 PID: 116 at include/linux/mm.h:2841 free_pud_range+0x8bc/0x8d0[ 2.552816] Modules linked in:[ 2.552843] CPU: 5 UID: 0 PID: 116 Comm: modprobe Not tainted 6.12.0-105.debug_vm2.el10.ppc64le+debug #1 VOLUNTARY[ 2.552859] Hardware name: IBM,9009-41A POWER9 (architected) 0x4e0202 0xf000005 of:IBM,FW910.00 (VL910_062) hv:phyp pSeries[ 2.552872] NIP: c0000000007eef3c LR: c0000000007eef30 CTR: c0000000003d8c90[ 2.552885] REGS: c0000000622e73b0 TRAP: 0700 Not tainted (6.12.0-105.debug_vm2.el10.ppc64le+debug)[ 2.552899] MSR: 800000000282b033 CR: 24002822 XER: 0000000a[ 2.552954] CFAR: c0000000008f03f0 IRQMASK: 0[ 2.552954] GPR00: c0000000007eef30 c0000000622e7650 c000000002b1ac00 0000000000000001[ 2.552954] GPR04: 0000000000000008 0000000000000000 c0000000007eef30 ffffffffffffffff[ 2.552954] GPR08: 00000000ffff00f5 0000000000000001 0000000000000048 0000000000004000[ 2.552954] GPR12: 00000003fa440000 c000000017ffa300 c0000000051d9f80 ffffffffffffffdb[ 2.552954] GPR16: 0000000000000000 0000000000000008 000000000000000a 60000000000000e0[ 2.552954] GPR20: 4080000000000000 c0000000113af038 00007fffcf130000 0000700000000000[ 2.552954] GPR24: c000000062a6a000 0000000000000001 8000000062a68000 0000000000000001[ 2.552954] GPR28: 000000000000000a c000000062ebc600 0000000000002000 c000000062ebc760[ 2.553170] NIP [c0000000007eef3c] free_pud_range+0x8bc/0x8d0[ 2.553185] LR [c0000000007eef30] free_pud_range+0x8b0/0x8d0[ 2.553199] Call Trace:[ 2.553207] [c0000000622e7650] [c0000000007eef30] free_pud_range+0x8b0/0x8d0 (unreliable)[ 2.553229] [c0000000622e7750] [c0000000007f40b4] free_pgd_range+0x284/0x3b0[ 2.553248] [c0000000622e7800] [c0000000007f4630] free_pgtables+0x450/0x570[ 2.553274] [c0000000622e78e0] [c0000000008161c0] exit_mmap+0x250/0x650[ 2.553292] [c0000000622e7a30] [c0000000001b95b8] __mmput+0x98/0x290[ 2.558344] [c0000000622e7a80] [c0000000001d1018] exit_mm+0x118/0x1b0[ 2.558361] [c0000000622e7ac0] [c0000000001d141c] do_exit+0x2ec/0x870[ 2.558376] [c0000000622e7b60] [c0000000001d1ca8] do_group_exit+0x88/0x150[ 2.558391] [c0000000622e7bb0] [c0000000001d1db8] sys_exit_group+0x48/0x50[ 2.558407] [c0000000622e7be0] [c00000000003d810] system_call_exception+0x1e0/0x4c0[ 2.558423] [c0000000622e7e50] [c00000000000d05c] system_call_vectored_common+0x15c/0x2ec(...)[ 2.558892] ---[ end trace 0000000000000000 ]---[ 2.559022] BUG: Bad rss-counter state mm:000000002267cc9e type:MM_ANONPAGES val:1[ 2.559037] BUG: non-zero pgtables_bytes on freeing mm: -6144Here the modprobe process ended up with an allocated mm_struct from themm_struct slab that was used before by the debug_vm_pgtable test. That isnot a problem, since the mm_stru---truncated---
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:crypto: x86/aegis - Add missing error checksThe skcipher_walk functions can allocate memory and can fail, sochecking for errors is necessary.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:iommu/vt-d: debugfs: Fix legacy mode page table dump logicIn legacy mode, SSPTPTR is ignored if TT is not 00b or 01b. SSPTPTRmaybe uninitialized or zero in that case and may cause oops like: Oops: general protection fault, probably for non-canonical address 0xf00087d3f000f000: 0000 [#1] SMP NOPTI CPU: 2 UID: 0 PID: 786 Comm: cat Not tainted 6.16.0 #191 PREEMPT(voluntary) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.17.0-5.fc42 04/01/2014 RIP: 0010:pgtable_walk_level+0x98/0x150 RSP: 0018:ffffc90000f279c0 EFLAGS: 00010206 RAX: 0000000040000000 RBX: ffffc90000f27ab0 RCX: 000000000000001e RDX: 0000000000000003 RSI: f00087d3f000f000 RDI: f00087d3f0010000 RBP: ffffc90000f27a00 R08: ffffc90000f27a98 R09: 0000000000000002 R10: 0000000000000000 R11: 0000000000000000 R12: f00087d3f000f000 R13: 0000000000000000 R14: 0000000040000000 R15: ffffc90000f27a98 FS: 0000764566dcb740(0000) GS:ffff8881f812c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000764566d44000 CR3: 0000000109d81003 CR4: 0000000000772ef0 PKRU: 55555554 Call Trace: pgtable_walk_level+0x88/0x150 domain_translation_struct_show.isra.0+0x2d9/0x300 dev_domain_translation_struct_show+0x20/0x40 seq_read_iter+0x12d/0x490...Avoid walking the page table if TT is not 00b or 01b.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:Revert "ipmi: fix msg stack when IPMI is disconnected"This reverts commit c608966f3f9c2dca596967501d00753282b395fc.This patch has a subtle bug that can cause the IPMI driver to go into aninfinite loop if the BMC misbehaves in a certain way. Apparentlycertain BMCs do misbehave this way because several reports have come inrecently about this.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:futex: Don't leak robust_list pointer on exec racesys_get_robust_list() and compat_get_robust_list() use ptrace_may_access()to check if the calling task is allowed to access another task'srobust_list pointer. This check is racy against a concurrent exec() in thetarget process.During exec(), a task may transition from a non-privileged binary to aprivileged one (e.g., setuid binary) and its credentials/memory mappingsmay change. If get_robust_list() performs ptrace_may_access() beforethis transition, it may erroneously allow access to sensitive informationafter the target becomes privileged.A racy access allows an attacker to exploit a window during whichptrace_may_access() passes before a target process transitions to aprivileged state via exec().For example, consider a non-privileged task T that is about to execute asetuid-root binary. An attacker task A calls get_robust_list(T) while Tis still unprivileged. Since ptrace_may_access() checks permissionsbased on current credentials, it succeeds. However, if T begins execimmediately afterwards, it becomes privileged and may change its memorymappings. Because get_robust_list() proceeds to access T->robust_listwithout synchronizing with exec() it may read user-space pointers from anow-privileged process.This violates the intended post-exec access restrictions and couldexpose sensitive memory addresses or be used as a primitive in a largerexploit chain. Consequently, the race can lead to unauthorizeddisclosure of information across privilege boundaries and poses apotential security risk.Take a read lock on signal->exec_update_lock prior to invokingptrace_may_access() and accessing the robust_list/compat_robust_list.This ensures that the target task's exec state remains stable during thecheck, allowing for consistent and synchronized validation ofcredentials.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: A transient execution vulnerability within AMD CPUs may allow a local user-privileged attacker to leak data via the floating point divisor unit, potentially resulting in loss of confidentiality.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:ftrace: Fix softlockup in ftrace_module_enableA soft lockup was observed when loading amdgpu module.If a module has a lot of tracable functions, multiple callsto kallsyms_lookup can spend too much time in RCU criticalsection and with disabled preemption, causing kernel panic.This is the same issue that was fixed incommit d0b24b4e91fc ("ftrace: Prevent RCU stall on PREEMPT_VOLUNTARYkernels") and commit 42ea22e754ba ("ftrace: Add cond_resched() toftrace_graph_set_hash()").Fix it the same way by adding cond_resched() in ftrace_module_enable.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:media: nxp: imx8-isi: Fix streaming cleanup on releaseThe current implementation unconditionally callsmxc_isi_video_cleanup_streaming() in mxc_isi_video_release(). This canlead to situations where any release call (like from a simple"v4l2-ctl -l") may release a currently streaming queue when called onsuch a device.This is reproducible on an i.MX8MP board by streaming from an ISIcapture device using gstreamer: gst-launch-1.0 -v v4l2src device=/dev/videoX ! \ video/x-raw,format=GRAY8,width=1280,height=800,framerate=1/120 ! \ fakesinkWhile this stream is running, querying the caps of the same deviceprovokes the error state: v4l2-ctl -l -d /dev/videoXThis results in the following trace:[ 155.452152] ------------[ cut here ]------------[ 155.452163] WARNING: CPU: 0 PID: 1708 at drivers/media/platform/nxp/imx8-isi/imx8-isi-pipe.c:713 mxc_isi_pipe_irq_handler+0x19c/0x1b0 [imx8_isi][ 157.004248] Modules linked in: cfg80211 rpmsg_ctrl rpmsg_char rpmsg_tty virtio_rpmsg_bus rpmsg_ns rpmsg_core rfkill nft_ct nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nf_tables mcp251x6[ 157.053499] CPU: 0 UID: 0 PID: 1708 Comm: python3 Not tainted 6.15.4-00114-g1f61ca5cad76 #1 PREEMPT[ 157.064369] Hardware name: imx8mp_board_01 (DT)[ 157.068205] pstate: 400000c5 (nZcv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--)[ 157.075169] pc : mxc_isi_pipe_irq_handler+0x19c/0x1b0 [imx8_isi][ 157.081195] lr : mxc_isi_pipe_irq_handler+0x38/0x1b0 [imx8_isi][ 157.087126] sp : ffff800080003ee0[ 157.090438] x29: ffff800080003ee0 x28: ffff0000c3688000 x27: 0000000000000000[ 157.097580] x26: 0000000000000000 x25: ffff0000c1e7ac00 x24: ffff800081b5ad50[ 157.104723] x23: 00000000000000d1 x22: 0000000000000000 x21: ffff0000c25e4000[ 157.111866] x20: 0000000060000200 x19: ffff80007a0608d0 x18: 0000000000000000[ 157.119008] x17: ffff80006a4e3000 x16: ffff800080000000 x15: 0000000000000000[ 157.126146] x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000[ 157.133287] x11: 0000000000000040 x10: ffff0000c01445f0 x9 : ffff80007a053a38[ 157.140425] x8 : ffff0000c04004b8 x7 : 0000000000000000 x6 : 0000000000000000[ 157.147567] x5 : ffff0000c0400490 x4 : ffff80006a4e3000 x3 : ffff0000c25e4000[ 157.154706] x2 : 0000000000000000 x1 : ffff8000825c0014 x0 : 0000000060000200[ 157.161850] Call trace:[ 157.164296] mxc_isi_pipe_irq_handler+0x19c/0x1b0 [imx8_isi] (P)[ 157.170319] __handle_irq_event_percpu+0x58/0x218[ 157.175029] handle_irq_event+0x54/0xb8[ 157.178867] handle_fasteoi_irq+0xac/0x248[ 157.182968] handle_irq_desc+0x48/0x68[ 157.186723] generic_handle_domain_irq+0x24/0x38[ 157.191346] gic_handle_irq+0x54/0x120[ 157.195098] call_on_irq_stack+0x24/0x30[ 157.199027] do_interrupt_handler+0x88/0x98[ 157.203212] el0_interrupt+0x44/0xc0[ 157.206792] __el0_irq_handler_common+0x18/0x28[ 157.211328] el0t_64_irq_handler+0x10/0x20[ 157.215429] el0t_64_irq+0x198/0x1a0[ 157.219009] ---[ end trace 0000000000000000 ]---Address this issue by moving the streaming preparation and cleanup tothe vb2 .prepare_streaming() and .unprepare_streaming() operations. Thisalso simplifies the driver by allowing direct usage of thevb2_ioctl_streamon() and vb2_ioctl_streamoff() helpers, and removal ofthe manual cleanup from mxc_isi_video_release().
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:s390: Disable ARCH_WANT_OPTIMIZE_HUGETLB_VMEMMAPAs reported by Luiz Capitulino enabling HVO on s390 leads to reproduciblecrashes. The problem is that kernel page tables are modified withoutflushing corresponding TLB entries.Even if it looks like the empty flush_tlb_all() implementation on s390 isthe problem, it is actually a different problem: on s390 it is not allowedto replace an active/valid page table entry with another valid page tableentry without the detour over an invalid entry. A direct replacement maylead to random crashes and/or data corruption.In order to invalidate an entry special instructions have to be used(e.g. ipte or idte). Alternatively there are also special instructionsavailable which allow to replace a valid entry with a different validentry (e.g. crdte or cspg).Given that the HVO code currently does not provide the hooks to allow foran implementation which is compliant with the s390 architecturerequirements, disable ARCH_WANT_OPTIMIZE_HUGETLB_VMEMMAP again, which isbasically a revert of the original patch which enabled it.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:drm/xe/guc: Add devm release action to safely tear down CTWhen a buffer object (BO) is allocated with the XE_BO_FLAG_GGTT_INVALIDATEflag, the driver initiates TLB invalidation requests via the CTB mechanismwhile releasing the BO. However a premature release of the CTB BO can leadto system crashes, as observed in:Oops: Oops: 0000 [#1] SMP NOPTIRIP: 0010:h2g_write+0x2f3/0x7c0 [xe]Call Trace: guc_ct_send_locked+0x8b/0x670 [xe] xe_guc_ct_send_locked+0x19/0x60 [xe] send_tlb_invalidation+0xb4/0x460 [xe] xe_gt_tlb_invalidation_ggtt+0x15e/0x2e0 [xe] ggtt_invalidate_gt_tlb.part.0+0x16/0x90 [xe] ggtt_node_remove+0x110/0x140 [xe] xe_ggtt_node_remove+0x40/0xa0 [xe] xe_ggtt_remove_bo+0x87/0x250 [xe]Introduce a devm-managed release action during xe_guc_ct_init() andxe_guc_ct_init_post_hwconfig() to ensure proper CTB disablement beforeresource deallocation, preventing the use-after-free scenario.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:ksm: use range-walk function to jump over holes in scan_get_next_rmap_itemCurrently, scan_get_next_rmap_item() walks every page address in a VMA tolocate mergeable pages. This becomes highly inefficient when scanninglarge virtual memory areas that contain mostly unmapped regions, causingksmd to use large amount of cpu without deduplicating much pages.This patch replaces the per-address lookup with a range walk usingwalk_page_range(). The range walker allows KSM to skip over entireunmapped holes in a VMA, avoiding unnecessary lookups. This problem waspreviously discussed in [1].Consider the following test program which creates a 32 TiB mapping in thevirtual address space but only populates a single page:#include #include #include /* 32 TiB */const size_t size = 32ul * 1024 * 1024 * 1024 * 1024;int main() { char *area = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_NORESERVE | MAP_PRIVATE | MAP_ANON, -1, 0); if (area == MAP_FAILED) { perror("mmap() failed\n"); return -1; } /* Populate a single page such that we get an anon_vma. */ *area = 0; /* Enable KSM. */ madvise(area, size, MADV_MERGEABLE); pause(); return 0;}$ ./ksm-sparse &$ echo 1 > /sys/kernel/mm/ksm/run Without this patch ksmd uses 100% of the cpu for a long time (more then 1hour in my test machine) scanning all the 32 TiB virtual address spacethat contain only one mapped page. This makes ksmd essentially deadlockednot able to deduplicate anything of value. With this patch ksmd walksonly the one mapped page and skips the rest of the 32 TiB virtual addressspace, making the scan fast using little cpu.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:timers: Fix NULL function pointer race in timer_shutdown_sync()There is a race condition between timer_shutdown_sync() and timerexpiration that can lead to hitting a WARN_ON in expire_timers().The issue occurs when timer_shutdown_sync() clears the timer functionto NULL while the timer is still running on another CPU. The racescenario looks like this:CPU0 CPU1 lock_timer_base() expire_timers() base->running_timer = timer; unlock_timer_base() [call_timer_fn enter] mod_timer() ...timer_shutdown_sync()lock_timer_base()// For now, will not detach the timer but only clear its function to NULLif (base->running_timer != timer) ret = detach_if_pending(timer, base, true);if (shutdown) timer->function = NULL;unlock_timer_base() [call_timer_fn exit] lock_timer_base() base->running_timer = NULL; unlock_timer_base() ... // Now timer is pending while its function set to NULL. // next timer trigger expire_timers() WARN_ON_ONCE(!fn) // hit ...lock_timer_base()// Now timer will detachif (base->running_timer != timer) ret = detach_if_pending(timer, base, true);if (shutdown) timer->function = NULL;unlock_timer_base()The problem is that timer_shutdown_sync() clears the timer functionregardless of whether the timer is currently running. This can leave apending timer with a NULL function pointer, which triggers theWARN_ON_ONCE(!fn) check in expire_timers().Fix this by only clearing the timer function when actually detaching thetimer. If the timer is running, leave the function pointer intact, which issafe because the timer will be properly detached when it finishes running.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:cifs: fix memory leak in smb3_fs_context_parse_param error pathAdd proper cleanup of ctx->source and fc->source to thecifs_parse_mount_err error handler. This ensures that memory allocatedfor the source strings is correctly freed on all error paths, matchingthe cleanup already performed in the success path bysmb3_cleanup_fs_context_contents().Pointers are also set to NULL after freeing to prevent potentialdouble-free issues.This change fixes a memory leak originally detected by syzbot. Theleak occurred when processing Opt_source mount options if an errorhappened after ctx->source and fc->source were successfullyallocated but before the function completed.The specific leak sequence was:1. ctx->source = smb3_fs_context_fullpath(ctx, '/') allocates memory2. fc->source = kstrdup(ctx->source, GFP_KERNEL) allocates more memory3. A subsequent error jumps to cifs_parse_mount_err4. The old error handler freed passwords but not the source strings,causing the memory to leak.This issue was not addressed by commit e8c73eb7db0a ("cifs: client:fix memory leak in smb3_fs_context_parse_param"), which only fixedleaks from repeated fsconfig() calls but not this error path.Patch updated with minor change suggested by kernel test robot
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:scsi: target: tcm_loop: Fix segfault in tcm_loop_tpg_address_show()If the allocation of tl_hba->sh fails in tcm_loop_driver_probe() and weattempt to dereference it in tcm_loop_tpg_address_show() we will get asegfault, see below for an example. So, check tl_hba->sh beforedereferencing it. Unable to allocate struct scsi_host BUG: kernel NULL pointer dereference, address: 0000000000000194 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 0 P4D 0 Oops: 0000 [#1] PREEMPT SMP NOPTI CPU: 1 PID: 8356 Comm: tokio-runtime-w Not tainted 6.6.104.2-4.azl3 #1 Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS Hyper-V UEFI Release v4.1 09/28/2024 RIP: 0010:tcm_loop_tpg_address_show+0x2e/0x50 [tcm_loop]... Call Trace: configfs_read_iter+0x12d/0x1d0 [configfs] vfs_read+0x1b5/0x300 ksys_read+0x6f/0xf0...
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:erofs: avoid infinite loops due to corrupted subpage compact indexesRobert reported an infinite loop observed by two crafted images.The root cause is that `clusterofs` can be larger than `lclustersize`for !NONHEAD `lclusters` in corrupted subpage compact indexes, e.g.: blocksize = lclustersize = 512 lcn = 6 clusterofs = 515Move the corresponding check for full compress indexes to`z_erofs_load_lcluster_from_disk()` to also cover subpage compactcompress indexes.It also fixes the position of `m->type >= Z_EROFS_LCLUSTER_TYPE_MAX`check, since it should be placed right after`z_erofs_load_{compact,full}_lcluster()`.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:usb: gadget: udc: fix use-after-free in usb_gadget_state_workA race condition during gadget teardown can lead to a use-after-freein usb_gadget_state_work(), as reported by KASAN: BUG: KASAN: invalid-access in sysfs_notify+0x2c/0xd0 Workqueue: events usb_gadget_state_workThe fundamental race occurs because a concurrent event (e.g., aninterrupt) can call usb_gadget_set_state() and schedule gadget->workat any time during the cleanup process in usb_del_gadget().Commit 399a45e5237c ("usb: gadget: core: flush gadget workqueue afterdevice removal") attempted to fix this by moving flush_work() to afterdevice_del(). However, this does not fully solve the race, as a newwork item can still be scheduled *after* flush_work() completes butbefore the gadget's memory is freed, leading to the same use-after-free.This patch fixes the race condition robustly by introducing a 'teardown'flag and a 'state_lock' spinlock to the usb_gadget struct. The flag isset during cleanup in usb_del_gadget() *before* calling flush_work() toprevent any new work from being scheduled once cleanup has commenced.The scheduling site, usb_gadget_set_state(), now checks this flag underthe lock before queueing the work, thus safely closing the race window.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:Bluetooth: hci_core: lookup hci_conn on RX path on protocol sideThe hdev lock/lookup/unlock/use pattern in the packet RX path doesn'tensure hci_conn* is not concurrently modified/deleted. This lockingappears to be leftover from before conn_hash started using RCUcommit bf4c63252490b ("Bluetooth: convert conn hash to RCU")and not clear if it had purpose since then.Currently, there are code paths that delete hci_conn* from elsewherethan the ordered hdev->workqueue where the RX work runs in. E.g.commit 5af1f84ed13a ("Bluetooth: hci_sync: Fix UAF on hci_abort_conn_sync")introduced some of these, and there probably were a few others beforeit. It's better to do the locking so that even if these runconcurrently no UAF is possible.Move the lookup of hci_conn and associated socket-specific conn toprotocol recv handlers, and do them within a single critical sectionto cover hci_conn* usage and lookup.syzkaller has reported a crash that appears to be this issue: [Task hdev->workqueue] [Task 2] hci_disconnect_all_sync l2cap_recv_acldata(hcon) hci_conn_get(hcon) hci_abort_conn_sync(hcon) hci_dev_lock hci_dev_lock hci_conn_del(hcon) v-------------------------------- hci_dev_unlock hci_conn_put(hcon) conn = hcon->l2cap_data (UAF)
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:locking/spinlock/debug: Fix data-race in do_raw_write_lockKCSAN reports:BUG: KCSAN: data-race in do_raw_write_lock / do_raw_write_lockwrite (marked) to 0xffff800009cf504c of 4 bytes by task 1102 on cpu 1: do_raw_write_lock+0x120/0x204 _raw_write_lock_irq do_exit call_usermodehelper_exec_async ret_from_forkread to 0xffff800009cf504c of 4 bytes by task 1103 on cpu 0: do_raw_write_lock+0x88/0x204 _raw_write_lock_irq do_exit call_usermodehelper_exec_async ret_from_forkvalue changed: 0xffffffff -> 0x00000001Reported by Kernel Concurrency Sanitizer on:CPU: 0 PID: 1103 Comm: kworker/u4:1 6.1.111Commit 1a365e822372 ("locking/spinlock/debug: Fix various data races") hasadressed most of these races, but seems to be not consistent/not complete.>From do_raw_write_lock() only debug_write_lock_after() part has beenconverted to WRITE_ONCE(), but not debug_write_lock_before() part.Do it now.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:btrfs: fix racy bitfield write in btrfs_clear_space_info_full()From the memory-barriers.txt document regarding memory barrier orderingguarantees: (*) These guarantees do not apply to bitfields, because compilers often generate code to modify these using non-atomic read-modify-write sequences. Do not attempt to use bitfields to synchronize parallel algorithms. (*) Even in cases where bitfields are protected by locks, all fields in a given bitfield must be protected by one lock. If two fields in a given bitfield are protected by different locks, the compiler's non-atomic read-modify-write sequences can cause an update to one field to corrupt the value of an adjacent field.btrfs_space_info has a bitfield sharing an underlying word consisting ofthe fields full, chunk_alloc, and flush:struct btrfs_space_info { struct btrfs_fs_info * fs_info; /* 0 8 */ struct btrfs_space_info * parent; /* 8 8 */ ... int clamp; /* 172 4 */ unsigned int full:1; /* 176: 0 4 */ unsigned int chunk_alloc:1; /* 176: 1 4 */ unsigned int flush:1; /* 176: 2 4 */ ...Therefore, to be safe from parallel read-modify-writes losing a write toone of the bitfield members protected by a lock, all writes to all thebitfields must use the lock. They almost universally do, except forbtrfs_clear_space_info_full() which iterates over the space_infos andwrites out found->full = 0 without a lock.Imagine that we have one thread completing a transaction in which wefinished deleting a block_group and are thus callingbtrfs_clear_space_info_full() while simultaneously the data reclaimticket infrastructure is running do_async_reclaim_data_space(): T1 T2btrfs_commit_transaction btrfs_clear_space_info_full data_sinfo->full = 0 READ: full:0, chunk_alloc:0, flush:1 do_async_reclaim_data_space(data_sinfo) spin_lock(&space_info->lock); if(list_empty(tickets)) space_info->flush = 0; READ: full: 0, chunk_alloc:0, flush:1 MOD/WRITE: full: 0, chunk_alloc:0, flush:0 spin_unlock(&space_info->lock); return; MOD/WRITE: full:0, chunk_alloc:0, flush:1and now data_sinfo->flush is 1 but the reclaim worker has exited. Thisbreaks the invariant that flush is 0 iff there is no work queued orrunning. Once this invariant is violated, future allocations that gointo __reserve_bytes() will add tickets to space_info->tickets but willsee space_info->flush is set to 1 and not queue the work. After this,they will block forever on the resulting ticket, as it is now impossibleto kick the worker again.I also confirmed by looking at the assembly of the affected kernel thatit is doing RMW operations. For example, to set the flush (3rd) bit to 0,the assembly is: andb $0xfb,0x60(%rbx)and similarly for setting the full (1st) bit to 0: andb $0xfe,-0x20(%rax)So I think this is really a bug on practical systems. I have observeda number of systems in this exact state, but am currently unable toreproduce it.Rather than leaving this footgun lying around for the future, takeadvantage of the fact that there is room in the struct anyway, and thatit is already quite large and simply change the three bitfield members tobools. This avoids writes to space_info->full having any effect on---truncated---
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:ocfs2: relax BUG() to ocfs2_error() in __ocfs2_move_extent()In '__ocfs2_move_extent()', relax 'BUG()' to 'ocfs2_error()' justto avoid crashing the whole kernel due to a filesystem corruption.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:scsi: smartpqi: Fix device resources accessed after device removalCorrect possible race conditions during device removal.Previously, a scheduled work item to reset a LUN could still executeafter the device was removed, leading to use-after-free and otherresource access issues.This race condition occurs because the abort handler may schedule a LUNreset concurrently with device removal via sdev_destroy(), leading touse-after-free and improper access to freed resources. - Check in the device reset handler if the device is still present in the controller's SCSI device list before running; if not, the reset is skipped. - Cancel any pending TMF work that has not started in sdev_destroy(). - Ensure device freeing in sdev_destroy() is done while holding the LUN reset mutex to avoid races with ongoing resets.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:accel/ivpu: Fix page fault in ivpu_bo_unbind_all_bos_from_context()Don't add BO to the vdev->bo_list in ivpu_gem_create_object().When failure happens inside drm_gem_shmem_create(), the BO is notfully created and ivpu_gem_bo_free() callback will not be calledcausing a deleted BO to be left on the list.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:sched/deadline: only set free_cpus for online runqueuesCommit 16b269436b72 ("sched/deadline: Modify cpudl::free_cpusto reflect rd->online") introduced the cpudl_set/clear_freecpufunctions to allow the cpu_dl::free_cpus mask to be manipulatedby the deadline scheduler class rq_on/offline callbacks so themask would also reflect this state.Commit 9659e1eeee28 ("sched/deadline: Remove cpu_active_maskfrom cpudl_find()") removed the check of the cpu_active_mask tosave some processing on the premise that the cpudl::free_cpusmask already reflected the runqueue online state.Unfortunately, there are cases where it is possible for thecpudl_clear function to set the free_cpus bit for a CPU when thedeadline runqueue is offline. When this occurs while a CPU isconnected to the default root domain the flag may retain the badstate after the CPU has been unplugged. Later, a different CPUthat is transitioning through the default root domain may push adeadline task to the powered down CPU when cpudl_find sees itsfree_cpus bit is set. If this happens the task will not have theopportunity to run.One example is outlined here:https://lore.kernel.org/lkml/20250110233010.2339521-1-opendmb@gmail.comAnother occurs when the last deadline task is migrated from aCPU that has an offlined runqueue. The dequeue_task member ofthe deadline scheduler class will eventually call cpudl_clearand set the free_cpus bit for the CPU.This commit modifies the cpudl_clear function to be aware of theonline state of the deadline runqueue so that the free_cpus maskcan be updated appropriately.It is no longer necessary to manage the mask outside of thecpudl_set/clear functions so the cpudl_set/clear_freecpufunctions are removed. In addition, since the free_cpus mask isnow only updated under the cpudl lock the code was changed touse the non-atomic __cpumask functions.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:scsi: target: Reset t_task_cdb pointer in error caseIf allocation of cmd->t_task_cdb fails, it remains NULL but is laterdereferenced in the 'err' path.In case of error, reset NULL t_task_cdb value to point at the defaultfixed-size buffer.Found by Linux Verification Center (linuxtesting.org) with SVACE.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:scsi: Revert "scsi: qla2xxx: Perform lockless command completion in abort path"This reverts commit 0367076b0817d5c75dfb83001ce7ce5c64d803a9.The commit being reverted added code to __qla2x00_abort_all_cmds() tocall sp->done() without holding a spinlock. But unlike the older codebelow it, this new code failed to check sp->cmd_type and just assumedTYPE_SRB, which results in a jump to an invalid pointer in target-modewith TYPE_TGT_CMD:qla2xxx [0000:65:00.0]-d034:8: qla24xx_do_nack_work create sess success 0000000009f7a79bqla2xxx [0000:65:00.0]-5003:8: ISP System Error - mbx1=1ff5h mbx2=10h mbx3=0h mbx4=0h mbx5=191h mbx6=0h mbx7=0h.qla2xxx [0000:65:00.0]-d01e:8: -> fwdump no bufferqla2xxx [0000:65:00.0]-f03a:8: qla_target(0): System error async event 0x8002 occurredqla2xxx [0000:65:00.0]-00af:8: Performing ISP error recovery - ha=0000000058183fda.BUG: kernel NULL pointer dereference, address: 0000000000000000PF: supervisor instruction fetch in kernel modePF: error_code(0x0010) - not-present pagePGD 0 P4D 0Oops: 0010 [#1] SMPCPU: 2 PID: 9446 Comm: qla2xxx_8_dpc Tainted: G O 6.1.133 #1Hardware name: Supermicro Super Server/X11SPL-F, BIOS 4.2 12/15/2023RIP: 0010:0x0Code: Unable to access opcode bytes at 0xffffffffffffffd6.RSP: 0018:ffffc90001f93dc8 EFLAGS: 00010206RAX: 0000000000000282 RBX: 0000000000000355 RCX: ffff88810d16a000RDX: ffff88810dbadaa8 RSI: 0000000000080000 RDI: ffff888169dc38c0RBP: ffff888169dc38c0 R08: 0000000000000001 R09: 0000000000000045R10: ffffffffa034bdf0 R11: 0000000000000000 R12: ffff88810800bb40R13: 0000000000001aa8 R14: ffff888100136610 R15: ffff8881070f7400FS: 0000000000000000(0000) GS:ffff88bf80080000(0000) knlGS:0000000000000000CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033CR2: ffffffffffffffd6 CR3: 000000010c8ff006 CR4: 00000000003706e0DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400Call Trace: ? __die+0x4d/0x8b ? page_fault_oops+0x91/0x180 ? trace_buffer_unlock_commit_regs+0x38/0x1a0 ? exc_page_fault+0x391/0x5e0 ? asm_exc_page_fault+0x22/0x30 __qla2x00_abort_all_cmds+0xcb/0x3e0 [qla2xxx_scst] qla2x00_abort_all_cmds+0x50/0x70 [qla2xxx_scst] qla2x00_abort_isp_cleanup+0x3b7/0x4b0 [qla2xxx_scst] qla2x00_abort_isp+0xfd/0x860 [qla2xxx_scst] qla2x00_do_dpc+0x581/0xa40 [qla2xxx_scst] kthread+0xa8/0xd0 Then commit 4475afa2646d ("scsi: qla2xxx: Complete command early withinlock") added the spinlock back, because not having the lock caused arace and a crash. But qla2x00_abort_srb() in the switch below alreadychecks for qla2x00_chip_is_down() and handles it the same way, so thecode above the switch is now redundant and still buggy in target-mode.Remove it.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:Input: alps - fix use-after-free bugs caused by dev3_register_workThe dev3_register_work delayed work item is initialized withinalps_reconnect() and scheduled upon receipt of the first barePS/2 packet from an external PS/2 device connected to the ALPStouchpad. During device detachment, the original implementationcalls flush_workqueue() in psmouse_disconnect() to ensurecompletion of dev3_register_work. However, the flush_workqueue()in psmouse_disconnect() only blocks and waits for work items thatwere already queued to the workqueue prior to its invocation. Anywork items submitted after flush_workqueue() is called are notincluded in the set of tasks that the flush operation awaits.This means that after flush_workqueue() has finished executing,the dev3_register_work could still be scheduled. Although thepsmouse state is set to PSMOUSE_CMD_MODE in psmouse_disconnect(),the scheduling of dev3_register_work remains unaffected.The race condition can occur as follows:CPU 0 (cleanup path) | CPU 1 (delayed work)psmouse_disconnect() | psmouse_set_state() | flush_workqueue() | alps_report_bare_ps2_packet() alps_disconnect() | psmouse_queue_work() kfree(priv); // FREE | alps_register_bare_ps2_mouse() | priv = container_of(work...); // USE | priv->dev3 // USEAdd disable_delayed_work_sync() in alps_disconnect() to ensurethat dev3_register_work is properly canceled and prevented fromexecuting after the alps_data structure has been deallocated.This bug is identified by static analysis.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: An issue was discovered in Binutils before 2.46. The objdump contains a denial-of-service vulnerability when processing a crafted binary with malformed debug information. A logic flaw in the handling of DWARF location list headers can cause objdump to enter an unbounded loop and produce endless output until manually interrupted. This issue affects versions prior to the upstream fix and allows a local attacker to cause excessive resource consumption by supplying a malicious input file.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- binutils > 0-0 (version in image is 2.45-150100.7.57.1).
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Description: Binutils objdump contains a denial-of-service vulnerability when processing a crafted binary with malformed DWARF debug_rnglists data. A logic error in the handling of the debug_rnglists header can cause objdump to repeatedly print the same warning message and fail to terminate, resulting in an unbounded logging loop until the process is interrupted. The issue was observed in binutils 2.44. A local attacker can exploit this vulnerability by supplying a malicious input file, leading to excessive CPU and I/O usage and preventing completion of the objdump analysis.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- binutils > 0-0 (version in image is 2.45-150100.7.57.1).
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Description: GNU Binutils thru 2.45.1 readelf contains a denial-of-service vulnerability when processing a crafted binary with malformed DWARF loclists data. A logic flaw in the DWARF parsing code can cause readelf to repeatedly print the same table output without making forward progress, resulting in an unbounded output loop that never terminates unless externally interrupted. A local attacker can trigger this behavior by supplying a malicious input file, causing excessive CPU and I/O usage and preventing readelf from completing its analysis.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- binutils > 0-0 (version in image is 2.45-150100.7.57.1).
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Description: GNU Binutils thru 2.45.1 readelf contains a denial-of-service vulnerability when processing a crafted binary with malformed DWARF .debug_rnglists data. A logic flaw in the DWARF parsing path causes readelf to repeatedly print the same warning message without making forward progress, resulting in a non-terminating output loop that requires manual interruption. No evidence of memory corruption or code execution was observed.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- binutils > 0-0 (version in image is 2.45-150100.7.57.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:svcrdma: bound check rq_pages index in inline pathsvc_rdma_copy_inline_range indexed rqstp->rq_pages[rc_curpage] withoutverifying rc_curpage stays within the allocated page array. Add guardsbefore the first use and after advancing to a new page.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:functionfs: fix the open/removal racesffs_epfile_open() can race with removal, ending up with file->private_datapointing to freed object.There is a total count of opened files on functionfs (both ep0 anddynamic ones) and when it hits zero, dynamic files get removed.Unfortunately, that removal can happen while another thread isin ffs_epfile_open(), but has not incremented the count yet.In that case open will succeed, leaving us with UAF on any subsequentread() or write().The root cause is that ffs->opened is misused; atomic_dec_and_test() vs.atomic_add_return() is not a good idea, when object remains visible allalong.To untangle that * serialize openers on ffs->mutex (both for ep0 and for dynamic files) * have dynamic ones use atomic_inc_not_zero() and fail if we hadzero ->opened; in that case the file we are opening is doomed. * have the inodes of dynamic files marked on removal (from thecallback of simple_recursive_removal()) - clear ->i_private there. * have open of dynamic ones verify they hadn't been already removed,along with checking that state is FFS_ACTIVE.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:scsi: aic94xx: fix use-after-free in device removal pathThe asd_pci_remove() function fails to synchronize with pending taskletsbefore freeing the asd_ha structure, leading to a potentialuse-after-free vulnerability.When a device removal is triggered (via hot-unplug or module unload),race condition can occur.The fix adds tasklet_kill() before freeing the asd_ha structure,ensuring all scheduled tasklets complete before cleanup proceeds.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:wifi: mac80211: Discard Beacon frames to non-broadcast addressBeacon frames are required to be sent to the broadcast address, see IEEEStd 802.11-2020, 11.1.3.1 ("The Address 1 field of the Beacon .. frameshall be set to the broadcast address"). A unicast Beacon frame might beused as a targeted attack to get one of the associated STAs to dosomething (e.g., using CSA to move it to another channel). As such, itis better have strict filtering for this on the received side anddiscard all Beacon frames that are sent to an unexpected address.This is even more important for cases where beacon protection is used.The current implementation in mac80211 is correctly discarding unicastBeacon frames if the Protected Frame bit in the Frame Control field isset to 0. However, if that bit is set to 1, the logic used for checkingfor configured BIGTK(s) does not actually work. If the driver does nothave logic for dropping unicast Beacon frames with Protected Frame bit1, these frames would be accepted in mac80211 processing as valid Beaconframes even though they are not protected. This would allow beaconprotection to be bypassed. While the logic for checking beaconprotection could be extended to cover this corner case, a more genericcheck for discard all Beacon frames based on A1=unicast address coversthis without needing additional changes.Address all these issues by dropping received Beacon frames if they aresent to a non-broadcast address.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:counter: interrupt-cnt: Drop IRQF_NO_THREAD flagAn IRQ handler can either be IRQF_NO_THREAD or acquire spinlock_t, asCONFIG_PROVE_RAW_LOCK_NESTING warns:=============================[ BUG: Invalid wait context ]6.18.0-rc1+git... #1-----------------------------some-user-space-process/1251 is trying to lock:(&counter->events_list_lock){....}-{3:3}, at: counter_push_event [counter]other info that might help us debug this:context-{2:2}no locks held by some-user-space-process/....stack backtrace:CPU: 0 UID: 0 PID: 1251 Comm: some-user-space-process 6.18.0-rc1+git... #1 PREEMPTCall trace: show_stack (C) dump_stack_lvl dump_stack __lock_acquire lock_acquire _raw_spin_lock_irqsave counter_push_event [counter] interrupt_cnt_isr [interrupt_cnt] __handle_irq_event_percpu handle_irq_event handle_simple_irq handle_irq_desc generic_handle_domain_irq gpio_irq_handler handle_irq_desc generic_handle_domain_irq gic_handle_irq call_on_irq_stack do_interrupt_handler el0_interrupt __el0_irq_handler_common el0t_64_irq_handler el0t_64_irq... and Sebastian correctly points out. Remove IRQF_NO_THREAD as analternative to switching to raw_spinlock_t, because the latter would limitall potential nested locks to raw_spinlock_t only.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:btrfs: always detect conflicting inodes when logging inode refsAfter rename exchanging (either with the rename exchange operation orregular renames in multiple non-atomic steps) two inodes and at leastone of them is a directory, we can end up with a log tree that containsonly of the inodes and after a power failure that can result in an attemptto delete the other inode when it should not because it was not deletedbefore the power failure. In some case that delete attempt fails whenthe target inode is a directory that contains a subvolume inside it, sincethe log replay code is not prepared to deal with directory entries thatpoint to root items (only inode items).1) We have directories "dir1" (inode A) and "dir2" (inode B) under the same parent directory;2) We have a file (inode C) under directory "dir1" (inode A);3) We have a subvolume inside directory "dir2" (inode B);4) All these inodes were persisted in a past transaction and we are currently at transaction N;5) We rename the file (inode C), so at btrfs_log_new_name() we update inode C's last_unlink_trans to N;6) We get a rename exchange for "dir1" (inode A) and "dir2" (inode B), so after the exchange "dir1" is inode B and "dir2" is inode A. During the rename exchange we call btrfs_log_new_name() for inodes A and B, but because they are directories, we don't update their last_unlink_trans to N;7) An fsync against the file (inode C) is done, and because its inode has a last_unlink_trans with a value of N we log its parent directory (inode A) (through btrfs_log_all_parents(), called from btrfs_log_inode_parent()).8) So we end up with inode B not logged, which now has the old name of inode A. At copy_inode_items_to_log(), when logging inode A, we did not check if we had any conflicting inode to log because inode A has a generation lower than the current transaction (created in a past transaction);9) After a power failure, when replaying the log tree, since we find that inode A has a new name that conflicts with the name of inode B in the fs tree, we attempt to delete inode B... this is wrong since that directory was never deleted before the power failure, and because there is a subvolume inside that directory, attempting to delete it will fail since replay_dir_deletes() and btrfs_unlink_inode() are not prepared to deal with dir items that point to roots instead of inodes. When that happens the mount fails and we get a stack trace like the following: [87.2314] BTRFS info (device dm-0): start tree-log replay [87.2318] BTRFS critical (device dm-0): failed to delete reference to subvol, root 5 inode 256 parent 259 [87.2332] ------------[ cut here ]------------ [87.2338] BTRFS: Transaction aborted (error -2) [87.2346] WARNING: CPU: 1 PID: 638968 at fs/btrfs/inode.c:4345 __btrfs_unlink_inode+0x416/0x440 [btrfs] [87.2368] Modules linked in: btrfs loop dm_thin_pool (...) [87.2470] CPU: 1 UID: 0 PID: 638968 Comm: mount Tainted: G W 6.18.0-rc7-btrfs-next-218+ #2 PREEMPT(full) [87.2489] Tainted: [W]=WARN [87.2494] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.2-0-gea1b7a073390-prebuilt.qemu.org 04/01/2014 [87.2514] RIP: 0010:__btrfs_unlink_inode+0x416/0x440 [btrfs] [87.2538] Code: c0 89 04 24 (...) [87.2568] RSP: 0018:ffffc0e741f4b9b8 EFLAGS: 00010286 [87.2574] RAX: 0000000000000000 RBX: ffff9d3ec8a6cf60 RCX: 0000000000000000 [87.2582] RDX: 0000000000000002 RSI: ffffffff84ab45a1 RDI: 00000000ffffffff [87.2591] RBP: ffff9d3ec8a6ef20 R08: 0000000000000000 R09: ffffc0e741f4b840 [87.2599] R10: ffff9d45dc1fffa8 R11: 0000000000000003 R12: ffff9d3ee26d77e0 [87.2608] R13: ffffc0e741f4ba98 R14: ffff9d4458040800 R15: ffff9d44b6b7ca10 [87.2618] FS: 00007f7b9603a840(0000) GS:ffff9d4658982000(0000) knlGS:0000000000000000 [87.---truncated---
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:wifi: mac80211: don't WARN for connections on invalid channelsIt's not clear (to me) how exactly syzbot managed to hit this,but it seems conceivable that e.g. regulatory changed and hasdisabled a channel between scanning (channel is checked to beusable by cfg80211_get_ies_channel_number) and connecting onthe channel later.With one scenario that isn't covered elsewhere described above,the warning isn't good, replace it with a (more informative)error message.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:btrfs: fix reservation leak in some error paths when inserting inline extentIf we fail to allocate a path or join a transaction, we return from__cow_file_range_inline() without freeing the reserved qgroup data,resulting in a leak. Fix this by ensuring we call btrfs_qgroup_free_data()in such cases.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default < 6.4.0-150700.53.37.1 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:libceph: make calc_target() set t->paused, not just clear itCurrently calc_target() clears t->paused if the request shouldn't bepaused anymore, but doesn't ever set t->paused even though it's able todetermine when the request should be paused. Setting t->paused is leftto __submit_request() which is fine for regular requests but doesn'twork for linger requests -- since __submit_request() doesn't operateon linger requests, there is nowhere for lreq->t.paused to be set.One consequence of this is that watches don't get reestablished onpaused -> unpaused transitions in cases where requests have been pausedlong enough for the (paused) unwatch request to time out and for thesubsequent (re)watch request to enter the paused state. On top of thewatch not getting reestablished, rbd_reregister_watch() gets stuck withrbd_dev->watch_mutex held: rbd_register_watch __rbd_register_watch ceph_osdc_watch linger_reg_commit_waitIt's waiting for lreq->reg_commit_wait to be completed, but for that tohappen the respective request needs to end up on need_resend_linger listand be kicked when requests are unpaused. There is no chance for thatif the request in question is never marked paused in the first place.The fact that rbd_dev->watch_mutex remains taken out forever thenprevents the image from getting unmapped -- "rbd unmap" would inevitablyhang in D state on an attempt to grab the mutex.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default < 6.4.0-150700.53.37.1 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:can: esd_usb: esd_usb_read_bulk_callback(): fix URB memory leakFix similar memory leak as in commit 7352e1d5932a ("can: gs_usb:gs_usb_receive_bulk_callback(): fix URB memory leak").In esd_usb_open(), the URBs for USB-in transfers are allocated, added tothe dev->rx_submitted anchor and submitted. In the complete callbackesd_usb_read_bulk_callback(), the URBs are processed and resubmitted. Inesd_usb_close() the URBs are freed by callingusb_kill_anchored_urbs(&dev->rx_submitted).However, this does not take into account that the USB framework unanchorsthe URB before the complete function is called. This means that once anin-URB has been completed, it is no longer anchored and is ultimately notreleased in esd_usb_close().Fix the memory leak by anchoring the URB in theesd_usb_read_bulk_callback() to the dev->rx_submitted anchor.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:scsi: xen: scsiback: Fix potential memory leak in scsiback_remove()Memory allocated for struct vscsiblk_info in scsiback_probe() is notfreed in scsiback_remove() leading to potential memory leaks on remove,as well as in the scsiback_probe() error paths. Fix that by freeing itin scsiback_remove().
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:migrate: correct lock ordering for hugetlb file foliosSyzbot has found a deadlock (analyzed by Lance Yang):1) Task (5749): Holds folio_lock, then tries to acquire i_mmap_rwsem(read lock).2) Task (5754): Holds i_mmap_rwsem(write lock), then tries to acquirefolio_lock.migrate_pages() -> migrate_hugetlbs() -> unmap_and_move_huge_page() <- Takes folio_lock! -> remove_migration_ptes() -> __rmap_walk_file() -> i_mmap_lock_read() <- Waits for i_mmap_rwsem(read lock)!hugetlbfs_fallocate() -> hugetlbfs_punch_hole() <- Takes i_mmap_rwsem(write lock)! -> hugetlbfs_zero_partial_page() -> filemap_lock_hugetlb_folio() -> filemap_lock_folio() -> __filemap_get_folio <- Waits for folio_lock!The migration path is the one taking locks in the wrong order according tothe documentation at the top of mm/rmap.c. So expand the scope of theexisting i_mmap_lock to cover the calls to remove_migration_ptes() too.This is (mostly) how it used to be after commit c0d0381ade79. That wasremoved by 336bf30eb765 for both file & anon hugetlb pages when it shouldonly have been removed for anon hugetlb pages.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:ipvlan: Make the addrs_lock be per portMake the addrs_lock be per port, not per ipvlan dev.Initial code seems to be written in the assumption,that any address change must occur under RTNL.But it is not so for the case of IPv6. So1) Introduce per-port addrs_lock.2) It was needed to fix places where it was forgottento take lock (ipvlan_open/ipvlan_close)This appears to be a very minor problem though.Since it's highly unlikely that ipvlan_add_addr() willbe called on 2 CPU simultaneously. But nevertheless,this could cause:1) False-negative of ipvlan_addr_busy(): one interfaceiterated through all port->ipvlans + ipvlan->addrsunder some ipvlan spinlock, and another added IPunder its own lock. Though this is only possiblefor IPv6, since looks like only ipvlan_addr6_event() can becalled without rtnl_lock.2) Race since ipvlan_ht_addr_add(port) is called underdifferent ipvlan->addrs_lock locksThis should not affect performance, since add/remove IPis a rare situation and spinlock is not taken on fastpaths.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default < 6.4.0-150700.53.37.1 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:rxrpc: Fix data-race warning and potential load/store tearingFix the following: BUG: KCSAN: data-race in rxrpc_peer_keepalive_worker / rxrpc_send_data_packetwhich is reporting an issue with the reads and writes to ->last_tx_at in: conn->peer->last_tx_at = ktime_get_seconds();and: keepalive_at = peer->last_tx_at + RXRPC_KEEPALIVE_TIME;The lockless accesses to these to values aren't actually a problem as theread only needs an approximate time of last transmission for the purposesof deciding whether or not the transmission of a keepalive packet iswarranted yet.Also, as ->last_tx_at is a 64-bit value, tearing can occur on a 32-bitarch.Fix both of these by switching to an unsigned int for ->last_tx_at and onlystoring the LSW of the time64_t. It can then be reconstructed at needprovided no more than 68 years has elapsed since the last transmission.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:l2tp: avoid one data-race in l2tp_tunnel_del_work()We should read sk->sk_socket only when dealing with kernel sockets.syzbot reported the following data-race:BUG: KCSAN: data-race in l2tp_tunnel_del_work / sk_common_releasewrite to 0xffff88811c182b20 of 8 bytes by task 5365 on cpu 0: sk_set_socket include/net/sock.h:2092 [inline] sock_orphan include/net/sock.h:2118 [inline] sk_common_release+0xae/0x230 net/core/sock.c:4003 udp_lib_close+0x15/0x20 include/net/udp.h:325 inet_release+0xce/0xf0 net/ipv4/af_inet.c:437 __sock_release net/socket.c:662 [inline] sock_close+0x6b/0x150 net/socket.c:1455 __fput+0x29b/0x650 fs/file_table.c:468 ____fput+0x1c/0x30 fs/file_table.c:496 task_work_run+0x131/0x1a0 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:44 [inline] exit_to_user_mode_loop+0x1fe/0x740 kernel/entry/common.c:75 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:159 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:194 [inline] do_syscall_64+0x1e1/0x2b0 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7fread to 0xffff88811c182b20 of 8 bytes by task 827 on cpu 1: l2tp_tunnel_del_work+0x2f/0x1a0 net/l2tp/l2tp_core.c:1418 process_one_work kernel/workqueue.c:3257 [inline] process_scheduled_works+0x4ce/0x9d0 kernel/workqueue.c:3340 worker_thread+0x582/0x770 kernel/workqueue.c:3421 kthread+0x489/0x510 kernel/kthread.c:463 ret_from_fork+0x149/0x290 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246value changed: 0xffff88811b818000 -> 0x0000000000000000
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default < 6.4.0-150700.53.37.1 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:ipv6: annotate data-race in ndisc_router_discovery()syzbot found that ndisc_router_discovery() could read and writein6_dev->ra_mtu without holding a lock [1]This looks fine, IFLA_INET6_RA_MTU is best effort.Add READ_ONCE()/WRITE_ONCE() to document the race.Note that we might also reject illegal MTU values(mtu < IPV6_MIN_MTU || mtu > skb->dev->mtu) in a future patch.[1]BUG: KCSAN: data-race in ndisc_router_discovery / ndisc_router_discoveryread to 0xffff888119809c20 of 4 bytes by task 25817 on cpu 1: ndisc_router_discovery+0x151d/0x1c90 net/ipv6/ndisc.c:1558 ndisc_rcv+0x2ad/0x3d0 net/ipv6/ndisc.c:1841 icmpv6_rcv+0xe5a/0x12f0 net/ipv6/icmp.c:989 ip6_protocol_deliver_rcu+0xb2a/0x10d0 net/ipv6/ip6_input.c:438 ip6_input_finish+0xf0/0x1d0 net/ipv6/ip6_input.c:489 NF_HOOK include/linux/netfilter.h:318 [inline] ip6_input+0x5e/0x140 net/ipv6/ip6_input.c:500 ip6_mc_input+0x27c/0x470 net/ipv6/ip6_input.c:590 dst_input include/net/dst.h:474 [inline] ip6_rcv_finish+0x336/0x340 net/ipv6/ip6_input.c:79...write to 0xffff888119809c20 of 4 bytes by task 25816 on cpu 0: ndisc_router_discovery+0x155a/0x1c90 net/ipv6/ndisc.c:1559 ndisc_rcv+0x2ad/0x3d0 net/ipv6/ndisc.c:1841 icmpv6_rcv+0xe5a/0x12f0 net/ipv6/icmp.c:989 ip6_protocol_deliver_rcu+0xb2a/0x10d0 net/ipv6/ip6_input.c:438 ip6_input_finish+0xf0/0x1d0 net/ipv6/ip6_input.c:489 NF_HOOK include/linux/netfilter.h:318 [inline] ip6_input+0x5e/0x140 net/ipv6/ip6_input.c:500 ip6_mc_input+0x27c/0x470 net/ipv6/ip6_input.c:590 dst_input include/net/dst.h:474 [inline] ip6_rcv_finish+0x336/0x340 net/ipv6/ip6_input.c:79...value changed: 0x00000000 -> 0xe5400659
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:netdevsim: fix a race issue related to the operation on bpf_bound_progs listThe netdevsim driver lacks a protection mechanism for operations on thebpf_bound_progs list. When the nsim_bpf_create_prog() performslist_add_tail, it is possible that nsim_bpf_destroy_prog() issimultaneously performs list_del. Concurrent operations on the list maylead to list corruption and trigger a kernel crash as follows:[ 417.290971] kernel BUG at lib/list_debug.c:62![ 417.290983] invalid opcode: 0000 [#1] PREEMPT SMP NOPTI[ 417.290992] CPU: 10 PID: 168 Comm: kworker/10:1 Kdump: loaded Not tainted 6.19.0-rc5 #1[ 417.291003] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014[ 417.291007] Workqueue: events bpf_prog_free_deferred[ 417.291021] RIP: 0010:__list_del_entry_valid_or_report+0xa7/0xc0[ 417.291034] Code: a8 ff 0f 0b 48 89 fe 48 89 ca 48 c7 c7 48 a1 eb ae e8 ed fb a8 ff 0f 0b 48 89 fe 48 89 c2 48 c7 c7 80 a1 eb ae e8 d9 fb a8 ff <0f> 0b 48 89 d1 48 c7 c7 d0 a1 eb ae 48 89 f2 48 89 c6 e8 c2 fb a8[ 417.291040] RSP: 0018:ffffb16a40807df8 EFLAGS: 00010246[ 417.291046] RAX: 000000000000006d RBX: ffff8e589866f500 RCX: 0000000000000000[ 417.291051] RDX: 0000000000000000 RSI: ffff8e59f7b23180 RDI: ffff8e59f7b23180[ 417.291055] RBP: ffffb16a412c9000 R08: 0000000000000000 R09: 0000000000000003[ 417.291059] R10: ffffb16a40807c80 R11: ffffffffaf9edce8 R12: ffff8e594427ac20[ 417.291063] R13: ffff8e59f7b44780 R14: ffff8e58800b7a05 R15: 0000000000000000[ 417.291074] FS: 0000000000000000(0000) GS:ffff8e59f7b00000(0000) knlGS:0000000000000000[ 417.291079] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033[ 417.291083] CR2: 00007fc4083efe08 CR3: 00000001c3626006 CR4: 0000000000770ee0[ 417.291088] PKRU: 55555554[ 417.291091] Call Trace:[ 417.291096] [ 417.291103] nsim_bpf_destroy_prog+0x31/0x80 [netdevsim][ 417.291154] __bpf_prog_offload_destroy+0x2a/0x80[ 417.291163] bpf_prog_dev_bound_destroy+0x6f/0xb0[ 417.291171] bpf_prog_free_deferred+0x18e/0x1a0[ 417.291178] process_one_work+0x18a/0x3a0[ 417.291188] worker_thread+0x27b/0x3a0[ 417.291197] ? __pfx_worker_thread+0x10/0x10[ 417.291207] kthread+0xe5/0x120[ 417.291214] ? __pfx_kthread+0x10/0x10[ 417.291221] ret_from_fork+0x31/0x50[ 417.291230] ? __pfx_kthread+0x10/0x10[ 417.291236] ret_from_fork_asm+0x1a/0x30[ 417.291246] Add a mutex lock, to prevent simultaneous addition and deletion operationson the list.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:libceph: reset sparse-read state in osd_fault()When a fault occurs, the connection is abandoned, reestablished, and anypending operations are retried. The OSD client tracks the progress of asparse-read reply using a separate state machine, largely independent ofthe messenger's state.If a connection is lost mid-payload or the sparse-read state machinereturns an error, the sparse-read state is not reset. The OSD clientwill then interpret the beginning of a new reply as the continuation ofthe old one. If this makes the sparse-read machinery enter a failurestate, it may never recover, producing loops like: libceph: [0] got 0 extents libceph: data len 142248331 != extent len 0 libceph: osd0 (1)...:6801 socket error on read libceph: data len 142248331 != extent len 0 libceph: osd0 (1)...:6801 socket error on readTherefore, reset the sparse-read state in osd_fault(), ensuring retriesstart from a clean state.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default < 6.4.0-150700.53.37.1 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:tracing: Add recursion protection in kernel stack trace recordingA bug was reported about an infinite recursion caused by tracing the rcuevents with the kernel stack trace trigger enabled. The stack trace codecalled back into RCU which then called the stack trace again.Expand the ftrace recursion protection to add a set of bits to protectevents from recursion. Each bit represents the context that the event isin (normal, softirq, interrupt and NMI).Have the stack trace code use the interrupt context to protect againstrecursion.Note, the bug showed an issue in both the RCU code as well as the tracingstacktrace code. This only handles the tracing stack trace side of thebug. The RCU fix will be handled separately.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:bpf, test_run: Subtract size of xdp_frame from allowed metadata sizeThe xdp_frame structure takes up part of the XDP frame headroom,limiting the size of the metadata. However, in bpf_test_run, we don'ttake this into account, which makes it possible for userspace to supplya metadata size that is too large (taking up the entire headroom).If userspace supplies such a large metadata size in live packet mode,the xdp_update_frame_from_buff() call in xdp_test_run_init_page() callwill fail, after which packet transmission proceeds with anuninitialised frame structure, leading to the usual Bad Stuff.The commit in the Fixes tag fixed a related bug where the second checkin xdp_update_frame_from_buff() could fail, but did not add anyadditional constraints on the metadata size. Complete the fix by addingan additional check on the metadata size. Reorder the checks slightly tomake the logic clearer and add a comment.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default < 6.4.0-150700.53.37.1 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:octeon_ep: Fix memory leak in octep_device_setup()In octep_device_setup(), if octep_ctrl_net_init() fails, the functionreturns directly without unmapping the mapped resources and freeing theallocated configuration memory.Fix this by jumping to the unsupported_dev label, which performs thenecessary cleanup. This aligns with the error handling logic of otherpaths in this function.Compile tested only. Issue found using a prototype static analysis tooland code review.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:rocker: fix memory leak in rocker_world_port_post_fini()In rocker_world_port_pre_init(), rocker_port->wpriv is allocated withkzalloc(wops->port_priv_size, GFP_KERNEL). However, inrocker_world_port_post_fini(), the memory is only freed whenwops->port_post_fini callback is set: if (!wops->port_post_fini) return; wops->port_post_fini(rocker_port); kfree(rocker_port->wpriv);Since rocker_ofdpa_ops does not implement port_post_fini callback(it is NULL), the wpriv memory allocated for each port is never freedwhen ports are removed. This leads to a memory leak ofsizeof(struct ofdpa_port) bytes per port on every device removal.Fix this by always calling kfree(rocker_port->wpriv) regardless ofwhether the port_post_fini callback exists.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:flex_proportions: make fprop_new_period() hardirq safeBernd has reported a lockdep splat from flexible proportions code that isessentially complaining about the following race:run_timer_softirq - we are in softirq context call_timer_fn writeout_period fprop_new_period write_seqcount_begin(&p->sequence); ... blk_mq_end_request() blk_update_request() ext4_end_bio() folio_end_writeback() __wb_writeout_add() __fprop_add_percpu_max() if (unlikely(max_frac < FPROP_FRAC_BASE)) { fprop_fraction_percpu() seq = read_seqcount_begin(&p->sequence); - sees odd sequence so loops indefinitelyNote that a deadlock like this is only possible if the bdi has configuredmaximum fraction of writeout throughput which is very rare in general butfrequent for example for FUSE bdis. To fix this problem we have to makesure write section of the sequence counter is irqsafe.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:pmdomain: imx8m-blk-ctrl: fix out-of-range access of bc->domainsFix out-of-range access of bc->domains in imx8m_blk_ctrl_remove().
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default < 6.4.0-150700.53.37.1 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:ceph: fix oops due to invalid pointer for kfree() in parse_longname()This fixes a kernel oops when reading ceph snapshot directories (.snap),for example by simply running `ls /mnt/my_ceph/.snap`.The variable str is guarded by __free(kfree), but advanced by one forskipping the initial '_' in snapshot names. Thus, kfree() is calledwith an invalid pointer. This patch removes the need for advancing thepointer so kfree() is called with correct memory pointer.Steps to reproduce:1. Create snapshots on a cephfs volume (I've 63 snaps in my testcase)2. Add cephfs mount to fstab$ echo "samba-fileserver@.files=/volumes/datapool/stuff/3461082b-ecc9-4e82-8549-3fd2590d3fb6 /mnt/test/stuff ceph acl,noatime,_netdev 0 0" >> /etc/fstab3. Reboot the system$ systemctl reboot4. Check if it's really mounted$ mount | grep stuff5. List snapshots (expected 63 snapshots on my system)$ ls /mnt/test/stuff/.snapNow ls hangs forever and the kernel log shows the oops.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default < 6.4.0-150700.53.37.1 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:bonding: annotate data-races around slave->last_rxslave->last_rx and slave->target_last_arp_rx[...] can be read and writtenlocklessly. Add READ_ONCE() and WRITE_ONCE() annotations.syzbot reported:BUG: KCSAN: data-race in bond_rcv_validate / bond_rcv_validatewrite to 0xffff888149f0d428 of 8 bytes by interrupt on cpu 1: bond_rcv_validate+0x202/0x7a0 drivers/net/bonding/bond_main.c:3335 bond_handle_frame+0xde/0x5e0 drivers/net/bonding/bond_main.c:1533 __netif_receive_skb_core+0x5b1/0x1950 net/core/dev.c:6039 __netif_receive_skb_one_core net/core/dev.c:6150 [inline] __netif_receive_skb+0x59/0x270 net/core/dev.c:6265 netif_receive_skb_internal net/core/dev.c:6351 [inline] netif_receive_skb+0x4b/0x2d0 net/core/dev.c:6410...write to 0xffff888149f0d428 of 8 bytes by interrupt on cpu 0: bond_rcv_validate+0x202/0x7a0 drivers/net/bonding/bond_main.c:3335 bond_handle_frame+0xde/0x5e0 drivers/net/bonding/bond_main.c:1533 __netif_receive_skb_core+0x5b1/0x1950 net/core/dev.c:6039 __netif_receive_skb_one_core net/core/dev.c:6150 [inline] __netif_receive_skb+0x59/0x270 net/core/dev.c:6265 netif_receive_skb_internal net/core/dev.c:6351 [inline] netif_receive_skb+0x4b/0x2d0 net/core/dev.c:6410 br_netif_receive_skb net/bridge/br_input.c:30 [inline] NF_HOOK include/linux/netfilter.h:318 [inline]...value changed: 0x0000000100005365 -> 0x0000000100005366
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:x86/vmware: Fix hypercall clobbersFedora QA reported the following panic: BUG: unable to handle page fault for address: 0000000040003e54 #PF: supervisor write access in kernel mode #PF: error_code(0x0002) - not-present page Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS edk2-20251119-3.fc43 11/19/2025 RIP: 0010:vmware_hypercall4.constprop.0+0x52/0x90 .. Call Trace: vmmouse_report_events+0x13e/0x1b0 psmouse_handle_byte+0x15/0x60 ps2_interrupt+0x8a/0xd0 ...because the QEMU VMware mouse emulation is buggy, and clears the top 32bits of %rdi that the kernel kept a pointer in.The QEMU vmmouse driver saves and restores the register state in a"uint32_t data[6];" and as a result restores the state with the highbits all cleared.RDI originally contained the value of a valid kernel stack address(0xff5eeb3240003e54). After the vmware hypercall it now contains0x40003e54, and we get a page fault as a result when it is dereferenced.The proper fix would be in QEMU, but this works around the issue in thekernel to keep old setups working, when old kernels had not happened tokeep any state in %rdi over the hypercall.In theory this same issue exists for all the hypercalls in the vmmousedriver; in practice it has only been seen with vmware_hypercall3() andvmware_hypercall4(). For now, just mark RDI/RSI as clobbered for thosetwo calls. This should have a minimal effect on code generation overallas it should be rare for the compiler to want to make RDI/RSI liveacross hypercalls.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default < 6.4.0-150700.53.37.1 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:scsi: target: iscsi: Fix use-after-free in iscsit_dec_conn_usage_count()In iscsit_dec_conn_usage_count(), the function calls complete() whileholding the conn->conn_usage_lock. As soon as complete() is invoked, thewaiter (such as iscsit_close_connection()) may wake up and proceed to freethe iscsit_conn structure.If the waiter frees the memory before the current thread reachesspin_unlock_bh(), it results in a KASAN slab-use-after-free as the functionattempts to release a lock within the already-freed connection structure.Fix this by releasing the spinlock before calling complete().
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default < 6.4.0-150700.53.37.1 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:RDMA/siw: Fix potential NULL pointer dereference in header processingIf siw_get_hdr() returns -EINVAL before set_rx_fpdu_context(),qp->rx_fpdu can be NULL. The error path in siw_tcp_rx_data()dereferences qp->rx_fpdu->more_ddp_segs without checking, whichmay lead to a NULL pointer deref. Only check more_ddp_segs whenrx_fpdu is present.KASAN splat:[ 101.384271] KASAN: null-ptr-deref in range [0x00000000000000c0-0x00000000000000c7][ 101.385869] RIP: 0010:siw_tcp_rx_data+0x13ad/0x1e50
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default < 6.4.0-150700.53.37.1 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:nvme: fix memory allocation in nvme_pr_read_keys()nvme_pr_read_keys() takes num_keys from userspace and uses it tocalculate the allocation size for rse via struct_size(). The upperlimit is PR_KEYS_MAX (64K).A malicious or buggy userspace can pass a large num_keys value thatresults in a 4MB allocation attempt at most, causing a warning inthe page allocator when the order exceeds MAX_PAGE_ORDER.To fix this, use kvzalloc() instead of kzalloc().This bug has the same reasoning and fix with the patch below:https://lore.kernel.org/linux-block/20251212013510.3576091-1-kartikey406@gmail.com/Warning log:WARNING: mm/page_alloc.c:5216 at __alloc_frozen_pages_noprof+0x5aa/0x2300 mm/page_alloc.c:5216, CPU#1: syz-executor117/272Modules linked in:CPU: 1 UID: 0 PID: 272 Comm: syz-executor117 Not tainted 6.19.0 #1 PREEMPT(voluntary)Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014RIP: 0010:__alloc_frozen_pages_noprof+0x5aa/0x2300 mm/page_alloc.c:5216Code: ff 83 bd a8 fe ff ff 0a 0f 86 69 fb ff ff 0f b6 1d f9 f9 c4 04 80 fb 01 0f 87 3b 76 30 ff 83 e3 01 75 09 c6 05 e4 f9 c4 04 01 <0f> 0b 48 c7 85 70 fe ff ff 00 00 00 00 e9 8f fd ff ff 31 c0 e9 0dRSP: 0018:ffffc90000fcf450 EFLAGS: 00010246RAX: 0000000000000000 RBX: 0000000000000000 RCX: 1ffff920001f9ea0RDX: 0000000000000000 RSI: 000000000000000b RDI: 0000000000040dc0RBP: ffffc90000fcf648 R08: ffff88800b6c3380 R09: 0000000000000001R10: ffffc90000fcf840 R11: ffff88807ffad280 R12: 0000000000000000R13: 0000000000040dc0 R14: 0000000000000001 R15: ffffc90000fcf620FS: 0000555565db33c0(0000) GS:ffff8880be26c000(0000) knlGS:0000000000000000CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033CR2: 000000002000000c CR3: 0000000003b72000 CR4: 00000000000006f0Call Trace: alloc_pages_mpol+0x236/0x4d0 mm/mempolicy.c:2486 alloc_frozen_pages_noprof+0x149/0x180 mm/mempolicy.c:2557 ___kmalloc_large_node+0x10c/0x140 mm/slub.c:5598 __kmalloc_large_node_noprof+0x25/0xc0 mm/slub.c:5629 __do_kmalloc_node mm/slub.c:5645 [inline] __kmalloc_noprof+0x483/0x6f0 mm/slub.c:5669 kmalloc_noprof include/linux/slab.h:961 [inline] kzalloc_noprof include/linux/slab.h:1094 [inline] nvme_pr_read_keys+0x8f/0x4c0 drivers/nvme/host/pr.c:245 blkdev_pr_read_keys block/ioctl.c:456 [inline] blkdev_common_ioctl+0x1b71/0x29b0 block/ioctl.c:730 blkdev_ioctl+0x299/0x700 block/ioctl.c:786 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl fs/ioctl.c:583 [inline] __x64_sys_ioctl+0x1bf/0x220 fs/ioctl.c:583 x64_sys_call+0x1280/0x21b0 mnt/fuzznvme_1/fuzznvme/linux-build/v6.19/./arch/x86/include/generated/asm/syscalls_64.h:17 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x71/0x330 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x76/0x7eRIP: 0033:0x7fb893d3108dCode: 28 c3 e8 46 1e 00 00 66 0f 1f 44 00 00 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48RSP: 002b:00007ffff61f2f38 EFLAGS: 00000246 ORIG_RAX: 0000000000000010RAX: ffffffffffffffda RBX: 00007ffff61f3138 RCX: 00007fb893d3108dRDX: 0000000020000040 RSI: 00000000c01070ce RDI: 0000000000000003RBP: 0000000000000001 R08: 0000000000000000 R09: 00007ffff61f3138R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001R13: 00007ffff61f3128 R14: 00007fb893dae530 R15: 0000000000000001
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:net: liquidio: Fix off-by-one error in VF setup_nic_devices() cleanupIn setup_nic_devices(), the initialization loop jumps to the labelsetup_nic_dev_free on failure. The current cleanup loop while(i--)skip the failing index i, causing a memory leak.Fix this by changing the loop to iterate from the current index idown to 0.Compile tested only. Issue found using code review.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:net: liquidio: Fix off-by-one error in PF setup_nic_devices() cleanupIn setup_nic_devices(), the initialization loop jumps to the labelsetup_nic_dev_free on failure. The current cleanup loop while(i--)skip the failing index i, causing a memory leak.Fix this by changing the loop to iterate from the current index idown to 0.Also, decrement i in the devlink_alloc failure path to point to thelast successfully allocated index.Compile tested only. Issue found using code review.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:io_uring/rw: free potentially allocated iovec on cache put failureIf a read/write request goes through io_req_rw_cleanup() and has anallocated iovec attached and fails to put to the rw_cache, then it mayend up with an unaccounted iovec pointer. Have io_rw_recycle() returnwhether it recycled the request or not, and use that to gauge whether tofree a potential iovec or not.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default < 6.4.0-150700.53.37.1 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:net/sched: Only allow act_ct to bind to clsact/ingress qdiscs and shared blocksAs Paolo said earlier [1]:"Since the blamed commit below, classify can return TC_ACT_CONSUMED whilethe current skb being held by the defragmentation engine. As reported byGangMin Kim, if such packet is that may cause a UaF when the defrag enginelater on tries to tuch again such packet."act_ct was never meant to be used in the egress path, however some usersare attaching it to egress today [2]. Attempting to reach a middleground, we noticed that, while most qdiscs are not handlingTC_ACT_CONSUMED, clsact/ingress qdiscs are. With that in mind, weaddress the issue by only allowing act_ct to bind to clsact/ingressqdiscs and shared blocks. That way it's still possible to attach act_ct toegress (albeit only with clsact).[1] https://lore.kernel.org/netdev/674b8cbfc385c6f37fb29a1de08d8fe5c2b0fbee.1771321118.git.pabeni@redhat.com/[2] https://lore.kernel.org/netdev/cc6bfb4a-4a2b-42d8-b9ce-7ef6644fb22b@ovn.org/
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default < 6.4.0-150700.53.37.1 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:IB/mthca: Add missed mthca_unmap_user_db() for mthca_create_srq()Fix a user triggerable leak on the system call failure path.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:net: annotate data-races around sk->sk_{data_ready,write_space}skmsg (and probably other layers) are changing these pointerswhile other cpus might read them concurrently.Add corresponding READ_ONCE()/WRITE_ONCE() annotationsfor UDP, TCP and AF_UNIX.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:smb: client: Don't log plaintext credentials in cifs_set_cifscredsWhen debug logging is enabled, cifs_set_cifscreds() logs the keypayload and exposes the plaintext username and password. Remove thedebug log to avoid exposing credentials.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:i40e: Fix preempt count leak in napi poll tracepointUsing get_cpu() in the tracepoint assignment causes an obvious preemptcount leak because nothing invokes put_cpu() to undo it: softirq: huh, entered softirq 3 NET_RX with preempt_count 00000100, exited with 00000101?This clearly has seen a lot of testing in the last 3+ years...Use smp_processor_id() instead.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:cxl/mbox: validate payload size before accessing contents in cxl_payload_from_user_allowed()cxl_payload_from_user_allowed() casts and dereferences the inputpayload without first verifying its size. When a raw mailbox commandis sent with an undersized payload (ie: 1 byte for CXL_MBOX_OP_CLEAR_LOG,which expects a 16-byte UUID), uuid_equal() reads past the allocated buffer,triggering a KASAN splat:BUG: KASAN: slab-out-of-bounds in memcmp+0x176/0x1d0 lib/string.c:683Read of size 8 at addr ffff88810130f5c0 by task syz.1.62/2258CPU: 2 UID: 0 PID: 2258 Comm: syz.1.62 Not tainted 6.19.0-dirty #3 PREEMPT(voluntary)Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.17.0-0-gb52ca86e094d-prebuilt.qemu.org 04/01/2014Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0xab/0xe0 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:378 [inline] print_report+0xce/0x650 mm/kasan/report.c:482 kasan_report+0xce/0x100 mm/kasan/report.c:595 memcmp+0x176/0x1d0 lib/string.c:683 uuid_equal include/linux/uuid.h:73 [inline] cxl_payload_from_user_allowed drivers/cxl/core/mbox.c:345 [inline] cxl_mbox_cmd_ctor drivers/cxl/core/mbox.c:368 [inline] cxl_validate_cmd_from_user drivers/cxl/core/mbox.c:522 [inline] cxl_send_cmd+0x9c0/0xb50 drivers/cxl/core/mbox.c:643 __cxl_memdev_ioctl drivers/cxl/core/memdev.c:698 [inline] cxl_memdev_ioctl+0x14f/0x190 drivers/cxl/core/memdev.c:713 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl fs/ioctl.c:583 [inline] __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:583 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xa8/0x330 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7fRIP: 0033:0x7fdaf331ba79Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48RSP: 002b:00007fdaf1d77038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010RAX: ffffffffffffffda RBX: 00007fdaf3585fa0 RCX: 00007fdaf331ba79RDX: 00002000000001c0 RSI: 00000000c030ce02 RDI: 0000000000000003RBP: 00007fdaf33749df R08: 0000000000000000 R09: 0000000000000000R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000R13: 00007fdaf3586038 R14: 00007fdaf3585fa0 R15: 00007ffced2af768 Add 'in_size' parameter to cxl_payload_from_user_allowed() and validatethe payload is large enough.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:xdp: produce a warning when calculated tailroom is negativeMany ethernet drivers report xdp Rx queue frag size as being the same asDMA write size. However, the only user of this field, namelybpf_xdp_frags_increase_tail(), clearly expects a truesize.Such difference leads to unspecific memory corruption issues under certaincircumstances, e.g. in ixgbevf maximum DMA write size is 3 KB, so whenrunning xskxceiver's XDP_ADJUST_TAIL_GROW_MULTI_BUFF, 6K packet fully usesall DMA-writable space in 2 buffers. This would be fine, if onlyrxq->frag_size was properly set to 4K, but value of 3K results in anegative tailroom, because there is a non-zero page offset.We are supposed to return -EINVAL and be done with it in such case, but dueto tailroom being stored as an unsigned int, it is reported to be somewherenear UINT_MAX, resulting in a tail being grown, even if the requestedoffset is too much (it is around 2K in the abovementioned test). This laterleads to all kinds of unspecific calltraces.[ 7340.337579] xskxceiver[1440]: segfault at 1da718 ip 00007f4161aeac9d sp 00007f41615a6a00 error 6[ 7340.338040] xskxceiver[1441]: segfault at 7f410000000b ip 00000000004042b5 sp 00007f415bffecf0 error 4[ 7340.338179] in libc.so.6[61c9d,7f4161aaf000+160000][ 7340.339230] in xskxceiver[42b5,400000+69000][ 7340.340300] likely on CPU 6 (core 0, socket 6)[ 7340.340302] Code: ff ff 01 e9 f4 fe ff ff 0f 1f 44 00 00 4c 39 f0 74 73 31 c0 ba 01 00 00 00 f0 0f b1 17 0f 85 ba 00 00 00 49 8b 87 88 00 00 00 <4c> 89 70 08 eb cc 0f 1f 44 00 00 48 8d bd f0 fe ff ff 89 85 ec fe[ 7340.340888] likely on CPU 3 (core 0, socket 3)[ 7340.345088] Code: 00 00 00 ba 00 00 00 00 be 00 00 00 00 89 c7 e8 31 ca ff ff 89 45 ec 8b 45 ec 85 c0 78 07 b8 00 00 00 00 eb 46 e8 0b c8 ff ff <8b> 00 83 f8 69 74 24 e8 ff c7 ff ff 8b 00 83 f8 0b 74 18 e8 f3 c7[ 7340.404334] Oops: general protection fault, probably for non-canonical address 0x6d255010bdffc: 0000 [#1] SMP NOPTI[ 7340.405972] CPU: 7 UID: 0 PID: 1439 Comm: xskxceiver Not tainted 6.19.0-rc1+ #21 PREEMPT(lazy)[ 7340.408006] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.17.0-5.fc42 04/01/2014[ 7340.409716] RIP: 0010:lookup_swap_cgroup_id+0x44/0x80[ 7340.410455] Code: 83 f8 1c 73 39 48 ba ff ff ff ff ff ff ff 03 48 8b 04 c5 20 55 fa bd 48 21 d1 48 89 ca 83 e1 01 48 d1 ea c1 e1 04 48 8d 04 90 <8b> 00 48 83 c4 10 d3 e8 c3 cc cc cc cc 31 c0 e9 98 b7 dd 00 48 89[ 7340.412787] RSP: 0018:ffffcc5c04f7f6d0 EFLAGS: 00010202[ 7340.413494] RAX: 0006d255010bdffc RBX: ffff891f477895a8 RCX: 0000000000000010[ 7340.414431] RDX: 0001c17e3fffffff RSI: 00fa070000000000 RDI: 000382fc7fffffff[ 7340.415354] RBP: 00fa070000000000 R08: ffffcc5c04f7f8f8 R09: ffffcc5c04f7f7d0[ 7340.416283] R10: ffff891f4c1a7000 R11: ffffcc5c04f7f9c8 R12: ffffcc5c04f7f7d0[ 7340.417218] R13: 03ffffffffffffff R14: 00fa06fffffffe00 R15: ffff891f47789500[ 7340.418229] FS: 0000000000000000(0000) GS:ffff891ffdfaa000(0000) knlGS:0000000000000000[ 7340.419489] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033[ 7340.420286] CR2: 00007f415bfffd58 CR3: 0000000103f03002 CR4: 0000000000772ef0[ 7340.421237] PKRU: 55555554[ 7340.421623] Call Trace:[ 7340.421987] [ 7340.422309] ? softleaf_from_pte+0x77/0xa0[ 7340.422855] swap_pte_batch+0xa7/0x290[ 7340.423363] zap_nonpresent_ptes.constprop.0.isra.0+0xd1/0x270[ 7340.424102] zap_pte_range+0x281/0x580[ 7340.424607] zap_pmd_range.isra.0+0xc9/0x240[ 7340.425177] unmap_page_range+0x24d/0x420[ 7340.425714] unmap_vmas+0xa1/0x180[ 7340.426185] exit_mmap+0xe1/0x3b0[ 7340.426644] __mmput+0x41/0x150[ 7340.427098] exit_mm+0xb1/0x110[ 7340.427539] do_exit+0x1b2/0x460[ 7340.427992] do_group_exit+0x2d/0xc0[ 7340.428477] get_signal+0x79d/0x7e0[ 7340.428957] arch_do_signal_or_restart+0x34/0x100[ 7340.429571] exit_to_user_mode_loop+0x8e/0x4c0[ 7340.430159] do_syscall_64+0x188/---truncated---
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:arm64: io: Extract user memory type in ioremap_prot()The only caller of ioremap_prot() outside of the generic ioremap()implementation is generic_access_phys(), which passes a 'pgprot_t' valuedetermined from the user mapping of the target 'pfn' being accessed bythe kernel. On arm64, the 'pgprot_t' contains all of the non-addressbits from the pte, including the permission controls, and so we end upreturning a new user mapping from ioremap_prot() which faults whenaccessed from the kernel on systems with PAN: | Unable to handle kernel read from unreadable memory at virtual address ffff80008ea89000 | ... | Call trace: | __memcpy_fromio+0x80/0xf8 | generic_access_phys+0x20c/0x2b8 | __access_remote_vm+0x46c/0x5b8 | access_remote_vm+0x18/0x30 | environ_read+0x238/0x3e8 | vfs_read+0xe4/0x2b0 | ksys_read+0xcc/0x178 | __arm64_sys_read+0x4c/0x68Extract only the memory type from the user 'pgprot_t' in ioremap_prot()and assert that we're being passed a user mapping, to protect us againstany changes in future that may require additional handling. To avoidfalsely flagging users of ioremap(), provide our own ioremap() macrowhich simply wraps __ioremap_prot().
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:cxl: Fix race of nvdimm_bus object when creating nvdimm objectsFound issue during running of cxl-translate.sh unit test. Adding a 3ssleep right before the test seems to make the issue reproduce fairlyconsistently. The cxl_translate module has dependency on cxl_acpi andcauses orphaned nvdimm objects to reprobe after cxl_acpi is removed.The nvdimm_bus object is registered by the cxl_nvb object whencxl_acpi_probe() is called. With the nvdimm_bus object missing,__nd_device_register() will trigger NULL pointer dereference whenaccessing the dev->parent that points to &nvdimm_bus->dev.[ 192.884510] BUG: kernel NULL pointer dereference, address: 000000000000006c[ 192.895383] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS edk2-20250812-19.fc42 08/12/2025[ 192.897721] Workqueue: cxl_port cxl_bus_rescan_queue [cxl_core][ 192.899459] RIP: 0010:kobject_get+0xc/0x90[ 192.924871] Call Trace:[ 192.925959] [ 192.926976] ? pm_runtime_init+0xb9/0xe0[ 192.929712] __nd_device_register.part.0+0x4d/0xc0 [libnvdimm][ 192.933314] __nvdimm_create+0x206/0x290 [libnvdimm][ 192.936662] cxl_nvdimm_probe+0x119/0x1d0 [cxl_pmem][ 192.940245] cxl_bus_probe+0x1a/0x60 [cxl_core][ 192.943349] really_probe+0xde/0x380This patch also relies on the previous change wheredevm_cxl_add_nvdimm_bridge() is called from drivers/cxl/pmem.c insteadof drivers/cxl/core.c to ensure the dependency of cxl_acpi on cxl_pmem.1. Set probe_type of cxl_nvb to PROBE_FORCE_SYNCHRONOUS to ensure the driver is probed synchronously when add_device() is called.2. Add a check in __devm_cxl_add_nvdimm_bridge() to ensure that the cxl_nvb driver is attached during cxl_acpi_probe().3. Take the cxl_root uport_dev lock and the cxl_nvb->dev lock in devm_cxl_add_nvdimm() before checking nvdimm_bus is valid.4. Set cxl_nvdimm flag to CXL_NVD_F_INVALIDATED so cxl_nvdimm_probe() will exit with -EBUSY.The removal of cxl_nvdimm devices should prevent any orphaned devicesfrom probing once the nvdimm_bus is gone.[ dj: Fixed 0-day reported kdoc issue. ][ dj: Fix cxl_nvb reference leak on error. Gregory (kreview-0811365) ]
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:netfilter: nft_set_pipapo: split gc into unlink and reclaim phaseYiming Qian reports Use-after-free in the pipapo set type: Under a large number of expired elements, commit-time GC can run for a very long time in a non-preemptible context, triggering soft lockup warnings and RCU stall reports (local denial of service).We must split GC in an unlink and a reclaim phase.We cannot queue elements for freeing until pointers have been swapped.Expired elements are still exposed to both the packet path and userspacedumpers via the live copy of the data structure.call_rcu() does not protect us: dump operations or element lookups startingafter call_rcu has fired can still observe the free'd element, unless thecommit phase has made enough progress to swap the clone and live pointersbefore any new reader has picked up the old version.This a similar approach as done recently for the rbtree backend in commit35f83a75529a ("netfilter: nft_set_rbtree: don't gc elements on insert").
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:x86/efi: defer freeing of boot services memoryefi_free_boot_services() frees memory occupied by EFI_BOOT_SERVICES_CODEand EFI_BOOT_SERVICES_DATA using memblock_free_late().There are two issue with that: memblock_free_late() should be used formemory allocated with memblock_alloc() while the memory reserved withmemblock_reserve() should be freed with free_reserved_area().More acutely, with CONFIG_DEFERRED_STRUCT_PAGE_INIT=yefi_free_boot_services() is called before deferred initialization of thememory map is complete.Benjamin Herrenschmidt reports that this causes a leak of ~140MB ofRAM on EC2 t3a.nano instances which only have 512MB or RAM.If the freed memory resides in the areas that memory map for them isstill uninitialized, they won't be actually freed becausememblock_free_late() calls memblock_free_pages() and the latter skipsuninitialized pages.Using free_reserved_area() at this point is also problematic because__free_page() accesses the buddy of the freed page and that again mightend up in uninitialized part of the memory map.Delaying the entire efi_free_boot_services() could be problematicbecause in addition to freeing boot services memory it updatesefi.memmap without any synchronization and that's undesirable late inboot when there is concurrency.More robust approach is to only defer freeing of the EFI boot servicesmemory.Split efi_free_boot_services() in two. First efi_unmap_boot_services()collects ranges that should be freed into an array thenefi_free_boot_services() later frees them after deferred init is complete.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:x86/fred: Correct speculative safety in fred_extint()array_index_nospec() is no use if the result gets spilled to the stack, asit makes the believed safe-under-speculation value subject to memorypredictions.For all practical purposes, this means array_index_nospec() must be used inthe expression that accesses the array.As the code currently stands, it's the wrong side of irqentry_enter(), and'index' is put into %ebp across the function call.Remove the index variable and reposition array_index_nospec(), so it'scalculated immediately before the array access.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:net: phy: register phy led_triggers during probe to avoid AB-BA deadlockThere is an AB-BA deadlock when both LEDS_TRIGGER_NETDEV andLED_TRIGGER_PHY are enabled:[ 1362.049207] [<8054e4b8>] led_trigger_register+0x5c/0x1fc <-- Trying to get lock "triggers_list_lock" via down_write(&triggers_list_lock);[ 1362.054536] [<80662830>] phy_led_triggers_register+0xd0/0x234[ 1362.060329] [<8065e200>] phy_attach_direct+0x33c/0x40c[ 1362.065489] [<80651fc4>] phylink_fwnode_phy_connect+0x15c/0x23c[ 1362.071480] [<8066ee18>] mtk_open+0x7c/0xba0[ 1362.075849] [<806d714c>] __dev_open+0x280/0x2b0[ 1362.080384] [<806d7668>] __dev_change_flags+0x244/0x24c[ 1362.085598] [<806d7698>] dev_change_flags+0x28/0x78[ 1362.090528] [<807150e4>] dev_ioctl+0x4c0/0x654 <-- Hold lock "rtnl_mutex" by calling rtnl_lock();[ 1362.094985] [<80694360>] sock_ioctl+0x2f4/0x4e0[ 1362.099567] [<802e9c4c>] sys_ioctl+0x32c/0xd8c[ 1362.104022] [<80014504>] syscall_common+0x34/0x58Here LED_TRIGGER_PHY is registering LED triggers during phy_attachwhile holding RTNL and then taking triggers_list_lock.[ 1362.191101] [<806c2640>] register_netdevice_notifier+0x60/0x168 <-- Trying to get lock "rtnl_mutex" via rtnl_lock();[ 1362.197073] [<805504ac>] netdev_trig_activate+0x194/0x1e4[ 1362.202490] [<8054e28c>] led_trigger_set+0x1d4/0x360 <-- Hold lock "triggers_list_lock" by down_read(&triggers_list_lock);[ 1362.207511] [<8054eb38>] led_trigger_write+0xd8/0x14c[ 1362.212566] [<80381d98>] sysfs_kf_bin_write+0x80/0xbc[ 1362.217688] [<8037fcd8>] kernfs_fop_write_iter+0x17c/0x28c[ 1362.223174] [<802cbd70>] vfs_write+0x21c/0x3c4[ 1362.227712] [<802cc0c4>] ksys_write+0x78/0x12c[ 1362.232164] [<80014504>] syscall_common+0x34/0x58Here LEDS_TRIGGER_NETDEV is being enabled on an LED. It first takestriggers_list_lock and then RTNL. A classical AB-BA deadlock.phy_led_triggers_registers() does not require the RTNL, it does notmake any calls into the network stack which require protection. Thereis also no requirement the PHY has been attached to a MAC, thetriggers only make use of phydev state. This allows the call tophy_led_triggers_registers() to be placed elsewhere. PHY probe() andrelease() don't hold RTNL, so solving the AB-BA deadlock.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:blktrace: fix __this_cpu_read/write in preemptible contexttracing_record_cmdline() internally uses __this_cpu_read() and__this_cpu_write() on the per-CPU variable trace_cmdline_save, andtrace_save_cmdline() explicitly asserts preemption is disabled vialockdep_assert_preemption_disabled(). These operations are only safewhen preemption is off, as they were designed to be called from thescheduler context (probe_wakeup_sched_switch() / probe_wakeup()).__blk_add_trace() was calling tracing_record_cmdline(current) early inthe blk_tracer path, before ring buffer reservation, from processcontext where preemption is fully enabled. This triggers the followingusing blktests/blktrace/002:blktrace/002 (blktrace ftrace corruption with sysfs trace) [failed] runtime 0.367s ... 0.437s something found in dmesg: [ 81.211018] run blktests blktrace/002 at 2026-02-25 22:24:33 [ 81.239580] null_blk: disk nullb1 created [ 81.357294] BUG: using __this_cpu_read() in preemptible [00000000] code: dd/2516 [ 81.362842] caller is tracing_record_cmdline+0x10/0x40 [ 81.362872] CPU: 16 UID: 0 PID: 2516 Comm: dd Tainted: G N 7.0.0-rc1lblk+ #84 PREEMPT(full) [ 81.362877] Tainted: [N]=TEST [ 81.362878] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.17.0-0-gb52ca86e094d-prebuilt.qemu.org 04/01/2014 [ 81.362881] Call Trace: [ 81.362884] [ 81.362886] dump_stack_lvl+0x8d/0xb0 ... (See '/mnt/sda/blktests/results/nodev/blktrace/002.dmesg' for the entire message)[ 81.211018] run blktests blktrace/002 at 2026-02-25 22:24:33[ 81.239580] null_blk: disk nullb1 created[ 81.357294] BUG: using __this_cpu_read() in preemptible [00000000] code: dd/2516[ 81.362842] caller is tracing_record_cmdline+0x10/0x40[ 81.362872] CPU: 16 UID: 0 PID: 2516 Comm: dd Tainted: G N 7.0.0-rc1lblk+ #84 PREEMPT(full)[ 81.362877] Tainted: [N]=TEST[ 81.362878] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.17.0-0-gb52ca86e094d-prebuilt.qemu.org 04/01/2014[ 81.362881] Call Trace:[ 81.362884] [ 81.362886] dump_stack_lvl+0x8d/0xb0[ 81.362895] check_preemption_disabled+0xce/0xe0[ 81.362902] tracing_record_cmdline+0x10/0x40[ 81.362923] __blk_add_trace+0x307/0x5d0[ 81.362934] ? lock_acquire+0xe0/0x300[ 81.362940] ? iov_iter_extract_pages+0x101/0xa30[ 81.362959] blk_add_trace_bio+0x106/0x1e0[ 81.362968] submit_bio_noacct_nocheck+0x24b/0x3a0[ 81.362979] ? lockdep_init_map_type+0x58/0x260[ 81.362988] submit_bio_wait+0x56/0x90[ 81.363009] __blkdev_direct_IO_simple+0x16c/0x250[ 81.363026] ? __pfx_submit_bio_wait_endio+0x10/0x10[ 81.363038] ? rcu_read_lock_any_held+0x73/0xa0[ 81.363051] blkdev_read_iter+0xc1/0x140[ 81.363059] vfs_read+0x20b/0x330[ 81.363083] ksys_read+0x67/0xe0[ 81.363090] do_syscall_64+0xbf/0xf00[ 81.363102] entry_SYSCALL_64_after_hwframe+0x76/0x7e[ 81.363106] RIP: 0033:0x7f281906029d[ 81.363111] Code: 31 c0 e9 c6 fe ff ff 50 48 8d 3d 66 63 0a 00 e8 59 ff 01 00 66 0f 1f 84 00 00 00 00 00 80 3d 41 33 0e 00 00 74 17 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 5b c3 66 2e 0f 1f 84 00 00 00 00 00 48 83 ec[ 81.363113] RSP: 002b:00007ffca127dd48 EFLAGS: 00000246 ORIG_RAX: 0000000000000000[ 81.363120] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f281906029d[ 81.363122] RDX: 0000000000001000 RSI: 0000559f8bfae000 RDI: 0000000000000000[ 81.363123] RBP: 0000000000001000 R08: 0000002863a10a81 R09: 00007f281915f000[ 81.363124] R10: 00007f2818f77b60 R11: 0000000000000246 R12: 0000559f8bfae000[ 81.363126] R13: 0000000000000000 R14: 0000000000000000 R15: 000000000000000a[ 81.363142] The same BUG fires from blk_add_trace_plug(), blk_add_trace_unplug(),and blk_add_trace_rq() paths as well.The purpose of tracin---truncated---
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:nvmet-fcloop: Check remoteport port_state before calling done callbackIn nvme_fc_handle_ls_rqst_work, the lsrsp->done callback is only set whenremoteport->port_state is FC_OBJSTATE_ONLINE. Otherwise, thenvme_fc_xmt_ls_rsp's LLDD call to lport->ops->xmt_ls_rsp is expected tofail and the nvme-fc transport layer itself will directly callnvme_fc_xmt_ls_rsp_free instead of relying on LLDD's done callback to freethe lsrsp resources.Update the fcloop_t2h_xmt_ls_rsp routine to check remoteport->port_state.If online, then lsrsp->done callback will free the lsrsp. Else, return-ENODEV to signal the nvme-fc transport to handle freeing lsrsp.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:ice: change XDP RxQ frag_size from DMA write length to xdp.frame_szThe only user of frag_size field in XDP RxQ info isbpf_xdp_frags_increase_tail(). It clearly expects whole buff size insteadof DMA write size. Different assumptions in ice driver configuration leadto negative tailroom.This allows to trigger kernel panic, when usingXDP_ADJUST_TAIL_GROW_MULTI_BUFF xskxceiver test and changing packet size to6912 and the requested offset to a huge value, e.g.XSK_UMEM__MAX_FRAME_SIZE * 100.Due to other quirks of the ZC configuration in ice, panic is not observedin ZC mode, but tailroom growing still fails when it should not.Use fill queue buffer truesize instead of DMA write size in XDP RxQ info.Fix ZC mode too by using the new helper.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:net/sched: ets: fix divide by zero in the offload pathOffloading ETS requires computing each class' WRR weight: this is done byaveraging over the sums of quanta as 'q_sum' and 'q_psum'. Using unsignedint, the same integer size as the individual DRR quanta, can overflow andeven cause division by zero, like it happened in the following splat: Oops: divide error: 0000 [#1] SMP PTI CPU: 13 UID: 0 PID: 487 Comm: tc Tainted: G E 6.19.0-virtme #45 PREEMPT(full) Tainted: [E]=UNSIGNED_MODULE Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 RIP: 0010:ets_offload_change+0x11f/0x290 [sch_ets] Code: e4 45 31 ff eb 03 41 89 c7 41 89 cb 89 ce 83 f9 0f 0f 87 b7 00 00 00 45 8b 08 31 c0 45 01 cc 45 85 c9 74 09 41 6b c4 64 31 d2 <41> f7 f2 89 c2 44 29 fa 45 89 df 41 83 fb 0f 0f 87 c7 00 00 00 44 RSP: 0018:ffffd0a180d77588 EFLAGS: 00010246 RAX: 00000000ffffff38 RBX: ffff8d3d482ca000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffd0a180d77660 RBP: ffffd0a180d77690 R08: ffff8d3d482ca2d8 R09: 00000000fffffffe R10: 0000000000000000 R11: 0000000000000000 R12: 00000000fffffffe R13: ffff8d3d472f2000 R14: 0000000000000003 R15: 0000000000000000 FS: 00007f440b6c2740(0000) GS:ffff8d3dc9803000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000003cdd2000 CR3: 0000000007b58002 CR4: 0000000000172ef0 Call Trace: ets_qdisc_change+0x870/0xf40 [sch_ets] qdisc_create+0x12b/0x540 tc_modify_qdisc+0x6d7/0xbd0 rtnetlink_rcv_msg+0x168/0x6b0 netlink_rcv_skb+0x5c/0x110 netlink_unicast+0x1d6/0x2b0 netlink_sendmsg+0x22e/0x470 ____sys_sendmsg+0x38a/0x3c0 ___sys_sendmsg+0x99/0xe0 __sys_sendmsg+0x8a/0xf0 do_syscall_64+0x111/0xf80 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f440b81c77e Code: 4d 89 d8 e8 d4 bc 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa RSP: 002b:00007fff951e4c10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000481820 RCX: 00007f440b81c77e RDX: 0000000000000000 RSI: 00007fff951e4cd0 RDI: 0000000000000003 RBP: 00007fff951e4c20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff951f4fa8 R13: 00000000699ddede R14: 00007f440bb01000 R15: 0000000000486980 Modules linked in: sch_ets(E) netdevsim(E) ---[ end trace 0000000000000000 ]--- RIP: 0010:ets_offload_change+0x11f/0x290 [sch_ets] Code: e4 45 31 ff eb 03 41 89 c7 41 89 cb 89 ce 83 f9 0f 0f 87 b7 00 00 00 45 8b 08 31 c0 45 01 cc 45 85 c9 74 09 41 6b c4 64 31 d2 <41> f7 f2 89 c2 44 29 fa 45 89 df 41 83 fb 0f 0f 87 c7 00 00 00 44 RSP: 0018:ffffd0a180d77588 EFLAGS: 00010246 RAX: 00000000ffffff38 RBX: ffff8d3d482ca000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffd0a180d77660 RBP: ffffd0a180d77690 R08: ffff8d3d482ca2d8 R09: 00000000fffffffe R10: 0000000000000000 R11: 0000000000000000 R12: 00000000fffffffe R13: ffff8d3d472f2000 R14: 0000000000000003 R15: 0000000000000000 FS: 00007f440b6c2740(0000) GS:ffff8d3dc9803000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000003cdd2000 CR3: 0000000007b58002 CR4: 0000000000172ef0 Kernel panic - not syncing: Fatal exception Kernel Offset: 0x30000000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) ---[ end Kernel panic - not syncing: Fatal exception ]---Fix this using 64-bit integers for 'q_sum' and 'q_psum'.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default < 6.4.0-150700.53.37.1 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:net: bridge: fix nd_tbl NULL dereference when IPv6 is disabledWhen booting with the 'ipv6.disable=1' parameter, the nd_tbl is neverinitialized because inet6_init() exits before ndisc_init() is calledwhich initializes it. Then, if neigh_suppress is enabled and an ICMPv6Neighbor Discovery packet reaches the bridge, br_do_suppress_nd() willdereference ipv6_stub->nd_tbl which is NULL, passing it toneigh_lookup(). This causes a kernel NULL pointer dereference. BUG: kernel NULL pointer dereference, address: 0000000000000268 Oops: 0000 [#1] PREEMPT SMP NOPTI [...] RIP: 0010:neigh_lookup+0x16/0xe0 [...] Call Trace: ? neigh_lookup+0x16/0xe0 br_do_suppress_nd+0x160/0x290 [bridge] br_handle_frame_finish+0x500/0x620 [bridge] br_handle_frame+0x353/0x440 [bridge] __netif_receive_skb_core.constprop.0+0x298/0x1110 __netif_receive_skb_one_core+0x3d/0xa0 process_backlog+0xa0/0x140 __napi_poll+0x2c/0x170 net_rx_action+0x2c4/0x3a0 handle_softirqs+0xd0/0x270 do_softirq+0x3f/0x60Fix this by replacing IS_ENABLED(IPV6) call with ipv6_mod_enabled() inthe callers. This is in essence disabling NS/NA suppression when IPv6 isdisabled.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default < 6.4.0-150700.53.37.1 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:HID: Add HID_CLAIMED_INPUT guards in raw_event callbacks missing themIn commit 2ff5baa9b527 ("HID: appleir: Fix potential NULL dereference atraw event handle"), we handle the fact that raw event callbackscan happen even for a HID device that has not been "claimed" causing acrash if a broken device were attempted to be connected to the system.Fix up the remaining in-tree HID drivers that forgot to add this samecheck to resolve the same issue.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:bpf, arm64: Force 8-byte alignment for JIT buffer to prevent atomic tearingstruct bpf_plt contains a u64 target field. Currently, the BPF JITallocator requests an alignment of 4 bytes (sizeof(u32)) for the JITbuffer.Because the base address of the JIT buffer can be 4-byte aligned (e.g.,ending in 0x4 or 0xc), the relative padding logic in build_plt() failsto ensure that target lands on an 8-byte boundary.This leads to two issues:1. UBSAN reports misaligned-access warnings when dereferencing the structure.2. More critically, target is updated concurrently via WRITE_ONCE() in bpf_arch_text_poke() while the JIT'd code executes ldr. On arm64, 64-bit loads/stores are only guaranteed to be single-copy atomic if they are 64-bit aligned. A misaligned target risks a torn read, causing the JIT to jump to a corrupted address.Fix this by increasing the allocation alignment requirement to 8 bytes(sizeof(u64)) in bpf_jit_binary_pack_alloc(). This anchors the base ofthe JIT buffer to an 8-byte boundary, allowing the relative padding mathin build_plt() to correctly align the target field.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:gve: fix incorrect buffer cleanup in gve_tx_clean_pending_packets for QPLIn DQ-QPL mode, gve_tx_clean_pending_packets() incorrectly uses the RDAbuffer cleanup path. It iterates num_bufs times and attempts to unmapentries in the dma array.This leads to two issues:1. The dma array shares storage with tx_qpl_buf_ids (union). Interpreting buffer IDs as DMA addresses results in attempting to unmap incorrect memory locations.2. num_bufs in QPL mode (counting 2K chunks) can significantly exceed the size of the dma array, causing out-of-bounds access warnings(trace below is how we noticed this issue).UBSAN: array-index-out-of-bounds indrivers/net/ethernet/drivers/net/ethernet/google/gve/gve_tx_dqo.c:178:5 index 18 is out ofrange for type 'dma_addr_t[18]' (aka 'unsigned long long[18]')Workqueue: gve gve_service_task [gve]Call Trace:dump_stack_lvl+0x33/0xa0__ubsan_handle_out_of_bounds+0xdc/0x110gve_tx_stop_ring_dqo+0x182/0x200 [gve]gve_close+0x1be/0x450 [gve]gve_reset+0x99/0x120 [gve]gve_service_task+0x61/0x100 [gve]process_scheduled_works+0x1e9/0x380Fix this by properly checking for QPL mode and delegating togve_free_tx_qpl_bufs() to reclaim the buffers.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default < 6.4.0-150700.53.37.1 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:ice: Fix memory leak in ice_set_ringparam()In ice_set_ringparam, tx_rings and xdp_rings are allocated beforerx_rings. If the allocation of rx_rings fails, the code jumps tothe done label leaking both tx_rings and xdp_rings. Furthermore, ifthe setup of an individual Rx ring fails during the loop, the code jumpsto the free_tx label which releases tx_rings but leaks xdp_rings.Fix this by introducing a free_xdp label and updating the error paths toensure both xdp_rings and tx_rings are properly freed if rx_ringsallocation or setup fails.Compile tested only. Issue found using a prototype static analysis tooland code review.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:netfilter: xt_CT: drop pending enqueued packets on template removalTemplates refer to objects that can go away while packets are sitting innfqueue refer to:- helper, this can be an issue on module removal.- timeout policy, nfnetlink_cttimeout might remove it.The use of templates with zone and event cache filter are safe, sincethis just copies values.Flush these enqueued packets in case the template rule gets removed.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:net/rds: Fix circular locking dependency in rds_tcp_tunesyzbot reported a circular locking dependency in rds_tcp_tune() wheresk_net_refcnt_upgrade() is called while holding the socket lock:======================================================WARNING: possible circular locking dependency detected======================================================kworker/u10:8/15040 is trying to acquire lock:ffffffff8e9aaf80 (fs_reclaim){+.+.}-{0:0},at: __kmalloc_cache_noprof+0x4b/0x6f0but task is already holding lock:ffff88805a3c1ce0 (k-sk_lock-AF_INET6){+.+.}-{0:0},at: rds_tcp_tune+0xd7/0x930The issue occurs because sk_net_refcnt_upgrade() performs memoryallocation (via get_net_track() -> ref_tracker_alloc()) while thesocket lock is held, creating a circular dependency with fs_reclaim.Fix this by moving sk_net_refcnt_upgrade() outside the socket lockcritical section. This is safe because the fields modified by thesk_net_refcnt_upgrade() call (sk_net_refcnt, ns_tracker) are notaccessed by any concurrent code path at this point.v2: - Corrected fixes tag - check patch line wrap nits - ai commentary nits
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:net: mvpp2: guard flow control update with global_tx_fc in buffer switchingmvpp2_bm_switch_buffers() unconditionally callsmvpp2_bm_pool_update_priv_fc() when switching between per-cpu andshared buffer pool modes. This function programs CM3 flow controlregisters via mvpp2_cm3_read()/mvpp2_cm3_write(), which dereferencepriv->cm3_base without any NULL check.When the CM3 SRAM resource is not present in the device tree (thethird reg entry added by commit 60523583b07c ("dts: marvell: add CM3SRAM memory to cp11x ethernet device tree")), priv->cm3_base remainsNULL and priv->global_tx_fc is false. Any operation that triggersmvpp2_bm_switch_buffers(), for example an MTU change that crossesthe jumbo frame threshold, will crash: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 Mem abort info: ESR = 0x0000000096000006 EC = 0x25: DABT (current EL), IL = 32 bits pc : readl+0x0/0x18 lr : mvpp2_cm3_read.isra.0+0x14/0x20 Call trace: readl+0x0/0x18 mvpp2_bm_pool_update_fc+0x40/0x12c mvpp2_bm_pool_update_priv_fc+0x94/0xd8 mvpp2_bm_switch_buffers.isra.0+0x80/0x1c0 mvpp2_change_mtu+0x140/0x380 __dev_set_mtu+0x1c/0x38 dev_set_mtu_ext+0x78/0x118 dev_set_mtu+0x48/0xa8 dev_ifsioc+0x21c/0x43c dev_ioctl+0x2d8/0x42c sock_ioctl+0x314/0x378Every other flow control call site in the driver already guardshardware access with either priv->global_tx_fc or port->tx_fc.mvpp2_bm_switch_buffers() is the only place that omits this check.Add the missing priv->global_tx_fc guard to both the disable andre-enable calls in mvpp2_bm_switch_buffers(), consistent with therest of the driver.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:udp_tunnel: fix NULL deref caused by udp_sock_create6 when CONFIG_IPV6=nWhen CONFIG_IPV6 is disabled, the udp_sock_create6() function returns 0(success) without actually creating a socket. Callers such asfou_create() then proceed to dereference the uninitialized socketpointer, resulting in a NULL pointer dereference.The captured NULL deref crash: BUG: kernel NULL pointer dereference, address: 0000000000000018 RIP: 0010:fou_nl_add_doit (net/ipv4/fou_core.c:590 net/ipv4/fou_core.c:764) [...] Call Trace: genl_family_rcv_msg_doit.constprop.0 (net/netlink/genetlink.c:1114) genl_rcv_msg (net/netlink/genetlink.c:1194 net/netlink/genetlink.c:1209) [...] netlink_rcv_skb (net/netlink/af_netlink.c:2550) genl_rcv (net/netlink/genetlink.c:1219) netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344) netlink_sendmsg (net/netlink/af_netlink.c:1894) __sock_sendmsg (net/socket.c:727 (discriminator 1) net/socket.c:742 (discriminator 1)) __sys_sendto (./include/linux/file.h:62 (discriminator 1) ./include/linux/file.h:83 (discriminator 1) net/socket.c:2183 (discriminator 1)) __x64_sys_sendto (net/socket.c:2213 (discriminator 1) net/socket.c:2209 (discriminator 1) net/socket.c:2209 (discriminator 1)) do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1)) entry_SYSCALL_64_after_hwframe (net/arch/x86/entry/entry_64.S:130)This patch makes udp_sock_create6 return -EPFNOSUPPORT instead, socallers correctly take their error paths. There is only one caller ofthe vulnerable function and only privileged users can trigger it.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:igc: fix page fault in XDP TX timestamps handlingIf an XDP application that requested TX timestamping is shutting downwhile the link of the interface in use is still up the following kernelsplat is reported:[ 883.803618] [ T1554] BUG: unable to handle page fault for address: ffffcfb6200fd008...[ 883.803650] [ T1554] Call Trace:[ 883.803652] [ T1554] [ 883.803654] [ T1554] igc_ptp_tx_tstamp_event+0xdf/0x160 [igc][ 883.803660] [ T1554] igc_tsync_interrupt+0x2d5/0x300 [igc]...During shutdown of the TX ring the xsk_meta pointers are left behind, sothat the IRQ handler is trying to touch them.This issue is now being fixed by cleaning up the stale xsk meta data onTX shutdown. TX timestamps on other queues remain unaffected.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:drm/amdgpu: Limit BO list entry count to prevent resource exhaustionUserspace can pass an arbitrary number of BO list entries via thebo_number field. Although the previous multiplication overflow checkprevents out-of-bounds allocation, a large number of entries could stillcause excessive memory allocation (up to potentially gigabytes) andunnecessarily long list processing times.Introduce a hard limit of 128k entries per BO list, which is more thansufficient for any realistic use case (e.g., a single list containing allbuffers in a large scene). This prevents memory exhaustion attacks andensures predictable performance.Return -EINVAL if the requested entry count exceeds the limit(cherry picked from commit 688b87d39e0aa8135105b40dc167d74b5ada5332)
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: Requests is a HTTP library. Prior to version 2.33.0, the `requests.utils.extract_zipped_paths()` utility function uses a predictable filename when extracting files from zip archives into the system temporary directory. If the target file already exists, it is reused without validation. A local attacker with write access to the temp directory could pre-create a malicious file that would be loaded in place of the legitimate one. Standard usage of the Requests library is not affected by this vulnerability. Only applications that call `extract_zipped_paths()` directly are impacted. Starting in version 2.33.0, the library extracts files to a non-deterministic location. If developers are unable to upgrade, they can set `TMPDIR` in their environment to a directory with restricted write access.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- python3-requests < 2.25.1-150300.3.21.1 (version in image is 2.25.1-150300.3.18.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:net: atm: fix crash due to unvalidated vcc pointer in sigd_send()Reproducer available at [1].The ATM send path (sendmsg -> vcc_sendmsg -> sigd_send) reads the vccpointer from msg->vcc and uses it directly without any validation. Thispointer comes from userspace via sendmsg() and can be arbitrarily forged: int fd = socket(AF_ATMSVC, SOCK_DGRAM, 0); ioctl(fd, ATMSIGD_CTRL); // become ATM signaling daemon struct msghdr msg = { .msg_iov = &iov, ... }; *(unsigned long *)(buf + 4) = 0xdeadbeef; // fake vcc pointer sendmsg(fd, &msg, 0); // kernel dereferences 0xdeadbeefIn normal operation, the kernel sends the vcc pointer to the signalingdaemon via sigd_enq() when processing operations like connect(), bind(),or listen(). The daemon is expected to return the same pointer whenresponding. However, a malicious daemon can send arbitrary pointer values.Fix this by introducing find_get_vcc() which validates the pointer bysearching through vcc_hash (similar to how sigd_close() iterates overall VCCs), and acquires a reference via sock_hold() if found.Since struct atm_vcc embeds struct sock as its first member, they sharethe same lifetime. Therefore using sock_hold/sock_put is sufficient tokeep the vcc alive while it is being used.Note that there may be a race with sigd_close() which could mark the vccwith various flags (e.g., ATM_VF_RELEASED) after find_get_vcc() returns.However, sock_hold() guarantees the memory remains valid, so this raceonly affects the logical state, not memory safety.[1]: https://gist.github.com/mrpre/1ba5949c45529c511152e2f4c755b0f3
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:netfilter: nf_conntrack_expect: use expect->helperUse expect->helper in ctnetlink and /proc to dump the helper name.Using nfct_help() without holding a reference to the master conntrackis unsafe.Use exp->master->helper in ctnetlink path if userspace does not providean explicit helper when creating an expectation to retain the existingbehaviour. The ctnetlink expectation path holds the reference on themaster conntrack and nf_conntrack_expect lock and the nfnetlink gluepath refers to the master ct that is attached to the skb.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:netfilter: ipset: drop logically empty buckets in mtype_delmtype_del() counts empty slots below n->pos in k, but it only drops thebucket when both n->pos and k are zero. This misses buckets whose liveentries have all been removed while n->pos still points past deleted slots.Treat a bucket as empty when all positions below n->pos are unused andrelease it directly instead of shrinking it further.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:bridge: mrp: reject zero test interval to avoid OOM panicbr_mrp_start_test() and br_mrp_start_in_test() accept the user-suppliedinterval value from netlink without validation. When interval is 0,usecs_to_jiffies(0) yields 0, causing the delayed work(br_mrp_test_work_expired / br_mrp_in_test_work_expired) to rescheduleitself with zero delay. This creates a tight loop on system_percpu_wqthat allocates and transmits MRP test frames at maximum rate, exhaustingall system memory and causing a kernel panic via OOM deadlock.The same zero-interval issue applies to br_mrp_start_in_test_parse()for interconnect test frames.Use NLA_POLICY_MIN(NLA_U32, 1) in the nla_policy tables for bothIFLA_BRIDGE_MRP_START_TEST_INTERVAL andIFLA_BRIDGE_MRP_START_IN_TEST_INTERVAL, so zero is rejected at thenetlink attribute parsing layer before the value ever reaches theworkqueue scheduling code. This is consistent with how other bridgesubsystems (br_fdb, br_mst) enforce range constraints on netlinkattributes.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:net/sched: cls_fw: fix NULL pointer dereference on shared blocksThe old-method path in fw_classify() calls tcf_block_q() anddereferences q->handle. Shared blocks leave block->q NULL, causing aNULL deref when an empty cls_fw filter is attached to a shared blockand a packet with a nonzero major skb mark is classified.Reject the configuration in fw_change() when the old method (noTCA_OPTIONS) is used on a shared block, since fw_classify()'sold-method path needs block->q which is NULL for shared blocks.The fixed null-ptr-deref calling stack: KASAN: null-ptr-deref in range [0x0000000000000038-0x000000000000003f] RIP: 0010:fw_classify (net/sched/cls_fw.c:81) Call Trace: tcf_classify (./include/net/tc_wrapper.h:197 net/sched/cls_api.c:1764 net/sched/cls_api.c:1860) tc_run (net/core/dev.c:4401) __dev_queue_xmit (net/core/dev.c:4535 net/core/dev.c:4790)
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:net/sched: cls_flow: fix NULL pointer dereference on shared blocksflow_change() calls tcf_block_q() and dereferences q->handle to derivea default baseclass. Shared blocks leave block->q NULL, causing a NULLderef when a flow filter without a fully qualified baseclass is createdon a shared block.Check tcf_block_shared() before accessing block->q and return -EINVALfor shared blocks. This avoids the null-deref shown below:=======================================================================KASAN: null-ptr-deref in range [0x0000000000000038-0x000000000000003f]RIP: 0010:flow_change (net/sched/cls_flow.c:508)Call Trace: tc_new_tfilter (net/sched/cls_api.c:2432) rtnetlink_rcv_msg (net/core/rtnetlink.c:6980) [...]=======================================================================
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:net/sched: sch_hfsc: fix divide-by-zero in rtsc_min()m2sm() converts a u32 slope to a u64 scaled value. For large inputs(e.g. m1=4000000000), the result can reach 2^32. rtsc_min() storesthe difference of two such u64 values in a u32 variable `dsm` anduses it as a divisor. When the difference is exactly 2^32 thetruncation yields zero, causing a divide-by-zero oops in theconcave-curve intersection path: Oops: divide error: 0000 RIP: 0010:rtsc_min (net/sched/sch_hfsc.c:601) Call Trace: init_ed (net/sched/sch_hfsc.c:629) hfsc_enqueue (net/sched/sch_hfsc.c:1569) [...]Widen `dsm` to u64 and replace do_div() with div64_u64() so the fulldifference is preserved.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:netfilter: x_tables: restrict xt_check_match/xt_check_target extensions for NFPROTO_ARPWeiming Shi says:xt_match and xt_target structs registered with NFPROTO_UNSPEC can beloaded by any protocol family through nft_compat. When such amatch/target sets .hooks to restrict which hooks it may run on, thebitmask uses NF_INET_* constants. This is only correct for familieswhose hook layout matches NF_INET_*: IPv4, IPv6, INET, and bridgeall share the same five hooks (PRE_ROUTING ... POST_ROUTING).ARP only has three hooks (IN=0, OUT=1, FORWARD=2) with differentsemantics. Because NF_ARP_OUT == 1 == NF_INET_LOCAL_IN, the .hooksvalidation silently passes for the wrong reasons, allowing matches torun on ARP chains where the hook assumptions (e.g. state->in beingset on input hooks) do not hold. This leads to NULL pointerdereferences; xt_devgroup is one concrete example: Oops: general protection fault, probably for non-canonical address 0xdffffc0000000044: 0000 [#1] SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x0000000000000220-0x0000000000000227] RIP: 0010:devgroup_mt+0xff/0x350 Call Trace: nft_match_eval (net/netfilter/nft_compat.c:407) nft_do_chain (net/netfilter/nf_tables_core.c:285) nft_do_chain_arp (net/netfilter/nft_chain_filter.c:61) nf_hook_slow (net/netfilter/core.c:623) arp_xmit (net/ipv4/arp.c:666) Kernel panic - not syncing: Fatal exception in interruptFix it by restricting arptables to NFPROTO_ARP extensions only.Note that arptables-legacy only supports:- arpt_CLASSIFY- arpt_mangle- arpt_MARKthat provide explicit NFPROTO_ARP match/target declarations.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:rds: ib: reject FRMR registration before IB connection is establishedrds_ib_get_mr() extracts the rds_ib_connection from conn->c_transport_dataand passes it to rds_ib_reg_frmr() for FRWR memory registration. On afresh outgoing connection, ic is allocated in rds_ib_conn_alloc() withi_cm_id = NULL because the connection worker has not yet calledrds_ib_conn_path_connect() to create the rdma_cm_id. When sendmsg() withRDS_CMSG_RDMA_MAP is called on such a connection, the sendmsg path parsesthe control message before any connection establishment, allowingrds_ib_post_reg_frmr() to dereference ic->i_cm_id->qp and crash thekernel.The existing guard in rds_ib_reg_frmr() only checks for !ic (added incommit 9e630bcb7701), which does not catch this case since ic is allocatedearly and is always non-NULL once the connection object exists. KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017] RIP: 0010:rds_ib_post_reg_frmr+0x50e/0x920 Call Trace: rds_ib_post_reg_frmr (net/rds/ib_frmr.c:167) rds_ib_map_frmr (net/rds/ib_frmr.c:252) rds_ib_reg_frmr (net/rds/ib_frmr.c:430) rds_ib_get_mr (net/rds/ib_rdma.c:615) __rds_rdma_map (net/rds/rdma.c:295) rds_cmsg_rdma_map (net/rds/rdma.c:860) rds_sendmsg (net/rds/send.c:1363) ____sys_sendmsg do_syscall_64Add a check in rds_ib_get_mr() that verifies ic, i_cm_id, and qp are allnon-NULL before proceeding with FRMR registration, mirroring the guardalready present in rds_ib_post_inv(). Return -ENODEV when the connectionis not ready, which the existing error handling in rds_cmsg_send() convertsto -EAGAIN for userspace retry and triggers rds_conn_connect_if_down() tostart the connection worker.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:netfilter: nfnetlink_log: fix uninitialized padding leak in NFULA_PAYLOAD__build_packet_message() manually constructs the NFULA_PAYLOAD netlinkattribute using skb_put() and skb_copy_bits(), bypassing the standardnla_reserve()/nla_put() helpers. While nla_total_size(data_len) bytesare allocated (including NLA alignment padding), only data_len bytesof actual packet data are copied. The trailing nla_padlen(data_len)bytes (1-3 when data_len is not 4-byte aligned) are never initialized,leaking stale heap contents to userspace via the NFLOG netlink socket.Replace the manual attribute construction with nla_reserve(), whichhandles the tailroom check, header setup, and padding zeroing via__nla_reserve(). The subsequent skb_copy_bits() fills in the payloaddata on top of the properly initialized attribute.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:net: skb: fix cross-cache free of KFENCE-allocated skb headSKB_SMALL_HEAD_CACHE_SIZE is intentionally set to a non-power-of-2value (e.g. 704 on x86_64) to avoid collisions with generic kmallocbucket sizes. This ensures that skb_kfree_head() can reliably useskb_end_offset to distinguish skb heads allocated fromskb_small_head_cache vs. generic kmalloc caches.However, when KFENCE is enabled, kfence_ksize() returns the exactrequested allocation size instead of the slab bucket size. If a caller(e.g. bpf_test_init) allocates skb head data via kzalloc() and therequested size happens to equal SKB_SMALL_HEAD_CACHE_SIZE, thenslab_build_skb() -> ksize() returns that exact value. After subtractingskb_shared_info overhead, skb_end_offset ends up matchingSKB_SMALL_HEAD_HEADROOM, causing skb_kfree_head() to incorrectly freethe object to skb_small_head_cache instead of back to the originalkmalloc cache, resulting in a slab cross-cache free: kmem_cache_free(skbuff_small_head): Wrong slab cache. Expected skbuff_small_head but got kmalloc-1kFix this by always calling kfree(head) in skb_kfree_head(). This keepsthe free path generic and avoids allocator-specific misclassificationfor KFENCE objects.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:ksmbd: fix use-after-free and NULL deref in smb_grant_oplock()smb_grant_oplock() has two issues in the oplock publication sequence:1) opinfo is linked into ci->m_op_list (via opinfo_add) before add_lease_global_list() is called. If add_lease_global_list() fails (kmalloc returns NULL), the error path frees the opinfo via __free_opinfo() while it is still linked in ci->m_op_list. Concurrent m_op_list readers (opinfo_get_list, or direct iteration in smb_break_all_levII_oplock) dereference the freed node.2) opinfo->o_fp is assigned after add_lease_global_list() publishes the opinfo on the global lease list. A concurrent find_same_lease_key() can walk the lease list and dereference opinfo->o_fp->f_ci while o_fp is still NULL.Fix by restructuring the publication sequence to eliminate post-publishfailure:- Set opinfo->o_fp before any list publication (fixes NULL deref).- Preallocate lease_table via alloc_lease_table() before opinfo_add() so add_lease_global_list() becomes infallible after publication.- Keep the original m_op_list publication order (opinfo_add before lease list) so concurrent opens via same_client_has_lease() and opinfo_get_list() still see the in-flight grant.- Use opinfo_put() instead of __free_opinfo() on err_out so that the RCU-deferred free path is used.This also requires splitting add_lease_global_list() to take apreallocated lease_table and changing its return type from int to void,since it can no longer fail.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:ext4: reject mount if bigalloc with s_first_data_block != 0bigalloc with s_first_data_block != 0 is not supported, reject mountingit.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:ext4: validate p_idx bounds in ext4_ext_correct_indexesext4_ext_correct_indexes() walks up the extent tree correctingindex entries when the first extent in a leaf is modified. Beforeaccessing path[k].p_idx->ei_block, there is no validation thatp_idx falls within the valid range of index entries for thatlevel.If the on-disk extent header contains a corrupted or craftedeh_entries value, p_idx can point past the end of the allocatedbuffer, causing a slab-out-of-bounds read.Fix this by validating path[k].p_idx against EXT_LAST_INDEX() atboth access sites: before the while loop and inside it. Return-EFSCORRUPTED if the index pointer is out of range, consistentwith how other bounds violations are handled in the ext4 extenttree code.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:ext4: publish jinode after initializationext4_inode_attach_jinode() publishes ei->jinode to concurrent users.It used to set ei->jinode before jbd2_journal_init_jbd_inode(),allowing a reader to observe a non-NULL jinode with i_vfs_inodestill unset.The fast commit flush path can then pass this jinode tojbd2_wait_inode_data(), which dereferences i_vfs_inode->i_mapping andmay crash.Below is the crash I observe:```BUG: unable to handle page fault for address: 000000010beb47f4PGD 110e51067 P4D 110e51067 PUD 0Oops: Oops: 0000 [#1] SMP NOPTICPU: 1 UID: 0 PID: 4850 Comm: fc_fsync_bench_ Not tainted 6.18.0-00764-g795a690c06a5 #1 PREEMPT(voluntary)Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Arch Linux 1.17.0-2-2 04/01/2014RIP: 0010:xas_find_marked+0x3d/0x2e0Code: e0 03 48 83 f8 02 0f 84 f0 01 00 00 48 8b 47 08 48 89 c3 48 39 c6 0f 82 fd 01 00 00 48 85 c9 74 3d 48 83 f9 03 77 63 4c 8b 0f <49> 8b 71 08 48 c7 47 18 00 00 00 00 48 89 f1 83 e1 03 48 83 f9 02RSP: 0018:ffffbbee806e7bf0 EFLAGS: 00010246RAX: 000000000010beb4 RBX: 000000000010beb4 RCX: 0000000000000003RDX: 0000000000000001 RSI: 0000002000300000 RDI: ffffbbee806e7c10RBP: 0000000000000001 R08: 0000002000300000 R09: 000000010beb47ecR10: ffff9ea494590090 R11: 0000000000000000 R12: 0000002000300000R13: ffffbbee806e7c90 R14: ffff9ea494513788 R15: ffffbbee806e7c88FS: 00007fc2f9e3e6c0(0000) GS:ffff9ea6b1444000(0000) knlGS:0000000000000000CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033CR2: 000000010beb47f4 CR3: 0000000119ac5000 CR4: 0000000000750ef0PKRU: 55555554Call Trace:filemap_get_folios_tag+0x87/0x2a0__filemap_fdatawait_range+0x5f/0xd0? srso_alias_return_thunk+0x5/0xfbef5? __schedule+0x3e7/0x10c0? srso_alias_return_thunk+0x5/0xfbef5? srso_alias_return_thunk+0x5/0xfbef5? srso_alias_return_thunk+0x5/0xfbef5? preempt_count_sub+0x5f/0x80? srso_alias_return_thunk+0x5/0xfbef5? cap_safe_nice+0x37/0x70? srso_alias_return_thunk+0x5/0xfbef5? preempt_count_sub+0x5f/0x80? srso_alias_return_thunk+0x5/0xfbef5filemap_fdatawait_range_keep_errors+0x12/0x40ext4_fc_commit+0x697/0x8b0? ext4_file_write_iter+0x64b/0x950? srso_alias_return_thunk+0x5/0xfbef5? preempt_count_sub+0x5f/0x80? srso_alias_return_thunk+0x5/0xfbef5? vfs_write+0x356/0x480? srso_alias_return_thunk+0x5/0xfbef5? preempt_count_sub+0x5f/0x80ext4_sync_file+0xf7/0x370do_fsync+0x3b/0x80? syscall_trace_enter+0x108/0x1d0__x64_sys_fdatasync+0x16/0x20do_syscall_64+0x62/0x2c0entry_SYSCALL_64_after_hwframe+0x76/0x7e...```Fix this by initializing the jbd2_inode first.Use smp_wmb() and WRITE_ONCE() to publish ei->jinode afterinitialization. Readers use READ_ONCE() to fetch the pointer.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:ext4: replace BUG_ON with proper error handling in ext4_read_inline_folioReplace BUG_ON() with proper error handling when inline data sizeexceeds PAGE_SIZE. This prevents kernel panic and allows the system tocontinue running while properly reporting the filesystem corruption.The error is logged via ext4_error_inode(), the buffer head is releasedto prevent memory leak, and -EFSCORRUPTED is returned to indicatefilesystem corruption.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:ext4: convert inline data to extents when truncate exceeds inline sizeAdd a check in ext4_setattr() to convert files from inline data storageto extent-based storage when truncate() grows the file size beyond theinline capacity. This prevents the filesystem from entering aninconsistent state where the inline data flag is set but the file sizeexceeds what can be stored inline.Without this fix, the following sequence causes a kernel BUG_ON():1. Mount filesystem with inode that has inline flag set and small size2. truncate(file, 50MB) - grows size but inline flag remains set3. sendfile() attempts to write data4. ext4_write_inline_data() hits BUG_ON(write_size > inline_capacity)The crash occurs because ext4_write_inline_data() expects inline storageto accommodate the write, but the actual inline capacity (~60 bytes fori_block + ~96 bytes for xattrs) is far smaller than the file size andwrite request.The fix checks if the new size from setattr exceeds the inode's actualinline capacity (EXT4_I(inode)->i_inline_size) and converts the file toextent-based storage before proceeding with the size change.This addresses the root cause by ensuring the inline data flag and filesize remain consistent during truncate operations.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:xfs: avoid dereferencing log items after push callbacksAfter xfsaild_push_item() calls iop_push(), the log item may have beenfreed if the AIL lock was dropped during the push. Background inodereclaim or the dquot shrinker can free the log item while the AIL lockis not held, and the tracepoints in the switch statement dereferencethe log item after iop_push() returns.Fix this by capturing the log item type, flags, and LSN before callingxfsaild_push_item(), and introducing a new xfs_ail_push_class traceevent class that takes these pre-captured values and the ailp pointerinstead of the log item pointer.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:xfs: save ailp before dropping the AIL lock in push callbacksIn xfs_inode_item_push() and xfs_qm_dquot_logitem_push(), the AIL lockis dropped to perform buffer IO. Once the cluster buffer no longerprotects the log item from reclaim, the log item may be freed bybackground reclaim or the dquot shrinker. The subsequent spin_lock()call dereferences lip->li_ailp, which is a use-after-free.Fix this by saving the ailp pointer in a local variable while the AILlock is held and the log item is guaranteed to be valid.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:xfs: stop reclaim before pushing AIL during unmountThe unmount sequence in xfs_unmount_flush_inodes() pushed the AIL whilebackground reclaim and inodegc are still running. This is brokenindependently of any use-after-free issues - background reclaim andinodegc should not be running while the AIL is being pushed duringunmount, as inodegc can dirty and insert inodes into the AIL during theflush, and background reclaim can race to abort and free dirty inodes.Reorder xfs_unmount_flush_inodes() to stop inodegc and cancel backgroundreclaim before pushing the AIL. Stop inodegc before cancellingm_reclaim_work because the inodegc worker can re-queue m_reclaim_workvia xfs_inodegc_set_reclaimable.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:mm/damon/sysfs: check contexts->nr before accessing contexts_arr[0]Multiple sysfs command paths dereference contexts_arr[0] without firstverifying that kdamond->contexts->nr == 1. A user can set nr_contexts to0 via sysfs while DAMON is running, causing NULL pointer dereferences.In more detail, the issue can be triggered by privileged users likebelow.First, start DAMON and make contexts directory empty(kdamond->contexts->nr == 0). # damo start # cd /sys/kernel/mm/damon/admin/kdamonds/0 # echo 0 > contexts/nr_contextsThen, each of below commands will cause the NULL pointer dereference. # echo update_schemes_stats > state # echo update_schemes_tried_regions > state # echo update_schemes_tried_bytes > state # echo update_schemes_effective_quotas > state # echo update_tuned_intervals > stateGuard all commands (except OFF) at the entry point ofdamon_sysfs_handle_cmd().
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:ksmbd: do not expire session on binding failureWhen a multichannel session binding request fails (e.g. wrong password),the error path unconditionally sets sess->state = SMB2_SESSION_EXPIRED.However, during binding, sess points to the target session looked up viaksmbd_session_lookup_slowpath() -- which belongs to another connection'suser. This allows a remote attacker to invalidate any active session bysimply sending a binding request with a wrong password (DoS).Fix this by skipping session expiration when the failed request wasa binding attempt, since the session does not belong to the currentconnection. The reference taken by ksmbd_session_lookup_slowpath() isstill correctly released via ksmbd_user_session_put().
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:ksmbd: fix memory leaks and NULL deref in smb2_lock()smb2_lock() has three error handling issues after list_del() detachessmb_lock from lock_list at no_check_cl:1) If vfs_lock_file() returns an unexpected error in the non-UNLOCK path, goto out leaks smb_lock and its flock because the out: handler only iterates lock_list and rollback_list, neither of which contains the detached smb_lock.2) If vfs_lock_file() returns -ENOENT in the UNLOCK path, goto out leaks smb_lock and flock for the same reason. The error code returned to the dispatcher is also stale.3) In the rollback path, smb_flock_init() can return NULL on allocation failure. The result is dereferenced unconditionally, causing a kernel NULL pointer dereference. Add a NULL check to prevent the crash and clean up the bookkeeping; the VFS lock itself cannot be rolled back without the allocation and will be released at file or connection teardown.Fix cases 1 and 2 by hoisting the locks_free_lock()/kfree() to beforethe if(!rc) check in the UNLOCK branch so all exit paths share onefree site, and by freeing smb_lock and flock before goto out in thenon-UNLOCK branch. Propagate the correct error code in both cases.Fix case 3 by wrapping the VFS unlock in an if(rlock) guard and addinga NULL check for locks_free_lock(rlock) in the shared cleanup.Found via call-graph analysis using sqry.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:drm/xe: always keep track of remap prev/nextDuring 3D workload, user is reporting hitting:[ 413.361679] WARNING: drivers/gpu/drm/xe/xe_vm.c:1217 at vm_bind_ioctl_ops_unwind+0x1e2/0x2e0 [xe], CPU#7: vkd3d_queue/9925[ 413.361944] CPU: 7 UID: 1000 PID: 9925 Comm: vkd3d_queue Kdump: loaded Not tainted 7.0.0-070000rc3-generic #202603090038 PREEMPT(lazy)[ 413.361949] RIP: 0010:vm_bind_ioctl_ops_unwind+0x1e2/0x2e0 [xe][ 413.362074] RSP: 0018:ffffd4c25c3df930 EFLAGS: 00010282[ 413.362077] RAX: 0000000000000000 RBX: ffff8f3ee817ed10 RCX: 0000000000000000[ 413.362078] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000[ 413.362079] RBP: ffffd4c25c3df980 R08: 0000000000000000 R09: 0000000000000000[ 413.362081] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8f41fbf99380[ 413.362082] R13: ffff8f3ee817e968 R14: 00000000ffffffef R15: ffff8f43d00bd380[ 413.362083] FS: 00000001040ff6c0(0000) GS:ffff8f4696d89000(0000) knlGS:00000000330b0000[ 413.362085] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033[ 413.362086] CR2: 00007ddfc4747000 CR3: 00000002e6262005 CR4: 0000000000f72ef0[ 413.362088] PKRU: 55555554[ 413.362089] Call Trace:[ 413.362092] [ 413.362096] xe_vm_bind_ioctl+0xa9a/0xc60 [xe]Which seems to hint that the vma we are re-inserting for the ops unwindis either invalid or overlapping with something already inserted in thevm. It shouldn't be invalid since this is a re-insertion, so must haveworked before. Leaving the likely culprit as something already placedwhere we want to insert the vma.Following from that, for the case where we do something like a rebind inthe middle of a vma, and one or both mapped ends are already compatible,we skip doing the rebind of those vma and set next/prev to NULL. As wellas then adjust the original unmap va range, to avoid unmapping the ends.However, if we trigger the unwind path, we end up with three va, withthe two ends never being removed and the original va range in the middlestill being the shrunken size.If this occurs, one failure mode is when another unwind op needs tointeract with that range, which can happen with a vector of binds. Forexample, if we need to re-insert something in place of the original va.In this case the va is still the shrunken version, so when removing itand then doing a re-insert it can overlap with the ends, which werenever removed, triggering a warning like above, plus leaving the vm in abad state.With that, we need two things here: 1) Stop nuking the prev/next tracking for the skip cases. Instead relying on checking for skip prev/next, where needed. That way on the unwind path, we now correctly remove both ends. 2) Undo the unmap va shrinkage, on the unwind path. With the two ends now removed the unmap va should expand back to the original size again, before re-insertion.v2: - Update the explanation in the commit message, based on an actual IGT of triggering this issue, rather than conjecture. - Also undo the unmap shrinkage, for the skip case. With the two ends now removed, the original unmap va range should expand back to the original range.v3: - Track the old start/range separately. vma_size/start() uses the va info directly.(cherry picked from commit aec6969f75afbf4e01fd5fb5850ed3e9c27043ac)
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:hwmon: (pmbus/core) Protect regulator operations with mutexThe regulator operations pmbus_regulator_get_voltage(),pmbus_regulator_set_voltage(), and pmbus_regulator_list_voltage()access PMBus registers and shared data but were not protected bythe update_lock mutex. This could lead to race conditions.However, adding mutex protection directly to these functions causesa deadlock because pmbus_regulator_notify() (which callsregulator_notifier_call_chain()) is often called with the mutexalready held (e.g., from pmbus_fault_handler()). If a regulatorcallback then calls one of the now-protected voltage functions,it will attempt to acquire the same mutex.Rework pmbus_regulator_notify() to utilize a worker function tosend notifications outside of the mutex protection. Events arestored as atomics in a per-page bitmask and processed by the worker.Initialize the worker and its associated data during regulatorregistration, and ensure it is cancelled on device removal usingdevm_add_action_or_reset().While at it, remove the unnecessary include of linux/of.h.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:spi: meson-spicc: Fix double-put in remove pathmeson_spicc_probe() registers the controller withdevm_spi_register_controller(), so teardown already drops thecontroller reference via devm cleanup.Calling spi_controller_put() again in meson_spicc_remove()causes a double-put.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:RDMA/irdma: Initialize free_qp completion before using itIn irdma_create_qp, if ib_copy_to_udata fails, it will callirdma_destroy_qp to clean up which will attempt to wait onthe free_qp completion, which is not initialized yet. Fix thisby initializing the completion before the ib_copy_to_udata call.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:netfilter: ctnetlink: use netlink policy range checksReplace manual range and mask validations with netlink policyannotations in ctnetlink code paths, so that the netlink core rejectsinvalid values early and can generate extack errors.- CTA_PROTOINFO_TCP_STATE: reject values > TCP_CONNTRACK_SYN_SENT2 at policy level, removing the manual >= TCP_CONNTRACK_MAX check.- CTA_PROTOINFO_TCP_WSCALE_ORIGINAL/REPLY: reject values > TCP_MAX_WSCALE (14). The normal TCP option parsing path already clamps to this value, but the ctnetlink path accepted 0-255, causing undefined behavior when used as a u32 shift count.- CTA_FILTER_ORIG_FLAGS/REPLY_FLAGS: use NLA_POLICY_MASK with CTA_FILTER_F_ALL, removing the manual mask checks.- CTA_EXPECT_FLAGS: use NLA_POLICY_MASK with NF_CT_EXPECT_MASK, adding a new mask define grouping all valid expect flags.Extracted from a broader nf-next patch by Florian Westphal, scoped toctnetlink for the fixes tree.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:btrfs: set BTRFS_ROOT_ORPHAN_CLEANUP during subvol createWe have recently observed a number of subvolumes with broken dentries.ls-ing the parent dir looks like:drwxrwxrwt 1 root root 16 Jan 23 16:49 .drwxr-xr-x 1 root root 24 Jan 23 16:48 ..d????????? ? ? ? ? ? broken_subvoland similarly stat-ing the file fails.In this state, deleting the subvol fails with ENOENT, but attempting tocreate a new file or subvol over it errors out with EEXIST and evenaborts the fs. Which leaves us a bit stuck.dmesg contains a single notable error message reading:"could not do orphan cleanup -2"2 is ENOENT and the error comes from the failure handling path ofbtrfs_orphan_cleanup(), with the stack leading back up tobtrfs_lookup().btrfs_lookupbtrfs_lookup_dentrybtrfs_orphan_cleanup // prints that message and returns -ENOENTAfter some detailed inspection of the internal state, it became clearthat:- there are no orphan items for the subvol- the subvol is otherwise healthy looking, it is not half-deleted or anything, there is no drop progress, etc.- the subvol was created a while ago and does the meaningful first btrfs_orphan_cleanup() call that sets BTRFS_ROOT_ORPHAN_CLEANUP much later.- after btrfs_orphan_cleanup() fails, btrfs_lookup_dentry() returns -ENOENT, which results in a negative dentry for the subvolume via d_splice_alias(NULL, dentry), leading to the observed behavior. The bug can be mitigated by dropping the dentry cache, at which point we can successfully delete the subvolume if we want.i.e.,btrfs_lookup() btrfs_lookup_dentry() if (!sb_rdonly(inode->vfs_inode)->vfs_inode) btrfs_orphan_cleanup(sub_root) test_and_set_bit(BTRFS_ROOT_ORPHAN_CLEANUP) btrfs_search_slot() // finds orphan item for inode N ... prints "could not do orphan cleanup -2" if (inode == ERR_PTR(-ENOENT)) inode = NULL; return d_splice_alias(NULL, dentry) // NEGATIVE DENTRY for valid subvolumebtrfs_orphan_cleanup() does test_and_set_bit(BTRFS_ROOT_ORPHAN_CLEANUP)on the root when it runs, so it cannot run more than once on a givenroot, so something else must run concurrently. However, the obviousroutes to deleting an orphan when nlinks goes to 0 should not be able torun without first doing a lookup into the subvolume, which should runbtrfs_orphan_cleanup() and set the bit.The final important observation is that create_subvol() callsd_instantiate_new() but does not set BTRFS_ROOT_ORPHAN_CLEANUP, so ifthe dentry cache gets dropped, the next lookup into the subvolume willmake a real call into btrfs_orphan_cleanup() for the first time. Thisopens up the possibility of concurrently deleting the inode/orphan itemsbut most typical evict() paths will be holding a reference on the parentdentry (child dentry holds parent->d_lockref.count via dget ind_alloc(), released in __dentry_kill()) and prevent the parent frombeing removed from the dentry cache.The one exception is delayed iputs. Ordered extent creation callsigrab() on the inode. If the file is unlinked and closed while thoserefs are held, iput() in __dentry_kill() decrements i_count but doesnot trigger eviction (i_count > 0). The child dentry is freed and thesubvol dentry's d_lockref.count drops to 0, making it evictable whilethe inode is still alive.Since there are two races (the race between writeback and unlink andthe race between lookup and delayed iputs), and there are too many movingparts, the following three diagrams show the complete picture.(Only the second and third are races)Phase 1:Create Subvol in dentry cache without BTRFS_ROOT_ORPHAN_CLEANUP setbtrfs_mksubvol() lookup_one_len() __lookup_slow() d_alloc_parallel() __d_alloc() // d_lockref.count = 1 create_subvol(dentry) // doesn't touch the bit.. d_instantiate_new(dentry, inode) // dentry in cache with d_lockref.c---truncated---
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:ipv4: nexthop: allocate skb dynamically in rtm_get_nexthop()When querying a nexthop object via RTM_GETNEXTHOP, the kernel currentlyallocates a fixed-size skb using NLMSG_GOODSIZE. While sufficient forsingle nexthops and small Equal-Cost Multi-Path groups, this fixedallocation fails for large nexthop groups like 512 nexthops.This results in the following warning splat: WARNING: net/ipv4/nexthop.c:3395 at rtm_get_nexthop+0x176/0x1c0, CPU#20: rep/4608 [...] RIP: 0010:rtm_get_nexthop (net/ipv4/nexthop.c:3395) [...] Call Trace: rtnetlink_rcv_msg (net/core/rtnetlink.c:6989) netlink_rcv_skb (net/netlink/af_netlink.c:2550) netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344) netlink_sendmsg (net/netlink/af_netlink.c:1894) ____sys_sendmsg (net/socket.c:721 net/socket.c:736 net/socket.c:2585) ___sys_sendmsg (net/socket.c:2641) __sys_sendmsg (net/socket.c:2671) do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) Fix this by allocating the size dynamically using nh_nlmsg_size() andusing nlmsg_new(), this is consistent with nexthop_notify() behavior. Inaddition, adjust nh_nlmsg_size_grp() so it calculates the size neededbased on flags passed. While at it, also add the size of NHA_FDB fornexthop group size calculation as it was missing too.This cannot be reproduced via iproute2 as the group size is currentlylimited and the command fails as follows:addattr_l ERROR: message exceeded bound of 1048
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:smb: server: let send_done handle a completion without IB_SEND_SIGNALEDWith smbdirect_send_batch processing we likely have requests withoutIB_SEND_SIGNALED, which will be destroyed in the final requestthat has IB_SEND_SIGNALED set.If the connection is broken all requests are signaledeven without explicit IB_SEND_SIGNALED.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:smb: server: make use of smbdirect_socket.send_io.bcreditsIt turns out that our code will corrupt the stream ofreassabled data transfer messages when we trigger animmendiate (empty) send.In order to fix this we'll have a single 'batch' credit perconnection. And code getting that credit is free to useas much messages until remaining_length reaches 0, thenthe batch credit it given back and the next logical send canhappen.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:net: bonding: fix NULL deref in bond_debug_rlb_hash_showrlb_clear_slave intentionally keeps RLB hash-table entries onthe rx_hashtbl_used_head list with slave set to NULL when noreplacement slave is available. However, bond_debug_rlb_hash_showvisites client_info->slave without checking if it's NULL.Other used-list iterators in bond_alb.c already handle this NULL-slavestate safely:- rlb_update_client returns early on !client_info->slave- rlb_req_update_slave_clients, rlb_clear_slave, and rlb_rebalancecompare slave values before visiting- lb_req_update_subnet_clients continues if slave is NULLThe following NULL deref crash can be trigger inbond_debug_rlb_hash_show:[ 1.289791] BUG: kernel NULL pointer dereference, address: 0000000000000000[ 1.292058] RIP: 0010:bond_debug_rlb_hash_show (drivers/net/bonding/bond_debugfs.c:41)[ 1.293101] RSP: 0018:ffffc900004a7d00 EFLAGS: 00010286[ 1.293333] RAX: 0000000000000000 RBX: ffff888102b48200 RCX: ffff888102b48204[ 1.293631] RDX: ffff888102b48200 RSI: ffffffff839daad5 RDI: ffff888102815078[ 1.293924] RBP: ffff888102815078 R08: ffff888102b4820e R09: 0000000000000000[ 1.294267] R10: 0000000000000000 R11: 0000000000000000 R12: ffff888100f929c0[ 1.294564] R13: ffff888100f92a00 R14: 0000000000000001 R15: ffffc900004a7ed8[ 1.294864] FS: 0000000001395380(0000) GS:ffff888196e75000(0000) knlGS:0000000000000000[ 1.295239] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033[ 1.295480] CR2: 0000000000000000 CR3: 0000000102adc004 CR4: 0000000000772ef0[ 1.295897] Call Trace:[ 1.296134] seq_read_iter (fs/seq_file.c:231)[ 1.296341] seq_read (fs/seq_file.c:164)[ 1.296493] full_proxy_read (fs/debugfs/file.c:378 (discriminator 1))[ 1.296658] vfs_read (fs/read_write.c:572)[ 1.296981] ksys_read (fs/read_write.c:717)[ 1.297132] do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))[ 1.297325] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)Add a NULL check and print "(none)" for entries with no assigned slave.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:drm/xe: Fix missing runtime PM reference in ccs_mode_storeccs_mode_store() calls xe_gt_reset() which internally invokesxe_pm_runtime_get_noresume(). That function requires the callerto already hold an outer runtime PM reference and warns if noneis held: [46.891177] xe 0000:03:00.0: [drm] Missing outer runtime PM protection [46.891178] WARNING: drivers/gpu/drm/xe/xe_pm.c:885 at xe_pm_runtime_get_noresume+0x8b/0xc0Fix this by protecting xe_gt_reset() with the scope-basedguard(xe_pm_runtime)(xe), which is the preferred form whenthe reference lifetime matches a single scope.v2:- Use scope-based guard(xe_pm_runtime)(xe) (Shuicheng)- Update commit message accordingly(cherry picked from commit 7937ea733f79b3f25e802a0c8360bf7423856f36)
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:nvmet: move async event work off nvmet-wqFor target nvmet_ctrl_free() flushes ctrl->async_event_work.If nvmet_ctrl_free() runs on nvmet-wq, the flush re-enters workqueuecompletion for the same worker:-A. Async event work queued on nvmet-wq (prior to disconnect): nvmet_execute_async_event() queue_work(nvmet_wq, &ctrl->async_event_work) nvmet_add_async_event() queue_work(nvmet_wq, &ctrl->async_event_work)B. Full pre-work chain (RDMA CM path): nvmet_rdma_cm_handler() nvmet_rdma_queue_disconnect() __nvmet_rdma_queue_disconnect() queue_work(nvmet_wq, &queue->release_work) process_one_work() lock((wq_completion)nvmet-wq) <--------- 1st nvmet_rdma_release_queue_work()C. Recursive path (same worker): nvmet_rdma_release_queue_work() nvmet_rdma_free_queue() nvmet_sq_destroy() nvmet_ctrl_put() nvmet_ctrl_free() flush_work(&ctrl->async_event_work) __flush_work() touch_wq_lockdep_map() lock((wq_completion)nvmet-wq) <--------- 2ndLockdep splat: ============================================ WARNING: possible recursive locking detected 6.19.0-rc3nvme+ #14 Tainted: G N -------------------------------------------- kworker/u192:42/44933 is trying to acquire lock: ffff888118a00948 ((wq_completion)nvmet-wq){+.+.}-{0:0}, at: touch_wq_lockdep_map+0x26/0x90 but task is already holding lock: ffff888118a00948 ((wq_completion)nvmet-wq){+.+.}-{0:0}, at: process_one_work+0x53e/0x660 3 locks held by kworker/u192:42/44933: #0: ffff888118a00948 ((wq_completion)nvmet-wq){+.+.}-{0:0}, at: process_one_work+0x53e/0x660 #1: ffffc9000e6cbe28 ((work_completion)(&queue->release_work)){+.+.}-{0:0}, at: process_one_work+0x1c5/0x660 #2: ffffffff82d4db60 (rcu_read_lock){....}-{1:3}, at: __flush_work+0x62/0x530 Workqueue: nvmet-wq nvmet_rdma_release_queue_work [nvmet_rdma] Call Trace: __flush_work+0x268/0x530 nvmet_ctrl_free+0x140/0x310 [nvmet] nvmet_cq_put+0x74/0x90 [nvmet] nvmet_rdma_free_queue+0x23/0xe0 [nvmet_rdma] nvmet_rdma_release_queue_work+0x19/0x50 [nvmet_rdma] process_one_work+0x206/0x660 worker_thread+0x184/0x320 kthread+0x10c/0x240 ret_from_fork+0x319/0x390Move async event work to a dedicated nvmet-aen-wq to avoid reentrantflush on nvmet-wq.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:spi: spi-dw-dma: fix print error log when wait finish transactionIf an error occurs, the device may not have a current message. In thiscase, the system will crash.In this case, it's better to use dev from the struct ctlr (struct spi_controller*).
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:drm/mediatek: dsi: Store driver data before invoking mipi_dsi_host_registerThe call to mipi_dsi_host_register triggers a callback to mtk_dsi_bind,which uses dev_get_drvdata to retrieve the mtk_dsi struct, so thisstructure needs to be stored inside the driver data before invoking it.As drvdata is currently uninitialized it leads to a crash whenregistering the DSI DRM encoder right after acquiringthe mode_config.idr_mutex, blocking all subsequent DRM operations.Fixes the following crash during mediatek-drm probe (tested on XiaomiSmart Clock x04g):Unable to handle kernel NULL pointer dereference at virtual address 0000000000000040[...]Modules linked in: mediatek_drm(+) drm_display_helper cec drm_client_lib drm_dma_helper drm_kms_helper panel_simple[...]Call trace: drm_mode_object_add+0x58/0x98 (P) __drm_encoder_init+0x48/0x140 drm_encoder_init+0x6c/0xa0 drm_simple_encoder_init+0x20/0x34 [drm_kms_helper] mtk_dsi_bind+0x34/0x13c [mediatek_drm] component_bind_all+0x120/0x280 mtk_drm_bind+0x284/0x67c [mediatek_drm] try_to_bring_up_aggregate_device+0x23c/0x320 __component_add+0xa4/0x198 component_add+0x14/0x20 mtk_dsi_host_attach+0x78/0x100 [mediatek_drm] mipi_dsi_attach+0x2c/0x50 panel_simple_dsi_probe+0x4c/0x9c [panel_simple] mipi_dsi_drv_probe+0x1c/0x28 really_probe+0xc0/0x3dc __driver_probe_device+0x80/0x160 driver_probe_device+0x40/0x120 __device_attach_driver+0xbc/0x17c bus_for_each_drv+0x88/0xf0 __device_attach+0x9c/0x1cc device_initial_probe+0x54/0x60 bus_probe_device+0x34/0xa0 device_add+0x5b0/0x800 mipi_dsi_device_register_full+0xdc/0x16c mipi_dsi_host_register+0xc4/0x17c mtk_dsi_probe+0x10c/0x260 [mediatek_drm] platform_probe+0x5c/0xa4 really_probe+0xc0/0x3dc __driver_probe_device+0x80/0x160 driver_probe_device+0x40/0x120 __driver_attach+0xc8/0x1f8 bus_for_each_dev+0x7c/0xe0 driver_attach+0x24/0x30 bus_add_driver+0x11c/0x240 driver_register+0x68/0x130 __platform_register_drivers+0x64/0x160 mtk_drm_init+0x24/0x1000 [mediatek_drm] do_one_initcall+0x60/0x1d0 do_init_module+0x54/0x240 load_module+0x1838/0x1dc0 init_module_from_file+0xd8/0xf0 __arm64_sys_finit_module+0x1b4/0x428 invoke_syscall.constprop.0+0x48/0xc8 do_el0_svc+0x3c/0xb8 el0_svc+0x34/0xe8 el0t_64_sync_handler+0xa0/0xe4 el0t_64_sync+0x198/0x19cCode: 52800022 941004ab 2a0003f3 37f80040 (29005a80)
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:RDMA/irdma: Fix deadlock during netdev reset with active connectionsResolve deadlock that occurs when user executes netdev reset while RDMAapplications (e.g., rping) are active. The netdev reset causes icedriver to remove irdma auxiliary driver, triggering device_delete andsubsequent client removal. During client removal, uverbs_client waitsfor QP reference count to reach zero while cma_client holds the finalreference, creating circular dependency and indefinite wait in iWARPmode. Skip QP reference count wait during device reset to preventdeadlock.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:s390/mm: Add missing secure storage access fixups for donated memoryThere are special cases where secure storage access exceptions happenin a kernel context for pages that don't have the PG_arch_1 bitset. That bit is set for non-exported guest secure storage (memory)but is absent on storage donated to the Ultravisor since the kernelisn't allowed to export donated pages.Prior to this patch we would try to export the page by callingarch_make_folio_accessible() which would instantly return since thearch bit is absent signifying that the page was already exported andno further action is necessary. This leads to secure storage accessexception loops which can never be resolved.With this patch we unconditionally try to export and if that fails wefixup.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:wireguard: device: use exit_rtnl callback instead of manual rtnl_lock in pre_exitwg_netns_pre_exit() manually acquires rtnl_lock() inside thepernet .pre_exit callback. This causes a hung task when anotherthread holds rtnl_mutex - the cleanup_net workqueue (or thesetup_net failure rollback path) blocks indefinitely inwg_netns_pre_exit() waiting to acquire the lock.Convert to .exit_rtnl, introduced in commit 7a60d91c690b ("net:Add ->exit_rtnl() hook to struct pernet_operations."), where theframework already holds RTNL and batches all callbacks under asingle rtnl_lock()/rtnl_unlock() pair, eliminating the contentionwindow.The rcu_assign_pointer(wg->creating_net, NULL) is safe to movefrom .pre_exit to .exit_rtnl (which runs after synchronize_rcu())because all RCU readers of creating_net either use maybe_get_net()- which returns NULL for a dying namespace with zero refcount - oraccess net->user_ns which remains valid throughout the entireops_undo_list sequence.[ Jason: added __net_exit and __read_mostly annotations that were missing. ]
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:KVM: SEV: Drop WARN on large size for KVM_MEMORY_ENCRYPT_REG_REGIONDrop the WARN in sev_pin_memory() on npages overflowing an int, as theWARN is comically trivially to trigger from userspace, e.g. by doing: struct kvm_enc_region range = { .addr = 0, .size = -1ul, }; __vm_ioctl(vm, KVM_MEMORY_ENCRYPT_REG_REGION, &range);Note, the checks in sev_mem_enc_register_region() that presumably exist toverify the incoming address+size are completely worthless, as both "addr"and "size" are u64s and SEV is 64-bit only, i.e. they _can't_ be greaterthan ULONG_MAX. That wart will be cleaned up in the near future. if (range->addr > ULONG_MAX || range->size > ULONG_MAX) return -EINVAL;Opportunistically add a comment to explain why the code calculates thenumber of pages the "hard" way, e.g. instead of just shifting @ulen.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:KVM: SEV: Protect *all* of sev_mem_enc_register_region() with kvm->lockTake and hold kvm->lock for before checking sev_guest() insev_mem_enc_register_region(), as sev_guest() isn't stable unless kvm->lockis held (or KVM can guarantee KVM_SEV_INIT{2} has completed and can'trollack state). If KVM_SEV_INIT{2} fails, KVM can end up trying to add toa not-yet-initialized sev->regions_list, e.g. triggering a #GP Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 110 UID: 0 PID: 72717 Comm: syz.15.11462 Tainted: G U W O 6.16.0-smp-DEV #1 NONE Tainted: [U]=USER, [W]=WARN, [O]=OOT_MODULE Hardware name: Google, Inc. Arcadia_IT_80/Arcadia_IT_80, BIOS 12.52.0-0 10/28/2024 RIP: 0010:sev_mem_enc_register_region+0x3f0/0x4f0 ../include/linux/list.h:83 Code: <41> 80 3c 04 00 74 08 4c 89 ff e8 f1 c7 a2 00 49 39 ed 0f 84 c6 00 RSP: 0018:ffff88838647fbb8 EFLAGS: 00010256 RAX: dffffc0000000000 RBX: 1ffff92015cf1e0b RCX: dffffc0000000000 RDX: 0000000000000000 RSI: 0000000000001000 RDI: ffff888367870000 RBP: ffffc900ae78f050 R08: ffffea000d9e0007 R09: 1ffffd4001b3c000 R10: dffffc0000000000 R11: fffff94001b3c001 R12: 0000000000000000 R13: ffff8982ab0bde00 R14: ffffc900ae78f058 R15: 0000000000000000 FS: 00007f34e9dc66c0(0000) GS:ffff89ee64d33000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe180adef98 CR3: 000000047210e000 CR4: 0000000000350ef0 Call Trace: kvm_arch_vm_ioctl+0xa72/0x1240 ../arch/x86/kvm/x86.c:7371 kvm_vm_ioctl+0x649/0x990 ../virt/kvm/kvm_main.c:5363 __se_sys_ioctl+0x101/0x170 ../fs/ioctl.c:51 do_syscall_x64 ../arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x6f/0x1f0 ../arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x76/0x7e RIP: 0033:0x7f34e9f7e9a9 Code: <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f34e9dc6038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f34ea1a6080 RCX: 00007f34e9f7e9a9 RDX: 0000200000000280 RSI: 000000008010aebb RDI: 0000000000000007 RBP: 00007f34ea000d69 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f34ea1a6080 R15: 00007ffce77197a8 with a syzlang reproducer that looks like: syz_kvm_add_vcpu$x86(0x0, &(0x7f0000000040)={0x0, &(0x7f0000000180)=ANY=[], 0x70}) (async) syz_kvm_add_vcpu$x86(0x0, &(0x7f0000000080)={0x0, &(0x7f0000000180)=ANY=[@ANYBLOB="..."], 0x4f}) (async) r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0) r2 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0) r3 = ioctl$KVM_CREATE_VM(r2, 0xae01, 0x0) ioctl$KVM_SET_CLOCK(r3, 0xc008aeba, &(0x7f0000000040)={0x1, 0x8, 0x0, 0x5625e9b0}) (async) ioctl$KVM_SET_PIT2(r3, 0x8010aebb, &(0x7f0000000280)={[...], 0x5}) (async) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, 0x0) (async) r4 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) (async) ioctl$KVM_SET_USER_MEMORY_REGION(r4, 0x4020ae46, &(0x7f0000000400)={0x0, 0x0, 0x0, 0x2000, &(0x7f0000001000/0x2000)=nil}) (async) r5 = ioctl$KVM_CREATE_VCPU(r4, 0xae41, 0x2) close(r0) (async) openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x8000, 0x0) (async) ioctl$KVM_SET_GUEST_DEBUG(r5, 0x4048ae9b, &(0x7f0000000300)={0x4376ea830d46549b, 0x0, [0x46, 0x0, 0x0, 0x0, 0x0, 0x1000]}) (async) ioctl$KVM_RUN(r5, 0xae80, 0x0)Opportunistically use guard() to avoid having to define a new error labeland goto usage.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:PCI: endpoint: pci-epf-vntb: Remove duplicate resource teardownepf_ntb_epc_destroy() duplicates the teardown that the caller issupposed to perform later. This leads to an oops when .allow_link failsor when .drop_link is performed. The following is an example oops of theformer case: Unable to handle kernel paging request at virtual address dead000000000108 [...] [dead000000000108] address between user and kernel address ranges Internal error: Oops: 0000000096000044 [#1] SMP [...] Call trace: pci_epc_remove_epf+0x78/0xe0 (P) pci_primary_epc_epf_link+0x88/0xa8 configfs_symlink+0x1f4/0x5a0 vfs_symlink+0x134/0x1d8 do_symlinkat+0x88/0x138 __arm64_sys_symlinkat+0x74/0xe0 [...]Remove the helper, and drop pci_epc_put(). EPC device refcounting istied to the configfs EPC group lifetime, and pci_epc_put() in the.drop_link path is sufficient.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:ocfs2: handle invalid dinode in ocfs2_group_extend[BUG]kernel BUG at fs/ocfs2/resize.c:308!Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTIRIP: 0010:ocfs2_group_extend+0x10aa/0x1ae0 fs/ocfs2/resize.c:308Code: 8b8520ff ffff83f8 860f8580 030000e8 5cc3c1feCall Trace: ... ocfs2_ioctl+0x175/0x6e0 fs/ocfs2/ioctl.c:869 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl fs/ioctl.c:583 [inline] __x64_sys_ioctl+0x197/0x1e0 fs/ioctl.c:583 x64_sys_call+0x1144/0x26a0 arch/x86/include/generated/asm/syscalls_64.h:17 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x93/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x76/0x7e ...[CAUSE]ocfs2_group_extend() assumes that the global bitmap inode blockreturned from ocfs2_inode_lock() has already been validated andBUG_ONs when the signature is not a dinode. That assumption is toostrong for crafted filesystems because the JBD2-managed buffer pathcan bypass structural validation and return an invalid dinode to theresize ioctl.[FIX]Validate the dinode explicitly in ocfs2_group_extend(). If the globalbitmap buffer does not contain a valid dinode, report filesystemcorruption with ocfs2_error() and fail the resize operation instead ofcrashing the kernel.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:arm64: mm: Handle invalid large leaf mappings correctlyIt has been possible for a long time to mark ptes in the linear map asinvalid. This is done for secretmem, kfence, realm dma memory un/share,and others, by simply clearing the PTE_VALID bit. But until commita166563e7ec37 ("arm64: mm: support large block mapping whenrodata=full") large leaf mappings were never made invalid in this way.It turns out various parts of the code base are not equipped to handleinvalid large leaf mappings (in the way they are currently encoded) andI've observed a kernel panic while booting a realm guest on aBBML2_NOABORT system as a result:[ 15.432706] software IO TLB: Memory encryption is active and system is using DMA bounce buffers[ 15.476896] Unable to handle kernel paging request at virtual address ffff000019600000[ 15.513762] Mem abort info:[ 15.527245] ESR = 0x0000000096000046[ 15.548553] EC = 0x25: DABT (current EL), IL = 32 bits[ 15.572146] SET = 0, FnV = 0[ 15.592141] EA = 0, S1PTW = 0[ 15.612694] FSC = 0x06: level 2 translation fault[ 15.640644] Data abort info:[ 15.661983] ISV = 0, ISS = 0x00000046, ISS2 = 0x00000000[ 15.694875] CM = 0, WnR = 1, TnD = 0, TagAccess = 0[ 15.723740] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0[ 15.755776] swapper pgtable: 4k pages, 48-bit VAs, pgdp=0000000081f3f000[ 15.800410] [ffff000019600000] pgd=0000000000000000, p4d=180000009ffff403, pud=180000009fffe403, pmd=00e8000199600704[ 15.855046] Internal error: Oops: 0000000096000046 [#1] SMP[ 15.886394] Modules linked in:[ 15.900029] CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Not tainted 7.0.0-rc4-dirty #4 PREEMPT[ 15.935258] Hardware name: linux,dummy-virt (DT)[ 15.955612] pstate: 21400005 (nzCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--)[ 15.986009] pc : __pi_memcpy_generic+0x128/0x22c[ 16.006163] lr : swiotlb_bounce+0xf4/0x158[ 16.024145] sp : ffff80008000b8f0[ 16.038896] x29: ffff80008000b8f0 x28: 0000000000000000 x27: 0000000000000000[ 16.069953] x26: ffffb3976d261ba8 x25: 0000000000000000 x24: ffff000019600000[ 16.100876] x23: 0000000000000001 x22: ffff0000043430d0 x21: 0000000000007ff0[ 16.131946] x20: 0000000084570010 x19: 0000000000000000 x18: ffff00001ffe3fcc[ 16.163073] x17: 0000000000000000 x16: 00000000003fffff x15: 646e612065766974[ 16.194131] x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000[ 16.225059] x11: 0000000000000000 x10: 0000000000000010 x9 : 0000000000000018[ 16.256113] x8 : 0000000000000018 x7 : 0000000000000000 x6 : 0000000000000000[ 16.287203] x5 : ffff000019607ff0 x4 : ffff000004578000 x3 : ffff000019600000[ 16.318145] x2 : 0000000000007ff0 x1 : ffff000004570010 x0 : ffff000019600000[ 16.349071] Call trace:[ 16.360143] __pi_memcpy_generic+0x128/0x22c (P)[ 16.380310] swiotlb_tbl_map_single+0x154/0x2b4[ 16.400282] swiotlb_map+0x5c/0x228[ 16.415984] dma_map_phys+0x244/0x2b8[ 16.432199] dma_map_page_attrs+0x44/0x58[ 16.449782] virtqueue_map_page_attrs+0x38/0x44[ 16.469596] virtqueue_map_single_attrs+0xc0/0x130[ 16.490509] virtnet_rq_alloc.isra.0+0xa4/0x1fc[ 16.510355] try_fill_recv+0x2a4/0x584[ 16.526989] virtnet_open+0xd4/0x238[ 16.542775] __dev_open+0x110/0x24c[ 16.558280] __dev_change_flags+0x194/0x20c[ 16.576879] netif_change_flags+0x24/0x6c[ 16.594489] dev_change_flags+0x48/0x7c[ 16.611462] ip_auto_config+0x258/0x1114[ 16.628727] do_one_initcall+0x80/0x1c8[ 16.645590] kernel_init_freeable+0x208/0x2f0[ 16.664917] kernel_init+0x24/0x1e0[ 16.680295] ret_from_fork+0x10/0x20[ 16.696369] Code: 927cec03 cb0e0021 8b0e0042 a9411c26 (a900340c)[ 16.723106] ---[ end trace 0000000000000000 ]---[ 16.752866] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b[ 16.792556] Kernel Offset: 0x3396ea200000 from 0xffff8000800000---truncated---
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:vfio/xe: Reorganize the init to decouple migration from resetAttempting to issue reset on VF devices that don't support migrationleads to the following: BUG: unable to handle page fault for address: 00000000000011f8 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 0 P4D 0 Oops: Oops: 0000 [#1] SMP NOPTI CPU: 2 UID: 0 PID: 7443 Comm: xe_sriov_flr Tainted: G S U 7.0.0-rc1-lgci-xe-xe-4588-cec43d5c2696af219-nodebug+ #1 PREEMPT(lazy) Tainted: [S]=CPU_OUT_OF_SPEC, [U]=USER Hardware name: Intel Corporation Alder Lake Client Platform/AlderLake-P DDR4 RVP, BIOS RPLPFWI1.R00.4035.A00.2301200723 01/20/2023 RIP: 0010:xe_sriov_vfio_wait_flr_done+0xc/0x80 [xe] Code: ff c3 cc cc cc cc 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 44 00 00 55 48 89 e5 41 54 53 <83> bf f8 11 00 00 02 75 61 41 89 f4 85 f6 74 52 48 8b 47 08 48 89 RSP: 0018:ffffc9000f7c39b8 EFLAGS: 00010202 RAX: ffffffffa04d8660 RBX: ffff88813e3e4000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc9000f7c39c8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff888101a48800 R13: ffff88813e3e4150 R14: ffff888130d0d008 R15: ffff88813e3e40d0 FS: 00007877d3d0d940(0000) GS:ffff88890b6d3000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000000011f8 CR3: 000000015a762000 CR4: 0000000000f52ef0 PKRU: 55555554 Call Trace: xe_vfio_pci_reset_done+0x49/0x120 [xe_vfio_pci] pci_dev_restore+0x3b/0x80 pci_reset_function+0x109/0x140 reset_store+0x5c/0xb0 dev_attr_store+0x17/0x40 sysfs_kf_write+0x72/0x90 kernfs_fop_write_iter+0x161/0x1f0 vfs_write+0x261/0x440 ksys_write+0x69/0xf0 __x64_sys_write+0x19/0x30 x64_sys_call+0x259/0x26e0 do_syscall_64+0xcb/0x1500 ? __fput+0x1a2/0x2d0 ? fput_close_sync+0x3d/0xa0 ? __x64_sys_close+0x3e/0x90 ? x64_sys_call+0x1b7c/0x26e0 ? do_syscall_64+0x109/0x1500 ? __task_pid_nr_ns+0x68/0x100 ? __do_sys_getpid+0x1d/0x30 ? x64_sys_call+0x10b5/0x26e0 ? do_syscall_64+0x109/0x1500 ? putname+0x41/0x90 ? do_faccessat+0x1e8/0x300 ? __x64_sys_access+0x1c/0x30 ? x64_sys_call+0x1822/0x26e0 ? do_syscall_64+0x109/0x1500 ? tick_program_event+0x43/0xa0 ? hrtimer_interrupt+0x126/0x260 ? irqentry_exit+0xb2/0x710 entry_SYSCALL_64_after_hwframe+0x76/0x7e RIP: 0033:0x7877d5f1c5a4 Code: c7 00 16 00 00 00 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 80 3d a5 ea 0e 00 00 74 13 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 54 c3 0f 1f 00 55 48 89 e5 48 83 ec 20 48 89 RSP: 002b:00007fff48e5f908 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007877d5f1c5a4 RDX: 0000000000000001 RSI: 00007877d621b0c9 RDI: 0000000000000009 RBP: 0000000000000001 R08: 00005fb49113b010 R09: 0000000000000007 R10: 0000000000000000 R11: 0000000000000202 R12: 00007877d621b0c9 R13: 0000000000000009 R14: 00007fff48e5fac0 R15: 00007fff48e5fac0 This is caused by the fact that some of the xe_vfio_pci_core_devicemembers needed for handling reset are only initialized as part ofmigration init.Fix the problem by reorganizing the code to decouple VF init frommigration init.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:fbdev: tdfxfb: avoid divide-by-zero on FBIOPUT_VSCREENINFOMuch like commit 19f953e74356 ("fbdev: fb_pm2fb: Avoid potential divideby zero error"), we also need to prevent that same crash from happeningin the udlfb driver as it uses pixclock directly when dividing, whichwill crash.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:HID: core: clamp report_size in s32ton() to avoid undefined shifts32ton() shifts by n-1 where n is the field's report_size, a value thatcomes directly from a HID device. The HID parser bounds report_sizeonly to <= 256, so a broken HID device can supply a report descriptorwith a wide field that triggers shift exponents up to 256 on a 32-bittype when an output report is built via hid_output_field() orhid_set_field().Commit ec61b41918587 ("HID: core: fix shift-out-of-bounds inhid_report_raw_event") added the same n > 32 clamp to the functionsnto32(), but s32ton() was never given the same fix as I guess syzbothadn't figured out how to fuzz a device the same way.Fix this up by just clamping the max value of n, just like snto32()does.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:rxrpc: proc: size address buffers for %pISpc outputThe AF_RXRPC procfs helpers format local and remote socket addresses intofixed 50-byte stack buffers with "%pISpc".That is too small for the longest current-tree IPv6-with-port form theformatter can produce. In lib/vsprintf.c, the compressed IPv6 path uses adotted-quad tail not only for v4mapped addresses, but also for ISATAPaddresses via ipv6_addr_is_isatap().As a result, a case such as [ffff:ffff:ffff:ffff:0:5efe:255.255.255.255]:65535is possible with the current formatter. That is 50 visible characters, so51 bytes including the trailing NUL, which does not fit in the existingchar[50] buffers used by net/rxrpc/proc.c.Size the buffers from the formatter's maximum textual form and switch thecall sites to scnprintf().Changes since v1:- correct the changelog to cite the actual maximum current-tree case explicitly- frame the proof around the ISATAP formatting path instead of the earlier mapped-v4 example
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:rxrpc: reject undecryptable rxkad response ticketsrxkad_decrypt_ticket() decrypts the RXKAD response ticket and thenparses the buffer as plaintext without checking whethercrypto_skcipher_decrypt() succeeded.A malformed RESPONSE can therefore use a non-block-aligned ticketlength, make the decrypt operation fail, and still drive the ticketparser with attacker-controlled bytes.Check the decrypt result and abort the connection with RXKADBADTICKETwhen ticket decryption fails.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:rxrpc: Fix key reference count leak from call->keyWhen creating a client call in rxrpc_alloc_client_call(), the code obtainsa reference to the key. This is never cleaned up and gets leaked when thecall is destroyed.Fix this by freeing call->key in rxrpc_destroy_call().Before the patch, it shows the key reference counter elevated:$ cat /proc/keys | grep afs@543211bffe9cd I--Q--i 8053480 4169w 3b010000 1000 1000 rxrpc afs@54321: ka$After the patch, the invalidated key is removed when the code exits:$ cat /proc/keys | grep afs@54321$
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:rxrpc: Fix call removal to use RCU safe deletionFix rxrpc call removal from the rxnet->calls list to use list_del_rcu()rather than list_del_init() to prevent stuffing up reading/proc/net/rxrpc/calls from potentially getting into an infinite loop.This, however, means that list_empty() no longer works on an entry that'sbeen deleted from the list, making it harder to detect prior deletion. Fixthis by:Firstly, make rxrpc_destroy_all_calls() only dump the first ten calls thatare unexpectedly still on the list. Limiting the number of steps meansthere's no need to call cond_resched() or to remove calls from the listhere, thereby eliminating the need for rxrpc_put_call() to check for that.rxrpc_put_call() can then be fixed to unconditionally delete the call fromthe list as it is the only place that the deletion occurs.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:net: lan966x: fix page_pool error handling in lan966x_fdma_rx_alloc_page_pool()page_pool_create() can return an ERR_PTR on failure. The return valueis used unconditionally in the loop that follows, passing the errorpointer through xdp_rxq_info_reg_mem_model() into page_pool_use_xdp_mem(),which dereferences it, causing a kernel oops.Add an IS_ERR check after page_pool_create() to return early on failure.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:idpf: fix PREEMPT_RT raw/bh spinlock nesting for async VC handlingSwitch from using the completion's raw spinlock to a local lock in theidpf_vc_xn struct. The conversion is safe because complete/_all() arecalled outside the lock and there is no reason to share the completionlock in the current logic. This avoids invalid wait context reported bythe kernel due to the async handler taking BH spinlock:[ 805.726977] =============================[ 805.726991] [ BUG: Invalid wait context ][ 805.727006] 7.0.0-rc2-net-devq-031026+ #28 Tainted: G S OE[ 805.727026] -----------------------------[ 805.727038] kworker/u261:0/572 is trying to lock:[ 805.727051] ff190da6a8dbb6a0 (&vport_config->mac_filter_list_lock){+...}-{3:3}, at: idpf_mac_filter_async_handler+0xe9/0x260 [idpf][ 805.727099] other info that might help us debug this:[ 805.727111] context-{5:5}[ 805.727119] 3 locks held by kworker/u261:0/572:[ 805.727132] #0: ff190da6db3e6148 ((wq_completion)idpf-0000:83:00.0-mbx){+.+.}-{0:0}, at: process_one_work+0x4b5/0x730[ 805.727163] #1: ff3c6f0a6131fe50 ((work_completion)(&(&adapter->mbx_task)->work)){+.+.}-{0:0}, at: process_one_work+0x1e5/0x730[ 805.727191] #2: ff190da765190020 (&x->wait#34){+.+.}-{2:2}, at: idpf_recv_mb_msg+0xc8/0x710 [idpf][ 805.727218] stack backtrace:...[ 805.727238] Workqueue: idpf-0000:83:00.0-mbx idpf_mbx_task [idpf][ 805.727247] Call Trace:[ 805.727249] [ 805.727251] dump_stack_lvl+0x77/0xb0[ 805.727259] __lock_acquire+0xb3b/0x2290[ 805.727268] ? __irq_work_queue_local+0x59/0x130[ 805.727275] lock_acquire+0xc6/0x2f0[ 805.727277] ? idpf_mac_filter_async_handler+0xe9/0x260 [idpf][ 805.727284] ? _printk+0x5b/0x80[ 805.727290] _raw_spin_lock_bh+0x38/0x50[ 805.727298] ? idpf_mac_filter_async_handler+0xe9/0x260 [idpf][ 805.727303] idpf_mac_filter_async_handler+0xe9/0x260 [idpf][ 805.727310] idpf_recv_mb_msg+0x1c8/0x710 [idpf][ 805.727317] process_one_work+0x226/0x730[ 805.727322] worker_thread+0x19e/0x340[ 805.727325] ? __pfx_worker_thread+0x10/0x10[ 805.727328] kthread+0xf4/0x130[ 805.727333] ? __pfx_kthread+0x10/0x10[ 805.727336] ret_from_fork+0x32c/0x410[ 805.727345] ? __pfx_kthread+0x10/0x10[ 805.727347] ret_from_fork_asm+0x1a/0x30[ 805.727354]
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:pmdomain: imx8mp-blk-ctrl: Keep the NOC_HDCP clock enabledKeep the NOC_HDCP clock always enabled to fix the potential hangcaused by the NoC ADB400 port power down handshake.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:xfrm: clear trailing padding in build_polexpire()build_expire() clears the trailing padding bytes of structxfrm_user_expire after setting the hard field via memset_after(),but the analogous function build_polexpire() does not do this forstruct xfrm_user_polexpire.The padding bytes after the __u8 hard field are leftuninitialized from the heap allocation, and are then sent touserspace via netlink multicast to XFRMNLGRP_EXPIRE listeners,leaking kernel heap memory contents.Add the missing memset_after() call, matching build_expire().
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:net: rfkill: prevent unlimited numbers of rfkill events from being createdUserspace can create an unlimited number of rfkill events if the systemis so configured, while not consuming them from the rfkill filedescriptor, causing a potential out of memory situation. Prevent thisfrom bounding the number of pending rfkill events at a "large" number(i.e. 1000) to prevent abuses like this.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:netfilter: ip6t_rt: reject oversized addrnr in rt_mt6_check()Reject rt match rules whose addrnr exceeds IP6T_RT_HOPS.rt_mt6() expects addrnr to stay within the bounds of rtinfo->addrs[].Validate addrnr during rule installation so malformed rules are rejectedbefore the match logic can use an out-of-range value.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:crypto: af_alg - limit RX SG extraction by receive buffer budgetMake af_alg_get_rsgl() limit each RX scatterlist extraction to theremaining receive buffer budget.af_alg_get_rsgl() currently uses af_alg_readable() only as a gatebefore extracting data into the RX scatterlist. Limit each extractionto the remaining af_alg_rcvbuf(sk) budget so that receive-sideaccounting matches the amount of data attached to the request.If skcipher cannot obtain enough RX space for at least one chunk whilemore data remains to be processed, reject the recvmsg call instead ofrounding the request length down to zero.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:xen/privcmd: fix double free via VMA splittingprivcmd_vm_ops defines .close (privcmd_close), but neither .may_splitnor .open. When userspace does a partial munmap() on a privcmd mapping,the kernel splits the VMA via __split_vma(). Since may_split is NULL,the split is allowed. vm_area_dup() copies vm_private_data (a pagesarray allocated in alloc_empty_pages()) into the new VMA without anyfixup, because there is no .open callback.Both VMAs now point to the same pages array. When the unmapped portionis closed, privcmd_close() calls: - xen_unmap_domain_gfn_range() - xen_free_unpopulated_pages() - kvfree(pages)The surviving VMA still holds the dangling pointer. When it is laterdestroyed, the same sequence runs again, which leads to a double free.Fix this issue by adding a .may_split callback denying the VMA split.This is XSA-487 / CVE-2026-31787
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. Prior to version 0.9-rc4, any unprivileged local user can crash avahi-daemon by sending a single D-Bus method call with conflicting publish flags. This issue has been patched in version 0.9-rc4.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- libavahi-client3 > 0-0 (version in image is 0.8-150600.15.15.1).
-
Description: Unknown.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- python3-pyOpenSSL > 0-0 (version in image is 21.0.0-150400.10.1).
-
Description: A flaw was found in tar. A remote attacker could exploit this vulnerability by crafting a malicious archive, leading to hidden file injection with fully attacker-controlled content. This bypasses pre-extraction inspection mechanisms, potentially allowing an attacker to introduce malicious files onto a system without detection.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- tar > 0-0 (version in image is 1.34-150000.3.37.1).
-
Description: A flaw was found in libefiboot, a component of efivar. The device path node parser in libefiboot fails to validate that each node's Length field is at least 4 bytes, which is the minimum size for an EFI (Extensible Firmware Interface) device path node header. A local user could exploit this vulnerability by providing a specially crafted device path node. This can lead to infinite recursion, causing stack exhaustion and a process crash, resulting in a denial of service (DoS).
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- libefivar1 > 0-0 (version in image is 37-6.12.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:serial: sc16is7xx: setup GPIO controller later in probeThe GPIO controller component of the sc16is7xx driver is setup tooearly, which can result in a race condition where another device triesto utilise the GPIO lines before the sc16is7xx device has finishedinitialising.This issue manifests itself as an Oops when the GPIO lines are configured: Unable to handle kernel read from unreadable memory at virtual address ... pc : sc16is7xx_gpio_direction_output+0x68/0x108 [sc16is7xx] lr : sc16is7xx_gpio_direction_output+0x4c/0x108 [sc16is7xx] ... Call trace: sc16is7xx_gpio_direction_output+0x68/0x108 [sc16is7xx] gpiod_direction_output_raw_commit+0x64/0x318 gpiod_direction_output+0xb0/0x170 create_gpio_led+0xec/0x198 gpio_led_probe+0x16c/0x4f0 platform_drv_probe+0x5c/0xb0 really_probe+0xe8/0x448 driver_probe_device+0xe8/0x138 __device_attach_driver+0x94/0x118 bus_for_each_drv+0x8c/0xe0 __device_attach+0x100/0x1b8 device_initial_probe+0x28/0x38 bus_probe_device+0xa4/0xb0 deferred_probe_work_func+0x90/0xe0 process_one_work+0x1c4/0x480 worker_thread+0x54/0x430 kthread+0x138/0x150 ret_from_fork+0x10/0x1cThis patch moves the setup of the GPIO controller functions to later in theprobe function, ensuring the sc16is7xx device has already finishedinitialising by the time other devices try to make use of the GPIO lines.The error handling has also been reordered to reflect the newinitialisation order.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:ceph: fix race condition validating r_parent before applying stateAdd validation to ensure the cached parent directory inode matches thedirectory info in MDS replies. This prevents client-side race conditionswhere concurrent operations (e.g. rename) cause r_parent to become stalebetween request initiation and reply processing, which could lead toapplying state changes to incorrect directory inodes.[ idryomov: folded a kerneldoc fixup and a follow-up fix from Alex to move CEPH_CAP_PIN reference when r_parent is updated: When the parent directory lock is not held, req->r_parent can become stale and is updated to point to the correct inode. However, the associated CEPH_CAP_PIN reference was not being adjusted. The CEPH_CAP_PIN is a reference on an inode that is tracked for accounting purposes. Moving this pin is important to keep the accounting balanced. When the pin was not moved from the old parent to the new one, it created two problems: The reference on the old, stale parent was never released, causing a reference leak. A reference for the new parent was never acquired, creating the risk of a reference underflow later in ceph_mdsc_release_request(). This patch corrects the logic by releasing the pin from the old parent and acquiring it for the new parent when r_parent is switched. This ensures reference accounting stays balanced. ]
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:btrfs: ensure no dirty metadata is written back for an fs with errors[BUG]During development of a minor feature (make sure all btrfs_bio::end_io()is called in task context), I noticed a crash in generic/388, wheremetadata writes triggered new works after btrfs_stop_all_workers().It turns out that it can even happen without any code modification, justusing RAID5 for metadata and the same workload from generic/388 is goingto trigger the use-after-free.[CAUSE]If btrfs hits an error, the fs is marked as error, no newtransaction is allowed thus metadata is in a frozen state.But there are some metadata modifications before that error, and they arestill in the btree inode page cache.Since there will be no real transaction commit, all those dirty foliosare just kept as is in the page cache, and they can not be invalidatedby invalidate_inode_pages2() call inside close_ctree(), because they aredirty.And finally after btrfs_stop_all_workers(), we call iput() on btreeinode, which triggers writeback of those dirty metadata.And if the fs is using RAID56 metadata, this will trigger RMW and queuenew works into rmw_workers, which is already stopped, causing warningfrom queue_work() and use-after-free.[FIX]Add a special handling for write_one_eb(), that if the fs is already inan error state, immediately mark the bbio as failure, instead of reallysubmitting them.Then during close_ctree(), iput() will just discard all those dirtytree blocks without really writing them back, thus no more new jobs foralready stopped-and-freed workqueues.The extra discard in write_one_eb() also acts as an extra safenet.E.g. the transaction abort is triggered by some extent/free spacetree corruptions, and since extent/free space tree is already corruptedsome tree blocks may be allocated where they shouldn't be (overwritingexisting tree blocks). In that case writing them back will furthercorrupting the fs.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: The html.Parse function in golang.org/x/net/html has quadratic parsing complexity when processing certain inputs, which can lead to denial of service (DoS) if an attacker provides specially crafted HTML content.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- docker > 0-0 (version in image is 28.5.1_ce-150000.245.2).
-
Description: SSH Agent servers do not validate the size of messages when processing new identity requests, which may cause the program to panic if the message is malformed due to an out of bounds read.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- amazon-ssm-agent > 0-0 (version in image is 3.3.1611.0-150000.5.26.1).
-
Description: SSH servers parsing GSSAPI authentication requests do not validate the number of mechanisms specified in the request, allowing an attacker to cause unbounded memory consumption.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- amazon-ssm-agent > 0-0 (version in image is 3.3.1611.0-150000.5.26.1).
-
Description: A security flaw has been discovered in vim up to 9.1.1615. Affected by this vulnerability is the function main of the file src/xxd/xxd.c of the component xxd. The manipulation results in buffer overflow. The attack requires a local approach. The exploit has been released to the public and may be exploited. Upgrading to version 9.1.1616 addresses this issue. The patch is identified as eeef7c77436a78cd27047b0f5fa6925d56de3cb0. It is recommended to upgrade the affected component.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- vim > 0-0 (version in image is 9.2.0280-150500.20.46.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:scsi: qla2xxx: Sanitize payload size to prevent member overflowIn qla27xx_copy_fpin_pkt() and qla27xx_copy_multiple_pkt(), the frame_sizereported by firmware is used to calculate the copy length intoitem->iocb. However, the iocb member is defined as a fixed-size 64-bytearray within struct purex_item.If the reported frame_size exceeds 64 bytes, subsequent memcpy calls willoverflow the iocb member boundary. While extra memory might be allocated,this cross-member write is unsafe and triggers warnings underCONFIG_FORTIFY_SOURCE.Fix this by capping total_bytes to the size of the iocb member (64 bytes)before allocation and copying. This ensures all copies remain within thebounds of the destination structure member.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:perf: Fix __perf_event_overflow() vs perf_remove_from_context() raceMake sure that __perf_event_overflow() runs with IRQs disabled for allpossible callchains. Specifically the software events can end up runningit with only preemption disabled.This opens up a race vs perf_event_exit_event() and friends that will goand free various things the overflow path expects to be present, likethe BPF program.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:atm: lec: fix null-ptr-deref in lec_arp_clear_vccssyzkaller reported a null-ptr-deref in lec_arp_clear_vccs().This issue can be easily reproduced using the syzkaller reproducer.In the ATM LANE (LAN Emulation) module, the same atm_vcc can be shared bymultiple lec_arp_table entries (e.g., via entry->vcc or entry->recv_vcc).When the underlying VCC is closed, lec_vcc_close() iterates over allARP entries and calls lec_arp_clear_vccs() for each matched entry.For example, when lec_vcc_close() iterates through the hlists inpriv->lec_arp_empty_ones or other ARP tables:1. In the first iteration, for the first matched ARP entry sharing the VCC,lec_arp_clear_vccs() frees the associated vpriv (which is vcc->user_back)and sets vcc->user_back to NULL.2. In the second iteration, for the next matched ARP entry sharing the sameVCC, lec_arp_clear_vccs() is called again. It obtains a NULL vpriv fromvcc->user_back (via LEC_VCC_PRIV(vcc)) and then attempts to dereference itvia `vcc->pop = vpriv->old_pop`, leading to a null-ptr-deref crash.Fix this by adding a null check for vpriv before dereferencingit. If vpriv is already NULL, it means the VCC has been clearedby a previous call, so we can safely skip the cleanup and justclear the entry's vcc/recv_vcc pointers.The entire cleanup block (including vcc_release_async()) is placed insidethe vpriv guard because a NULL vpriv indicates the VCC has already beenfully released by a prior iteration - repeating the teardown wouldredundantly set flags and trigger callbacks on an already-closing socket.The Fixes tag points to the initial commit because the entry->vcc path hasbeen vulnerable since the original code. The entry->recv_vcc path was lateradded by commit 8d9f73c0ad2f ("atm: fix a memory leak of vcc->user_back")with the same pattern, and both paths are fixed here.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:netfilter: nf_conntrack_h323: fix OOB read in decode_int() CONS caseIn decode_int(), the CONS case calls get_bits(bs, 2) to read a lengthvalue, then calls get_uint(bs, len) without checking that len bytesremain in the buffer. The existing boundary check only validates the2 bits for get_bits(), not the subsequent 1-4 bytes that get_uint()reads. This allows a malformed H.323/RAS packet to cause a 1-4 byteslab-out-of-bounds read.Add a boundary check for len bytes after get_bits() and beforeget_uint().
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:netfilter: nf_conntrack_sip: fix Content-Length u32 truncation in sip_help_tcp()sip_help_tcp() parses the SIP Content-Length header withsimple_strtoul(), which returns unsigned long, but stores the result inunsigned int clen. On 64-bit systems, values exceeding UINT_MAX aresilently truncated before computing the SIP message boundary.For example, Content-Length 4294967328 (2^32 + 32) is truncated to 32,causing the parser to miscalculate where the current message ends. Theloop then treats trailing data in the TCP segment as a second SIPmessage and processes it through the SDP parser.Fix this by changing clen to unsigned long to match the return type ofsimple_strtoul(), and reject Content-Length values that exceed theremaining TCP payload length.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:spi: use generic driver_override infrastructureWhen a driver is probed through __driver_attach(), the bus' match()callback is called without the device lock held, thus accessing thedriver_override field without a lock, which can cause a UAF.Fix this by using the driver-core driver_override infrastructure takingcare of proper locking internally.Note that calling match() from __driver_attach() without the device lockheld is intentional. [1]Also note that we do not enable the driver_override feature of structbus_type, as SPI - in contrast to most other buses - passes "" tosysfs_emit() when the driver_override pointer is NULL. Thus, printing"\n" instead of "(null)\n".
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:Bluetooth: L2CAP: Fix deadlock in l2cap_conn_del()l2cap_conn_del() calls cancel_delayed_work_sync() for both info_timerand id_addr_timer while holding conn->lock. However, the work functionsl2cap_info_timeout() and l2cap_conn_update_id_addr() both acquireconn->lock, creating a potential AB-BA deadlock if the work is alreadyexecuting when l2cap_conn_del() takes the lock.Move the work cancellations before acquiring conn->lock and usedisable_delayed_work_sync() to additionally prevent the works frombeing rearmed after cancellation, consistent with the pattern used inhci_conn_del().
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: Vim is an open source, command line text editor. From 9.1.0011 to before 9.2.0137, Vim's NFA regex compiler, when encountering a collection containing a combining character as the endpoint of a character range (e.g. [0-0\u05bb]), incorrectly emits the composing bytes of that character as separate NFA states. This corrupts the NFA postfix stack, resulting in NFA_START_COLL having a NULL out1 pointer. When nfa_max_width() subsequently traverses the compiled NFA to estimate match width for the look-behind assertion, it dereferences state->out1->out without a NULL check, causing a segmentation fault. This vulnerability is fixed in 9.2.0137.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- vim > 0-0 (version in image is 9.2.0280-150500.20.46.1).
-
Description: When calling base64.b64decode() or related functions the decoding process would stop after encountering the first padded quad regardless of whether there was more information to be processed. This can lead to data being accepted which may be processed differently by other implementations. Use "validate=True" to enable stricter processing of base64 data.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- python3 > 0-0 (version in image is 3.6.15-150300.10.109.1).
-
Description: The deprecated functions ns_printrrf, ns_printrr and fp_nquery in the GNU C Library version 2.2 and newer fail to enforce the caller-supplied buffer length, and can result in an out-of-bounds write when printing TSIG records.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- glibc > 0-0 (version in image is 2.38-150600.14.46.1).
-
Description: The deprecated functions ns_printrrf, ns_printrr and fp_nquery in the GNU C Library version 2.2 and newer fail to validate the RDATA content against the RDATA length in a DNS response when processing LOC, CERT, TKEY or TSIG records, which may allow an attacker to craft a DNS response, causing a target application to crash or read uninitialized memory.These functions are for application debugging only and hence not in the path of code executed by the DNS resolver. Further, they have been deprecated since version 2.34 and should not be used by any new applications. Applications should consider porting away from these interfaces since they may be removed in future versions.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- glibc > 0-0 (version in image is 2.38-150600.14.46.1).
-
Description: A cross-privilege Spectre v2 vulnerability allows attackers to bypass all deployed mitigations, including the recent Fine(IBT), and to leak arbitrary Linux kernel memory on Intel systems.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: Unknown.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- qemu-img > 0-0 (version in image is 9.2.4-150700.3.17.1).
-
Description: Incorrect behavior order for some Intel(R) Core(tm) Ultra Processors may allow an unauthenticated user to potentially enable information disclosure via physical access.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: CR/LF bytes were not rejected by HTTP client proxy tunnel headers or host.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- python3 > 0-0 (version in image is 3.6.15-150300.10.109.1).
-
Description: wget2 accepts a server certificate with incorrect Key Usage (KU) or Extended Key Usage (EKU). If the attackers compromise a certificate (with the associated private key) issued for a different purpose, they may be able to reuse it for TLS server authentication.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- wget > 0-0 (version in image is 1.24.5-150700.1.5).
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Description: In the Linux kernel, the following vulnerability has been resolved:batman-adv: avoid OGM aggregation when skb tailroom is insufficientWhen OGM aggregation state is toggled at runtime, an existing forwardedpacket may have been allocated with only packet_len bytes, while a laterpacket can still be selected for aggregation. Appending in this case canhit skb_put overflow conditions.Reject aggregation when the target skb tailroom cannot accommodate the newpacket. The caller then falls back to creating a new forward packetinstead of appending.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:mm/vmalloc: fix data race in show_numa_info()The following data-race was found in show_numa_info():==================================================================BUG: KCSAN: data-race in vmalloc_info_show / vmalloc_info_showread to 0xffff88800971fe30 of 4 bytes by task 8289 on cpu 0: show_numa_info mm/vmalloc.c:4936 [inline] vmalloc_info_show+0x5a8/0x7e0 mm/vmalloc.c:5016 seq_read_iter+0x373/0xb40 fs/seq_file.c:230 proc_reg_read_iter+0x11e/0x170 fs/proc/inode.c:299....write to 0xffff88800971fe30 of 4 bytes by task 8287 on cpu 1: show_numa_info mm/vmalloc.c:4934 [inline] vmalloc_info_show+0x38f/0x7e0 mm/vmalloc.c:5016 seq_read_iter+0x373/0xb40 fs/seq_file.c:230 proc_reg_read_iter+0x11e/0x170 fs/proc/inode.c:299....value changed: 0x0000008f -> 0x00000000==================================================================According to this report,there is a read/write data-race becausem->private is accessible to multiple CPUs. To fix this, instead ofallocating the heap in proc_vmalloc_init() and passing the heap address tom->private, vmalloc_info_show() should allocate the heap.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:scsi: qla2xxx: Clear cmds after chip resetCommit aefed3e5548f ("scsi: qla2xxx: target: Fix offline port handlingand host reset handling") caused two problems:1. Commands sent to FW, after chip reset got stuck and never freed as FW is not going to respond to them anymore.2. BUG_ON(cmd->sg_mapped) in qlt_free_cmd(). Commit 26f9ce53817a ("scsi: qla2xxx: Fix missed DMA unmap for aborted commands") attempted to fix this, but introduced another bug under different circumstances when two different CPUs were racing to call qlt_unmap_sg() at the same time: BUG_ON(!valid_dma_direction(dir)) in dma_unmap_sg_attrs().So revert "scsi: qla2xxx: Fix missed DMA unmap for aborted commands" andpartially revert "scsi: qla2xxx: target: Fix offline port handling andhost reset handling" at __qla2x00_abort_all_cmds.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:btrfs: do not free data reservation in fallback from inline due to -ENOSPCIf we fail to create an inline extent due to -ENOSPC, we will attempt togo through the normal COW path, reserve an extent, create an orderedextent, etc. However we were always freeing the reserved qgroup data,which is wrong since we will use data. Fix this by freeing the reservedqgroup data in __cow_file_range_inline() only if we are not doing thefallback (ret is <= 0).
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default < 6.4.0-150700.53.37.1 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:net: marvell: prestera: fix NULL dereference on devlink_alloc() failuredevlink_alloc() may return NULL on allocation failure, butprestera_devlink_alloc() unconditionally calls devlink_priv() onthe returned pointer.This leads to a NULL pointer dereference if devlink allocation fails.Add a check for a NULL devlink pointer and return NULL early to avoidthe crash.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:phy: rockchip: inno-usb2: Fix a double free bug in rockchip_usb2phy_probe()The for_each_available_child_of_node() calls of_node_put() torelease child_np in each success loop. After breaking from theloop with the child_np has been released, the code will jump tothe put_child label and will call the of_node_put() again if thedevm_request_threaded_irq() fails. These cause a double free bug.Fix by returning directly to avoid the duplicate of_node_put().
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default < 6.4.0-150700.53.37.1 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:pNFS: Fix a deadlock when returning a delegation during open()Ben Coddington reports seeing a hang in the following stack trace: 0 [ffffd0b50e1774e0] __schedule at ffffffff9ca05415 1 [ffffd0b50e177548] schedule at ffffffff9ca05717 2 [ffffd0b50e177558] bit_wait at ffffffff9ca061e1 3 [ffffd0b50e177568] __wait_on_bit at ffffffff9ca05cfb 4 [ffffd0b50e1775c8] out_of_line_wait_on_bit at ffffffff9ca05ea5 5 [ffffd0b50e177618] pnfs_roc at ffffffffc154207b [nfsv4] 6 [ffffd0b50e1776b8] _nfs4_proc_delegreturn at ffffffffc1506586 [nfsv4] 7 [ffffd0b50e177788] nfs4_proc_delegreturn at ffffffffc1507480 [nfsv4] 8 [ffffd0b50e1777f8] nfs_do_return_delegation at ffffffffc1523e41 [nfsv4] 9 [ffffd0b50e177838] nfs_inode_set_delegation at ffffffffc1524a75 [nfsv4] 10 [ffffd0b50e177888] nfs4_process_delegation at ffffffffc14f41dd [nfsv4] 11 [ffffd0b50e1778a0] _nfs4_opendata_to_nfs4_state at ffffffffc1503edf [nfsv4] 12 [ffffd0b50e1778c0] _nfs4_open_and_get_state at ffffffffc1504e56 [nfsv4] 13 [ffffd0b50e177978] _nfs4_do_open at ffffffffc15051b8 [nfsv4] 14 [ffffd0b50e1779f8] nfs4_do_open at ffffffffc150559c [nfsv4] 15 [ffffd0b50e177a80] nfs4_atomic_open at ffffffffc15057fb [nfsv4] 16 [ffffd0b50e177ad0] nfs4_file_open at ffffffffc15219be [nfsv4] 17 [ffffd0b50e177b78] do_dentry_open at ffffffff9c09e6ea 18 [ffffd0b50e177ba8] vfs_open at ffffffff9c0a082e 19 [ffffd0b50e177bd0] dentry_open at ffffffff9c0a0935The issue is that the delegreturn is being asked to wait for a layoutreturn that cannot complete because a state recovery was initiated. Thestate recovery cannot complete until the open() finishes processing thedelegations it was given.The solution is to propagate the existing flags that indicate anon-blocking call to the function pnfs_roc(), so that it knows not towait in this situation.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:net: add proper RCU protection to /proc/net/ptypeYin Fengwei reported an RCU stall in ptype_seq_show() and provideda patch.Real issue is that ptype_seq_next() and ptype_seq_show() violateRCU rules.ptype_seq_show() runs under rcu_read_lock(), and reads pt->devto get device name without any barrier.At the same time, concurrent writers can remove a packet_type structure(which is correctly freed after an RCU grace period) and clear pt->devwithout an RCU grace period.Define ptype_iter_state to carry a dev pointer along seq_net_private:struct ptype_iter_state { struct seq_net_private p; struct net_device *dev; // added in this patch};We need to record the device pointer in ptype_get_idx() andptype_seq_next() so that ptype_seq_show() is safe againstconcurrent pt->dev changes.We also need to add full RCU protection in ptype_seq_next().(Missing READ_ONCE() when reading list.next values)Many thanks to Dong Chenchen for providing a repro.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default < 6.4.0-150700.53.37.1 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:ipv6: fix NULL pointer deref in ip6_rt_get_dev_rcu()l3mdev_master_dev_rcu() can return NULL when the slave device is beingun-slaved from a VRF. All other callers deal with this, but we lostthe fallback to loopback in ip6_rt_pcpu_alloc() -> ip6_rt_get_dev_rcu()with commit 4832c30d5458 ("net: ipv6: put host and anycast routes ondevice with address"). KASAN: null-ptr-deref in range [0x0000000000000108-0x000000000000010f] RIP: 0010:ip6_rt_pcpu_alloc (net/ipv6/route.c:1418) Call Trace: ip6_pol_route (net/ipv6/route.c:2318) fib6_rule_lookup (net/ipv6/fib6_rules.c:115) ip6_route_output_flags (net/ipv6/route.c:2607) vrf_process_v6_outbound (drivers/net/vrf.c:437)I was tempted to rework the un-slaving code to clear the flag firstand insert synchronize_rcu() before we remove the upper. But looks likethe explicit fallback to loopback_dev is an established pattern.And I guess avoiding the synchronize_rcu() is nice, too.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:sched/deadline: Fix missing ENQUEUE_REPLENISH during PI de-boostingRunning stress-ng --schedpolicy 0 on an RT kernel on a big machinemight lead to the following WARNINGs (edited). sched: DL de-boosted task PID 22725: REPLENISH flag missing WARNING: CPU: 93 PID: 0 at kernel/sched/deadline.c:239 dequeue_task_dl+0x15c/0x1f8 ... (running_bw underflow) Call trace: dequeue_task_dl+0x15c/0x1f8 (P) dequeue_task+0x80/0x168 deactivate_task+0x24/0x50 push_dl_task+0x264/0x2e0 dl_task_timer+0x1b0/0x228 __hrtimer_run_queues+0x188/0x378 hrtimer_interrupt+0xfc/0x260 ...The problem is that when a SCHED_DEADLINE task (lock holder) ischanged to a lower priority class via sched_setscheduler(), it mayfail to properly inherit the parameters of potential DEADLINE donorsif it didn't already inherit them in the past (shorter deadline thandonor's at that time). This might lead to bandwidth accountingcorruption, as enqueue_task_dl() won't recognize the lock holder asboosted.The scenario occurs when:1. A DEADLINE task (donor) blocks on a PI mutex held by another DEADLINE task (holder), but the holder doesn't inherit parameters (e.g., it already has a shorter deadline)2. sched_setscheduler() changes the holder from DEADLINE to a lower class while still holding the mutex3. The holder should now inherit DEADLINE parameters from the donor and be enqueued with ENQUEUE_REPLENISH, but this doesn't happenFix the issue by introducing __setscheduler_dl_pi(), which detects whena DEADLINE (proper or boosted) task gets setscheduled to a lowerpriority class. In case, the function makes the task inherit DEADLINEparameters of the donoer (pi_se) and sets ENQUEUE_REPLENISH flag toensure proper bandwidth accounting during the next enqueue operation.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:nf_tables: nft_dynset: fix possible stateful expression memleak in error pathIf cloning the second stateful expression in the element via GFP_ATOMICfails, then the first stateful expression remains in place without beingreleased. unreferenced object (percpu) 0x607b97e9cab8 (size 16): comm "softirq", pid 0, jiffies 4294931867 hex dump (first 16 bytes on cpu 3): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 backtrace (crc 0): pcpu_alloc_noprof+0x453/0xd80 nft_counter_clone+0x9c/0x190 [nf_tables] nft_expr_clone+0x8f/0x1b0 [nf_tables] nft_dynset_new+0x2cb/0x5f0 [nf_tables] nft_rhash_update+0x236/0x11c0 [nf_tables] nft_dynset_eval+0x11f/0x670 [nf_tables] nft_do_chain+0x253/0x1700 [nf_tables] nft_do_chain_ipv4+0x18d/0x270 [nf_tables] nf_hook_slow+0xaa/0x1e0 ip_local_deliver+0x209/0x330
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:tls: Purge async_hold in tls_decrypt_async_wait()The async_hold queue pins encrypted input skbs whilethe AEAD engine references their scatterlist data. Oncetls_decrypt_async_wait() returns, every AEAD operationhas completed and the engine no longer references thoseskbs, so they can be freed unconditionally.A subsequent patch adds batch async decryption totls_sw_read_sock(), introducing a new call site thatmust drain pending AEAD operations and release heldskbs. Move __skb_queue_purge(&ctx->async_hold) intotls_decrypt_async_wait() so the purge is centralizedand every caller -- recvmsg's drain path, the -EBUSYfallback in tls_do_decryption(), and the new read_sockbatch path -- releases held skbs on synchronizationwithout each site managing the purge independently.This fixes a leak when tls_strp_msg_hold() fails part-way through,after having added some cloned skbs to the async_holdqueue. tls_decrypt_sg() will then call tls_decrypt_async_wait() toprocess all pending decrypts, and drop back to synchronous mode, buttls_sw_recvmsg() only flushes the async_hold queue when one record hasbeen processed in "fully-async" mode, which may not be the case here.[pabeni@redhat.com: added leak comment]
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default < 6.4.0-150700.53.37.1 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:net/mlx5e: Fix race condition during IPSec ESN updateIn IPSec full offload mode, the device reports an ESN (ExtendedSequence Number) wrap event to the driver. The driver validates thisevent by querying the IPSec ASO and checking that the esn_event_armfield is 0x0, which indicates an event has occurred. After handlingthe event, the driver must re-arm the context by setting esn_event_armback to 0x1.A race condition exists in this handling path. After validating theevent, the driver calls mlx5_accel_esp_modify_xfrm() to update thekernel's xfrm state. This function temporarily releases andre-acquires the xfrm state lock.So, need to acknowledge the event first by setting esn_event_arm to0x1. This prevents the driver from reprocessing the same ESN update ifthe hardware sends events for other reason. Since the next ESN updateonly occurs after nearly 2^31 packets are received, there's no risk ofmissing an update, as it will happen long after this handling hasfinished.Processing the event twice causes the ESN high-order bits (esn_msb) tobe incremented incorrectly. The driver then programs the hardware withthis invalid ESN state, which leads to anti-replay failures and acomplete halt of IPSec traffic.Fix this by re-arming the ESN event immediately after it is validated,before calling mlx5_accel_esp_modify_xfrm(). This ensures that anyspurious, duplicate events are correctly ignored, closing the racewindow.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:io_uring/poll: fix multishot recv missing EOF on wakeup raceWhen a socket send and shutdown() happen back-to-back, both firewake-ups before the receiver's task_work has a chance to run. The firstwake gets poll ownership (poll_refs=1), and the second bumps it to 2.When io_poll_check_events() runs, it calls io_poll_issue() which does arecv that reads the data and returns IOU_RETRY. The loop then drains allaccumulated refs (atomic_sub_return(2) -> 0) and exits, even though onlythe first event was consumed. Since the shutdown is a persistent statechange, no further wakeups will happen, and the multishot recv can hangforever.Check specifically for HUP in the poll loop, and ensure that anotherloop is done to check for status if more than a single poll activationis pending. This ensures we don't lose the shutdown event.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: util-linux is a random collection of Linux utilities. Prior to version 2.41.4, a TOCTOU (Time-of-Check-Time-of-Use) vulnerability has been identified in the SUID binary /usr/bin/mount from util-linux. The mount binary, when setting up loop devices, validates the source file path with user privileges via fork() + setuid() + realpath(), but subsequently re-canonicalizes and opens it with root privileges (euid=0) without verifying that the path has not been replaced between both operations. Neither O_NOFOLLOW, nor inode comparison, nor post-open fstat() are employed. This allows a local unprivileged user to replace the source file with a symlink pointing to any root-owned file or device during the race window, causing the SUID binary to open and mount it as root. Exploitation requires an /etc/fstab entry with user,loop options whose path points to a directory where the attacker has write permission, and that /usr/bin/mount has the SUID bit set (the default configuration on virtually all Linux distributions). The impact is unauthorized read access to root-protected files and block devices, including backup images, disk volumes, and any file containing a valid filesystem. This issue has been patched in version 2.41.4.
Packages affected:
- sle-module-server-applications-release == 15.7 (version in image is 15.7-150700.28.1).
- util-linux > 0-0 (version in image is 2.40.4-150700.4.10.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:nvdimm/bus: Fix potential use after free in asynchronous initializationDingisoul with KASAN reports a use after free if device_add() fails innd_async_device_register().Commit b6eae0f61db2 ("libnvdimm: Hold reference on parent whilescheduling async init") correctly added a reference on the parent deviceto be held until asynchronous initialization was complete. However, ifdevice_add() results in an allocation failure the ref count of thedevice drops to 0 prior to the parent pointer being accessed. Thusresulting in use after free.The bug bot AI correctly identified the fix. Save a reference to theparent pointer to be used to drop the parent reference regardless of theoutcome of device_add().
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:NFSD: Defer sub-object cleanup in export put callbackssvc_export_put() calls path_put() and auth_domain_put() immediatelywhen the last reference drops, before the RCU grace period. RCUreaders in e_show() and c_show() access both ex_path (viaseq_path/d_path) and ex_client->name (via seq_escape) withoutholding a reference. If cache_clean removes the entry and drops thelast reference concurrently, the sub-objects are freed while stillin use, producing a NULL pointer dereference in d_path.Commit 2530766492ec ("nfsd: fix UAF when access ex_uuid orex_stats") moved kfree of ex_uuid and ex_stats into thecall_rcu callback, but left path_put() and auth_domain_put() runningbefore the grace period because both may sleep and call_rcucallbacks execute in softirq context.Replace call_rcu/kfree_rcu with queue_rcu_work(), which defers thecallback until after the RCU grace period and executes it in processcontext where sleeping is permitted. This allows path_put() andauth_domain_put() to be moved into the deferred callback alongsidethe other resource releases. Apply the same fix to expkey_put(),which has the identical pattern with ek_path and ek_client.A dedicated workqueue scopes the shutdown drain to only NFSDexport release work items; flushing the sharedsystem_unbound_wq would stall on unrelated work from othersubsystems. nfsd_export_shutdown() uses rcu_barrier() followedby flush_workqueue() to ensure all deferred release callbackscomplete before the export caches are destroyed.Reviwed-by: Jeff Layton
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:ext4: fix use-after-free in update_super_work when racing with umountCommit b98535d09179 ("ext4: fix bug_on in start_this_handle during umountfilesystem") moved ext4_unregister_sysfs() before flushing s_sb_upd_workto prevent new error work from being queued via /proc/fs/ext4/xx/mb_groupsreads during unmount. However, this introduced a use-after-free becauseupdate_super_work calls ext4_notify_error_sysfs() -> sysfs_notify() whichaccesses the kobject's kernfs_node after it has been freed by kobject_del()in ext4_unregister_sysfs(): update_super_work ext4_put_super ----------------- -------------- ext4_unregister_sysfs(sb) kobject_del(&sbi->s_kobj) __kobject_del() sysfs_remove_dir() kobj->sd = NULL sysfs_put(sd) kernfs_put() // RCU free ext4_notify_error_sysfs(sbi) sysfs_notify(&sbi->s_kobj) kn = kobj->sd // stale pointer kernfs_get(kn) // UAF on freed kernfs_node ext4_journal_destroy() flush_work(&sbi->s_sb_upd_work)Instead of reordering the teardown sequence, fix this by makingext4_notify_error_sysfs() detect that sysfs has already been torn downby checking s_kobj.state_in_sysfs, and skipping the sysfs_notify() callin that case. A dedicated mutex (s_error_notify_mutex) serializesext4_notify_error_sysfs() against kobject_del() in ext4_unregister_sysfs()to prevent TOCTOU races where the kobject could be deleted between thestate_in_sysfs check and the sysfs_notify() call.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:drm/amd/display: Fix drm_edid leak in amdgpu_dm[WHAT]When a sink is connected, aconnector->drm_edid was overwritten withoutfreeing the previous allocation, causing a memory leak on resume.[HOW]Free the previous drm_edid before updating it.(cherry picked from commit 52024a94e7111366141cfc5d888b2ef011f879e5)
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:tracing: Fix potential deadlock in cpu hotplug with osnoiseThe following sequence may leads deadlock in cpu hotplug: task1 task2 task3 ----- ----- ----- mutex_lock(&interface_lock) [CPU GOING OFFLINE] cpus_write_lock(); osnoise_cpu_die(); kthread_stop(task3); wait_for_completion(); osnoise_sleep(); mutex_lock(&interface_lock); cpus_read_lock(); [DEAD LOCK]Fix by swap the order of cpus_read_lock() and mutex_lock(&interface_lock).
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:s390/syscalls: Add spectre boundary for syscall dispatch tableThe s390 syscall number is directly controlled by userspace, but doesnot have an array_index_nospec() boundary to prevent access past thesyscall function pointer tables.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:esp: fix skb leak with espintcp and async cryptoWhen the TX queue for espintcp is full, esp_output_tail_tcp willreturn an error and not free the skb, because with synchronous crypto,the common xfrm output code will drop the packet for us.With async crypto (esp_output_done), we need to drop the skb whenesp_output_tail_tcp returns an error.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:pmdomain: bcm: bcm2835-power: Increase ASB control timeoutThe bcm2835_asb_control() function uses a tight polling loop to waitfor the ASB bridge to acknowledge a request. During intensive workloads,this handshake intermittently fails for V3D's master ASB on BCM2711,resulting in "Failed to disable ASB master for v3d" errors duringruntime PM suspend. As a consequence, the failed power-off leaves V3D ina broken state, leading to bus faults or system hangs on later accesses.As the timeout is insufficient in some scenarios, increase the pollingtimeout from 1us to 5us, which is still negligible in the context of apower domain transition. Also, replace the open-coded ktime_get_ns()/cpu_relax() polling loop with readl_poll_timeout_atomic().
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:i2c: designware: amdisp: Fix resume-probe race condition issueIdentified resume-probe race condition in kernel v7.0 with the commit38fa29b01a6a ("i2c: designware: Combine the init functions"),but thisissue existed from the beginning though not detected.The amdisp i2c device requires ISP to be in power-on state for probeto succeed. To meet this requirement, this device is added to genpdto control ISP power using runtime PM. The pm_runtime_get_sync() calledbefore i2c_dw_probe() triggers PM resume, which powers on ISP and alsoinvokes the amdisp i2c runtime resume before the probe completes resultingin this race condition and a NULL dereferencing issue in v7.0Fix this race condition by using the genpd APIs directly during probe: - Call dev_pm_genpd_resume() to Power ON ISP before probe - Call dev_pm_genpd_suspend() to Power OFF ISP after probe - Set the device to suspended state with pm_runtime_set_suspended() - Enable runtime PM only after the device is fully initialized
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:PCI: endpoint: pci-epf-vntb: Stop cmd_handler work in epf_ntb_epc_cleanupDisable the delayed work before clearing BAR mappings and doorbells toavoid running the handler after resources have been torn down. Unable to handle kernel paging request at virtual address ffff800083f46004 [...] Internal error: Oops: 0000000096000007 [#1] SMP [...] Call trace: epf_ntb_cmd_handler+0x54/0x200 [pci_epf_vntb] (P) process_one_work+0x154/0x3b0 worker_thread+0x2c8/0x400 kthread+0x148/0x210 ret_from_fork+0x10/0x20
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:x86/CPU: Fix FPDSS on Zen1Zen1's hardware divider can leave, under certain circumstances, partialresults from previous operations. Those results can be leaked byanother, attacker thread.Fix that with a chicken bit.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:rxrpc: fix reference count leak in rxrpc_server_keyring()This patch fixes a reference count leak in rxrpc_server_keyring()by checking if rx->securities is already set.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:net: altera-tse: fix skb leak on DMA mapping error in tse_start_xmit()When dma_map_single() fails in tse_start_xmit(), the function returnsNETDEV_TX_OK without freeing the skb. Since NETDEV_TX_OK tells thestack the packet was consumed, the skb is never freed, leaking memoryon every DMA mapping failure.Add dev_kfree_skb_any() before returning to properly free the skb.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:net: ipv6: flowlabel: defer exclusive option free until RCU teardown`ip6fl_seq_show()` walks the global flowlabel hash under the seq-fileRCU read-side lock and prints `fl->opt->opt_nflen` when an option blockis present.Exclusive flowlabels currently free `fl->opt` as soon as `fl->users`drops to zero in `fl_release()`. However, the surrounding`struct ip6_flowlabel` remains visible in the global hash table untillater garbage collection removes it and `fl_free_rcu()` finally tears itdown.A concurrent `/proc/net/ip6_flowlabel` reader can therefore race thatearly `kfree()` and dereference freed option state, triggering a crashin `ip6fl_seq_show()`.Fix this by keeping `fl->opt` alive until `fl_free_rcu()`. That matchesthe lifetime already required for the enclosing flowlabel while readerscan still reach it under RCU.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:net: usb: pegasus: validate USB endpointsThe pegasus driver should validate that the device it is probing has theproper number and types of USB endpoints it is expecting before it bindsto it. If a malicious device were to not have the same urbs the driverwill crash later on when it blindly accesses these endpoints.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:net: usb: cdc-phonet: fix skb frags[] overflow in rx_complete()A malicious USB device claiming to be a CDC Phonet modem can overflowthe skb_shared_info->frags[] array by sending an unbounded sequence offull-page bulk transfers.Drop the skb and increment the length error when the frag limit isreached. This matches the same fix that commit f0813bcd2d9d ("net:wwan: t7xx: fix potential skb->frags overflow in RX path") did for thet7xx driver.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: A flaw was found in github.com/go-viper/mapstructure/v2, in the field processing component using mapstructure.WeakDecode. This vulnerability allows information disclosure through detailed error messages that may leak sensitive input values via malformed user-supplied data processed in security-critical contexts.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- docker > 0-0 (version in image is 28.5.1_ce-150000.245.2).
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Description: In the Linux kernel, the following vulnerability has been resolved:netfilter: nf_conntrack_sip: fix use of uninitialized rtp_addr in process_sdpprocess_sdp() declares union nf_inet_addr rtp_addr on the stack andpasses it to the nf_nat_sip sdp_session hook after walking the SDPmedia descriptions. However rtp_addr is only initialized inside themedia loop when a recognized media type with a non-zero port is found.If the SDP body contains no m= lines, only inactive media sections(m=audio 0 ...) or only unrecognized media types, rtp_addr is neverassigned. Despite that, the function still calls hooks->sdp_session()with &rtp_addr, causing nf_nat_sdp_session() to format the stale stackvalue as an IP address and rewrite the SDP session owner and connectionlines with it.With CONFIG_INIT_STACK_ALL_ZERO (default on most distributions) thisresults in the session-level o= and c= addresses being rewritten to0.0.0.0 for inactive SDP sessions. Without stack auto-init therewritten address is whatever happened to be on the stack.Fix this by pre-initializing rtp_addr from the session-level connectionaddress (caddr) when available, and tracking via a have_rtp_addr flagwhether any valid address was established. Skip the sdp_session hookentirely when no valid address exists.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:af_unix: read UNIX_DIAG_VFS data under unix_state_lockExact UNIX diag lookups hold a reference to the socket, but not tou->path. Meanwhile, unix_release_sock() clears u->path underunix_state_lock() and drops the path reference after unlocking.Read the inode and device numbers for UNIX_DIAG_VFS while holdingunix_state_lock(), then emit the netlink attribute after dropping thelock.This keeps the VFS data stable while the reply is being built.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:net: core: prevent NULL deref in generic_hwtstamp_ioctl_lower()The ethtool tsconfig Netlink path can trigger a null pointerdereference. A call chain such as: tsconfig_prepare_data() -> dev_get_hwtstamp_phylib() -> vlan_hwtstamp_get() -> generic_hwtstamp_get_lower() -> generic_hwtstamp_ioctl_lower()results in generic_hwtstamp_ioctl_lower() being called withkernel_cfg->ifr as NULL.The generic_hwtstamp_ioctl_lower() function does not expecta NULL ifr and dereferences it, leading to a system crash.Fix this by adding a NULL check for kernel_cfg->ifr ingeneric_hwtstamp_ioctl_lower(). If ifr is NULL, return -EINVAL.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:PCI: endpoint: Avoid creating sub-groups asynchronouslyThe asynchronous creation of sub-groups by a delayed work could lead to aNULL pointer dereference when the driver directory is removed before thework completes.The crash can be easily reproduced with the following commands: # cd /sys/kernel/config/pci_ep/functions/pci_epf_test # for i in {1..20}; do mkdir test && rmdir test; done BUG: kernel NULL pointer dereference, address: 0000000000000088 ... Call Trace: configfs_register_group+0x3d/0x190 pci_epf_cfs_work+0x41/0x110 process_one_work+0x18f/0x350 worker_thread+0x25a/0x3a0Fix this issue by using configfs_add_default_group() API which does nothave the deadlock problem as configfs_register_group() and does not requirethe delayed work handler.[mani: slightly reworded the description and added stable list]
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: A flaw was found in QEMU. A specially crafted VMDK image could trigger an out-of-bounds read vulnerability, potentially leading to a 12-byte leak of sensitive information or a denial of service condition (DoS).
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- qemu-img > 0-0 (version in image is 9.2.4-150700.3.17.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:can: gs_usb: gs_usb_receive_bulk_callback(): fix URB memory leakIn gs_can_open(), the URBs for USB-in transfers are allocated, added to theparent->rx_submitted anchor and submitted. In the complete callbackgs_usb_receive_bulk_callback(), the URB is processed and resubmitted. Ings_can_close() the URBs are freed by callingusb_kill_anchored_urbs(parent->rx_submitted).However, this does not take into account that the USB framework unanchorsthe URB before the complete function is called. This means that once anin-URB has been completed, it is no longer anchored and is ultimately notreleased in gs_can_close().Fix the memory leak by anchoring the URB in thegs_usb_receive_bulk_callback() to the parent->rx_submitted anchor.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:scsi: target: Fix recursive locking in __configfs_open_file()In flush_write_buffer, &p->frag_sem is acquired and then the loaded storefunction is called, which, here, is target_core_item_dbroot_store(). Thisfunction called filp_open(), following which these functions were called(in reverse order), according to the call trace: down_read __configfs_open_file do_dentry_open vfs_open do_open path_openat do_filp_open file_open_name filp_open target_core_item_dbroot_store flush_write_buffer configfs_write_itertarget_core_item_dbroot_store() tries to validate the new file path bytrying to open the file path provided to it; however, in this case, the bugreport shows:db_root: not a directory: /sys/kernel/config/target/dbrootindicating that the same configfs file was tried to be opened, on which itis currently working on. Thus, it is trying to acquire frag_sem semaphoreof the same file of which it already holds the semaphore obtained inflush_write_buffer(), leading to acquiring the semaphore in a nested mannerand a possibility of recursive locking.Fix this by modifying target_core_item_dbroot_store() to use kern_path()instead of filp_open() to avoid opening the file using filesystem-specificfunction __configfs_open_file(), and further modifying it to make this fixcompatible.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default < 6.4.0-150700.53.37.1 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:net: ipv6: fix panic when IPv4 route references loopback IPv6 nexthopWhen a standalone IPv6 nexthop object is created with a loopback device(e.g., "ip -6 nexthop add id 100 dev lo"), fib6_nh_init() misclassifiesit as a reject route. This is because nexthop objects have no destinationprefix (fc_dst=::), causing fib6_is_reject() to match any loopbacknexthop. The reject path skips fib_nh_common_init(), leavingnhc_pcpu_rth_output unallocated. If an IPv4 route later references thisnexthop, __mkroute_output() dereferences NULL nhc_pcpu_rth_output andpanics.Simplify the check in fib6_nh_init() to only match explicit rejectroutes (RTF_REJECT) instead of using fib6_is_reject(). The loopbackpromotion heuristic in fib6_is_reject() is handled separately byip6_route_info_create_nh(). After this change, the three cases behaveas follows:1. Explicit reject route ("ip -6 route add unreachable 2001:db8::/64"): RTF_REJECT is set, enters reject path, skips fib_nh_common_init(). No behavior change.2. Implicit loopback reject route ("ip -6 route add 2001:db8::/32 dev lo"): RTF_REJECT is not set, takes normal path, fib_nh_common_init() is called. ip6_route_info_create_nh() still promotes it to reject afterward. nhc_pcpu_rth_output is allocated but unused, which is harmless.3. Standalone nexthop object ("ip -6 nexthop add id 100 dev lo"): RTF_REJECT is not set, takes normal path, fib_nh_common_init() is called. nhc_pcpu_rth_output is properly allocated, fixing the crash when IPv4 routes reference this nexthop.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:bpf/bonding: reject vlan+srcmac xmit_hash_policy change when XDP is loadedbond_option_mode_set() already rejects mode changes that would make aloaded XDP program incompatible via bond_xdp_check(). However,bond_option_xmit_hash_policy_set() has no such guard.For 802.3ad and balance-xor modes, bond_xdp_check() returns false whenxmit_hash_policy is vlan+srcmac, because the 802.1q payload is usuallyabsent due to hardware offload. This means a user can:1. Attach a native XDP program to a bond in 802.3ad/balance-xor mode with a compatible xmit_hash_policy (e.g. layer2+3).2. Change xmit_hash_policy to vlan+srcmac while XDP remains loaded.This leaves bond->xdp_prog set but bond_xdp_check() now returning falsefor the same device. When the bond is later destroyed, dev_xdp_uninstall()calls bond_xdp_set(dev, NULL, NULL) to remove the program, which hitsthe bond_xdp_check() guard and returns -EOPNOTSUPP, triggering:WARN_ON(dev_xdp_install(dev, mode, bpf_op, NULL, 0, NULL))Fix this by rejecting xmit_hash_policy changes to vlan+srcmac when anXDP program is loaded on a bond in 802.3ad or balance-xor mode.commit 39a0876d595b ("net, bonding: Disallow vlan+srcmac with XDP")introduced bond_xdp_check() which returns false for 802.3ad/balance-xormodes when xmit_hash_policy is vlan+srcmac. The check was wired intobond_xdp_set() to reject XDP attachment with an incompatible policy, butthe symmetric path -- preventing xmit_hash_policy from being changed to anincompatible value after XDP is already loaded -- was left unguarded inbond_option_xmit_hash_policy_set().Note:commit 094ee6017ea0 ("bonding: check xdp prog when set bond mode")later added a similar guard to bond_option_mode_set(), butbond_option_xmit_hash_policy_set() remained unprotected.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:nfnetlink_osf: validate individual option lengths in fingerprintsnfnl_osf_add_callback() validates opt_num bounds and stringNUL-termination but does not check individual option length fields.A zero-length option causes nf_osf_match_one() to enter the optionmatching loop even when foptsize sums to zero, which matches packetswith no TCP options where ctx->optp is NULL: Oops: general protection fault KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] RIP: 0010:nf_osf_match_one (net/netfilter/nfnetlink_osf.c:98) Call Trace: nf_osf_match (net/netfilter/nfnetlink_osf.c:227) xt_osf_match_packet (net/netfilter/xt_osf.c:32) ipt_do_table (net/ipv4/netfilter/ip_tables.c:293) nf_hook_slow (net/netfilter/core.c:623) ip_local_deliver (net/ipv4/ip_input.c:262) ip_rcv (net/ipv4/ip_input.c:573)Additionally, an MSS option (kind=2) with length < 4 causesout-of-bounds reads when nf_osf_match_one() unconditionally accessesoptp[2] and optp[3] for MSS value extraction. While RFC 9293section 3.2 specifies that the MSS option is always exactly 4bytes (Kind=2, Length=4), the check uses "< 4" rather than"!= 4" because lengths greater than 4 do not cause memorysafety issues -- the buffer is guaranteed to be at leastfoptsize bytes by the ctx->optsize == foptsize check.Reject fingerprints where any option has zero length, or where an MSSoption has length less than 4, at add time rather than trusting thesevalues in the packet matching hot path.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:netfilter: conntrack: add missing netlink policy validationsHyunwoo Kim reports out-of-bounds access in sctp and ctnetlink.These attributes are used by the kernel without any validation.Extend the netlink policies accordingly.Quoting the reporter: nlattr_to_sctp() assigns the user-supplied CTA_PROTOINFO_SCTP_STATE value directly to ct->proto.sctp.state without checking that it is within the valid range. [..] and: ... with exp->dir = 100, the access at ct->master->tuplehash[100] reads 5600 bytes past the start of a 320-byte nf_conn object, causing a slab-out-of-bounds read confirmed by UBSAN.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:ipv6: avoid overflows in ip6_datagram_send_ctl()Yiming Qian reported : I believe I found a locally triggerable kernel bug in the IPv6 sendmsg ancillary-data path that can panic the kernel via `skb_under_panic()` (local DoS). The core issue is a mismatch between: - a 16-bit length accumulator (`struct ipv6_txoptions::opt_flen`, type `__u16`) and - a pointer to the *last* provided destination-options header (`opt->dst1opt`) when multiple `IPV6_DSTOPTS` control messages (cmsgs) are provided. - `include/net/ipv6.h`: - `struct ipv6_txoptions::opt_flen` is `__u16` (wrap possible). (lines 291-307, especially 298) - `net/ipv6/datagram.c:ip6_datagram_send_ctl()`: - Accepts repeated `IPV6_DSTOPTS` and accumulates into `opt_flen` without rejecting duplicates. (lines 909-933) - `net/ipv6/ip6_output.c:__ip6_append_data()`: - Uses `opt->opt_flen + opt->opt_nflen` to compute header sizes/headroom decisions. (lines 1448-1466, especially 1463-1465) - `net/ipv6/ip6_output.c:__ip6_make_skb()`: - Calls `ipv6_push_frag_opts()` if `opt->opt_flen` is non-zero. (lines 1930-1934) - `net/ipv6/exthdrs.c:ipv6_push_frag_opts()` / `ipv6_push_exthdr()`: - Push size comes from `ipv6_optlen(opt->dst1opt)` (based on the pointed-to header). (lines 1179-1185 and 1206-1211) 1. `opt_flen` is a 16-bit accumulator: - `include/net/ipv6.h:298` defines `__u16 opt_flen; /* after fragment hdr */`. 2. `ip6_datagram_send_ctl()` accepts *repeated* `IPV6_DSTOPTS` cmsgs and increments `opt_flen` each time: - In `net/ipv6/datagram.c:909-933`, for `IPV6_DSTOPTS`: - It computes `len = ((hdr->hdrlen + 1) << 3);` - It checks `CAP_NET_RAW` using `ns_capable(net->user_ns, CAP_NET_RAW)`. (line 922) - Then it does: - `opt->opt_flen += len;` (line 927) - `opt->dst1opt = hdr;` (line 928) There is no duplicate rejection here (unlike the legacy `IPV6_2292DSTOPTS` path which rejects duplicates at `net/ipv6/datagram.c:901-904`). If enough large `IPV6_DSTOPTS` cmsgs are provided, `opt_flen` wraps while `dst1opt` still points to a large (2048-byte) destination-options header. In the attached PoC (`poc.c`): - 32 cmsgs with `hdrlen=255` => `len = (255+1)*8 = 2048` - 1 cmsg with `hdrlen=0` => `len = 8` - Total increment: `32*2048 + 8 = 65544`, so `(__u16)opt_flen == 8` - The last cmsg is 2048 bytes, so `dst1opt` points to a 2048-byte header. 3. The transmit path sizes headers using the wrapped `opt_flen`:- In `net/ipv6/ip6_output.c:1463-1465`: - `headersize = sizeof(struct ipv6hdr) + (opt ? opt->opt_flen + opt->opt_nflen : 0) + ...;` With wrapped `opt_flen`, `headersize`/headroom decisions underestimate what will be pushed later. 4. When building the final skb, the actual push length comes from `dst1opt` and is not limited by wrapped `opt_flen`: - In `net/ipv6/ip6_output.c:1930-1934`: - `if (opt->opt_flen) proto = ipv6_push_frag_opts(skb, opt, proto);` - In `net/ipv6/exthdrs.c:1206-1211`, `ipv6_push_frag_opts()` pushes `dst1opt` via `ipv6_push_exthdr()`. - In `net/ipv6/exthdrs.c:1179-1184`, `ipv6_push_exthdr()` does: - `skb_push(skb, ipv6_optlen(opt));` - `memcpy(h, opt, ipv6_optlen(opt));` With insufficient headroom, `skb_push()` underflows and triggers `skb_under_panic()` -> `BUG()`: - `net/core/skbuff.c:2669-2675` (`skb_push()` calls `skb_under_panic()`) - `net/core/skbuff.c:207-214` (`skb_panic()` ends in `BUG()`) - The `IPV6_DSTOPTS` cmsg path requires `CAP_NET_RAW` in the target netns user namespace (`ns_capable(net->user_ns, CAP_NET_RAW)`). - Root (or any task with `CAP_NET_RAW`) can trigger this without user namespaces. - An unprivileged `uid=1000` user can trigger this if unprivileged user namespaces are enabled and it can create a userns+netns to obtain namespaced `CAP_NET_RAW` (the attached PoC does this). - Local denial of service: kernel BUG/panic (system crash). ----truncated---
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:scsi: ibmvfc: Fix OOB access in ibmvfc_discover_targets_done()A malicious or compromised VIO server can return a num_written value in thediscover targets MAD response that exceeds max_targets. This value isstored directly in vhost->num_targets without validation, and is then usedas the loop bound in ibmvfc_alloc_targets() to index into disc_buf[], whichis only allocated for max_targets entries. Indices at or beyond max_targetsaccess kernel memory outside the DMA-coherent allocation. Theout-of-bounds data is subsequently embedded in Implicit Logout and PLOGIMADs that are sent back to the VIO server, leaking kernel memory.Fix by clamping num_written to max_targets before storing it.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:net: macb: use the current queue number for statsThere's a potential mismatch between the memory reserved for statisticsand the amount of memory written.gem_get_sset_count() correctly computes the number of stats based on theactive queues, whereas gem_get_ethtool_stats() indiscriminately copiesdata using the maximum number of queues, and in the case the number ofactive queues is less than MACB_MAX_QUEUES, this results in a OOB writeas observed in the KASAN splat.==================================================================BUG: KASAN: vmalloc-out-of-bounds in gem_get_ethtool_stats+0x54/0x78 [macb]Write of size 760 at addr ffff80008080b000 by task ethtool/1027CPU: [...]Tainted: [E]=UNSIGNED_MODULEHardware name: raspberrypi rpi/rpi, BIOS 2025.10 10/01/2025Call trace: show_stack+0x20/0x38 (C) dump_stack_lvl+0x80/0xf8 print_report+0x384/0x5e0 kasan_report+0xa0/0xf0 kasan_check_range+0xe8/0x190 __asan_memcpy+0x54/0x98 gem_get_ethtool_stats+0x54/0x78 [macb 926c13f3af83b0c6fe64badb21ec87d5e93fcf65] dev_ethtool+0x1220/0x38c0 dev_ioctl+0x4ac/0xca8 sock_do_ioctl+0x170/0x1d8 sock_ioctl+0x484/0x5d8 __arm64_sys_ioctl+0x12c/0x1b8 invoke_syscall+0xd4/0x258 el0_svc_common.constprop.0+0xb4/0x240 do_el0_svc+0x48/0x68 el0_svc+0x40/0xf8 el0t_64_sync_handler+0xa0/0xe8 el0t_64_sync+0x1b0/0x1b8The buggy address belongs to a 1-page vmalloc region starting at 0xffff80008080b000 allocated at dev_ethtool+0x11f0/0x38c0The buggy address belongs to the physical page:page: refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff00000a333000 pfn:0xa333flags: 0x7fffc000000000(node=0|zone=0|lastcpupid=0x1ffff)raw: 007fffc000000000 0000000000000000 dead000000000122 0000000000000000raw: ffff00000a333000 0000000000000000 00000001ffffffff 0000000000000000page dumped because: kasan: bad access detectedMemory state around the buggy address: ffff80008080b080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff80008080b100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00>ffff80008080b180: 00 00 00 00 00 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ^ ffff80008080b200: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ffff80008080b280: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8==================================================================Fix it by making sure the copied size only considers the active number ofqueues.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:af_key: validate families in pfkey_send_migrate()syzbot was able to trigger a crash in skb_put() [1]Issue is that pfkey_send_migrate() does not check old/new families,and that set_ipsecrequest() @family argument was truncated,thus possibly overfilling the skb.Validate families early, do not wait set_ipsecrequest().[1]skbuff: skb_over_panic: text:ffffffff8a752120 len:392 put:16 head:ffff88802a4ad040 data:ffff88802a4ad040 tail:0x188 end:0x180 dev: kernel BUG at net/core/skbuff.c:214 !Call Trace: skb_over_panic net/core/skbuff.c:219 [inline] skb_put+0x159/0x210 net/core/skbuff.c:2655 skb_put_zero include/linux/skbuff.h:2788 [inline] set_ipsecrequest net/key/af_key.c:3532 [inline] pfkey_send_migrate+0x1270/0x2e50 net/key/af_key.c:3636 km_migrate+0x155/0x260 net/xfrm/xfrm_state.c:2848 xfrm_migrate+0x2140/0x2450 net/xfrm/xfrm_policy.c:4705 xfrm_do_migrate+0x8ff/0xaa0 net/xfrm/xfrm_user.c:3150
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:module: Fix kernel panic when a symbol st_shndx is out of boundsThe module loader doesn't check for bounds of the ELF section index insimplify_symbols(): for (i = 1; i < symsec->sh_size / sizeof(Elf_Sym); i++) { const char *name = info->strtab + sym[i].st_name; switch (sym[i].st_shndx) { case SHN_COMMON: [...] default: /* Divert to percpu allocation if a percpu var. */ if (sym[i].st_shndx == info->index.pcpu) secbase = (unsigned long)mod_percpu(mod); else /** HERE --> **/ secbase = info->sechdrs[sym[i].st_shndx].sh_addr; sym[i].st_value += secbase; break; } }A symbol with an out-of-bounds st_shndx value, for example 0xffff(known as SHN_XINDEX or SHN_HIRESERVE), may cause a kernel panic: BUG: unable to handle page fault for address: ... RIP: 0010:simplify_symbols+0x2b2/0x480 ... Kernel panic - not syncing: Fatal exceptionThis can happen when module ELF is legitimately using SHN_XINDEX orwhen it is corrupted.Add a bounds check in simplify_symbols() to validate that st_shndx iswithin the valid range before using it.This issue was discovered due to a bug in llvm-objcopy, see relevantdiscussion for details [1].[1] https://lore.kernel.org/linux-modules/20251224005752.201911-1-ihor.solodrai@linux.dev/
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:seg6: separate dst_cache for input and output paths in seg6 lwtunnelThe seg6 lwtunnel uses a single dst_cache per encap route, sharedbetween seg6_input_core() and seg6_output_core(). These two pathscan perform the post-encap SID lookup in different routing contexts(e.g., ip rules matching on the ingress interface, or VRF tableseparation). Whichever path runs first populates the cache, and theother reuses it blindly, bypassing its own lookup.Fix this by splitting the cache into cache_input and cache_output,so each path maintains its own cached dst independently.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:netfilter: xt_multiport: validate range encoding in checkentryports_match_v1() treats any non-zero pflags entry as the start of aport range and unconditionally consumes the next ports[] element asthe range end.The checkentry path currently validates protocol, flags and count, butit does not validate the range encoding itself. As a result, malformedrules can mark the last slot as a range start or place two range startsback to back, leaving ports_match_v1() to step past the last validports[] element while interpreting the rule.Reject malformed multiport v1 rules in checkentry by validating thateach range start has a following element and that the following elementis not itself marked as another range start.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:EDAC/mc: Fix error path ordering in edac_mc_alloc()When the mci->pvt_info allocation in edac_mc_alloc() fails, the error pathwill call put_device() which will end up calling the device's releasefunction.However, the init ordering is wrong such that device_initialize() happens*after* the failed allocation and thus the device itself and the releasefunction pointer are not initialized yet when they're called: MCE: In-kernel MCE decoding enabled. ------------[ cut here ]------------ kobject: '(null)': is not initialized, yet kobject_put() is being called. WARNING: lib/kobject.c:734 at kobject_put, CPU#22: systemd-udevd CPU: 22 UID: 0 PID: 538 Comm: systemd-udevd Not tainted 7.0.0-rc1+ #2 PREEMPT(full) RIP: 0010:kobject_put Call Trace: edac_mc_alloc+0xbe/0xe0 [edac_core] amd64_edac_init+0x7a4/0xff0 [amd64_edac] ? __pfx_amd64_edac_init+0x10/0x10 [amd64_edac] do_one_initcall ...Reorder the calling sequence so that the device is initialized and thus therelease function pointer is properly set before it can be used.This was found by Claude while reviewing another EDAC patch.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In sshd in OpenSSH before 10.0, the DisableForwarding directive does not adhere to the documentation stating that it disables X11 and agent forwarding.
Packages affected:
- sle-module-desktop-applications-release == 15.7 (version in image is 15.7-150700.28.1).
- openssh > 0-0 (version in image is 9.6p1-150600.6.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:dpaa2-switch: add bounds check for if_id in IRQ handlerThe IRQ handler extracts if_id from the upper 16 bits of the hardwarestatus register and uses it to index into ethsw->ports[] withoutvalidation. Since if_id can be any 16-bit value (0-65535) but the portsarray is only allocated with sw_attr.num_ifs elements, this can lead toan out-of-bounds read potentially.Add a bounds check before accessing the array, consistent with theexisting validation in dpaa2_switch_rx().
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:dpaa2-switch: prevent ZERO_SIZE_PTR dereference when num_ifs is zeroThe driver allocates arrays for ports, FDBs, and filter blocks usingkcalloc() with ethsw->sw_attr.num_ifs as the element count. When thedevice reports zero interfaces (either due to hardware configurationor firmware issues), kcalloc(0, ...) returns ZERO_SIZE_PTR (0x10)instead of NULL.Later in dpaa2_switch_probe(), the NAPI initialization unconditionallyaccesses ethsw->ports[0]->netdev, which attempts to dereferenceZERO_SIZE_PTR (address 0x10), resulting in a kernel panic.Add a check to ensure num_ifs is greater than zero after retrievingdevice attributes. This prevents the zero-sized allocations andsubsequent invalid pointer dereference.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: go-git is a highly extensible git implementation library written in pure Go. Prior to 5.16.5, a vulnerability was discovered in go-git whereby data integrity values for .pack and .idx files were not properly verified. This resulted in go-git potentially consuming corrupted files, which would likely result in unexpected errors such as object not found. For context, clients fetch packfiles from upstream Git servers. Those files contain a checksum of their contents, so that clients can perform integrity checks before consuming it. The pack indexes (.idx) are generated locally by go-git, or the git cli, when new .pack files are received and processed. The integrity checks for both files were not being verified correctly. This vulnerability is fixed in 5.16.5.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- amazon-ssm-agent > 0-0 (version in image is 3.3.1611.0-150000.5.26.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:bridge: br_nd_send: linearize skb before parsing ND optionsbr_nd_send() parses neighbour discovery options from ns->opt[] andassumes that these options are in the linear part of request.Its callers only guarantee that the ICMPv6 header and target addressare available, so the option area can still be non-linear. Parsingns->opt[] in that case can access data past the linear buffer.Linearize request before option parsing and derive ns from the linearnetwork header.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: Bluetooth LE and BR/EDR Secure Connections pairing and Secure Simple Pairing using the Passkey entry protocol in Bluetooth Core Specifications 2.1 through 5.3 may permit an unauthenticated man-in-the-middle attacker to identify the Passkey used during pairing by reflection of a crafted public key with the same X coordinate as the offered public key and by reflection of the authentication evidence of the initiating device, potentially permitting this attacker to complete authenticated pairing with the responding device using the correct Passkey for the pairing session. This is a related issue to CVE-2020-26558.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: OpenSSH before 10.3 mishandles the authorized_keys principals option in uncommon scenarios involving a principals list in conjunction with a Certificate Authority that makes certain use of comma characters.
Packages affected:
- sle-module-desktop-applications-release == 15.7 (version in image is 15.7-150700.28.1).
- openssh > 0-0 (version in image is 9.6p1-150600.6.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:PCI: dwc: ep: Flush MSI-X write before unmapping its ATU entryEndpoint drivers use dw_pcie_ep_raise_msix_irq() to raise an MSI-Xinterrupt to the host using a writel(), which generates a PCI posted writetransaction. There's no completion for posted writes, so the writel() mayreturn before the PCI write completes. dw_pcie_ep_raise_msix_irq() alsounmaps the outbound ATU entry used for the PCI write, so the write raceswith the unmap.If the PCI write loses the race with the ATU unmap, the write may corrupthost memory or cause IOMMU errors, e.g., these when running fio with alarger queue depth against nvmet-pci-epf: arm-smmu-v3 fc900000.iommu: 0x0000010000000010 arm-smmu-v3 fc900000.iommu: 0x0000020000000000 arm-smmu-v3 fc900000.iommu: 0x000000090000f040 arm-smmu-v3 fc900000.iommu: 0x0000000000000000 arm-smmu-v3 fc900000.iommu: event: F_TRANSLATION client: 0000:01:00.0 sid: 0x100 ssid: 0x0 iova: 0x90000f040 ipa: 0x0 arm-smmu-v3 fc900000.iommu: unpriv data write s1 "Input address caused fault" stag: 0x0Flush the write by performing a readl() of the same address to ensure thatthe write has reached the destination before the ATU entry is unmapped.The same problem was solved for dw_pcie_ep_raise_msi_irq() in commit8719c64e76bf ("PCI: dwc: ep: Cache MSI outbound iATU mapping"), but thereit was solved by dedicating an outbound iATU only for MSI. We can't do thesame for MSI-X because each vector can have a different msg_addr and themsg_addr may be changed while the vector is masked.[bhelgaas: commit log]
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default < 6.4.0-150700.53.37.1 (version in image is 6.4.0-150700.53.34.1).
-
Description: Vim is an open source, command line text editor. Prior to 9.2.0280, a path traversal bypass in Vim's zip.vim plugin allows overwriting of arbitrary files when opening specially crafted zip archives, circumventing the previous fix for CVE-2025-53906. This vulnerability is fixed in 9.2.0280.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- vim > 0-0 (version in image is 9.2.0280-150500.20.46.1).
-
Description: In libexpat through 2.7.3, a crafted file with an approximate size of 2 MiB can lead to dozens of seconds of processing time.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- libexpat1 > 0-0 (version in image is 2.7.1-150700.3.12.1).
-
Description: http.cookies.Morsel.js_output() returns an inline inside the generated script element. Mitigation base64-encodes the cookie value to disallow escaping using cookie value.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- python3 > 0-0 (version in image is 3.6.15-150300.10.109.1).
-
Description: Unknown.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- curl > 0-0 (version in image is 8.14.1-150700.7.14.1).
-
Description: Unknown.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- curl > 0-0 (version in image is 8.14.1-150700.7.14.1).
-
Description: Unknown.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- curl > 0-0 (version in image is 8.14.1-150700.7.14.1).
-
Description: In OpenSSH before 10.3, command execution can occur via shell metacharacters in a username within a command line. This requires a scenario where the username on the command line is untrusted, and also requires a non-default configurations of % in ssh_config.
Packages affected:
- sle-module-desktop-applications-release == 15.7 (version in image is 15.7-150700.28.1).
- openssh > 0-0 (version in image is 9.6p1-150600.6.34.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:mptcp: pm: in-kernel: always mark signal+subflow endp as usedSyzkaller managed to find a combination of actions that was generatingthis warning: msk->pm.local_addr_used == 0 WARNING: net/mptcp/pm_kernel.c:1071 at __mark_subflow_endp_available net/mptcp/pm_kernel.c:1071 [inline], CPU#1: syz.2.17/961 WARNING: net/mptcp/pm_kernel.c:1071 at mptcp_nl_remove_subflow_and_signal_addr net/mptcp/pm_kernel.c:1103 [inline], CPU#1: syz.2.17/961 WARNING: net/mptcp/pm_kernel.c:1071 at mptcp_pm_nl_del_addr_doit+0x81d/0x8f0 net/mptcp/pm_kernel.c:1210, CPU#1: syz.2.17/961 Modules linked in: CPU: 1 UID: 0 PID: 961 Comm: syz.2.17 Not tainted 6.19.0-08368-gfafda3b4b06b #22 PREEMPT(full) Hardware name: QEMU Ubuntu 25.10 PC v2 (i440FX + PIIX, + 10.1 machine, 1996), BIOS 1.17.0-debian-1.17.0-1build1 04/01/2014 RIP: 0010:__mark_subflow_endp_available net/mptcp/pm_kernel.c:1071 [inline] RIP: 0010:mptcp_nl_remove_subflow_and_signal_addr net/mptcp/pm_kernel.c:1103 [inline] RIP: 0010:mptcp_pm_nl_del_addr_doit+0x81d/0x8f0 net/mptcp/pm_kernel.c:1210 Code: 89 c5 e8 46 30 6f fe e9 21 fd ff ff 49 83 ed 80 e8 38 30 6f fe 4c 89 ef be 03 00 00 00 e8 db 49 df fe eb ac e8 24 30 6f fe 90 <0f> 0b 90 e9 1d ff ff ff e8 16 30 6f fe eb 05 e8 0f 30 6f fe e8 9a RSP: 0018:ffffc90001663880 EFLAGS: 00010293 RAX: ffffffff82de1a6c RBX: 0000000000000000 RCX: ffff88800722b500 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff8880158b22d0 R08: 0000000000010425 R09: ffffffffffffffff R10: ffffffff82de18ba R11: 0000000000000000 R12: ffff88800641a640 R13: ffff8880158b1880 R14: ffff88801ec3c900 R15: ffff88800641a650 FS: 00005555722c3500(0000) GS:ffff8880f909d000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f66346e0f60 CR3: 000000001607c000 CR4: 0000000000350ef0 Call Trace: genl_family_rcv_msg_doit+0x117/0x180 net/netlink/genetlink.c:1115 genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline] genl_rcv_msg+0x3a8/0x3f0 net/netlink/genetlink.c:1210 netlink_rcv_skb+0x16d/0x240 net/netlink/af_netlink.c:2550 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x3e9/0x4c0 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x4aa/0x5b0 net/netlink/af_netlink.c:1894 sock_sendmsg_nosec net/socket.c:727 [inline] __sock_sendmsg+0xc9/0xf0 net/socket.c:742 ____sys_sendmsg+0x272/0x3b0 net/socket.c:2592 ___sys_sendmsg+0x2de/0x320 net/socket.c:2646 __sys_sendmsg net/socket.c:2678 [inline] __do_sys_sendmsg net/socket.c:2683 [inline] __se_sys_sendmsg net/socket.c:2681 [inline] __x64_sys_sendmsg+0x110/0x1a0 net/socket.c:2681 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x143/0x440 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f66346f826d Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffc83d8bdc8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f6634985fa0 RCX: 00007f66346f826d RDX: 00000000040000b0 RSI: 0000200000000740 RDI: 0000000000000007 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f6634985fa8 R13: 00007f6634985fac R14: 0000000000000000 R15: 0000000000001770 The actions that caused that seem to be: - Set the MPTCP subflows limit to 0 - Create an MPTCP endpoint with both the 'signal' and 'subflow' flags - Create a new MPTCP connection from a different address: an ADD_ADDR linked to the MPTCP endpoint will be sent ('signal' flag), but no subflows is initiated ('subflow' flag) - Remove the MPTCP endpoint---truncated---
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: pip handles concatenated tar and ZIP files as ZIP files regardless of filename or whether a file is both a tar and ZIP file. This behavior could result in confusing installation behavior, such as installing "incorrect" files according to the filename of the archive. New behavior only proceeds with installation if the file identifies uniquely as a ZIP or tar archive, not as both.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- python3 > 0-0 (version in image is 3.6.15-150300.10.109.1).
-
Description: A security flaw has been discovered in GNU Binutils 2.45. Impacted is the function tg_tag_type of the file prdbg.c. Performing a manipulation results in unchecked return value. The attack needs to be approached locally. The exploit has been released to the public and may be used for attacks.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- binutils > 0-0 (version in image is 2.45-150100.7.57.1).
-
Description: A weakness has been identified in GNU Binutils 2.45. The affected element is the function vfinfo of the file ldmisc.c. Executing a manipulation can lead to out-of-bounds read. The attack can only be executed locally. The exploit has been made available to the public and could be used for attacks. This patch is called 16357. It is best practice to apply a patch to resolve this issue.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- binutils > 0-0 (version in image is 2.45-150100.7.57.1).
-
Description: In the Linux kernel, the following vulnerability has been resolved:efivarfs: Fix memory leak of efivarfs_fs_info in fs_context error pathsWhen processing mount options, efivarfs allocates efivarfs_fs_info (sfi)early in fs_context initialization. However, sfi is associated with thesuperblock and typically freed when the superblock is destroyed. If thefs_context is released (final put) before fill_super is called-such ason error paths or during reconfiguration-the sfi structure would leak,as ownership never transfers to the superblock.Implement the .free callback in efivarfs_context_ops to ensure anyallocated sfi is properly freed if the fs_context is torn down beforefill_super, preventing this memory leak.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
-
Description: Binutils objdump contains a denial-of-service vulnerability when processing a crafted binary with malformed DWARF debug information. A logic error in the handling of DWARF compilation units can result in an invalid offset_size value being used inside byte_get_little_endian, leading to an abort (SIGABRT). The issue was observed in binutils 2.44. A local attacker can trigger the crash by supplying a malicious input file.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- binutils > 0-0 (version in image is 2.45-150100.7.57.1).
-
Description: GNU Binutils thru 2.46 readelf contains a null pointer dereference vulnerability when processing a crafted ELF binary with malformed header fields. During relocation processing, an invalid or null section pointer may be passed into display_relocations(), resulting in a segmentation fault (SIGSEGV) and abrupt termination. No evidence of memory corruption beyond the null pointer dereference, nor any possibility of code execution, was observed.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- binutils > 0-0 (version in image is 2.45-150100.7.57.1).
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Description: GNU Binutils thru 2.46 readelf contains a vulnerability that leads to an abort (SIGABRT) when processing a crafted ELF binary with malformed DWARF abbrev or debug information. Due to incomplete state cleanup in process_debug_info(), an invalid debug_info_p state may propagate into DWARF attribute parsing routines. When certain malformed attributes result in an unexpected data length of zero, byte_get_little_endian() triggers a fatal abort. No evidence of memory corruption or code execution was observed; the impact is limited to denial of service.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- binutils > 0-0 (version in image is 2.45-150100.7.57.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:netfilter: nf_tables: avoid chain re-validation if possibleHamza Mahfooz reports cpu soft lock-ups innft_chain_validate(): watchdog: BUG: soft lockup - CPU#1 stuck for 27s! [iptables-nft-re:37547][..] RIP: 0010:nft_chain_validate+0xcb/0x110 [nf_tables][..] nft_immediate_validate+0x36/0x50 [nf_tables] nft_chain_validate+0xc9/0x110 [nf_tables] nft_immediate_validate+0x36/0x50 [nf_tables] nft_chain_validate+0xc9/0x110 [nf_tables] nft_immediate_validate+0x36/0x50 [nf_tables] nft_chain_validate+0xc9/0x110 [nf_tables] nft_immediate_validate+0x36/0x50 [nf_tables] nft_chain_validate+0xc9/0x110 [nf_tables] nft_immediate_validate+0x36/0x50 [nf_tables] nft_chain_validate+0xc9/0x110 [nf_tables] nft_immediate_validate+0x36/0x50 [nf_tables] nft_chain_validate+0xc9/0x110 [nf_tables] nft_table_validate+0x6b/0xb0 [nf_tables] nf_tables_validate+0x8b/0xa0 [nf_tables] nf_tables_commit+0x1df/0x1eb0 [nf_tables][..]Currently nf_tables will traverse the entire table (chain graph), startingfrom the entry points (base chains), exploring all possible paths(chain jumps). But there are cases where we could avoid revalidation.Consider:1 input -> j2 -> j32 input -> j2 -> j33 input -> j1 -> j2 -> j3Then the second rule does not need to revalidate j2, and, by extension j3,because this was already checked during validation of the first rule.We need to validate it only for rule 3.This is needed because chain loop detection also ensures we do not exceedthe jump stack: Just because we know that j2 is cycle free, its last jumpmight now exceed the allowed stack size. We also need to update allreachable chains with the new largest observed call depth.Care has to be taken to revalidate even if the chain depth won't be anissue: chain validation also ensures that expressions are not called frominvalid base chains. For example, the masquerade expression can only becalled from NAT postrouting base chains.Therefore we also need to keep record of the base chain context (type,hooknum) and revalidate if the chain becomes reachable from a differenthook location.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:null_blk: fix kmemleak by releasing references to fault configfs itemsWhen CONFIG_BLK_DEV_NULL_BLK_FAULT_INJECTION is enabled, the null-blkdriver sets up fault injection support by creating the timeout_inject,requeue_inject, and init_hctx_fault_inject configfs items as childrenof the top-level nullbX configfs group.However, when the nullbX device is removed, the references taken tothese fault-config configfs items are not released. As a result,kmemleak reports a memory leak, for example:unreferenced object 0xc00000021ff25c40 (size 32): comm "mkdir", pid 10665, jiffies 4322121578 hex dump (first 32 bytes): 69 6e 69 74 5f 68 63 74 78 5f 66 61 75 6c 74 5f init_hctx_fault_ 69 6e 6a 65 63 74 00 88 00 00 00 00 00 00 00 00 inject.......... backtrace (crc 1a018c86): __kmalloc_node_track_caller_noprof+0x494/0xbd8 kvasprintf+0x74/0xf4 config_item_set_name+0xf0/0x104 config_group_init_type_name+0x48/0xfc fault_config_init+0x48/0xf0 0xc0080000180559e4 configfs_mkdir+0x304/0x814 vfs_mkdir+0x49c/0x604 do_mkdirat+0x314/0x3d0 sys_mkdir+0xa0/0xd8 system_call_exception+0x1b0/0x4f0 system_call_vectored_common+0x15c/0x2ecFix this by explicitly releasing the references to the fault-configconfigfs items when dropping the reference to the top-level nullbXconfigfs group.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:net: liquidio: Initialize netdev pointer before queue setupIn setup_nic_devices(), the netdev is allocated using alloc_etherdev_mq().However, the pointer to this structure is stored in oct->props[i].netdevonly after the calls to netif_set_real_num_rx_queues() andnetif_set_real_num_tx_queues().If either of these functions fails, setup_nic_devices() returns an errorwithout freeing the allocated netdev. Since oct->props[i].netdev is stillNULL at this point, the cleanup function liquidio_destroy_nic_device()will fail to find and free the netdev, resulting in a memory leak.Fix this by initializing oct->props[i].netdev before calling the queuesetup functions. This ensures that the netdev is properly accessible forcleanup in case of errors.Compile tested only. Issue found using a prototype static analysis tooland code review.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:RDMA/irdma: Fix kernel stack leak in irdma_create_user_ah()struct irdma_create_ah_resp { // 8 bytes, no padding __u32 ah_id; // offset 0 - SET (uresp.ah_id = ah->sc_ah.ah_info.ah_idx) __u8 rsvd[4]; // offset 4 - NEVER SET <- LEAK};rsvd[4]: 4 bytes of stack memory leaked unconditionally. Only ah_id is assigned before ib_respond_udata().The reserved members of the structure were not zeroed.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:crypto: atmel-sha204a - Fix OOM ->tfm_count leakIf memory allocation fails, decrement ->tfm_count to avoid blockingfuture reads.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:netfilter: nfnetlink_log: account for netlink header sizeThis is a followup to an old bug fix: NLMSG_DONE needs to accountfor the netlink header size, not just the attribute size.This can result in a WARN splat + drop of the netlink message,but other than this there are no ill effects.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:netfilter: nf_conntrack_expect: skip expectations in other netns via procSkip expectations that do not reside in this netns.Similar to e77e6ff502ea ("netfilter: conntrack: do not dump other netns'sconntrack entries via proc").
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:net: lan966x: fix page pool leak in error pathslan966x_fdma_rx_alloc() creates a page pool but does not destroy it ifthe subsequent fdma_alloc_coherent() call fails, leaking the pool.Similarly, lan966x_fdma_init() frees the coherent DMA memory whenlan966x_fdma_tx_alloc() fails but does not destroy the page pool thatwas successfully created by lan966x_fdma_rx_alloc(), leaking it.Add the missing page_pool_destroy() calls in both error paths.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:xfrm_user: fix info leak in build_report()struct xfrm_user_report is a __u8 proto field followed by a structxfrm_selector which means there is three "empty" bytes of padding, butthe padding is never zeroed before copying to userspace. Fix that up byzeroing the structure before setting individual member variables.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: DISPUTED: The project has clarified that the documentation was incorrect, and that pkgutil.get_data() has the same security model as open(). The documentation has been updated to clarify this point. There is no vulnerability in the function if following the intended security model.pkgutil.get_data() did not validate the resource argument as documented, allowing path traversals.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- python3 > 0-0 (version in image is 3.6.15-150300.10.109.1).
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Description: OpenSSH before 10.3 can use unintended ECDSA algorithms. Listing of any ECDSA algorithm in PubkeyAcceptedAlgorithms or HostbasedAcceptedAlgorithms is misinterpreted to mean all ECDSA algorithms.
Packages affected:
- sle-module-desktop-applications-release == 15.7 (version in image is 15.7-150700.28.1).
- openssh > 0-0 (version in image is 9.6p1-150600.6.34.1).
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Description: In netstat in BusyBox through 1.37.0, local users can launch of network application with an argv[0] containing an ANSI terminal escape sequence, leading to a denial of service (terminal locked up) when netstat is used by a victim.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- net-tools > 0-0 (version in image is 2.0+git20170221.479bb4a-150000.5.13.1).
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Description: An issue was discovered in function d_discriminator in file cp-demangle.c in BinUtils 2.26 allows attackers to cause a denial of service via crafted PE file.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- binutils > 0-0 (version in image is 2.45-150100.7.57.1).
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Description: An issue was discovered in function d_abi_tags in file cp-demangle.c in BinUtils 2.26 allows attackers to cause a denial of service via crafted PE file.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- binutils > 0-0 (version in image is 2.45-150100.7.57.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:mm/kmemleak: avoid soft lockup in __kmemleak_do_cleanup()A soft lockup warning was observed on a relative small system x86-64system with 16 GB of memory when running a debug kernel with kmemleakenabled. watchdog: BUG: soft lockup - CPU#8 stuck for 33s! [kworker/8:1:134]The test system was running a workload with hot unplug happening inparallel. Then kemleak decided to disable itself due to its inability toallocate more kmemleak objects. The debug kernel has itsCONFIG_DEBUG_KMEMLEAK_MEM_POOL_SIZE set to 40,000.The soft lockup happened in kmemleak_do_cleanup() when the existingkmemleak objects were being removed and deleted one-by-one in a loop via aworkqueue. In this particular case, there are at least 40,000 objectsthat need to be processed and given the slowness of a debug kernel and thefact that a raw_spinlock has to be acquired and released in__delete_object(), it could take a while to properly handle all theseobjects.As kmemleak has been disabled in this case, the object removal anddeletion process can be further optimized as locking isn't really needed. However, it is probably not worth the effort to optimize for such an edgecase that should rarely happen. So the simple solution is to callcond_resched() at periodic interval in the iteration loop to avoid softlockup.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: An issue was discovered in function d_unqualified_name in file cp-demangle.c in BinUtils 2.26 allowing attackers to cause a denial of service via crafted PE file.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- binutils > 0-0 (version in image is 2.45-150100.7.57.1).
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Description: An issue was discovered in function d_print_comp_inner in file cp-demangle.c in BinUtils 2.26 allows attackers to cause a denial of service via crafted PE file.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- binutils > 0-0 (version in image is 2.45-150100.7.57.1).
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Description: An issue was discovered in function d_print_comp_inner in file cp-demangle.c in BinUtils 2.26 allows attackers to cause a denial of service via crafted PE file.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- binutils > 0-0 (version in image is 2.45-150100.7.57.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:nfc: nci: complete pending data exchange on device closeIn nci_close_device(), complete any pending data exchange beforeclosing. The data exchange callback (e.g.rawsock_data_exchange_complete) holds a socket reference.NIPA occasionally hits this leak:unreferenced object 0xff1100000f435000 (size 2048): comm "nci_dev", pid 3954, jiffies 4295441245 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 27 00 01 40 00 00 00 00 00 00 00 00 00 00 00 00 '..@............ backtrace (crc ec2b3c5): __kmalloc_noprof+0x4db/0x730 sk_prot_alloc.isra.0+0xe4/0x1d0 sk_alloc+0x36/0x760 rawsock_create+0xd1/0x540 nfc_sock_create+0x11f/0x280 __sock_create+0x22d/0x630 __sys_socket+0x115/0x1d0 __x64_sys_socket+0x72/0xd0 do_syscall_64+0x117/0xfc0 entry_SYSCALL_64_after_hwframe+0x4b/0x53
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: In the Linux kernel, the following vulnerability has been resolved:s390/entry: Scrub r12 register on kernel entryBefore commit f33f2d4c7c80 ("s390/bp: remove TIF_ISOLATE_BP"),all entry handlers loaded r12 with the current task pointer(lg %r12,__LC_CURRENT) for use by the BPENTER/BPEXIT macros. Thatcommit removed TIF_ISOLATE_BP, dropping both the branch predictionmacros and the r12 load, but did not add r12 to the register clearingsequence.Add the missing xgr %r12,%r12 to make the register scrub consistentacross all entry points.
Packages affected:
- sle-module-development-tools-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: OpenSSH before 10.3 omits connection multiplexing confirmation for proxy-mode multiplexing sessions.
Packages affected:
- sle-module-desktop-applications-release == 15.7 (version in image is 15.7-150700.28.1).
- openssh > 0-0 (version in image is 9.6p1-150600.6.34.1).
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Description: libexpat before 2.8.0 uses insufficient entropy, and thus hash flooding can occur via a crafted XML document.
Packages affected:
- sle-module-basesystem-release == 15.7 (version in image is 15.7-150700.28.1).
- libexpat1 > 0-0 (version in image is 2.7.1-150700.3.12.1).
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Description: Insufficient checks of the RMP on host buffer access in IOMMU may allow an attacker with privileges and a compromised hypervisor to trigger an out of bounds condition without RMP checks, resulting in a potential loss of confidential guest integrity.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: Uncaught exception in the core management mechanism for some Intel(R) Processors may allow an authenticated user to potentially enable denial of service via local access.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).
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Description: Insufficient resource pool in the core management mechanism for some Intel(R) Processors may allow an authenticated user to potentially enable denial of service via local access.
Packages affected:
- sle-module-public-cloud-release == 15.7 (version in image is 15.7-150700.28.1).
- kernel-default > 0-0 (version in image is 6.4.0-150700.53.34.1).