CVE-2026-74723

In the Linux kernel, the following vulnerability has been resolved: btrfs: lzo: reject inline extents without valid headers [BUG] For a crafted btrfs image, the following KASAN can be triggered when reading an inline lzo compressed file extent: BUG: KASAN: slab-out-of-bounds in lzo_decompress+0x57d/0x700 Read of size 4 at addr ffff888006f2e644 by task btrfs_lzo_inlin/77 Call Trace: <TASK> dump_stack_lvl+0x5b/0x70 print_report+0xd1/0x610 kasan_report+0xe0/0x110 __asan_report_load_n_noabort+0x13/0x20 lzo_decompress+0x57d/0x700 btrfs_decompress+0x140/0x1c0 uncompress_inline+0x147/0x1b0 btrfs_get_extent+0xb23/0x10a0 btrfs_do_readpage.constprop.0+0x538/0x1ac0 btrfs_readahead+0x32f/0x5f0 read_pages+0x16f/0x850 page_cache_ra_unbounded+0x296/0x490 do_page_cache_ra+0xd9/0x130 page_cache_sync_ra+0x3ee/0x6f0 filemap_get_pages+0x306/0x15c0 filemap_read+0x329/0xd00 btrfs_file_read_iter+0x1f8/0x2b0 vfs_read+0x4ef/0x720 ksys_read+0xf8/0x1d0 __x64_sys_read+0x71/0xb0 x64_sys_call+0x1ab0/0x1b70 do_syscall_64+0x61/0x470 entry_SYSCALL_64_after_hwframe+0x4b/0x53 </TASK> [CAUSE] For an inline lzo compressed file extent, there should always be one lzo header, recording the total length of the compressed data, followed by one segment header, recording the compressed lzo payload. But if a crafted inline lzo compressed file extent contains only an lzo header, without the segment header or payload, lzo_decompress() will still try to read the segment header, causing a read beyond the item boundary. Furthermore if the inline lzo compressed file extent is the first item of the leaf, it will be at the extent buffer boundary. The above out-of-boundary read will go beyond the extent buffer boundary, triggering the above KASAN report. [FIX] Validate the total length of the inlined lzo compressed file extent, to make sure there is at least one LZO header and one segment header, and a non-zero payload. [ Rework the commit message to remove slop ]

In the Linux kernel, the following vulnerability has been resolved: btrfs: lzo: reject inline extents without valid headers [BUG] For a crafted btrfs image, the following KASAN can be triggered when reading an inline lzo compressed file extent: BUG: KASAN: slab-out-of-bounds in lzo_decompress+0x57d/0x700 Read of size 4 at addr ffff888006f2e644 by task btrfs_lzo_inlin/77 Call Trace: <TASK> dump_stack_lvl+0x5b/0x70 print_report+0xd1/0x610 kasan_report+0xe0/0x110 __asan_report_load_n_noabort+0x13/0x20 lzo_decompress+0x57d/0x700 btrfs_decompress+0x140/0x1c0 uncompress_inline+0x147/0x1b0 btrfs_get_extent+0xb23/0x10a0 btrfs_do_readpage.constprop.0+0x538/0x1ac0 btrfs_readahead+0x32f/0x5f0 read_pages+0x16f/0x850 page_cache_ra_unbounded+0x296/0x490 do_page_cache_ra+0xd9/0x130 page_cache_sync_ra+0x3ee/0x6f0 filemap_get_pages+0x306/0x15c0 filemap_read+0x329/0xd00 btrfs_file_read_iter+0x1f8/0x2b0 vfs_read+0x4ef/0x720 ksys_read+0xf8/0x1d0 __x64_sys_read+0x71/0xb0 x64_sys_call+0x1ab0/0x1b70 do_syscall_64+0x61/0x470 entry_SYSCALL_64_after_hwframe+0x4b/0x53 </TASK> [CAUSE] For an inline lzo compressed file extent, there should always be one lzo header, recording the total length of the compressed data, followed by one segment header, recording the compressed lzo payload. But if a crafted inline lzo compressed file extent contains only an lzo header, without the segment header or payload, lzo_decompress() will still try to read the segment header, causing a read beyond the item boundary. Furthermore if the inline lzo compressed file extent is the first item of the leaf, it will be at the extent buffer boundary. The above out-of-boundary read will go beyond the extent buffer boundary, triggering the above KASAN report. [FIX] Validate the total length of the inlined lzo compressed file extent, to make sure there is at least one LZO header and one segment header, and a non-zero payload. [ Rework the commit message to remove slop ]

In the Linux kernel, the following vulnerability has been resolved:

btrfs: lzo: reject inline extents without valid headers

[BUG] For a crafted btrfs image, the following KASAN can be triggered when reading an inline lzo compressed file extent:

BUG: KASAN: slab-out-of-bounds in lzo_decompress+0x57d/0x700 Read of size 4 at addr ffff888006f2e644 by task btrfs_lzo_inlin/77

Call Trace: <TASK> dump_stack_lvl+0x5b/0x70 print_report+0xd1/0x610 kasan_report+0xe0/0x110 __asan_report_load_n_noabort+0x13/0x20 lzo_decompress+0x57d/0x700 btrfs_decompress+0x140/0x1c0 uncompress_inline+0x147/0x1b0 btrfs_get_extent+0xb23/0x10a0 btrfs_do_readpage.constprop.0+0x538/0x1ac0 btrfs_readahead+0x32f/0x5f0 read_pages+0x16f/0x850 page_cache_ra_unbounded+0x296/0x490 do_page_cache_ra+0xd9/0x130 page_cache_sync_ra+0x3ee/0x6f0 filemap_get_pages+0x306/0x15c0 filemap_read+0x329/0xd00 btrfs_file_read_iter+0x1f8/0x2b0 vfs_read+0x4ef/0x720 ksys_read+0xf8/0x1d0 __x64_sys_read+0x71/0xb0 x64_sys_call+0x1ab0/0x1b70 do_syscall_64+0x61/0x470 entry_SYSCALL_64_after_hwframe+0x4b/0x53 </TASK>

[CAUSE] For an inline lzo compressed file extent, there should always be one lzo header, recording the total length of the compressed data, followed by one segment header, recording the compressed lzo payload.

But if a crafted inline lzo compressed file extent contains only an lzo header, without the segment header or payload, lzo_decompress() will still try to read the segment header, causing a read beyond the item boundary.

Furthermore if the inline lzo compressed file extent is the first item of the leaf, it will be at the extent buffer boundary. The above out-of-boundary read will go beyond the extent buffer boundary, triggering the above KASAN report.

[FIX] Validate the total length of the inlined lzo compressed file extent, to make sure there is at least one LZO header and one segment header, and a non-zero payload.

[ Rework the commit message to remove slop ]

The SUSE Linux Enterprise 16.0 kernel was updated to fix various security issues:

The following security issues were fixed:

• CVE-2025-68214: timers: Fix NULL function pointer race in timer_shutdown_sync() (bsc#1255225).
• CVE-2025-68358: btrfs: fix racy bitfield write in btrfs_clear_space_info_full() (bsc#1255531).
• CVE-2025-68780: sched/deadline: only set free_cpus for online runqueues (bsc#1256671).
• CVE-2025-71075: scsi: aic94xx: fix use-after-free in device removal path (bsc#1256629).
• CVE-2026-23113: io_uring/io-wq: check IO_WQ_BIT_EXIT inside work run loop (bsc#1258278).
• CVE-2026-23306: scsi: pm8001: Fix use-after-free in pm8001_queue_command() (bsc#1260501).
• CVE-2026-23348: cxl/mem: Clarify @host for devm_cxl_add_nvdimm() (bsc#1260577).
• CVE-2026-31418: netfilter: ipset: drop logically empty buckets in mtype_del (bsc#1262073).
• CVE-2026-31530: cxl/port: Fix use after free of parent_port in cxl_detach_ep() (bsc#1262756).
• CVE-2026-31531: ipv4: nexthop: allocate skb dynamically in rtm_get_nexthop() (bsc#1263004).
• CVE-2026-43116: netfilter: ctnetlink: ensure safe access to master conntrack (bsc#1264619).
• CVE-2026-43125: dlm: validate length in dlm_search_rsb_tree (bsc#1264541).
• CVE-2026-43163: md/bitmap: fix GPF in write_page caused by resize race (bsc#1264335).
• CVE-2026-43239: smb: client: prevent races in ->query_interfaces() (bsc#1264444).
• CVE-2026-43271: md-cluster: fix NULL pointer dereference in process_metadata_update (bsc#1264587).
• CVE-2026-43299: btrfs: do not ASSERT() when the fs flips RO inside btrfs_repair_io_failure() (bsc#1264851).
• CVE-2026-43331: x86/kexec: Disable KCOV instrumentation after load_segments() (bsc#1265132).
• CVE-2026-43355: iio: light: bh1780: fix PM runtime leak on error path (bsc#1265036).
• CVE-2026-43363: x86/apic: Disable x2apic on resume if the kernel expects so (bsc#1265068).
• CVE-2026-43416: powerpc, perf: Check that current->mm is alive before getting user callchain (bsc#1265121).
• CVE-2026-43439: cgroup: fix race between task migration and iteration (bsc#1265141).
• CVE-2026-43448: nvme-pci: Fix race bug in nvme_poll_irqdisable() (bsc#1264807).
• CVE-2026-45860: netfilter: nf_conncount: increase the connection clean up limit to 64 (bsc#1266710).
• CVE-2026-45897: netfilter: nft_counter: serialize reset with spinlock (bsc#1266897).
• CVE-2026-45968: cpuidle: Skip governor when only one idle state is available (bsc#1267023).
• CVE-2026-46007: hwmon: (powerz) Avoid cacheline sharing for DMA buffer (bsc#1267586).
• CVE-2026-46070: md/raid5: validate payload size before accessing journal metadata (bsc#1267501).
• CVE-2026-46107: dm-thin: fix metadata refcount underflow (bsc#1267612).
• CVE-2026-46115: block: add pgmap check to biovec_phys_mergeable (bsc#1266874).
• CVE-2026-46133: RDMA/rxe: Reject unknown opcodes before ICRC processing (bsc#1266928).
• CVE-2026-46135: nvmet-tcp: remove redundant calls to nvmet_tcp_fatal_error() (bsc#1267373).
• CVE-2026-46195: smb: client: validate dacloffset before building DACL pointers (bsc#1266860).
• CVE-2026-46304: nvmet: avoid recursive nvmet-wq flush in nvmet_ctrl_free (bsc#1267985).
• CVE-2026-52912: netfilter: nf_queue: hold bridge skb->dev while queued (bsc#1269000).
• CVE-2026-52920: netfilter: xt_policy: fix strict mode inbound policy matching (bsc#1269013).
• CVE-2026-52928: af_unix: Reject SIOCATMARK on non-stream sockets (bsc#1269010).
• CVE-2026-52929: sctp: stream: fully roll back denied add-stream state (bsc#1269004).
• CVE-2026-52935: xfrm: espintcp: do not reuse an in-progress partial send (bsc#1268979).
• CVE-2026-52939: net/rds: fix NULL deref in rds_ib_send_cqe_handler() on masked atomic completion (bsc#1268972).
• CVE-2026-52946: fs/fcntl: fix SOFTIRQ-unsafe lock order in fasync signaling (bsc#1269113).
• CVE-2026-52977: futex: Prevent lockup in requeue-PI during signal/ timeout wakeup (bsc#1269242).
• CVE-2026-52990: fsnotify: fix inode reference leak in fsnotify_recalc_mask() (bsc#1269108). -…

The SUSE Linux Enterprise 16.0 kernel was updated to fix various security issues:

The following security issues were fixed:

• CVE-2025-68214: timers: Fix NULL function pointer race in timer_shutdown_sync() (bsc#1255225).
• CVE-2025-68358: btrfs: fix racy bitfield write in btrfs_clear_space_info_full() (bsc#1255531).
• CVE-2025-68780: sched/deadline: only set free_cpus for online runqueues (bsc#1256671).
• CVE-2025-71075: scsi: aic94xx: fix use-after-free in device removal path (bsc#1256629).
• CVE-2026-23113: io_uring/io-wq: check IO_WQ_BIT_EXIT inside work run loop (bsc#1258278).
• CVE-2026-23306: scsi: pm8001: Fix use-after-free in pm8001_queue_command() (bsc#1260501).
• CVE-2026-23348: cxl/mem: Clarify @host for devm_cxl_add_nvdimm() (bsc#1260577).
• CVE-2026-31418: netfilter: ipset: drop logically empty buckets in mtype_del (bsc#1262073).
• CVE-2026-31530: cxl/port: Fix use after free of parent_port in cxl_detach_ep() (bsc#1262756).
• CVE-2026-31531: ipv4: nexthop: allocate skb dynamically in rtm_get_nexthop() (bsc#1263004).
• CVE-2026-43116: netfilter: ctnetlink: ensure safe access to master conntrack (bsc#1264619).
• CVE-2026-43125: dlm: validate length in dlm_search_rsb_tree (bsc#1264541).
• CVE-2026-43163: md/bitmap: fix GPF in write_page caused by resize race (bsc#1264335).
• CVE-2026-43239: smb: client: prevent races in ->query_interfaces() (bsc#1264444).
• CVE-2026-43271: md-cluster: fix NULL pointer dereference in process_metadata_update (bsc#1264587).
• CVE-2026-43299: btrfs: do not ASSERT() when the fs flips RO inside btrfs_repair_io_failure() (bsc#1264851).
• CVE-2026-43331: x86/kexec: Disable KCOV instrumentation after load_segments() (bsc#1265132).
• CVE-2026-43355: iio: light: bh1780: fix PM runtime leak on error path (bsc#1265036).
• CVE-2026-43363: x86/apic: Disable x2apic on resume if the kernel expects so (bsc#1265068).
• CVE-2026-43416: powerpc, perf: Check that current->mm is alive before getting user callchain (bsc#1265121).
• CVE-2026-43439: cgroup: fix race between task migration and iteration (bsc#1265141).
• CVE-2026-43448: nvme-pci: Fix race bug in nvme_poll_irqdisable() (bsc#1264807).
• CVE-2026-45860: netfilter: nf_conncount: increase the connection clean up limit to 64 (bsc#1266710).
• CVE-2026-45897: netfilter: nft_counter: serialize reset with spinlock (bsc#1266897).
• CVE-2026-45968: cpuidle: Skip governor when only one idle state is available (bsc#1267023).
• CVE-2026-46007: hwmon: (powerz) Avoid cacheline sharing for DMA buffer (bsc#1267586).
• CVE-2026-46070: md/raid5: validate payload size before accessing journal metadata (bsc#1267501).
• CVE-2026-46107: dm-thin: fix metadata refcount underflow (bsc#1267612).
• CVE-2026-46115: block: add pgmap check to biovec_phys_mergeable (bsc#1266874).
• CVE-2026-46133: RDMA/rxe: Reject unknown opcodes before ICRC processing (bsc#1266928).
• CVE-2026-46135: nvmet-tcp: remove redundant calls to nvmet_tcp_fatal_error() (bsc#1267373).
• CVE-2026-46195: smb: client: validate dacloffset before building DACL pointers (bsc#1266860).
• CVE-2026-46304: nvmet: avoid recursive nvmet-wq flush in nvmet_ctrl_free (bsc#1267985).
• CVE-2026-52912: netfilter: nf_queue: hold bridge skb->dev while queued (bsc#1269000).
• CVE-2026-52920: netfilter: xt_policy: fix strict mode inbound policy matching (bsc#1269013).
• CVE-2026-52928: af_unix: Reject SIOCATMARK on non-stream sockets (bsc#1269010).
• CVE-2026-52929: sctp: stream: fully roll back denied add-stream state (bsc#1269004).
• CVE-2026-52935: xfrm: espintcp: do not reuse an in-progress partial send (bsc#1268979).
• CVE-2026-52939: net/rds: fix NULL deref in rds_ib_send_cqe_handler() on masked atomic completion (bsc#1268972).
• CVE-2026-52946: fs/fcntl: fix SOFTIRQ-unsafe lock order in fasync signaling (bsc#1269113).
• CVE-2026-52977: futex: Prevent lockup in requeue-PI during signal/ timeout wakeup (bsc#1269242).
• CVE-2026-52990: fsnotify: fix inode reference leak in fsnotify_recalc_mask() (bsc#1269108). -…

The SUSE Linux Enterprise 16.0 kernel was updated to fix various security issues:

The following security issues were fixed:

• CVE-2025-68214: timers: Fix NULL function pointer race in timer_shutdown_sync() (bsc#1255225).
• CVE-2025-68358: btrfs: fix racy bitfield write in btrfs_clear_space_info_full() (bsc#1255531).
• CVE-2025-68780: sched/deadline: only set free_cpus for online runqueues (bsc#1256671).
• CVE-2025-71075: scsi: aic94xx: fix use-after-free in device removal path (bsc#1256629).
• CVE-2026-23113: io_uring/io-wq: check IO_WQ_BIT_EXIT inside work run loop (bsc#1258278).
• CVE-2026-23306: scsi: pm8001: Fix use-after-free in pm8001_queue_command() (bsc#1260501).
• CVE-2026-23348: cxl/mem: Clarify @host for devm_cxl_add_nvdimm() (bsc#1260577).
• CVE-2026-31418: netfilter: ipset: drop logically empty buckets in mtype_del (bsc#1262073).
• CVE-2026-31530: cxl/port: Fix use after free of parent_port in cxl_detach_ep() (bsc#1262756).
• CVE-2026-31531: ipv4: nexthop: allocate skb dynamically in rtm_get_nexthop() (bsc#1263004).
• CVE-2026-43116: netfilter: ctnetlink: ensure safe access to master conntrack (bsc#1264619).
• CVE-2026-43125: dlm: validate length in dlm_search_rsb_tree (bsc#1264541).
• CVE-2026-43163: md/bitmap: fix GPF in write_page caused by resize race (bsc#1264335).
• CVE-2026-43239: smb: client: prevent races in ->query_interfaces() (bsc#1264444).
• CVE-2026-43271: md-cluster: fix NULL pointer dereference in process_metadata_update (bsc#1264587).
• CVE-2026-43299: btrfs: do not ASSERT() when the fs flips RO inside btrfs_repair_io_failure() (bsc#1264851).
• CVE-2026-43331: x86/kexec: Disable KCOV instrumentation after load_segments() (bsc#1265132).
• CVE-2026-43355: iio: light: bh1780: fix PM runtime leak on error path (bsc#1265036).
• CVE-2026-43363: x86/apic: Disable x2apic on resume if the kernel expects so (bsc#1265068).
• CVE-2026-43416: powerpc, perf: Check that current->mm is alive before getting user callchain (bsc#1265121).
• CVE-2026-43439: cgroup: fix race between task migration and iteration (bsc#1265141).
• CVE-2026-43448: nvme-pci: Fix race bug in nvme_poll_irqdisable() (bsc#1264807).
• CVE-2026-45860: netfilter: nf_conncount: increase the connection clean up limit to 64 (bsc#1266710).
• CVE-2026-45897: netfilter: nft_counter: serialize reset with spinlock (bsc#1266897).
• CVE-2026-45968: cpuidle: Skip governor when only one idle state is available (bsc#1267023).
• CVE-2026-46007: hwmon: (powerz) Avoid cacheline sharing for DMA buffer (bsc#1267586).
• CVE-2026-46070: md/raid5: validate payload size before accessing journal metadata (bsc#1267501).
• CVE-2026-46107: dm-thin: fix metadata refcount underflow (bsc#1267612).
• CVE-2026-46115: block: add pgmap check to biovec_phys_mergeable (bsc#1266874).
• CVE-2026-46133: RDMA/rxe: Reject unknown opcodes before ICRC processing (bsc#1266928).
• CVE-2026-46135: nvmet-tcp: remove redundant calls to nvmet_tcp_fatal_error() (bsc#1267373).
• CVE-2026-46195: smb: client: validate dacloffset before building DACL pointers (bsc#1266860).
• CVE-2026-46304: nvmet: avoid recursive nvmet-wq flush in nvmet_ctrl_free (bsc#1267985).
• CVE-2026-52912: netfilter: nf_queue: hold bridge skb->dev while queued (bsc#1269000).
• CVE-2026-52920: netfilter: xt_policy: fix strict mode inbound policy matching (bsc#1269013).
• CVE-2026-52928: af_unix: Reject SIOCATMARK on non-stream sockets (bsc#1269010).
• CVE-2026-52929: sctp: stream: fully roll back denied add-stream state (bsc#1269004).
• CVE-2026-52935: xfrm: espintcp: do not reuse an in-progress partial send (bsc#1268979).
• CVE-2026-52939: net/rds: fix NULL deref in rds_ib_send_cqe_handler() on masked atomic completion (bsc#1268972).
• CVE-2026-52946: fs/fcntl: fix SOFTIRQ-unsafe lock order in fasync signaling (bsc#1269113).
• CVE-2026-52977: futex: Prevent lockup in requeue-PI during signal/ timeout wakeup (bsc#1269242).
• CVE-2026-52990: fsnotify: fix inode reference leak in fsnotify_recalc_mask() (bsc#1269108). -…

The SUSE Linux Enterprise 16.0 kernel was updated to fix various security issues:

The following security issues were fixed:

• CVE-2025-68214: timers: Fix NULL function pointer race in timer_shutdown_sync() (bsc#1255225).
• CVE-2025-68358: btrfs: fix racy bitfield write in btrfs_clear_space_info_full() (bsc#1255531).
• CVE-2025-68780: sched/deadline: only set free_cpus for online runqueues (bsc#1256671).
• CVE-2025-71075: scsi: aic94xx: fix use-after-free in device removal path (bsc#1256629).
• CVE-2026-23113: io_uring/io-wq: check IO_WQ_BIT_EXIT inside work run loop (bsc#1258278).
• CVE-2026-23306: scsi: pm8001: Fix use-after-free in pm8001_queue_command() (bsc#1260501).
• CVE-2026-23348: cxl/mem: Clarify @host for devm_cxl_add_nvdimm() (bsc#1260577).
• CVE-2026-31418: netfilter: ipset: drop logically empty buckets in mtype_del (bsc#1262073).
• CVE-2026-31530: cxl/port: Fix use after free of parent_port in cxl_detach_ep() (bsc#1262756).
• CVE-2026-31531: ipv4: nexthop: allocate skb dynamically in rtm_get_nexthop() (bsc#1263004).
• CVE-2026-43116: netfilter: ctnetlink: ensure safe access to master conntrack (bsc#1264619).
• CVE-2026-43125: dlm: validate length in dlm_search_rsb_tree (bsc#1264541).
• CVE-2026-43163: md/bitmap: fix GPF in write_page caused by resize race (bsc#1264335).
• CVE-2026-43239: smb: client: prevent races in ->query_interfaces() (bsc#1264444).
• CVE-2026-43271: md-cluster: fix NULL pointer dereference in process_metadata_update (bsc#1264587).
• CVE-2026-43299: btrfs: do not ASSERT() when the fs flips RO inside btrfs_repair_io_failure() (bsc#1264851).
• CVE-2026-43331: x86/kexec: Disable KCOV instrumentation after load_segments() (bsc#1265132).
• CVE-2026-43355: iio: light: bh1780: fix PM runtime leak on error path (bsc#1265036).
• CVE-2026-43363: x86/apic: Disable x2apic on resume if the kernel expects so (bsc#1265068).
• CVE-2026-43416: powerpc, perf: Check that current->mm is alive before getting user callchain (bsc#1265121).
• CVE-2026-43439: cgroup: fix race between task migration and iteration (bsc#1265141).
• CVE-2026-43448: nvme-pci: Fix race bug in nvme_poll_irqdisable() (bsc#1264807).
• CVE-2026-45860: netfilter: nf_conncount: increase the connection clean up limit to 64 (bsc#1266710).
• CVE-2026-45897: netfilter: nft_counter: serialize reset with spinlock (bsc#1266897).
• CVE-2026-45968: cpuidle: Skip governor when only one idle state is available (bsc#1267023).
• CVE-2026-46007: hwmon: (powerz) Avoid cacheline sharing for DMA buffer (bsc#1267586).
• CVE-2026-46070: md/raid5: validate payload size before accessing journal metadata (bsc#1267501).
• CVE-2026-46107: dm-thin: fix metadata refcount underflow (bsc#1267612).
• CVE-2026-46115: block: add pgmap check to biovec_phys_mergeable (bsc#1266874).
• CVE-2026-46133: RDMA/rxe: Reject unknown opcodes before ICRC processing (bsc#1266928).
• CVE-2026-46135: nvmet-tcp: remove redundant calls to nvmet_tcp_fatal_error() (bsc#1267373).
• CVE-2026-46195: smb: client: validate dacloffset before building DACL pointers (bsc#1266860).
• CVE-2026-46304: nvmet: avoid recursive nvmet-wq flush in nvmet_ctrl_free (bsc#1267985).
• CVE-2026-52912: netfilter: nf_queue: hold bridge skb->dev while queued (bsc#1269000).
• CVE-2026-52920: netfilter: xt_policy: fix strict mode inbound policy matching (bsc#1269013).
• CVE-2026-52928: af_unix: Reject SIOCATMARK on non-stream sockets (bsc#1269010).
• CVE-2026-52929: sctp: stream: fully roll back denied add-stream state (bsc#1269004).
• CVE-2026-52935: xfrm: espintcp: do not reuse an in-progress partial send (bsc#1268979).
• CVE-2026-52939: net/rds: fix NULL deref in rds_ib_send_cqe_handler() on masked atomic completion (bsc#1268972).
• CVE-2026-52946: fs/fcntl: fix SOFTIRQ-unsafe lock order in fasync signaling (bsc#1269113).
• CVE-2026-52977: futex: Prevent lockup in requeue-PI during signal/ timeout wakeup (bsc#1269242).
• CVE-2026-52990: fsnotify: fix inode reference leak in fsnotify_recalc_mask() (bsc#1269108). -…

The SUSE Linux Enterprise 16.0 kernel was updated to fix various security issues:

The following security issues were fixed:

• CVE-2025-68214: timers: Fix NULL function pointer race in timer_shutdown_sync() (bsc#1255225).
• CVE-2025-68358: btrfs: fix racy bitfield write in btrfs_clear_space_info_full() (bsc#1255531).
• CVE-2025-68780: sched/deadline: only set free_cpus for online runqueues (bsc#1256671).
• CVE-2025-71075: scsi: aic94xx: fix use-after-free in device removal path (bsc#1256629).
• CVE-2026-23113: io_uring/io-wq: check IO_WQ_BIT_EXIT inside work run loop (bsc#1258278).
• CVE-2026-23306: scsi: pm8001: Fix use-after-free in pm8001_queue_command() (bsc#1260501).
• CVE-2026-23348: cxl/mem: Clarify @host for devm_cxl_add_nvdimm() (bsc#1260577).
• CVE-2026-31418: netfilter: ipset: drop logically empty buckets in mtype_del (bsc#1262073).
• CVE-2026-31530: cxl/port: Fix use after free of parent_port in cxl_detach_ep() (bsc#1262756).
• CVE-2026-31531: ipv4: nexthop: allocate skb dynamically in rtm_get_nexthop() (bsc#1263004).
• CVE-2026-43116: netfilter: ctnetlink: ensure safe access to master conntrack (bsc#1264619).
• CVE-2026-43125: dlm: validate length in dlm_search_rsb_tree (bsc#1264541).
• CVE-2026-43163: md/bitmap: fix GPF in write_page caused by resize race (bsc#1264335).
• CVE-2026-43239: smb: client: prevent races in ->query_interfaces() (bsc#1264444).
• CVE-2026-43271: md-cluster: fix NULL pointer dereference in process_metadata_update (bsc#1264587).
• CVE-2026-43299: btrfs: do not ASSERT() when the fs flips RO inside btrfs_repair_io_failure() (bsc#1264851).
• CVE-2026-43331: x86/kexec: Disable KCOV instrumentation after load_segments() (bsc#1265132).
• CVE-2026-43355: iio: light: bh1780: fix PM runtime leak on error path (bsc#1265036).
• CVE-2026-43363: x86/apic: Disable x2apic on resume if the kernel expects so (bsc#1265068).
• CVE-2026-43416: powerpc, perf: Check that current->mm is alive before getting user callchain (bsc#1265121).
• CVE-2026-43439: cgroup: fix race between task migration and iteration (bsc#1265141).
• CVE-2026-43448: nvme-pci: Fix race bug in nvme_poll_irqdisable() (bsc#1264807).
• CVE-2026-45860: netfilter: nf_conncount: increase the connection clean up limit to 64 (bsc#1266710).
• CVE-2026-45897: netfilter: nft_counter: serialize reset with spinlock (bsc#1266897).
• CVE-2026-45968: cpuidle: Skip governor when only one idle state is available (bsc#1267023).
• CVE-2026-46007: hwmon: (powerz) Avoid cacheline sharing for DMA buffer (bsc#1267586).
• CVE-2026-46070: md/raid5: validate payload size before accessing journal metadata (bsc#1267501).
• CVE-2026-46107: dm-thin: fix metadata refcount underflow (bsc#1267612).
• CVE-2026-46115: block: add pgmap check to biovec_phys_mergeable (bsc#1266874).
• CVE-2026-46133: RDMA/rxe: Reject unknown opcodes before ICRC processing (bsc#1266928).
• CVE-2026-46135: nvmet-tcp: remove redundant calls to nvmet_tcp_fatal_error() (bsc#1267373).
• CVE-2026-46195: smb: client: validate dacloffset before building DACL pointers (bsc#1266860).
• CVE-2026-46304: nvmet: avoid recursive nvmet-wq flush in nvmet_ctrl_free (bsc#1267985).
• CVE-2026-52912: netfilter: nf_queue: hold bridge skb->dev while queued (bsc#1269000).
• CVE-2026-52920: netfilter: xt_policy: fix strict mode inbound policy matching (bsc#1269013).
• CVE-2026-52928: af_unix: Reject SIOCATMARK on non-stream sockets (bsc#1269010).
• CVE-2026-52929: sctp: stream: fully roll back denied add-stream state (bsc#1269004).
• CVE-2026-52935: xfrm: espintcp: do not reuse an in-progress partial send (bsc#1268979).
• CVE-2026-52939: net/rds: fix NULL deref in rds_ib_send_cqe_handler() on masked atomic completion (bsc#1268972).
• CVE-2026-52946: fs/fcntl: fix SOFTIRQ-unsafe lock order in fasync signaling (bsc#1269113).
• CVE-2026-52977: futex: Prevent lockup in requeue-PI during signal/ timeout wakeup (bsc#1269242).
• CVE-2026-52990: fsnotify: fix inode reference leak in fsnotify_recalc_mask() (bsc#1269108). -…

The SUSE Linux Enterprise Micro 6.0 and Micro 6.1 kernel was updated to fix various security issues:

The following security issues were fixed:

• CVE-2025-68358: btrfs: fix racy bitfield write in btrfs_clear_space_info_full() (bsc#1255531).
• CVE-2026-43091: xfrm: Wait for RCU readers during policy netns exit (bsc#1264267).
• CVE-2026-43299: btrfs: do not ASSERT() when the fs flips RO inside btrfs_repair_io_failure() (bsc#1264851).
• CVE-2026-45865: mctp i2c: initialise event handler read bytes (bsc#1266694).
• CVE-2026-45930: net: mctp: ensure our nlmsg responses are initialised (bsc#1266730).
• CVE-2026-53108: powerpc/64s: Fix unmap race with PMD migration entries (bsc#1269561).
• CVE-2026-63830: bpf, sockmap: Several fixes to bpf_msg_push_data (bsc#1272178).
• CVE-2026-63983: net: Introduce skb tc depth field to track packet loops (bsc#1273040).
• CVE-2026-64012: net/sched: sch_sfb: Replace direct dequeue call with peek and qdisc_dequeue_peeked (bsc#1273764).
• CVE-2026-64070: powerpc/hv-gpci: fix preempt count leak in sysfs show paths (bsc#1273116).
• CVE-2026-64116: ipv6: ioam: add NULL check for idev in ipv6_hop_ioam() (bsc#1273751).
• CVE-2026-64280: fpga: dfl-afu: validate DMA mapping length in afu_dma_map_region() (bsc#1273599).
• CVE-2026-64422: net: ipv4: bound TCP reordering sysctl writes and MTU probe sizes (bsc#1273290).
• CVE-2026-64424: netpoll: fix a use-after-free on shutdown path (bsc#1274256).
• CVE-2026-64461: PCI: mediatek: Fix IRQ domain leak when port fails to enable (bsc#1273865).
• CVE-2026-64568: wifi: mac80211: fix unsol_bcast_probe_resp double free on alloc failure (bsc#1274008).
• CVE-2026-68233: drm/vc4: Shut down BO cache timer before teardown (bsc#1275644).
• CVE-2026-68241: drm/i915/mst: limit DP MST ESI service loop (bsc#1275785).
• CVE-2026-68242: drm/i915/gt: Fix NULL deref on sched_engine alloc failure (bsc#1275786).
• CVE-2026-68323: tipc: serialize udp bearer replicast list updates (bsc#1274653).
• CVE-2026-72015: fs/resctrl: Fix double-add of pseudo-locked region's RMID to free list (bsc#1276791).
• CVE-2026-72040: ipmi: fix refcount leak in i_ipmi_request() (bsc#1276836).
• CVE-2026-72041: espintcp: use sk_msg_free_partial to fix partial send (bsc#1275510).
• CVE-2026-72081: scsi: elx: efct: Fix I/O leak on unsupported additional CDB (bsc#1277174).
• CVE-2026-72172: mm/mm_init: fix uninitialized struct pages for ZONE_DEVICE (bsc#1277691).
• CVE-2026-72213: mm/hugetlb: fix hugetlb cgroup rsvd charge/uncharge mismatch (bsc#1277603).
• CVE-2026-72236: s390/perf_cpum_cf: Add missing array_index_nospec() to __hw_perf_event_init() (bsc#1277614).
• CVE-2026-72301: ASoC: SOF: ipc3-control: Fix TOCTOU in bytes_put and bytes_get (bsc#1277742).
• CVE-2026-72305: VDUSE: avoid leaking information to userspace (bsc#1277747).
• CVE-2026-72319: ipvs: fix PMTU for GUE/GRE tunnel ICMP errors (bsc#1275964).
• CVE-2026-72493: net: serialize netif_running() check in enqueue_to_backlog() (bsc#1276951).
• CVE-2026-74312: vhost/vdpa: validate virtqueue index in mmap and fault paths (bsc#1276873).
• CVE-2026-74379: dax/kmem: account for partial discontiguous resource upon removal (bsc#1278232).
• CVE-2026-74544: net/sched: cls_u32: validate offshift to prevent shift-out-of-bounds (bsc#1277894).
• CVE-2026-74578: crypto: algif_skcipher - force synchronous processing on trees without ctx->state (bsc#1275564).
• CVE-2026-74583: net/sched: cls_route: fix fastmap use-after-free on filter (bsc#1277889).
• CVE-2026-74587: sctp: fix use-after-free of cached ASCONF chunk (bsc#1277821).
• CVE-2026-74611: tls: rx: restore msg_iter before TLS 1.3 optimistic retry (bsc#1277804).
• CVE-2026-74614: vsock/virtio: read virtqueues under worker locks (bsc#1277931).
• CVE-2026-74653: serial: 8250_of: clear stuck empty-FIFO RX-timeout on LPC32xx (bsc#1277310).
• CVE-2026-74723: btrfs: lzo: reject inline extents without valid headers (bsc#1276562).
• CVE-2026-80579: fbdev: clear fb_info->mode before deleting a videomode…

The SUSE Linux Enterprise Micro 6.0 and Micro 6.1 kernel was updated to fix various security issues:

The following security issues were fixed:

• CVE-2025-68358: btrfs: fix racy bitfield write in btrfs_clear_space_info_full() (bsc#1255531).
• CVE-2026-43091: xfrm: Wait for RCU readers during policy netns exit (bsc#1264267).
• CVE-2026-43299: btrfs: do not ASSERT() when the fs flips RO inside btrfs_repair_io_failure() (bsc#1264851).
• CVE-2026-45865: mctp i2c: initialise event handler read bytes (bsc#1266694).
• CVE-2026-45930: net: mctp: ensure our nlmsg responses are initialised (bsc#1266730).
• CVE-2026-53108: powerpc/64s: Fix unmap race with PMD migration entries (bsc#1269561).
• CVE-2026-63830: bpf, sockmap: Several fixes to bpf_msg_push_data (bsc#1272178).
• CVE-2026-63983: net: Introduce skb tc depth field to track packet loops (bsc#1273040).
• CVE-2026-64012: net/sched: sch_sfb: Replace direct dequeue call with peek and qdisc_dequeue_peeked (bsc#1273764).
• CVE-2026-64070: powerpc/hv-gpci: fix preempt count leak in sysfs show paths (bsc#1273116).
• CVE-2026-64116: ipv6: ioam: add NULL check for idev in ipv6_hop_ioam() (bsc#1273751).
• CVE-2026-64280: fpga: dfl-afu: validate DMA mapping length in afu_dma_map_region() (bsc#1273599).
• CVE-2026-64422: net: ipv4: bound TCP reordering sysctl writes and MTU probe sizes (bsc#1273290).
• CVE-2026-64424: netpoll: fix a use-after-free on shutdown path (bsc#1274256).
• CVE-2026-64461: PCI: mediatek: Fix IRQ domain leak when port fails to enable (bsc#1273865).
• CVE-2026-64568: wifi: mac80211: fix unsol_bcast_probe_resp double free on alloc failure (bsc#1274008).
• CVE-2026-68233: drm/vc4: Shut down BO cache timer before teardown (bsc#1275644).
• CVE-2026-68241: drm/i915/mst: limit DP MST ESI service loop (bsc#1275785).
• CVE-2026-68242: drm/i915/gt: Fix NULL deref on sched_engine alloc failure (bsc#1275786).
• CVE-2026-68323: tipc: serialize udp bearer replicast list updates (bsc#1274653).
• CVE-2026-72015: fs/resctrl: Fix double-add of pseudo-locked region's RMID to free list (bsc#1276791).
• CVE-2026-72040: ipmi: fix refcount leak in i_ipmi_request() (bsc#1276836).
• CVE-2026-72041: espintcp: use sk_msg_free_partial to fix partial send (bsc#1275510).
• CVE-2026-72081: scsi: elx: efct: Fix I/O leak on unsupported additional CDB (bsc#1277174).
• CVE-2026-72172: mm/mm_init: fix uninitialized struct pages for ZONE_DEVICE (bsc#1277691).
• CVE-2026-72213: mm/hugetlb: fix hugetlb cgroup rsvd charge/uncharge mismatch (bsc#1277603).
• CVE-2026-72236: s390/perf_cpum_cf: Add missing array_index_nospec() to __hw_perf_event_init() (bsc#1277614).
• CVE-2026-72301: ASoC: SOF: ipc3-control: Fix TOCTOU in bytes_put and bytes_get (bsc#1277742).
• CVE-2026-72305: VDUSE: avoid leaking information to userspace (bsc#1277747).
• CVE-2026-72319: ipvs: fix PMTU for GUE/GRE tunnel ICMP errors (bsc#1275964).
• CVE-2026-72493: net: serialize netif_running() check in enqueue_to_backlog() (bsc#1276951).
• CVE-2026-74312: vhost/vdpa: validate virtqueue index in mmap and fault paths (bsc#1276873).
• CVE-2026-74379: dax/kmem: account for partial discontiguous resource upon removal (bsc#1278232).
• CVE-2026-74544: net/sched: cls_u32: validate offshift to prevent shift-out-of-bounds (bsc#1277894).
• CVE-2026-74578: crypto: algif_skcipher - force synchronous processing on trees without ctx->state (bsc#1275564).
• CVE-2026-74583: net/sched: cls_route: fix fastmap use-after-free on filter (bsc#1277889).
• CVE-2026-74587: sctp: fix use-after-free of cached ASCONF chunk (bsc#1277821).
• CVE-2026-74611: tls: rx: restore msg_iter before TLS 1.3 optimistic retry (bsc#1277804).
• CVE-2026-74614: vsock/virtio: read virtqueues under worker locks (bsc#1277931).
• CVE-2026-74653: serial: 8250_of: clear stuck empty-FIFO RX-timeout on LPC32xx (bsc#1277310).
• CVE-2026-74723: btrfs: lzo: reject inline extents without valid headers (bsc#1276562).
• CVE-2026-80579: fbdev: clear fb_info->mode before deleting a videomode…

The SUSE Linux Enterprise Micro 6.0 and Micro 6.1 RT kernel was updated to fix various security issues:

The following security issues were fixed:

• CVE-2025-68358: btrfs: fix racy bitfield write in btrfs_clear_space_info_full() (bsc#1255531).
• CVE-2026-43091: xfrm: Wait for RCU readers during policy netns exit (bsc#1264267).
• CVE-2026-43299: btrfs: do not ASSERT() when the fs flips RO inside btrfs_repair_io_failure() (bsc#1264851).
• CVE-2026-45865: mctp i2c: initialise event handler read bytes (bsc#1266694).
• CVE-2026-45930: net: mctp: ensure our nlmsg responses are initialised (bsc#1266730).
• CVE-2026-53108: powerpc/64s: Fix unmap race with PMD migration entries (bsc#1269561).
• CVE-2026-63830: bpf, sockmap: Several fixes to bpf_msg_push_data (bsc#1272178).
• CVE-2026-63983: net: Introduce skb tc depth field to track packet loops (bsc#1273040).
• CVE-2026-64012: net/sched: sch_sfb: Replace direct dequeue call with peek and qdisc_dequeue_peeked (bsc#1273764).
• CVE-2026-64070: powerpc/hv-gpci: fix preempt count leak in sysfs show paths (bsc#1273116).
• CVE-2026-64116: ipv6: ioam: add NULL check for idev in ipv6_hop_ioam() (bsc#1273751).
• CVE-2026-64280: fpga: dfl-afu: validate DMA mapping length in afu_dma_map_region() (bsc#1273599).
• CVE-2026-64422: net: ipv4: bound TCP reordering sysctl writes and MTU probe sizes (bsc#1273290).
• CVE-2026-64424: netpoll: fix a use-after-free on shutdown path (bsc#1274256).
• CVE-2026-64461: PCI: mediatek: Fix IRQ domain leak when port fails to enable (bsc#1273865).
• CVE-2026-64568: wifi: mac80211: fix unsol_bcast_probe_resp double free on alloc failure (bsc#1274008).
• CVE-2026-68233: drm/vc4: Shut down BO cache timer before teardown (bsc#1275644).
• CVE-2026-68241: drm/i915/mst: limit DP MST ESI service loop (bsc#1275785).
• CVE-2026-68242: drm/i915/gt: Fix NULL deref on sched_engine alloc failure (bsc#1275786).
• CVE-2026-68323: tipc: serialize udp bearer replicast list updates (bsc#1274653).
• CVE-2026-72015: fs/resctrl: Fix double-add of pseudo-locked region's RMID to free list (bsc#1276791).
• CVE-2026-72040: ipmi: fix refcount leak in i_ipmi_request() (bsc#1276836).
• CVE-2026-72041: espintcp: use sk_msg_free_partial to fix partial send (bsc#1275510).
• CVE-2026-72081: scsi: elx: efct: Fix I/O leak on unsupported additional CDB (bsc#1277174).
• CVE-2026-72172: mm/mm_init: fix uninitialized struct pages for ZONE_DEVICE (bsc#1277691).
• CVE-2026-72213: mm/hugetlb: fix hugetlb cgroup rsvd charge/uncharge mismatch (bsc#1277603).
• CVE-2026-72236: s390/perf_cpum_cf: Add missing array_index_nospec() to __hw_perf_event_init() (bsc#1277614).
• CVE-2026-72301: ASoC: SOF: ipc3-control: Fix TOCTOU in bytes_put and bytes_get (bsc#1277742).
• CVE-2026-72305: VDUSE: avoid leaking information to userspace (bsc#1277747).
• CVE-2026-72319: ipvs: fix PMTU for GUE/GRE tunnel ICMP errors (bsc#1275964).
• CVE-2026-72493: net: serialize netif_running() check in enqueue_to_backlog() (bsc#1276951).
• CVE-2026-74312: vhost/vdpa: validate virtqueue index in mmap and fault paths (bsc#1276873).
• CVE-2026-74379: dax/kmem: account for partial discontiguous resource upon removal (bsc#1278232).
• CVE-2026-74544: net/sched: cls_u32: validate offshift to prevent shift-out-of-bounds (bsc#1277894).
• CVE-2026-74578: crypto: algif_skcipher - force synchronous processing on trees without ctx->state (bsc#1275564).
• CVE-2026-74583: net/sched: cls_route: fix fastmap use-after-free on filter (bsc#1277889).
• CVE-2026-74587: sctp: fix use-after-free of cached ASCONF chunk (bsc#1277821).
• CVE-2026-74611: tls: rx: restore msg_iter before TLS 1.3 optimistic retry (bsc#1277804).
• CVE-2026-74614: vsock/virtio: read virtqueues under worker locks (bsc#1277931).
• CVE-2026-74653: serial: 8250_of: clear stuck empty-FIFO RX-timeout on LPC32xx (bsc#1277310).
• CVE-2026-74723: btrfs: lzo: reject inline extents without valid headers (bsc#1276562).
• CVE-2026-80579: fbdev: clear fb_info->mode before deleting a videomode…

The SUSE Linux Enterprise Micro 6.0 and Micro 6.1 RT kernel was updated to fix various security issues:

The following security issues were fixed:

• CVE-2025-68358: btrfs: fix racy bitfield write in btrfs_clear_space_info_full() (bsc#1255531).
• CVE-2026-43091: xfrm: Wait for RCU readers during policy netns exit (bsc#1264267).
• CVE-2026-43299: btrfs: do not ASSERT() when the fs flips RO inside btrfs_repair_io_failure() (bsc#1264851).
• CVE-2026-45865: mctp i2c: initialise event handler read bytes (bsc#1266694).
• CVE-2026-45930: net: mctp: ensure our nlmsg responses are initialised (bsc#1266730).
• CVE-2026-53108: powerpc/64s: Fix unmap race with PMD migration entries (bsc#1269561).
• CVE-2026-63830: bpf, sockmap: Several fixes to bpf_msg_push_data (bsc#1272178).
• CVE-2026-63983: net: Introduce skb tc depth field to track packet loops (bsc#1273040).
• CVE-2026-64012: net/sched: sch_sfb: Replace direct dequeue call with peek and qdisc_dequeue_peeked (bsc#1273764).
• CVE-2026-64070: powerpc/hv-gpci: fix preempt count leak in sysfs show paths (bsc#1273116).
• CVE-2026-64116: ipv6: ioam: add NULL check for idev in ipv6_hop_ioam() (bsc#1273751).
• CVE-2026-64280: fpga: dfl-afu: validate DMA mapping length in afu_dma_map_region() (bsc#1273599).
• CVE-2026-64422: net: ipv4: bound TCP reordering sysctl writes and MTU probe sizes (bsc#1273290).
• CVE-2026-64424: netpoll: fix a use-after-free on shutdown path (bsc#1274256).
• CVE-2026-64461: PCI: mediatek: Fix IRQ domain leak when port fails to enable (bsc#1273865).
• CVE-2026-64568: wifi: mac80211: fix unsol_bcast_probe_resp double free on alloc failure (bsc#1274008).
• CVE-2026-68233: drm/vc4: Shut down BO cache timer before teardown (bsc#1275644).
• CVE-2026-68241: drm/i915/mst: limit DP MST ESI service loop (bsc#1275785).
• CVE-2026-68242: drm/i915/gt: Fix NULL deref on sched_engine alloc failure (bsc#1275786).
• CVE-2026-68323: tipc: serialize udp bearer replicast list updates (bsc#1274653).
• CVE-2026-72015: fs/resctrl: Fix double-add of pseudo-locked region's RMID to free list (bsc#1276791).
• CVE-2026-72040: ipmi: fix refcount leak in i_ipmi_request() (bsc#1276836).
• CVE-2026-72041: espintcp: use sk_msg_free_partial to fix partial send (bsc#1275510).
• CVE-2026-72081: scsi: elx: efct: Fix I/O leak on unsupported additional CDB (bsc#1277174).
• CVE-2026-72172: mm/mm_init: fix uninitialized struct pages for ZONE_DEVICE (bsc#1277691).
• CVE-2026-72213: mm/hugetlb: fix hugetlb cgroup rsvd charge/uncharge mismatch (bsc#1277603).
• CVE-2026-72236: s390/perf_cpum_cf: Add missing array_index_nospec() to __hw_perf_event_init() (bsc#1277614).
• CVE-2026-72301: ASoC: SOF: ipc3-control: Fix TOCTOU in bytes_put and bytes_get (bsc#1277742).
• CVE-2026-72305: VDUSE: avoid leaking information to userspace (bsc#1277747).
• CVE-2026-72319: ipvs: fix PMTU for GUE/GRE tunnel ICMP errors (bsc#1275964).
• CVE-2026-72493: net: serialize netif_running() check in enqueue_to_backlog() (bsc#1276951).
• CVE-2026-74312: vhost/vdpa: validate virtqueue index in mmap and fault paths (bsc#1276873).
• CVE-2026-74379: dax/kmem: account for partial discontiguous resource upon removal (bsc#1278232).
• CVE-2026-74544: net/sched: cls_u32: validate offshift to prevent shift-out-of-bounds (bsc#1277894).
• CVE-2026-74578: crypto: algif_skcipher - force synchronous processing on trees without ctx->state (bsc#1275564).
• CVE-2026-74583: net/sched: cls_route: fix fastmap use-after-free on filter (bsc#1277889).
• CVE-2026-74587: sctp: fix use-after-free of cached ASCONF chunk (bsc#1277821).
• CVE-2026-74611: tls: rx: restore msg_iter before TLS 1.3 optimistic retry (bsc#1277804).
• CVE-2026-74614: vsock/virtio: read virtqueues under worker locks (bsc#1277931).
• CVE-2026-74653: serial: 8250_of: clear stuck empty-FIFO RX-timeout on LPC32xx (bsc#1277310).
• CVE-2026-74723: btrfs: lzo: reject inline extents without valid headers (bsc#1276562).
• CVE-2026-80579: fbdev: clear fb_info->mode before deleting a videomode…

The SUSE Linux Enterprise 15 SP7 kernel was updated to fix various security issues:

The following security issues were fixed:

• CVE-2025-68358: btrfs: fix racy bitfield write in btrfs_clear_space_info_full() (bsc#1255531).
• CVE-2026-43091: xfrm: Wait for RCU readers during policy netns exit (bsc#1264267).
• CVE-2026-43132: dm-verity: correctly handle dm_bufio_client_create() failure (bsc#1264614).
• CVE-2026-43184: rnbd-srv: Zero the rsp buffer before using it (bsc#1264622).
• CVE-2026-43283: net: ethernet: ec_bhf: Fix dma_free_coherent() dma handle (bsc#1264295).
• CVE-2026-43299: btrfs: do not ASSERT() when the fs flips RO inside btrfs_repair_io_failure() (bsc#1264851).
• CVE-2026-43457: mctp: i2c: fix skb memory leak in receive path (bsc#1265000).
• CVE-2026-45865: mctp i2c: initialise event handler read bytes (bsc#1266694).
• CVE-2026-45930: net: mctp: ensure our nlmsg responses are initialised (bsc#1266730).
• CVE-2026-46034: vfio/cdx: Fix NULL pointer dereference in interrupt trigger path (bsc#1266757).
• CVE-2026-53108: powerpc/64s: Fix unmap race with PMD migration entries (bsc#1269561).
• CVE-2026-63830: bpf, sockmap: Several fixes to bpf_msg_push_data (bsc#1272178).
• CVE-2026-63983: net: Introduce skb tc depth field to track packet loops (bsc#1273040).
• CVE-2026-64012: net/sched: sch_sfb: Replace direct dequeue call with peek and qdisc_dequeue_peeked (bsc#1273764).
• CVE-2026-64070: powerpc/hv-gpci: fix preempt count leak in sysfs show paths (bsc#1273116).
• CVE-2026-64116: ipv6: ioam: add NULL check for idev in ipv6_hop_ioam() (bsc#1273751).
• CVE-2026-64280: fpga: dfl-afu: validate DMA mapping length in afu_dma_map_region() (bsc#1273599).
• CVE-2026-64422: net: ipv4: bound TCP reordering sysctl writes and MTU probe sizes (bsc#1273290).
• CVE-2026-64424: netpoll: fix a use-after-free on shutdown path (bsc#1274256).
• CVE-2026-64428: gpio: sch: use raw_spinlock_t in the irq startup path (bsc#1274039).
• CVE-2026-64461: PCI: mediatek: Fix IRQ domain leak when port fails to enable (bsc#1273865).
• CVE-2026-68233: drm/vc4: Shut down BO cache timer before teardown (bsc#1275644).
• CVE-2026-68241: drm/i915/mst: limit DP MST ESI service loop (bsc#1275785).
• CVE-2026-68242: drm/i915/gt: Fix NULL deref on sched_engine alloc failure (bsc#1275786).
• CVE-2026-68323: tipc: serialize udp bearer replicast list updates (bsc#1274653).
• CVE-2026-72015: fs/resctrl: Fix double-add of pseudo-locked region's RMID to free list (bsc#1276791).
• CVE-2026-72040: ipmi: fix refcount leak in i_ipmi_request() (bsc#1276836).
• CVE-2026-72041: espintcp: use sk_msg_free_partial to fix partial send (bsc#1275510).
• CVE-2026-72081: scsi: elx: efct: Fix I/O leak on unsupported additional CDB (bsc#1277174).
• CVE-2026-72172: mm/mm_init: fix uninitialized struct pages for ZONE_DEVICE (bsc#1277691).
• CVE-2026-72212: mm/memory_hotplug: fix incorrect altmap passing in error path (bsc#1277602).
• CVE-2026-72213: mm/hugetlb: fix hugetlb cgroup rsvd charge/uncharge mismatch (bsc#1277603).
• CVE-2026-72236: s390/perf_cpum_cf: Add missing array_index_nospec() to __hw_perf_event_init() (bsc#1277614).
• CVE-2026-72301: ASoC: SOF: ipc3-control: Fix TOCTOU in bytes_put and bytes_get (bsc#1277742).
• CVE-2026-72305: VDUSE: avoid leaking information to userspace (bsc#1277747).
• CVE-2026-72319: ipvs: fix PMTU for GUE/GRE tunnel ICMP errors (bsc#1275964).
• CVE-2026-72493: net: serialize netif_running() check in enqueue_to_backlog() (bsc#1276951).
• CVE-2026-74312: vhost/vdpa: validate virtqueue index in mmap and fault paths (bsc#1276873).
• CVE-2026-74379: dax/kmem: account for partial discontiguous resource upon removal (bsc#1278232).
• CVE-2026-74544: net/sched: cls_u32: validate offshift to prevent shift-out-of-bounds (bsc#1277894).
• CVE-2026-74578: crypto: algif_skcipher - force synchronous processing on trees without ctx->state (bsc#1275564).
• CVE-2026-74583: net/sched: cls_route: fix fastmap use-after-free on filter (bsc#1277889).
• CVE-2026-74587:…

The SUSE Linux Enterprise 15 SP7 RT kernel was updated to fix various security issues:

The following security issues were fixed:

• CVE-2025-68358: btrfs: fix racy bitfield write in btrfs_clear_space_info_full() (bsc#1255531).
• CVE-2026-43091: xfrm: Wait for RCU readers during policy netns exit (bsc#1264267).
• CVE-2026-43132: dm-verity: correctly handle dm_bufio_client_create() failure (bsc#1264614).
• CVE-2026-43184: rnbd-srv: Zero the rsp buffer before using it (bsc#1264622).
• CVE-2026-43283: net: ethernet: ec_bhf: Fix dma_free_coherent() dma handle (bsc#1264295).
• CVE-2026-43299: btrfs: do not ASSERT() when the fs flips RO inside btrfs_repair_io_failure() (bsc#1264851).
• CVE-2026-43457: mctp: i2c: fix skb memory leak in receive path (bsc#1265000).
• CVE-2026-45865: mctp i2c: initialise event handler read bytes (bsc#1266694).
• CVE-2026-45930: net: mctp: ensure our nlmsg responses are initialised (bsc#1266730).
• CVE-2026-46034: vfio/cdx: Fix NULL pointer dereference in interrupt trigger path (bsc#1266757).
• CVE-2026-53108: powerpc/64s: Fix unmap race with PMD migration entries (bsc#1269561).
• CVE-2026-63830: bpf, sockmap: Several fixes to bpf_msg_push_data (bsc#1272178).
• CVE-2026-63983: net: Introduce skb tc depth field to track packet loops (bsc#1273040).
• CVE-2026-64012: net/sched: sch_sfb: Replace direct dequeue call with peek and qdisc_dequeue_peeked (bsc#1273764).
• CVE-2026-64070: powerpc/hv-gpci: fix preempt count leak in sysfs show paths (bsc#1273116).
• CVE-2026-64116: ipv6: ioam: add NULL check for idev in ipv6_hop_ioam() (bsc#1273751).
• CVE-2026-64280: fpga: dfl-afu: validate DMA mapping length in afu_dma_map_region() (bsc#1273599).
• CVE-2026-64422: net: ipv4: bound TCP reordering sysctl writes and MTU probe sizes (bsc#1273290).
• CVE-2026-64424: netpoll: fix a use-after-free on shutdown path (bsc#1274256).
• CVE-2026-64428: gpio: sch: use raw_spinlock_t in the irq startup path (bsc#1274039).
• CVE-2026-64461: PCI: mediatek: Fix IRQ domain leak when port fails to enable (bsc#1273865).
• CVE-2026-68233: drm/vc4: Shut down BO cache timer before teardown (bsc#1275644).
• CVE-2026-68241: drm/i915/mst: limit DP MST ESI service loop (bsc#1275785).
• CVE-2026-68242: drm/i915/gt: Fix NULL deref on sched_engine alloc failure (bsc#1275786).
• CVE-2026-68323: tipc: serialize udp bearer replicast list updates (bsc#1274653).
• CVE-2026-72015: fs/resctrl: Fix double-add of pseudo-locked region's RMID to free list (bsc#1276791).
• CVE-2026-72040: ipmi: fix refcount leak in i_ipmi_request() (bsc#1276836).
• CVE-2026-72041: espintcp: use sk_msg_free_partial to fix partial send (bsc#1275510).
• CVE-2026-72081: scsi: elx: efct: Fix I/O leak on unsupported additional CDB (bsc#1277174).
• CVE-2026-72172: mm/mm_init: fix uninitialized struct pages for ZONE_DEVICE (bsc#1277691).
• CVE-2026-72212: mm/memory_hotplug: fix incorrect altmap passing in error path (bsc#1277602).
• CVE-2026-72213: mm/hugetlb: fix hugetlb cgroup rsvd charge/uncharge mismatch (bsc#1277603).
• CVE-2026-72236: s390/perf_cpum_cf: Add missing array_index_nospec() to __hw_perf_event_init() (bsc#1277614).
• CVE-2026-72301: ASoC: SOF: ipc3-control: Fix TOCTOU in bytes_put and bytes_get (bsc#1277742).
• CVE-2026-72305: VDUSE: avoid leaking information to userspace (bsc#1277747).
• CVE-2026-72319: ipvs: fix PMTU for GUE/GRE tunnel ICMP errors (bsc#1275964).
• CVE-2026-72493: net: serialize netif_running() check in enqueue_to_backlog() (bsc#1276951).
• CVE-2026-74312: vhost/vdpa: validate virtqueue index in mmap and fault paths (bsc#1276873).
• CVE-2026-74379: dax/kmem: account for partial discontiguous resource upon removal (bsc#1278232).
• CVE-2026-74544: net/sched: cls_u32: validate offshift to prevent shift-out-of-bounds (bsc#1277894).
• CVE-2026-74578: crypto: algif_skcipher - force synchronous processing on trees without ctx->state (bsc#1275564).
• CVE-2026-74583: net/sched: cls_route: fix fastmap use-after-free on filter (bsc#1277889). -…

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems:

• NVDIMM (Non-Volatile Memory Device) drivers;
• Handshake API;
• ARM32 architecture;
• ARM64 architecture;
• MIPS architecture;
• OpenRISC architecture;
• PowerPC architecture;
• S390 architecture;
• x86 architecture;
• Block layer subsystem;
• Cryptographic API;
• Intel NPU Driver;
• Android drivers;
• Rados block device (RBD) driver;
• Bluetooth drivers;
• Hardware random number generator core;
• TPM device driver;
• CPU frequency scaling framework;
• Hardware crypto device drivers;
• DMA engine subsystem;
• FireWire subsystem;
• Arm Firmware Framework for ARMv8-A(FFA);
• GPIO subsystem;
• GPU drivers;
• HID subsystem;
• Hardware monitoring drivers;
• CoreSight HW tracing drivers;
• I2C subsystem;
• IIO ADC drivers;
• IIO subsystem;
• InfiniBand drivers;
• Input Device core drivers;
• Input Device (Mouse) drivers;
• IOMMU subsystem;
• Multiple devices driver;
• Media drivers;
• Multifunction device drivers;
• Fastrpc Driver;
• Amazon Nitro Secure Module driver;
• MMC subsystem;
• MTD block device drivers;
• Ethernet bonding driver;
• Network drivers;
• Mellanox network drivers;
• Texas Instruments network drivers;
• NTB driver;
• NVME drivers;
• NVMEM (Non Volatile Memory) drivers;
• Parport drivers;
• Pin controllers subsystem;
• x86 platform drivers;
• i.MX PM domains;
• System reset/shutdown drivers;
• PTP clock framework;
• Voltage and Current Regulator drivers;
• S/390 drivers;
• SCSI subsystem;
• SPI subsystem;
• Realtek RTL8723BS SDIO drivers;
• VME bus staging drivers;
• Thermal drivers;
• Thunderbolt and USB4 drivers;
• TTY drivers;
• DesignWare USB2 driver;
• USB Gadget drivers;
• USB Host Controller drivers;
• USB Dual Role (OTG-ready) Controller drivers;
• USB Serial drivers;
• USB Type-C Port Controller Manager driver;
• vDPA drivers;
• Virtio Host (VHOST) subsystem;
• Framebuffer layer;
• Watchdog drivers;
• 9P distributed file system;
• AFS file system;
• File systems infrastructure;
• BTRFS file system;
• Ceph distributed file system;
• EROFS file system;
• exFAT file system;
• F2FS file system;
• FUSE (File system in Userspace);
• Journaling layer for block devices (JBD2);
• Network file system (NFS) client;
• Network file system (NFS) server daemon;
• NTFS3 file system;
• OCFS2 file system;
• Proc file system;
• SMB network file system;
• Tracing file system;
• UDF file system;
• XFS file system;
• Key management;
• BPF subsystem;
• Control group (cgroup);
• Glob pattern matching library;
• MAC80211 subsystem;
• Mellanox drivers;
• Networking core;
• Network sockets;
• IPv6 networking;
• Bluetooth subsystem;
• Wireless networking;
• IPv4 networking;
• Netfilter;
• Network traffic control;
• SCTP protocol;
• TCP network protocol;
• XFRM subsystem;
• RDMA verbs API;
• io_uring subsystem;
• IPC subsystem;
• Audit subsystem;
• Kernel CPU control infrastructure;
• Perf events;
• Kernel exit() syscall;
• Kernel fork() syscall;
• Scheduler infrastructure;
• Signal handling mechanism;
• Timer subsystem;
• Tracing infrastructure;
• Resizable hashtable library;
• Memory management;
• 6LoWPAN network protocol;
• Asynchronous Transfer Mode (ATM) subsystem;
• B.A.T.M.A.N. meshing protocol;
• Ethernet bridge;
• CAN network layer;
• Ceph Core library;
• Ethtool driver;
• HSR network protocol;
• IEEE802154.4 network protocol;
• IUCV driver;
• KCM (Kernel Connection Multiplexor) sockets driver;
• IEEE 802.15.4 subsystem;
• Multipath TCP;
• Open vSwitch;
• Packet sockets;
• Phonet protocol;
• Qualcomm IPC Router (QRTR);
• RDS protocol;
• RxRPC session sockets;
• SMC…

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems:

• USB Gadget drivers;
• Memory management;
• Multiple devices driver;
• ARM64 architecture;
• EROFS file system;
• Networking core;
• eXpress Data Path;
• ARM32 architecture;
• M68K architecture;
• MIPS architecture;
• OpenRISC architecture;
• PA-RISC architecture;
• PowerPC architecture;
• RISC-V architecture;
• S390 architecture;
• User-Mode Linux (UML);
• x86 architecture;
• Block layer subsystem;
• Cryptographic API;
• Compute Acceleration Framework;
• Intel NPU Driver;
• Speakup Console Speech Driver;
• ACPI drivers;
• Serial ATA and Parallel ATA drivers;
• Auxiliary display drivers;
• Drivers core;
• Micron PCIe SSD driver;
• Null block device driver;
• Ublk userspace block driver;
• Compressed RAM block device driver;
• Bluetooth drivers;
• Bus devices;
• AMD CDX bus driver;
• Hardware random number generator core;
• Character device driver;
• TPM device driver;
• Clock framework and drivers;
• Clocksource drivers;
• CPU frequency scaling framework;
• CPU idle management framework;
• Hardware crypto device drivers;
• CXL (Compute Express Link) drivers;
• DAX dirext access to differentiated memory framework;
• DIBS (Direct Internal Buffer Sharing) drivers;
• Buffer Sharing and Synchronization framework;
• DMA engine subsystem;
• EDAC drivers;
• FireWire subsystem;
• ARM SCMI message protocol;
• ARM SCPI message protocol;
• Google firmware drivers;
• Qualcomm firmware drivers;
• FPGA Framework;
• GPIO subsystem;
• GPU drivers;
• HID subsystem;
• HSI subsystem;
• Microsoft Hyper-V drivers;
• Hardware monitoring drivers;
• CoreSight HW tracing drivers;
• I2C subsystem;
• I3C subsystem;
• IIO subsystem;
• InfiniBand drivers;
• Input Device core drivers;
• Input Device (Miscellaneous) drivers;
• Input Device (Mouse) drivers;
• On-Chip Interconnect management framework;
• IOMMU subsystem;
• Industry Pack bus drivers;
• IRQ chip drivers;
• Mailbox framework;
• Media drivers;
• MemoryStick subsystem;
• Multifunction device drivers;
• Analog Devices digital potentiometer driver;
• Broadcom VK accelerator driver;
• Fastrpc Driver;
• Amazon Nitro Secure Module driver;
• SGI GRU driver;
• MMC subsystem;
• MTD block device drivers;
• Network drivers;
• Ethernet bonding driver;
• Mellanox network drivers;
• Microsoft Azure Network Adapter (MANA) driver;
• STMicroelectronics network drivers;
• Texas Instruments network drivers;
• MediaTek network drivers;
• Near Field Communication (NFC) drivers;
• NTB driver;
• NVDIMM (Non-Volatile Memory Device) drivers;
• NVME drivers;
• Device tree and open firmware driver;
• Operating Performance Points (OPP) driver;
• PA-RISC drivers;
• PCI subsystem;
• Performance monitor drivers;
• PHY drivers;
• Pin controllers subsystem;
• Chrome hardware platform drivers;
• Mellanox platform drivers;
• Microsoft Surface platform drivers;
• x86 platform drivers;
• MediaTek PM domains;
• Power sequencing drivers;
• Power supply drivers;
• Powercap sysfs driver;
• PTP clock framework;
• PWM drivers;
• RapidIO drivers;
• Voltage and Current Regulator drivers;
• Remote Processor subsystem;
• MPAM driver;
• RPMSG subsystem;
• Real Time Clock drivers;
• S/390 drivers;
• SCSI subsystem;
• ASPEED SoC drivers;
• Samsung SoC drivers;
• SPI subsystem;
• small TFT LCD display modules;
• Greybus lights staging drivers;
• Media staging drivers;
• Realtek RTL8723BS SDIO drivers;
• TCM subsystem;
• Trusted Execution Environment drivers;
• Thermal drivers;
• Thunderbolt and USB4 drivers;
• TTY drivers;
• UFS subsystem;
• Userspace I/O drivers;
• USB DSL drivers;
• Cypress C67X00 USB…

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems:

• USB Gadget drivers;
• Memory management;
• Multiple devices driver;
• ARM64 architecture;
• EROFS file system;
• Networking core;
• eXpress Data Path;
• ARM32 architecture;
• M68K architecture;
• MIPS architecture;
• OpenRISC architecture;
• PA-RISC architecture;
• PowerPC architecture;
• RISC-V architecture;
• S390 architecture;
• User-Mode Linux (UML);
• x86 architecture;
• Block layer subsystem;
• Cryptographic API;
• Compute Acceleration Framework;
• Intel NPU Driver;
• Speakup Console Speech Driver;
• ACPI drivers;
• Serial ATA and Parallel ATA drivers;
• Auxiliary display drivers;
• Drivers core;
• Micron PCIe SSD driver;
• Null block device driver;
• Ublk userspace block driver;
• Compressed RAM block device driver;
• Bluetooth drivers;
• Bus devices;
• AMD CDX bus driver;
• Hardware random number generator core;
• Character device driver;
• TPM device driver;
• Clock framework and drivers;
• Clocksource drivers;
• CPU frequency scaling framework;
• CPU idle management framework;
• Hardware crypto device drivers;
• CXL (Compute Express Link) drivers;
• DAX dirext access to differentiated memory framework;
• DIBS (Direct Internal Buffer Sharing) drivers;
• Buffer Sharing and Synchronization framework;
• DMA engine subsystem;
• EDAC drivers;
• FireWire subsystem;
• ARM SCMI message protocol;
• ARM SCPI message protocol;
• Google firmware drivers;
• Qualcomm firmware drivers;
• FPGA Framework;
• GPIO subsystem;
• GPU drivers;
• HID subsystem;
• HSI subsystem;
• Microsoft Hyper-V drivers;
• Hardware monitoring drivers;
• CoreSight HW tracing drivers;
• I2C subsystem;
• I3C subsystem;
• IIO subsystem;
• InfiniBand drivers;
• Input Device core drivers;
• Input Device (Miscellaneous) drivers;
• Input Device (Mouse) drivers;
• On-Chip Interconnect management framework;
• IOMMU subsystem;
• Industry Pack bus drivers;
• IRQ chip drivers;
• Mailbox framework;
• Media drivers;
• MemoryStick subsystem;
• Multifunction device drivers;
• Analog Devices digital potentiometer driver;
• Broadcom VK accelerator driver;
• Fastrpc Driver;
• Amazon Nitro Secure Module driver;
• SGI GRU driver;
• MMC subsystem;
• MTD block device drivers;
• Network drivers;
• Ethernet bonding driver;
• Mellanox network drivers;
• Microsoft Azure Network Adapter (MANA) driver;
• STMicroelectronics network drivers;
• Texas Instruments network drivers;
• MediaTek network drivers;
• Near Field Communication (NFC) drivers;
• NTB driver;
• NVDIMM (Non-Volatile Memory Device) drivers;
• NVME drivers;
• Device tree and open firmware driver;
• Operating Performance Points (OPP) driver;
• PA-RISC drivers;
• PCI subsystem;
• Performance monitor drivers;
• PHY drivers;
• Pin controllers subsystem;
• Chrome hardware platform drivers;
• Mellanox platform drivers;
• Microsoft Surface platform drivers;
• x86 platform drivers;
• MediaTek PM domains;
• Power sequencing drivers;
• Power supply drivers;
• Powercap sysfs driver;
• PTP clock framework;
• PWM drivers;
• RapidIO drivers;
• Voltage and Current Regulator drivers;
• Remote Processor subsystem;
• MPAM driver;
• RPMSG subsystem;
• Real Time Clock drivers;
• S/390 drivers;
• SCSI subsystem;
• ASPEED SoC drivers;
• Samsung SoC drivers;
• SPI subsystem;
• small TFT LCD display modules;
• Greybus lights staging drivers;
• Media staging drivers;
• Realtek RTL8723BS SDIO drivers;
• TCM subsystem;
• Trusted Execution Environment drivers;
• Thermal drivers;
• Thunderbolt and USB4 drivers;
• TTY drivers;
• UFS subsystem;
• Userspace I/O drivers;
• USB DSL drivers;
• Cypress C67X00 USB…