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ALSA-2026:53330 — Important: kernel security, bug fix, and enhancement update

Affected: AlmaLinux:10: kernel, AlmaLinux:10: kernel-64k, AlmaLinux:10: kernel-64k-core, AlmaLinux:10: kernel-64k-debug, AlmaLinux:10: kernel-64k-debug-core, AlmaLinux:10: kernel-64k-debug-devel, AlmaLinux:10: kernel-64k-debug-devel-matched, AlmaLinux:10: kernel-64k-debug-modules, AlmaLinux:10: kernel-64k-debug-modules-core, AlmaLinux:10: kernel-64k-debug-modules-extra and 65 more

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

* kernel: fsnotify: Fix ordering of iput() and watched_objects decrement (CVE-2024-53143) * kernel: shmem: fix recovery on rename failures (CVE-2025-71072) * kernel: futex: Fix UaF between futex_key_to_node_opt() and vma_replace_policy() (CVE-2026-23415) * kernel: drm/amd/display: Do not skip unrelated mode changes in DSC validation (CVE-2026-31488) * kernel: ipc: limit next_id allocation to the valid ID range (CVE-2026-52923) * kernel: mm/slab: do not limit zeroing to orig_size when only red zoning is enabled (CVE-2026-64368) * kernel: net: openvswitch: reject oversized nested action attrs (CVE-2026-64531)

Bug Fix(es) and Enhancement(s):

* Kernel oops after increasing max number of mac addresses of a mlx5 VF [almalinux-10.2.z] (JIRA:AlmaLinux-213035) * AlmaLinux10.0 - s390/pkey: Check length in PKEY_VERIFYPROTK ioctl [almalinux-10.2.z] (JIRA:AlmaLinux-222503) * AlmaLinux10.0 - s390/pkey: Check length in pkey_pckmo handler implementation [almalinux-10.2.z] (JIRA:AlmaLinux-222505)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

bdu:2025-07285

BELL-CVE-2024-53143

Affected: Alpaquita:25: linux-lts, Alpaquita:stream: linux-lts

certfr-2025-avi-0152 — De multiples vulnérabilités ont été découvertes dans le noyau Linux d'Ubuntu. Certaines d'entre elles permettent à un a…

certfr-2025-avi-0152

EUVD-2026-346417

fkie_cve-2024-53143

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

fsnotify: Fix ordering of iput() and watched_objects decrement

Ensure the superblock is kept alive until we're done with iput(). Holding a reference to an inode is not allowed unless we ensure the superblock stays alive, which fsnotify does by keeping the watched_objects count elevated, so iput() must happen before the watched_objects decrement. This can lead to a UAF of something like sb->s_fs_info in tmpfs, but the UAF is hard to hit because race orderings that oops are more likely, thanks to the CHECK_DATA_CORRUPTION() block in generic_shutdown_super().

Also, ensure that fsnotify_put_sb_watched_objects() doesn't call fsnotify_sb_watched_objects() on a superblock that may have already been freed, which would cause a UAF read of sb->s_fsnotify_info.

GHSA-rfr4-95g9-6vf3

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

fsnotify: Fix ordering of iput() and watched_objects decrement

Also, ensure that fsnotify_put_sb_watched_objects() doesn't call fsnotify_sb_watched_objects() on a superblock that may have already been freed, which would cause a UAF read of sb->s_fsnotify_info.

RHSA-2026:53330 — Red Hat Security Advisory: kernel security, bug fix, and enhancement update

kernel: fsnotify: Fix ordering of iput() and watched_objects decrement kernel: shmem: fix recovery on rename failures kernel: futex: Fix UaF between futex_key_to_node_opt() and vma_replace_policy() kernel: drm/amd/display: Do not skip unrelated mode changes in DSC validation kernel: ipc: limit next_id allocation to the valid ID range kernel: mm/slab: do not limit zeroing to orig_size when only red zoning is enabled kernel: net: openvswitch: reject oversized nested action attrs

RLSA-2026:53330 — Important: kernel security, bug fix, and enhancement update

Affected: Rocky Linux:10: kernel

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

* kernel: fsnotify: Fix ordering of iput() and watched_objects decrement (CVE-2024-53143)

* kernel: shmem: fix recovery on rename failures (CVE-2025-71072)

* kernel: futex: Fix UaF between futex_key_to_node_opt() and vma_replace_policy() (CVE-2026-23415)

* kernel: drm/amd/display: Do not skip unrelated mode changes in DSC validation (CVE-2026-31488)

* kernel: ipc: limit next_id allocation to the valid ID range (CVE-2026-52923)

* kernel: mm/slab: do not limit zeroing to orig_size when only red zoning is enabled (CVE-2026-64368)

* kernel: net: openvswitch: reject oversized nested action attrs (CVE-2026-64531)

Bug Fix(es) and Enhancement(s):

* Kernel oops after increasing max number of mac addresses of a mlx5 VF [rhel-10.2.z] (JIRA:Rocky Linux-213035)

* Rocky Linux10.0 - s390/pkey: Check length in PKEY_VERIFYPROTK ioctl [rhel-10.2.z] (JIRA:Rocky Linux-222503)

* Rocky Linux10.0 - s390/pkey: Check length in pkey_pckmo handler implementation [rhel-10.2.z] (JIRA:Rocky Linux-222505)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

UBUNTU-CVE-2024-53143

Affected: Ubuntu:16.04:LTS: linux-hwe-edge, Ubuntu:18.04:LTS: linux-aws-5.0, Ubuntu:18.04:LTS: linux-aws-5.3, Ubuntu:18.04:LTS: linux-azure, Ubuntu:18.04:LTS: linux-azure-5.3, Ubuntu:18.04:LTS: linux-azure-edge, Ubuntu:18.04:LTS: linux-gcp, Ubuntu:18.04:LTS: linux-gcp-5.3, Ubuntu:18.04:LTS: linux-gke-4.15, Ubuntu:18.04:LTS: linux-gke-5.4 and 69 more

In the Linux kernel, the following vulnerability has been resolved: fsnotify: Fix ordering of iput() and watched_objects decrement Ensure the superblock is kept alive until we're done with iput(). Holding a reference to an inode is not allowed unless we ensure the superblock stays alive, which fsnotify does by keeping the watched_objects count elevated, so iput() must happen before the watched_objects decrement. This can lead to a UAF of something like sb->s_fs_info in tmpfs, but the UAF is hard to hit because race orderings that oops are more likely, thanks to the CHECK_DATA_CORRUPTION() block in generic_shutdown_super(). Also, ensure that fsnotify_put_sb_watched_objects() doesn't call fsnotify_sb_watched_objects() on a superblock that may have already been freed, which would cause a UAF read of sb->s_fsnotify_info.

WID-SEC-W-2024-3635 — Linux Kernel: Schwachstelle ermöglicht Denial of Service

Ein lokaler Angreifer kann eine Schwachstelle im Linux-Kernel ausnutzen, um einen Denial-of-Service-Zustand zu erzeugen.