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ALSA-2026:71700 — Important: kernel security, bug fix, and enhancement update

Affected: AlmaLinux:9: kernel, AlmaLinux:9: kernel-64k, AlmaLinux:9: kernel-64k-core, AlmaLinux:9: kernel-64k-debug, AlmaLinux:9: kernel-64k-debug-core, AlmaLinux:9: kernel-64k-debug-devel, AlmaLinux:9: kernel-64k-debug-devel-matched, AlmaLinux:9: kernel-64k-debug-modules, AlmaLinux:9: kernel-64k-debug-modules-core, AlmaLinux:9: kernel-64k-debug-modules-extra and 64 more

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

Security Fix(es):

* kernel: fbcon: Set fb_display[i]->mode to NULL when the mode is released (CVE-2025-40323) * kernel: smb: smbdirect: introduce smbdirect_socket.recv_io.credits.available (CVE-2026-31539) * kernel: drm/amdgpu/vcn3: Prevent OOB reads when parsing dec msg (CVE-2026-46230) * kernel: drm/amdgpu/vcn4: Prevent OOB reads when parsing IB (CVE-2026-46204) * kernel: drm/amdgpu/vcn4: Prevent OOB reads when parsing dec msg (CVE-2026-46199) * kernel: drm/amdgpu/userq: fix access to stale wptr mapping (CVE-2026-46311) * kernel: netfilter: nf_queue: hold bridge skb->dev while queued (CVE-2026-52912) * kernel: accel/ivpu: Add buffer overflow check in MS get_info_ioctl (CVE-2026-53203) * kernel: drm/xe/eustall: Fix drm_dev_put called before stream disable in close (CVE-2026-53290) * kernel: drm/virtio: use uninterruptible resv lock for plane updates (CVE-2026-64098) * kernel: Linux kernel: PPPoE memory corruption via stale pointer (CVE-2026-68121) * kernel: drm/amdgpu/vce: fix integer overflow in image size (CVE-2026-68108) * kernel: drm/amdkfd: fix 32-bit overflow in CWSR total size calculation (CVE-2026-68257) * kernel: drm/xe/rtp: Add RING_FORCE_TO_NONPRIV_DENY to OA whitelists (CVE-2026-68267) * kernel: drm/xe: Hold a dma-buf reference for imported BOs (CVE-2026-68266) * kernel: drm/amdgpu: Fix context pstate override handling (CVE-2026-68273) *…

BELL-CVE-2026-68257

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

certfr-2026-avi-1069 — De multiples vulnérabilités ont été découvertes dans le noyau Linux de Debian LTS. Elles permettent à un attaquant de p…

certfr-2026-avi-1069

EUVD-2026-354817

fkie_cve-2026-68257

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

drm/amdkfd: fix 32-bit overflow in CWSR total size calculation

total_cwsr_size was computed in 32-bit before being used as a BO/SVM allocation size. With large ctx_save_restore_area_size and debug_memory_size multiplied by the XCC count, the product can wrap, yielding an undersized CWSR save area that firmware later overruns.

Promote total_cwsr_size to u64 and use check_add_overflow()/ check_mul_overflow() in both kfd_queue_acquire_buffers() and kfd_queue_release_buffers().

(cherry picked from commit 319f7e13423ae3f486b9aea82f9ad2d6af0ee608)

GHSA-rqrw-7v4f-gfw3

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

drm/amdkfd: fix 32-bit overflow in CWSR total size calculation

Promote total_cwsr_size to u64 and use check_add_overflow()/ check_mul_overflow() in both kfd_queue_acquire_buffers() and kfd_queue_release_buffers().

(cherry picked from commit 319f7e13423ae3f486b9aea82f9ad2d6af0ee608)

msrc_CVE-2026-68257 — drm/amdkfd: fix 32-bit overflow in CWSR total size calculation

msrc_CVE-2026-68257

openSUSE-SU-2026:21910-1 — Security update for the Linux Kernel

Security update for the Linux Kernel

RHSA-2026:71602 — Red Hat Security Advisory: kernel security, bug fix, and enhancement update

kernel: fbcon: Set fb_display[i]->mode to NULL when the mode is released kernel: libceph: fix potential use-after-free in have_mon_and_osd_map() kernel: libceph: make decode_pool() more resilient against corrupted osdmaps kernel: libceph: prevent potential out-of-bounds reads in handle_auth_done() kernel: libceph: replace overzealous BUG_ON in osdmap_apply_incremental() kernel: Linux kernel: Denial of Service in libceph OSD client due to unreset sparse-read state kernel: drm/amdgpu/vcn4: Prevent OOB reads when parsing dec msg kernel: drm/amdgpu/vcn4: Prevent OOB reads when parsing IB kernel: drm/amdgpu/vcn3: Prevent OOB reads when parsing dec msg kernel: drm/amdgpu/userq: fix access to stale wptr mapping kernel: af_unix: Drop all SCM attributes for SOCKMAP kernel: accel/ivpu: Add buffer overflow check in MS get_info_ioctl kernel: drm/xe/eustall: Fix drm_dev_put called before stream disable in close kernel: drm/virtio: use uninterruptible resv lock for plane updates kernel: drm/amdgpu/vce: fix integer overflow in image size kernel: pppoe: reload header pointer after dev_hard_header() kernel: drm/amdkfd: fix 32-bit overflow in CWSR total size calculation kernel: drm/xe: Hold a dma-buf reference for imported BOs kernel: drm/xe/rtp: Add RING_FORCE_TO_NONPRIV_DENY to OA whitelists kernel: drm/amdgpu: Fix context pstate override handling kernel: ipvs: do not propagate one-packet flag to synced conns kernel: nvme-tcp: fix host memory disclosure on R2T for a read command

RLSA-2026:71602 — 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: fbcon: Set fb_display[i]->mode to NULL when the mode is released (CVE-2025-40323)

* kernel: libceph: fix potential use-after-free in have_mon_and_osd_map() (CVE-2025-68285)

* kernel: libceph: make decode_pool() more resilient against corrupted osdmaps (CVE-2025-71116)

* kernel: libceph: prevent potential out-of-bounds reads in handle_auth_done() (CVE-2026-22984)

* kernel: libceph: replace overzealous BUG_ON in osdmap_apply_incremental() (CVE-2026-22990)

* kernel: Linux kernel: Denial of Service in libceph OSD client due to unreset sparse-read state (CVE-2026-23136)

* kernel: drm/amdgpu/vcn3: Prevent OOB reads when parsing dec msg (CVE-2026-46230)

* kernel: drm/amdgpu/vcn4: Prevent OOB reads when parsing IB (CVE-2026-46204)

* kernel: drm/amdgpu/vcn4: Prevent OOB reads when parsing dec msg (CVE-2026-46199)

* kernel: drm/amdgpu/userq: fix access to stale wptr mapping (CVE-2026-46311)

* kernel: af_unix: Drop all SCM attributes for SOCKMAP (CVE-2026-53005)

* kernel: accel/ivpu: Add buffer overflow check in MS get_info_ioctl (CVE-2026-53203)

* kernel: drm/xe/eustall: Fix drm_dev_put called before stream disable in close (CVE-2026-53290)

* kernel: drm/virtio: use uninterruptible resv lock for plane updates (CVE-2026-64098)

* kernel: Linux kernel: PPPoE memory corruption via stale pointer (CVE-2026-68121)

* kernel: drm/amdgpu/vce: fix integer overflow in…

SUSE-SU-2026:23881-1 — Security update for the Linux Kernel

Security update for the Linux Kernel

UBUNTU-CVE-2026-68257

Affected: Ubuntu:Pro:14.04:LTS: linux, Ubuntu:Pro:14.04:LTS: linux-aws, Ubuntu:Pro:14.04:LTS: linux-azure, Ubuntu:Pro:14.04:LTS: linux-lts-xenial, Ubuntu:Pro:16.04:LTS: linux, Ubuntu:Pro:16.04:LTS: linux-aws, Ubuntu:Pro:16.04:LTS: linux-aws-hwe, Ubuntu:Pro:16.04:LTS: linux-azure, Ubuntu:Pro:16.04:LTS: linux-gcp, Ubuntu:Pro:16.04:LTS: linux-hwe and 246 more

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: fix 32-bit overflow in CWSR total size calculation total_cwsr_size was computed in 32-bit before being used as a BO/SVM allocation size. With large ctx_save_restore_area_size and debug_memory_size multiplied by the XCC count, the product can wrap, yielding an undersized CWSR save area that firmware later overruns. Promote total_cwsr_size to u64 and use check_add_overflow()/ check_mul_overflow() in both kfd_queue_acquire_buffers() and kfd_queue_release_buffers(). (cherry picked from commit 319f7e13423ae3f486b9aea82f9ad2d6af0ee608)

WID-SEC-W-2026-2730 — Linux Kernel: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen, darunter möglicherweise die Ausführung von beliebigem Code, die Ausweitung von Berechtigungen, die Offenlegung von Informationen, die Manipulation von Daten oder Denial-of-Service-Zustände.