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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-2026-68273

Affected: Alpaquita:23: linux-lts, Alpaquita:25: linux-lts, Alpaquita:stream: linux-lts

certfr-2026-avi-1090 — De multiples vulnérabilités ont été découvertes dans le noyau Linux de Debian. Elles permettent à un attaquant de provo…

certfr-2026-avi-1090

EUVD-2026-353533

fkie_cve-2026-68273

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

drm/amdgpu: Fix context pstate override handling

There are several problems in the context pstate handling code.

The most serious ones are potential use-after-free and NULL pointer dereferences at context initialization time. Both are due amdgpu_ctx_init() not holding the adev->pm.stable_pstate_ctx_lock, which is otherwise used from both sysfs and the context code itself for modifying and clearing the stored context pointer.

Second issue is that context fini can trample over the pstate configuration set via sysfs. This is due the restore state (ctx->stable_pstate) being saved at context init time, and not if, or when the context actually changes the pstate. As the context exits it will therefore incorrectly restore to what was set before the sysfs override was requested.

The simplest fix is to drastically simplify how the state is tracked, by clearly defining the points at which pstate ownership is taken and released, and to handle all transitions under the correct lock.

Instead of at context init time, the previous state is saved only at the point the context overrides the current state, and is restored on context exit only if the context is still the owner of the current override state.

(cherry picked from commit 1b5e413713c0a93bc1818394d0ce49aaad21bd27)

GHSA-vqhc-jp86-9g52

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

drm/amdgpu: Fix context pstate override handling

There are several problems in the context pstate handling code.

(cherry picked from commit 1b5e413713c0a93bc1818394d0ce49aaad21bd27)

msrc_CVE-2026-68273 — drm/amdgpu: Fix context pstate override handling

msrc_CVE-2026-68273

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-2026-68273

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 154 more

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Fix context pstate override handling There are several problems in the context pstate handling code. The most serious ones are potential use-after-free and NULL pointer dereferences at context initialization time. Both are due amdgpu_ctx_init() not holding the adev->pm.stable_pstate_ctx_lock, which is otherwise used from both sysfs and the context code itself for modifying and clearing the stored context pointer. Second issue is that context fini can trample over the pstate configuration set via sysfs. This is due the restore state (ctx->stable_pstate) being saved at context init time, and not if, or when the context actually changes the pstate. As the context exits it will therefore incorrectly restore to what was set before the sysfs override was requested. The simplest fix is to drastically simplify how the state is tracked, by clearly defining the points at which pstate ownership is taken and released, and to handle all transitions under the correct lock. Instead of at context init time, the previous state is saved only at the point the context overrides the current state, and is restored on context exit only if the context is still the owner of the current override state. (cherry picked from commit 1b5e413713c0a93bc1818394d0ce49aaad21bd27)

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.