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ALSA-2026:0453 — Important: kernel security update

Affected: AlmaLinux:10: kernel-abi-stablelists, AlmaLinux:10: kernel-doc

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

Security Fix(es):

* kernel: HID: multitouch: fix slab out-of-bounds access in mt_report_fixup() (CVE-2025-39806) * kernel: audit: fix out-of-bounds read in audit_compare_dname_path() (CVE-2025-39840) * kernel: mm: slub: avoid wake up kswapd in set_track_prepare (CVE-2025-39843) * kernel: net: phylink: add lock for serializing concurrent pl->phydev writes with resolver (CVE-2025-39905) * kernel: iommufd: Fix race during abort for file descriptors (CVE-2025-39966) * kernel: tls: wait for pending async decryptions if tls_strp_msg_hold fails (CVE-2025-40176) * kernel: sctp: avoid NULL dereference when chunk data buffer is missing (CVE-2025-40240) * kernel: drm/vmwgfx: Validate command header size against SVGA_CMD_MAX_DATASIZE (CVE-2025-40277) * kernel: usb: dwc3: Fix race condition between concurrent dwc3_remove_requests() call paths (CVE-2025-68287)

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:2026-10426

BELL-CVE-2025-40277

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

certfr-2025-avi-1082 — De multiples vulnérabilités ont été découvertes dans les produits Microsoft. Elles permettent à un attaquant de provoqu…

certfr-2025-avi-1082

EUVD-2026-347406

fkie_cve-2025-40277

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

drm/vmwgfx: Validate command header size against SVGA_CMD_MAX_DATASIZE

This data originates from userspace and is used in buffer offset calculations which could potentially overflow causing an out-of-bounds access.

GHSA-6jjc-g279-fq4c

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

drm/vmwgfx: Validate command header size against SVGA_CMD_MAX_DATASIZE

This data originates from userspace and is used in buffer offset calculations which could potentially overflow causing an out-of-bounds access.

msrc_CVE-2025-40277 — drm/vmwgfx: Validate command header size against SVGA_CMD_MAX_DATASIZE

msrc_CVE-2025-40277

OESA-2026-1759 — kernel security update

Affected: openEuler:24.03-LTS: kernel

The Linux Kernel, the operating system core itself. Security Fix(es):

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

iommu/s390: Implement blocking domain

This fixes a crash when surprise hot-unplugging a PCI device. This crash happens because during hot-unplug __iommu_group_set_domain_nofail() attaching the default domain fails when the platform no longer recognizes the device as it has already been removed and we end up with a NULL domain pointer and UAF. This is exactly the case referred to in the second comment in __iommu_device_set_domain() and just as stated there if we can instead attach the blocking domain the UAF is prevented as this can handle the already removed device. Implement the blocking domain to use this handling. With this change, the crash is fixed but we still hit a warning attempting to change DMA ownership on a blocked device.(CVE-2024-53232)

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

iommu: Fix two issues in iommu_copy_struct_from_user()

In the review for iommu_copy_struct_to_user() helper, Matt pointed out that a NULL pointer should be rejected prior to dereferencing it: https://lore.kernel.org/all/(CVE-2025-37900)

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

smb: client: Avoid race in open_cached_dir with lease breaks

A pre-existing valid cfid returned from find_or_create_cached_dir might race with a lease break, meaning open_cached_dir doesn't consider it valid,…

openSUSE-SU-2026:20145-1 — Security update for the Linux Kernel

Security update for the Linux Kernel

RHSA-2026:0917 — Red Hat Security Advisory: kernel security update

kernel: Linux kernel: iommufd/iova_bitmap shift-out-of-bounds vulnerability kernel: KVM: arm64: Tear down vGIC on failed vCPU creation kernel: Linux kernel: ALSA: ump buffer overflow via malformed UMP SysEx message kernel: ASoC: Intel: bytcr_rt5640: Fix invalid quirk input mapping kernel: drm/vmwgfx: Validate command header size against SVGA_CMD_MAX_DATASIZE

SUSE-SU-2026:0263-1 — Security update for the Linux Kernel

Security update for the Linux Kernel

UBUNTU-CVE-2025-40277

Affected: 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, Ubuntu:16.04:LTS: linux-hwe-edge and 227 more

In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: Validate command header size against SVGA_CMD_MAX_DATASIZE This data originates from userspace and is used in buffer offset calculations which could potentially overflow causing an out-of-bounds access.

WID-SEC-W-2025-2756 — Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service

Ein Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um einen Denial-of-Service-Zustand zu erzeugen oder weitere, nicht spezifizierte Auswirkungen zu erlangen.