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ALSA-2025:15429 — Important: kernel security 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 66 more

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

Security Fix(es):

* kernel: udmabuf: fix a buf size overflow issue during udmabuf creation (CVE-2025-37803) * kernel: idpf: convert control queue mutex to a spinlock (CVE-2025-38392)

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:2025-10604

BELL-CVE-2025-37803

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

certfr-2025-avi-0463 — De multiples vulnérabilités ont été découvertes dans le noyau Linux de Debian LTS. Elles permettent à un attaquant de p…

certfr-2025-avi-0463

EUVD-2026-314249

fkie_cve-2025-37803

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

udmabuf: fix a buf size overflow issue during udmabuf creation

by casting size_limit_mb to u64 when calculate pglimit.

GHSA-42fq-x79v-5vv5

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

udmabuf: fix a buf size overflow issue during udmabuf creation

by casting size_limit_mb to u64 when calculate pglimit.

msrc_CVE-2025-37803 — udmabuf: fix a buf size overflow issue during udmabuf creation

msrc_CVE-2025-37803

RHSA-2025:11571 — Red Hat Security Advisory: kernel security update

kernel: net: atm: fix use after free in lec_send() kernel: ibmvnic: Use kernel helpers for hex dumps kernel: ext4: fix out-of-bound read in ext4_xattr_inode_dec_ref_all() kernel: ext4: fix off-by-one error in do_split kernel: udmabuf: fix a buf size overflow issue during udmabuf creation

RHSA-2025:15429 — Red Hat Security Advisory: kernel security update

kernel: udmabuf: fix a buf size overflow issue during udmabuf creation kernel: idpf: convert control queue mutex to a spinlock kernel: smb: client: fix race with concurrent opens in rename(2)

SUSE-SU-2025:01919-1 — Security update for the Linux Kernel

Security update for the Linux Kernel

UBUNTU-CVE-2025-37803

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: udmabuf: fix a buf size overflow issue during udmabuf creation by casting size_limit_mb to u64 when calculate pglimit.

WID-SEC-W-2025-0975 — Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service

Ein Angreifer kann mehrere Schwachstellen in Linux Kernel ausnutzen, um einen Denial of Service Angriff oder einen unspezifischen Angriff durchzuführen.