Skip to content
OpenAdvisories
High ALSA-2025:15447 5 CVEs

Important: kernel security update

Published Sep 8, 2025 · Updated Nov 5, 2026

Ecosystem: AlmaLinux

Summary

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

Security Fix(es):

* kernel: drm/vkms: Fix use after free and double free on init error (CVE-2025-22097)
* kernel: udmabuf: fix a buf size overflow issue during udmabuf creation (CVE-2025-37803)
* kernel: net/sched: Always pass notifications when child class becomes empty (CVE-2025-38350)
* kernel: drm/gem: Acquire references on GEM handles for framebuffers (CVE-2025-38449)

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.

Fixed packages 2

ReleasePackageFixed in
AlmaLinux · 10 kernel-abi-stablelists 6.12.0-55.31.1.el10_0
AlmaLinux · 10 kernel-doc 6.12.0-55.31.1.el10_0

Vulnerabilities 5

  • High 7.8
    CVE-2025-22097

    drm/vkms: Fix use after free and double free on init error

    In the Linux kernel, the following vulnerability has been resolved: drm/vkms: Fix use after free and double free on init error If the driver initialization fails, the vkms_exit() function might access an uninitialized or freed default_config pointer and it mi…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • High 7.8
    CVE-2025-37803

    udmabuf: fix a buf size overflow issue during udmabuf creation

    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.

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  • High 7.8
    CVE-2025-38350

    net/sched: Always pass notifications when child class becomes empty

    In the Linux kernel, the following vulnerability has been resolved: net/sched: Always pass notifications when child class becomes empty Certain classful qdiscs may invoke their classes' dequeue handler on an enqueue operation. This may unexpectedly empty the …

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • High 7.8
    CVE-2025-38449

    drm/gem: Acquire references on GEM handles for framebuffers

    In the Linux kernel, the following vulnerability has been resolved: drm/gem: Acquire references on GEM handles for framebuffers A GEM handle can be released while the GEM buffer object is attached to a DRM framebuffer. This leads to the release of the dma-buf…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • Unscored —
    CVE-2025-38684

    net/sched: ets: use old 'nbands' while purging unused classes

    In the Linux kernel, the following vulnerability has been resolved: net/sched: ets: use old 'nbands' while purging unused classes Shuang reported sch_ets test-case [1] crashing in ets_class_qlen_notify() after recent changes from Lion [2]. The problem is: in …

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu

References

  • report
    https://access.redhat.com/security/cve/CVE-2025-22097
  • report
    https://access.redhat.com/security/cve/CVE-2025-37803
  • report
    https://access.redhat.com/security/cve/CVE-2025-38350
  • report
    https://access.redhat.com/security/cve/CVE-2025-38449
  • report
    https://bugzilla.redhat.com/2360223
  • report
    https://bugzilla.redhat.com/2365013
  • report
    https://bugzilla.redhat.com/2382054
  • report
    https://bugzilla.redhat.com/2383519
  • advisory
    https://errata.almalinux.org/10/ALSA-2025-15447.html
  • report
    https://www.redhat.com/security/data/cve/CVE-2025-38684.html