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Medium ALSA-2025:21926 1 CVE

Moderate: kernel security update

Published Nov 24, 2025 · Updated Oct 29, 2026

Summary

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

Security Fix(es):

* kernel: mm: slub: avoid wake up kswapd in set_track_prepare (CVE-2025-39843)

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 25

ReleasePackageFixed in
AlmaLinux · 9 kernel 5.14.0-611.9.1.el9_7
AlmaLinux · 9 kernel-64k 5.14.0-611.9.1.el9_7
AlmaLinux · 9 kernel-64k-core 5.14.0-611.9.1.el9_7
AlmaLinux · 9 kernel-64k-debug 5.14.0-611.9.1.el9_7
AlmaLinux · 9 kernel-64k-debug-core 5.14.0-611.9.1.el9_7
AlmaLinux · 9 kernel-64k-debug-devel 5.14.0-611.9.1.el9_7
AlmaLinux · 9 kernel-64k-debug-devel-matched 5.14.0-611.9.1.el9_7
AlmaLinux · 9 kernel-64k-debug-modules 5.14.0-611.9.1.el9_7
AlmaLinux · 9 kernel-64k-debug-modules-extra 5.14.0-611.9.1.el9_7
AlmaLinux · 9 kernel-64k-devel 5.14.0-611.9.1.el9_7
AlmaLinux · 9 kernel-64k-devel-matched 5.14.0-611.9.1.el9_7
AlmaLinux · 9 kernel-64k-modules-extra 5.14.0-611.9.1.el9_7
AlmaLinux · 9 kernel-abi-stablelists 5.14.0-611.9.1.el9_7
AlmaLinux · 9 kernel-debug-devel 5.14.0-611.9.1.el9_7
AlmaLinux · 9 kernel-debug-devel-matched 5.14.0-611.9.1.el9_7
AlmaLinux · 9 kernel-devel 5.14.0-611.9.1.el9_7
AlmaLinux · 9 kernel-devel-matched 5.14.0-611.9.1.el9_7
AlmaLinux · 9 kernel-doc 5.14.0-611.9.1.el9_7
AlmaLinux · 9 kernel-headers 5.14.0-611.9.1.el9_7
AlmaLinux · 9 kernel-zfcpdump-devel 5.14.0-611.9.1.el9_7
AlmaLinux · 9 kernel-zfcpdump-devel-matched 5.14.0-611.9.1.el9_7
AlmaLinux · 9 perf 5.14.0-611.9.1.el9_7
AlmaLinux · 9 python3-perf 5.14.0-611.9.1.el9_7
AlmaLinux · 9 rtla 5.14.0-611.9.1.el9_7
AlmaLinux · 9 rv 5.14.0-611.9.1.el9_7

Vulnerabilities 1

  • Unscored —

    mm: slub: avoid wake up kswapd in set_track_prepare

    In the Linux kernel, the following vulnerability has been resolved: mm: slub: avoid wake up kswapd in set_track_prepare set_track_prepare() can incur lock recursion. The issue is that it is called from hrtimer_start_range_ns holding the per_cpu(hrtimer_bases)…

References

  • report
    https://access.redhat.com/security/cve/CVE-2025-39843
  • report
    https://bugzilla.redhat.com/2396941
  • advisory
    https://errata.almalinux.org/9/ALSA-2025-21926.html