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Medium RLSA-2025:21926 1 CVE

Moderate: kernel security update

Published Nov 28, 2025 · Updated Nov 28, 2025

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 1

ReleasePackageFixed in
Rocky Linux · 9 kernel 0:5.14.0-611.9.1.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://bugzilla.redhat.com/show_bug.cgi?id=2396941