Skip to content
OpenAdvisories
Medium ALSA-2026:3463 1 CVE

Moderate: kernel-rt security update

Published Mar 2, 2026 · Updated Oct 29, 2026

Summary

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):

* kernel: Linux kernel: Denial of Service due to a deadlock in hugetlb folio migration (CVE-2026-23097)

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 10

ReleasePackageFixed in
AlmaLinux · 8 kernel-rt 4.18.0-553.109.1.rt7.450.el8_10
AlmaLinux · 8 kernel-rt-core 4.18.0-553.109.1.rt7.450.el8_10
AlmaLinux · 8 kernel-rt-debug 4.18.0-553.109.1.rt7.450.el8_10
AlmaLinux · 8 kernel-rt-debug-core 4.18.0-553.109.1.rt7.450.el8_10
AlmaLinux · 8 kernel-rt-debug-devel 4.18.0-553.109.1.rt7.450.el8_10
AlmaLinux · 8 kernel-rt-debug-modules 4.18.0-553.109.1.rt7.450.el8_10
AlmaLinux · 8 kernel-rt-debug-modules-extra 4.18.0-553.109.1.rt7.450.el8_10
AlmaLinux · 8 kernel-rt-devel 4.18.0-553.109.1.rt7.450.el8_10
AlmaLinux · 8 kernel-rt-modules 4.18.0-553.109.1.rt7.450.el8_10
AlmaLinux · 8 kernel-rt-modules-extra 4.18.0-553.109.1.rt7.450.el8_10

Vulnerabilities 1

  • Unscored —

    migrate: correct lock ordering for hugetlb file folios

    In the Linux kernel, the following vulnerability has been resolved: migrate: correct lock ordering for hugetlb file folios Syzbot has found a deadlock (analyzed by Lance Yang): 1) Task (5749): Holds folio_lock, then tries to acquire i_mmap_rwsem(read lock). 2…

References

  • report
    https://access.redhat.com/security/cve/CVE-2026-23097
  • report
    https://bugzilla.redhat.com/2436802
  • advisory
    https://errata.almalinux.org/8/ALSA-2026-3463.html