AlmaLinux alert ALSA-2026:19664 (kernel-rt)

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[Announce]  [Security Advisory] ALSA-2026:19664: kernel-rt security update (Important)
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Thu, 21 May 2026 09:03:22 +0000
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<0100019e49c671be-b7aa6d1a-3039-43e5-8ca7-938b831d89fe-000000@email.amazonses.com>
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Article
Hi,

You are receiving an AlmaLinux Security update email because you subscribed to receive errata
notifications from AlmaLinux.

AlmaLinux: 8
Type: Security
Severity: Important
Release date: 2026-05-20

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: "Fragnesia" is a variant of Dirty Frag vulnerability in the ESP/XFRM leading to Local
Privilege Escalation (LPE) vulnerability in the Linux kernel (CVE-2026-46300)
  * kernel: Read root-owned files as an unprivileged user (CVE-2026-46333)


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.


Full details, updated packages, references, and other related information:
https://errata.almalinux.org/8/ALSA-2026-19664.html

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AlmaLinux Team
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