AlmaLinux alert ALSA-2026:6036 (kernel-rt)

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[Announce]  [Security Advisory] ALSA-2026:6036: kernel-rt security update (Moderate)
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Mon, 30 Mar 2026 14:03:21 +0000
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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: Moderate
Release date: 2026-03-30

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: Use-After-Free vulnerability in ATM subsystem (CVE-2025-38180)
  * kernel: macvlan: fix error recovery in macvlan_common_newlink() (CVE-2026-23209)
  * kernel: net/sched: cls_u32: use skb_header_pointer_careful() (CVE-2026-23204)


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-2026-6036.html

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AlmaLinux Team
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