AlmaLinux alert ALSA-2026:3110 (kernel-rt)

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[Announce]  [Security Advisory] ALSA-2026:3110: kernel-rt security update (Important)
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Tue, 24 Feb 2026 14:06:24 +0000
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<0100019c8ff8fa7a-8e7b471e-b3d7-422d-9de9-8c6e57e3c112-000000@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: 2026-02-24

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: page_pool: Fix use-after-free in page_pool_recycle_in_ring (CVE-2025-38129)
  * kernel: Linux kernel:A use-after-free in bridge multicast in br_multicast_port_ctx_init
(CVE-2025-38248)
  * kernel: smc: Fix use-after-free in __pnet_find_base_ndev() (CVE-2025-40064)
  * kernel: mlxsw: spectrum_mr: Fix use-after-free when updating multicast route stats
(CVE-2025-68800)
  * kernel: Linux kernel: Use-after-free in teql queueing discipline can lead to privilege
escalation (CVE-2026-23074)


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-2026-3110.html

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AlmaLinux Team
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