RHSA-2026:71330 — Security Advisory

Red Hat Security Advisory: kernel-rt security update

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Severity

Important

Red Hat Product Security

RHEL 8

Products

Official CSAF product identity

Published · September 24, 2026

Updated · November 4, 2026

Topic

An update for kernel-rt is now available for Red Hat Enterprise Linux 8.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

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: drm/amdgpu: Fix fence put before wait in amdgpu_amdkfd_submit_ib (CVE-2026-31566)
kernel: netfilter: nf_queue: hold bridge skb->dev while queued (CVE-2026-52912)
kernel: Linux kernel: PPPoE memory corruption via stale pointer (CVE-2026-68121)
kernel: Linux kernel IPVS: Denial of Service due to stale memory references (CVE-2026-80714)
kernel: nvme-tcp: reject a read that transferred too few bytes (CVE-2026-89480)

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.