RHSA-2026:45115 — Security Advisory
Red Hat Security Advisory: kernel security update
Severity
ImportantRed Hat Product Security
Products
Official CSAF product identity
Published · July 24, 2026
Updated · November 3, 2026
Topic
An update for the kernel package is now available for Red Hat Enterprise Linux 8.10 Extended Update Support.
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 packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
-
kernel: KVM: x86: Don't (re)check L1 intercepts when completing userspace I/O (CVE-2025-40026)
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kernel: xfrm single-frag length not properly limited
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kernel: dm log: fix out-of-bounds write due to region_count overflow (CVE-2026-53059)
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kernel: tipc: fix double-free in tipc_buf_append() (CVE-2026-52993)