RHSA-2026:87805 — Security Advisory

Red Hat Security Advisory: kernel security, bug fix, and enhancement update

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Severity

Important

Red Hat Product Security

RHEL 9

Products

Official CSAF product identity

Published · October 22, 2026

Updated · November 4, 2026

Topic

An update for kernel is now available for Red Hat Enterprise Linux 9.

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: netlabel: Fix NULL pointer exception caused by CALIPSO on IPv4 sockets (CVE-2025-22063)
kernel: calipso: Don't call calipso functions for AF_INET sk. (CVE-2025-38147)
kernel: ALSA: hda/cs35l41: Fix firmware load work teardown (CVE-2026-64481)
kernel: ALSA: seq: close a re-opened queue timer in the destructor (CVE-2026-68202)
kernel: vmxnet3: fix BUG_ON in vmxnet3_get_hdr_len() for Geneve packets (CVE-2026-68299)
kernel: ovl: check access to copy_file_range source with src mounter creds (CVE-2026-68448)
kernel: xfs: fix exchange-range reflink flag clearing issue with INO1_WRITTEN (CVE-2026-80530)
kernel: xfs: bounds-check buffer log item's dirty bitmap (CVE-2026-80536)

Bug Fix(es) and Enhancement(s):

RTLA segfaults on freed memory access on double SIGINT [rhel-9.8.z] (JIRA:RHEL-193029)

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.