RHSA-2026:92062 — Security Advisory
Red Hat Security Advisory: kpatch-patch-4_18_0-553_109_1, kpatch-patch-4_18_0-553_125_1, kpatch-patch-4_18_0-553_158_1, kpatch-patch-4_18_0-553_72_1, and kpatch-patch-4_18_0-553_85_1 security update
Severity
ImportantRed Hat Product Security
Products
Official CSAF product identity
Published · October 29, 2026
Updated · November 3, 2026
Topic
An update for multiple packages 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
This is a kernel live patch module which can be loaded by the kpatch command line utility to modify the code of a running kernel. This patch module is targeted for kernel-4.18.0-553.109.1.el8_10.
Security Fix(es):
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kernel: netfilter: ebtables SNAT target writes to shared memory pages during ARP hardware address rewrite (CVE-2026-53266)
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kernel: pppoe: reload header pointer after dev_hard_header() (CVE-2026-68121)
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kernel: net: bridge: stop fast-leave after deleting a port group (CVE-2026-74480)
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kernel: packet: use consistent hard_header_len in non-ring send paths (CVE-2026-74582)
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kernel: xfrm: ah6: validate routing header segments_left (CVE-2026-80844)
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.