RHSA-2026:36645 — Security Advisory

Red Hat Security Advisory: kernel update

Loading…

Severity

Important

Red Hat Product Security

RHEL 9

Products

Official CSAF product identity

Published · July 8, 2026

Updated · October 31, 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: eventpoll: defer struct eventpoll free to RCU grace period (CVE-2026-43074)
kernel: eventpoll: fix ep_remove struct eventpoll / struct file UAF (CVE-2026-46242)
kernel: Linux kernel: netfilter: ebtables SNAT target writes to shared memory pages during ARP hardware address rewrite (CVE-2026-53266)

Bug Fix(es) and Enhancement(s):

kernel: Linux kernel: netfilter: ebtables SNAT target writes to shared memory pages during ARP hardware address rewrite [rhel-9.8.z] (JIRA:RHEL-182344)
[RHEL 9] Bonding reports unknown speed/duplex for tg3 interface [rhel-9.8.z] (JIRA:RHEL-182768)

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.