Red Hat Security Advisory

RHSA-2025:9491

kernel security update

Released 2025-06-24 · Red Hat rating Moderate · View on Red Hat →

Fixed in

Red Hat Enterprise Linux AppStream E4S (v.9.2) kernel-64k-debug-devel-5.14.0-284.121.1.el9_2, kernel-64k-debug-devel-matched-5.14.0-284.121.1.el9_2, kernel-64k-devel-5.14.0-284.121.1.el9_2 +10
Red Hat Enterprise Linux BaseOS E4S (v.9.2) bpftool-7.0.0-284.121.1.el9_2, kernel-5.14.0-284.121.1.el9_2, kernel-64k-5.14.0-284.121.1.el9_2 +29

Fixes 1 record

TI-2025-15716 CVE-2025-21764 · GHSA-j8mq-pfgm-36r2

ndisc: use RCU protection in ndisc_alloc_skb()

LOW 36

In the Linux kernel, the following vulnerability has been resolved: ndisc: use RCU protection in ndisc_alloc_skb() ndisc_alloc_skb() can be called without RTNL or RCU being held.

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00271 Published 2025-02-27 Partial fix · 5.4.291, 5.10.235 +6 CWE-416