NULL Pointer Dereference Affecting kernel-rt-modules-extra package, versions <0:6.12.0-211.52.1.el10_2


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.12% (3rd percentile)

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  • Snyk IDSNYK-RHEL10-KERNELRTMODULESEXTRA-19652066
  • published9 Sept 2026
  • disclosed3 Apr 2026

Introduced: 3 Apr 2026

CVE-2026-23442  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade RHEL:10 kernel-rt-modules-extra to version 0:6.12.0-211.52.1.el10_2 or higher.
This issue was patched in RHSA-2026:64775.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-modules-extra package and not the kernel-rt-modules-extra package as distributed by RHEL. See How to fix? for RHEL:10 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

ipv6: add NULL checks for idev in SRv6 paths

__in6_dev_get() can return NULL when the device has no IPv6 configuration (e.g. MTU < IPV6_MIN_MTU or after NETDEV_UNREGISTER).

Add NULL checks for idev returned by __in6_dev_get() in both seg6_hmac_validate_skb() and ipv6_srh_rcv() to prevent potential NULL pointer dereferences.

CVSS Base Scores

version 3.1