Race Condition The advisory has been revoked - it doesn't affect any version of package kernel-headers (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL10-KERNELHEADERS-15303157
- published17 Feb 2026
- disclosed14 Feb 2026
Introduced: 14 Feb 2026
CVE-2026-23169 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-headers package and not the kernel-headers package as distributed by RHEL.
In the Linux kernel, the following vulnerability has been resolved:
mptcp: fix race in mptcp_pm_nl_flush_addrs_doit()
syzbot and Eulgyu Kim reported crashes in mptcp_pm_nl_get_local_id() and/or mptcp_pm_nl_is_backup()
Root cause is list_splice_init() in mptcp_pm_nl_flush_addrs_doit() which is not RCU ready.
list_splice_init_rcu() can not be called here while holding pernet->lock spinlock.
Many thanks to Eulgyu Kim for providing a repro and testing our patches.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2439885
- https://access.redhat.com/security/cve/CVE-2026-23169
- https://git.kernel.org/stable/c/1f1b9523527df02685dde603f20ff6e603d8e4a1
- https://git.kernel.org/stable/c/338d40bab283da2639780ee3e458fb61f1567d8c
- https://git.kernel.org/stable/c/455e882192c9833f176f3fbbbb2f036b6c5bf555
- https://git.kernel.org/stable/c/51223bdd0f60b06cfc7f25885c4d4be917adba94
- https://git.kernel.org/stable/c/7896dbe990d56d5bb8097863b2645355633665eb
- https://git.kernel.org/stable/c/e2a9eeb69f7d4ca4cf4c70463af77664fdb6ab1d