CVE-2026-23169 | BDVDB-2026-315484 Detail
LinuxLinux
Description#
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.
Impact#
Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: local.
Weaknesses#
No weakness recorded in the source data.
References#
- https://git.kernel.org/stable/c/338d40bab283da2639780ee3e458fb61f1567d8c
- https://git.kernel.org/stable/c/7896dbe990d56d5bb8097863b2645355633665eb
- https://git.kernel.org/stable/c/455e882192c9833f176f3fbbbb2f036b6c5bf555
- https://git.kernel.org/stable/c/51223bdd0f60b06cfc7f25885c4d4be917adba94
- https://git.kernel.org/stable/c/1f1b9523527df02685dde603f20ff6e603d8e4a1
- https://git.kernel.org/stable/c/e2a9eeb69f7d4ca4cf4c70463af77664fdb6ab1d
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.