CVE-2026-23169
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.
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.
Vendor
Product
CWE
Yayın Tarihi
2026-02-14 16:15:57
Güncelleme
2026-04-03 14:16:24
Source Identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
KEV Date Added
-
Kategoriler
Referanslar
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