CVE-2026-23169

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->lockspinlock.Many thanks to Eulgyu Kim for providing a repro and testing our patches.

Risk Information

Base Score

5.6

MODERATE

Vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H

EPSS Score

Exploitation Probability

0.02

Associated Vulnerability

No records found

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234