CVE-2026-46168 | Linux Kernel up to 7.1-rc1 mptcp lock_sock_fast privilege escalation
A vulnerability, which was classified as critical, has been found in Linux Kernel up to 6.6.139/6.12.87/6.18.29/7.0.6/7.1-rc1. This issue affects the function lock_sock_fast of the component mptcp. The manipulation leads to privilege escalation.
This vulnerability is traded as CVE-2026-46168. Access to the local network is required for this attack to succeed. There is no exploit available.
It is advisable to upgrade the affected component.