CVE-2026-46137

Description

In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: ADD_ADDR rtx: fix potential data-race This mptcp_pm_add_timer() helper is executed as a timer callback in softirq context. To avoid any data races, the socket lock needs to be held with bh_lock_sock(). If the socket is in use, retry again soon after, similar to what is done with the keepalive timer.

References

• https://git.kernel.org/stable/c/013dcdc1961543b9a3433466bc8c79a2f4ca75b5
• https://git.kernel.org/stable/c/2ad56e434199ca24a812bb353667aa1c3860f513
• https://git.kernel.org/stable/c/5cd6e0ad79d2615264f63929f8b457ad97ae550d
• https://git.kernel.org/stable/c/6e4710d7d8782cb61af29a7e7111ddfc38b9e1a3
• https://git.kernel.org/stable/c/cc3c0399361efaaf7ae64262eb3f70829b1189c6