CVE-2026-46137

mptcp: pm: ADD_ADDR rtx: fix potential data-race

CVSS 9.8 CRITICALEPSS 0.4%

Vexday Risk Score

28Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 9.8EPSS 0.4%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

28 May 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

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

Affected products

Linux · Linux

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References

https://git.kernel.org/stable/c/013dcdc1961543b9a3433466bc8c79a2f4ca75b5 https://git.kernel.org/stable/c/23079e0b7742ec114d3507c3e3aad01b7b69e4af 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/b35605e1f1e877038c8c9d499babbc891cdd234f https://git.kernel.org/stable/c/cc3c0399361efaaf7ae64262eb3f70829b1189c6 https://git.kernel.org/stable/c/d9b272a85fe6b8f993e37915311e4038c814a533