CVE-2026-46137

Summary

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux00cfd77b9063dcdf3628a7087faba60de85a9cc8 < d9b272a85fe6b8f993e37915311e4038c814a533affected
LinuxLinux00cfd77b9063dcdf3628a7087faba60de85a9cc8 < 23079e0b7742ec114d3507c3e3aad01b7b69e4afaffected
LinuxLinux00cfd77b9063dcdf3628a7087faba60de85a9cc8 < b35605e1f1e877038c8c9d499babbc891cdd234faffected
LinuxLinux00cfd77b9063dcdf3628a7087faba60de85a9cc8 < 013dcdc1961543b9a3433466bc8c79a2f4ca75b5affected
LinuxLinux00cfd77b9063dcdf3628a7087faba60de85a9cc8 < 6e4710d7d8782cb61af29a7e7111ddfc38b9e1a3affected
LinuxLinux00cfd77b9063dcdf3628a7087faba60de85a9cc8 < 2ad56e434199ca24a812bb353667aa1c3860f513affected
LinuxLinux00cfd77b9063dcdf3628a7087faba60de85a9cc8 < cc3c0399361efaaf7ae64262eb3f70829b1189c6affected
LinuxLinux00cfd77b9063dcdf3628a7087faba60de85a9cc8 < 5cd6e0ad79d2615264f63929f8b457ad97ae550daffected
LinuxLinux5.10affected
LinuxLinux0 < 5.10unaffected
LinuxLinux5.10.259 <= 5.10.*unaffected
LinuxLinux5.15.210 <= 5.15.*unaffected
LinuxLinux6.1.176 <= 6.1.*unaffected
LinuxLinux6.6.141 <= 6.6.*unaffected
LinuxLinux6.12.91 <= 6.12.*unaffected
LinuxLinux6.18.30 <= 6.18.*unaffected
LinuxLinux7.0.7 <= 7.0.*unaffected
LinuxLinux7.1 <= *unaffected

Weaknesses

References