CVE-2026-46158None▾ SunlitIn the Linux kernel, the following vulnerability has been resolved: mptcp: pm: ADD_ADDR rtx: always decrease sk refcount When an ADD_ADDR is retransmitted, the sk is held in sk_reset_timer(). It should then be released in all cases at …
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Sep 14.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.1%
0.1% → 0.2%
In the Linux kernel, the following vulnerability has been resolved:
mptcp: pm: ADD_ADDR rtx: always decrease sk refcount
When an ADD_ADDR is retransmitted, the sk is held in sk_reset_timer(). It should then be released in all cases at the end.
Some (unlikely) checks were returning directly instead of calling sock_put() to decrease the refcount. Jump to a new 'exit' label to call __sock_put() (which will become sock_put() in the next commit) to fix this potential leak.
While at it, drop the '!msk' check which cannot happen because it is never reset, and explicitly mark the remaining one as "unlikely".
Linux >= 00cfd77b9063dcdf3628a7087faba60de85a9cc8 < f5555a6d7c472849fdf2b426e3d0a85103118793Linux >= 00cfd77b9063dcdf3628a7087faba60de85a9cc8 < e9ba34301d2e90f63f97c76ad9eb98e5250fe961Linux >= 00cfd77b9063dcdf3628a7087faba60de85a9cc8 < 81d8142148164176385c279c7c1e1d581867423dLinux >= 00cfd77b9063dcdf3628a7087faba60de85a9cc8 < 9426265e157dd77ec237c795901ed4dea6d69b5cLinux >= 00cfd77b9063dcdf3628a7087faba60de85a9cc8 < b41dd76f3b9735096c21d3e799a2b9fe36498d57Linux >= 00cfd77b9063dcdf3628a7087faba60de85a9cc8 < acd3d3562315c99f3c0db16f0fcc5f0306638982Linux >= 00cfd77b9063dcdf3628a7087faba60de85a9cc8 < 25e37407442b8766ec2cf52fb4e31b5c3d3aeeaeLinux >= 00cfd77b9063dcdf3628a7087faba60de85a9cc8 < 9634cb35af17019baec21ca648516ce376fa10e6Linux 5.10Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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