CVE-2026-80586
Description
In the Linux kernel, the following vulnerability has been resolved: mptcp: options: reset DSS fields in case of unexpected size A remote peer could send a malformed DSS with a wrong size, followed by another DSS or MPC + Data. In this case, the first suboption will be ignored, but leaving some fields written, which could lead to inconsistency or access uninitialized data. Explicitly reset the fields that could have been modified in case of unexpected size.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
Propose a mitigation on Community Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
References
- https://git.kernel.org/stable/c/15e35fdad7a5576bf3f1c8d688877aeb5d1b506b
- https://git.kernel.org/stable/c/b1256090816ec46011601e084be580731df58fc7
- https://git.kernel.org/stable/c/192878df582c51d440bf7b91a15f297f29f2b596
- https://git.kernel.org/stable/c/26dac5c9ffb20812b475fdf253eb04fab99cff3b
- https://git.kernel.org/stable/c/4e80eff5c1c893aca2ac1d202f0b256d2e52ecde
- https://git.kernel.org/stable/c/1fade1b2ac5b1a4948e538fae7313bea57b5ac36
- https://git.kernel.org/stable/c/27ed642a4e7e4b5df4b8522c72c457a67e052493
- https://git.kernel.org/stable/c/35772b4981f38ba8059372cde8753e8e477e98ec
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.