CVE-2026-72243
Description
In the Linux kernel, the following vulnerability has been resolved: selinux: check connect-related permissions on TCP Fast Open Similar to Landlock, SELinux was not updated when TCP Fast Open support was introduced to ensure connect-related permissions are checked when using TCP Fast Open. Update its socket_sendmsg() hook to call selinux_socket_connect() when MSG_FASTOPEN is passed.
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/11406d0d7e11b4e525bb2ace2c70107031d058da
- https://git.kernel.org/stable/c/44c74d27d1b9aaa99fa8a83640c1223575262b80
- https://git.kernel.org/stable/c/646ebbc5f2ff9147d084e1213143f091026a611c
- https://git.kernel.org/stable/c/d028bc080a0dcd6a7f8e1ae1bd32dda696505ba3
- https://git.kernel.org/stable/c/e507633bf76bccf1a6af27771fb0d6e2862b7eac
- https://git.kernel.org/stable/c/fc633a598206d4f23af782db7c0b5f3a82751d2c
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.