CVE-2026-72243

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description SELinux failed to verify connect-related permissions when TCP Fast Open was utilized. This occurred because the system was not updated to ensure these checks were performed during the introduction of TCP Fast Open support. The issue involves the socket sendmsg() hook, which needs to call selinux socket connect() when the MSG FASTOPEN flag is passed.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.