CVE-2026-72243: selinux: check connect-related permissions on TCP Fast Open
Published Aug 15, 2026
·Updated
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 socketsendmsg() hook to call selinuxsocketconnect() when MSGFASTOPEN is passed.
Event History
Aug 15, 2026
CVE Published
via MITRE·05:54 AM
Data Sourced
via MITRE·05:54 AM
Description