CVEvulnerability
CVE-2026-72243
8.4 HIGH
Official page ↗
- Status
- Received
- Published
- 2026-08-15
- Last modified
- 2026-10-16
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
- 8.4 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
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.
References
- https://git.kernel.org/stable/c/11406d0d7e11b4e525bb2ace2c70107031d058da git.kernel.org
- https://git.kernel.org/stable/c/44c74d27d1b9aaa99fa8a83640c1223575262b80 git.kernel.org
- https://git.kernel.org/stable/c/646ebbc5f2ff9147d084e1213143f091026a611c git.kernel.org
- https://git.kernel.org/stable/c/d028bc080a0dcd6a7f8e1ae1bd32dda696505ba3 git.kernel.org
- https://git.kernel.org/stable/c/e507633bf76bccf1a6af27771fb0d6e2862b7eac git.kernel.org
- https://git.kernel.org/stable/c/fc633a598206d4f23af782db7c0b5f3a82751d2c git.kernel.org