Riskcovery

CVE-2026-72243

selinux: check connect-related permissions on TCP Fast Open

State
Published
Severity
8.4 High
Published
Aug 15, 2026
Updated
Oct 16, 2026
Reserved
Aug 9, 2026

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.18.4 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:NLinux

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • cf60af03ca4e71134206809ea892e49b92a88896 to before 11406d0d7e11b4e525bb2ace2c70107031d058daAffected
  • cf60af03ca4e71134206809ea892e49b92a88896 to before e507633bf76bccf1a6af27771fb0d6e2862b7eacAffected
  • cf60af03ca4e71134206809ea892e49b92a88896 to before d028bc080a0dcd6a7f8e1ae1bd32dda696505ba3Affected
  • cf60af03ca4e71134206809ea892e49b92a88896 to before fc633a598206d4f23af782db7c0b5f3a82751d2cAffected
  • cf60af03ca4e71134206809ea892e49b92a88896 to before 646ebbc5f2ff9147d084e1213143f091026a611cAffected
  • cf60af03ca4e71134206809ea892e49b92a88896 to before 44c74d27d1b9aaa99fa8a83640c1223575262b80Affected
LinuxLinux
  • 3.6Affected
  • before 3.6Not affected
  • 6.1.178 through 6.1.*Not affected
  • 6.6.145 through 6.6.*Not affected
  • 6.12.97 through 6.12.*Not affected
  • 6.18.40 through 6.18.*Not affected
  • 7.1.5 through 7.1.*Not affected
  • 7.2 and laterNot affected

References

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