CVE-2026-72243
8.4
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 11406d0d7e11b4e525bb2ace2c70107031d058da | affected |
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < e507633bf76bccf1a6af27771fb0d6e2862b7eac | affected |
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < d028bc080a0dcd6a7f8e1ae1bd32dda696505ba3 | affected |
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < fc633a598206d4f23af782db7c0b5f3a82751d2c | affected |
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 646ebbc5f2ff9147d084e1213143f091026a611c | affected |
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 44c74d27d1b9aaa99fa8a83640c1223575262b80 | affected |
| Linux | Linux | 0 < 6.1.178 | affected |
| Linux | Linux | 0 < 6.6.145 | affected |
| Linux | Linux | 0 < 6.12.97 | affected |
| Linux | Linux | 0 < 6.18.40 | affected |
| Linux | Linux | 0 < 7.1.5 | affected |
| Linux | Linux | 6.1.178 <= 6.1.* | unaffected |
| Linux | Linux | 6.6.145 <= 6.6.* | unaffected |
| Linux | Linux | 6.12.97 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.40 <= 6.18.* | unaffected |
| Linux | Linux | 7.1.5 <= 7.1.* | unaffected |
| Linux | Linux | 7.2 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/11406d0d7e11b4e525bb2ace2c70107031d058da
- https://git.kernel.org/stable/c/e507633bf76bccf1a6af27771fb0d6e2862b7eac
- https://git.kernel.org/stable/c/d028bc080a0dcd6a7f8e1ae1bd32dda696505ba3
- https://git.kernel.org/stable/c/fc633a598206d4f23af782db7c0b5f3a82751d2c
- https://git.kernel.org/stable/c/646ebbc5f2ff9147d084e1213143f091026a611c
- https://git.kernel.org/stable/c/44c74d27d1b9aaa99fa8a83640c1223575262b80
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