{"id":"CVE-2026-72243","revision":"9959c3b0606540ff850bde678126eade","records":[{"revision":"9959c3b0606540ff850bde678126eade","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-72243","aliases":[],"title":"selinux: check connect-related permissions on TCP Fast Open","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nselinux: check connect-related permissions on TCP Fast Open\n\nSimilar to Landlock, SELinux was not updated when TCP Fast Open\nsupport was introduced to ensure connect-related permissions are\nchecked when using TCP Fast Open. Update its socket_sendmsg() hook to\ncall selinux_socket_connect() when MSG_FASTOPEN is passed.","state":0,"publishedAt":"2026-08-15T05:54:31.117+00:00","modifiedAt":"2026-10-16T18:45:04.616+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"security/selinux/hooks.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"cf60af03ca4e71134206809ea892e49b92a88896\",\n                            \"lessThan\": \"11406d0d7e11b4e525bb2ace2c70107031d058da\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"cf60af03ca4e71134206809ea892e49b92a88896\",\n                            \"lessThan\": \"e507633bf76bccf1a6af27771fb0d6e2862b7eac\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"cf60af03ca4e71134206809ea892e49b92a88896\",\n                            \"lessThan\": \"d028bc080a0dcd6a7f8e1ae1bd32dda696505ba3\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"cf60af03ca4e71134206809ea892e49b92a88896\",\n                            \"lessThan\": \"fc633a598206d4f23af782db7c0b5f3a82751d2c\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"cf60af03ca4e71134206809ea892e49b92a88896\",\n                            \"lessThan\": \"646ebbc5f2ff9147d084e1213143f091026a611c\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"cf60af03ca4e71134206809ea892e49b92a88896\",\n                            \"lessThan\": \"44c74d27d1b9aaa99fa8a83640c1223575262b80\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"security/selinux/hooks.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"3.6\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"3.6\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.178\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.145\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.97\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.40\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.1.5\",\n                            \"lessThanOrEqual\": \"7.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N","score":8.4,"severity":"HIGH"}],"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"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-72243","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-72243","identifiers":["CVE-2026-72243"]},"retained":false,"historicalAffected":[]}],"coverage":[]}