{"id":"CVE-2026-72242","revision":"19a1da095ab547488af1f69a9232aead","records":[{"revision":"19a1da095ab547488af1f69a9232aead","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-72242","aliases":[],"title":"selinux: avoid sk_socket dereference in selinux_sctp_bind_connect()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nselinux: avoid sk_socket dereference in selinux_sctp_bind_connect()\n\nselinux_sctp_bind_connect() dereferences sk->sk_socket to pass a\nstruct socket * to selinux_socket_bind() and\nselinux_socket_connect_helper().  However, when the hook is invoked\nfrom the ASCONF softirq path (sctp_process_asconf), there is no file\nreference guaranteeing that sk->sk_socket is non-NULL.  The setsockopt\ncallers (bindx, connectx, set_primary, sendmsg connect) hold a file\nreference and are not affected.\n\nBoth selinux_socket_bind() and selinux_socket_connect_helper()\nimmediately resolve sock->sk, never using the struct socket * for\nanything else.  Refactor the inner logic into helpers that take a\nstruct sock * directly so that selinux_sctp_bind_connect() never needs\nto touch sk->sk_socket at all.","state":0,"publishedAt":"2026-08-15T05:54:30.378+00:00","modifiedAt":"2026-10-16T18:45:04.443+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\": \"d452930fd3b9031e59abfeddb2fa383f1403d61a\",\n                            \"lessThan\": \"e4f3b8db1b0c5e9f6374b8996d9e1888d1042b55\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"d452930fd3b9031e59abfeddb2fa383f1403d61a\",\n                            \"lessThan\": \"2fcaf133a8fd88b69f32ebaecad93fd302da828f\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"d452930fd3b9031e59abfeddb2fa383f1403d61a\",\n                            \"lessThan\": \"a4bc2fb8536488b37680c0b66c59434a4b7f8c2f\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"d452930fd3b9031e59abfeddb2fa383f1403d61a\",\n                            \"lessThan\": \"5d4d93f9bfbc997ffbb03cd6107e8f6979dbb9b4\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"d452930fd3b9031e59abfeddb2fa383f1403d61a\",\n                            \"lessThan\": \"cc8bd47b35eca82393cbad08b1cc86f02e034439\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"d452930fd3b9031e59abfeddb2fa383f1403d61a\",\n                            \"lessThan\": \"d61a80b17254be7230bc5544f8e62ddf21ab38e2\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"d452930fd3b9031e59abfeddb2fa383f1403d61a\",\n                            \"lessThan\": \"37d642b37ccdc31e1947c2ebc8dc38f03d4a0ceb\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"d452930fd3b9031e59abfeddb2fa383f1403d61a\",\n                            \"lessThan\": \"56acfeb10019e200ab6787d01f8d7cbe0f01526f\",\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\": \"4.17\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"4.17\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.266\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.217\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.184\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.148\",\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:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/e4f3b8db1b0c5e9f6374b8996d9e1888d1042b55","https://git.kernel.org/stable/c/2fcaf133a8fd88b69f32ebaecad93fd302da828f","https://git.kernel.org/stable/c/a4bc2fb8536488b37680c0b66c59434a4b7f8c2f","https://git.kernel.org/stable/c/5d4d93f9bfbc997ffbb03cd6107e8f6979dbb9b4","https://git.kernel.org/stable/c/cc8bd47b35eca82393cbad08b1cc86f02e034439","https://git.kernel.org/stable/c/d61a80b17254be7230bc5544f8e62ddf21ab38e2","https://git.kernel.org/stable/c/37d642b37ccdc31e1947c2ebc8dc38f03d4a0ceb","https://git.kernel.org/stable/c/56acfeb10019e200ab6787d01f8d7cbe0f01526f"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-72242","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-72242","identifiers":["CVE-2026-72242"]},"retained":false,"historicalAffected":[]}],"coverage":[]}