{"id":"CVE-2025-40187","revision":"25b7602382f14ac1a679845558c0a48c","records":[{"revision":"25b7602382f14ac1a679845558c0a48c","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-40187","aliases":[],"title":"net/sctp: fix a null dereference in sctp_disposition sctp_sf_do_5_1D_ce()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sctp: fix a null dereference in sctp_disposition sctp_sf_do_5_1D_ce()\n\nIf new_asoc->peer.adaptation_ind=0 and sctp_ulpevent_make_authkey=0\nand sctp_ulpevent_make_authkey() returns 0, then the variable\nai_ev remains zero and the zero will be dereferenced\nin the sctp_ulpevent_free() function.","state":0,"publishedAt":"2025-11-12T21:56:29.504+00:00","modifiedAt":"2026-10-15T22:02:40.12+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                        \"net/sctp/sm_statefuns.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"30f6ebf65bc46161c5aaff1db2e6e7c76aa4a06b\",\n                            \"lessThan\": \"1014b83778c8677f1d7a57c26dc728baa801ac62\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"30f6ebf65bc46161c5aaff1db2e6e7c76aa4a06b\",\n                            \"lessThan\": \"7f702f85df0266ed7b5bab81ba50394c92f3c928\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"30f6ebf65bc46161c5aaff1db2e6e7c76aa4a06b\",\n                            \"lessThan\": \"dbceedc0213e75bf3e9f9f9e2f66b10699d004fe\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"30f6ebf65bc46161c5aaff1db2e6e7c76aa4a06b\",\n                            \"lessThan\": \"025419f4e216a3ae0d0cec622262e98e8078c447\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"30f6ebf65bc46161c5aaff1db2e6e7c76aa4a06b\",\n                            \"lessThan\": \"c21f45cfa4a9526b34d76b397c9ef080668b6e73\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"30f6ebf65bc46161c5aaff1db2e6e7c76aa4a06b\",\n                            \"lessThan\": \"d0e8f1445c19b1786759ba72a38267e1449bab7e\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"30f6ebf65bc46161c5aaff1db2e6e7c76aa4a06b\",\n                            \"lessThan\": \"badbd79313e6591616c1b78e29a9b71efed7f035\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"30f6ebf65bc46161c5aaff1db2e6e7c76aa4a06b\",\n                            \"lessThan\": \"2f3119686ef50319490ccaec81a575973da98815\",\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                        \"net/sctp/sm_statefuns.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\": \"5.4.301\",\n                            \"lessThanOrEqual\": \"5.4.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.246\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.195\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.157\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.113\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.54\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.17.4\",\n                            \"lessThanOrEqual\": \"6.17.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18\",\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/1014b83778c8677f1d7a57c26dc728baa801ac62","https://git.kernel.org/stable/c/7f702f85df0266ed7b5bab81ba50394c92f3c928","https://git.kernel.org/stable/c/dbceedc0213e75bf3e9f9f9e2f66b10699d004fe","https://git.kernel.org/stable/c/025419f4e216a3ae0d0cec622262e98e8078c447","https://git.kernel.org/stable/c/c21f45cfa4a9526b34d76b397c9ef080668b6e73","https://git.kernel.org/stable/c/d0e8f1445c19b1786759ba72a38267e1449bab7e","https://git.kernel.org/stable/c/badbd79313e6591616c1b78e29a9b71efed7f035","https://git.kernel.org/stable/c/2f3119686ef50319490ccaec81a575973da98815"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-40187","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-40187","identifiers":["CVE-2025-40187"]},"retained":false,"historicalAffected":[]}],"coverage":[]}