{"id":"CVE-2025-40253","revision":null,"records":[{"revision":"07369462125242f49a7c0f9d43fa5b9a","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-40253","aliases":[],"title":"s390/ctcm: Fix double-kfree","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ns390/ctcm: Fix double-kfree\n\nThe function 'mpc_rcvd_sweep_req(mpcginfo)' is called conditionally\nfrom function 'ctcmpc_unpack_skb'. It frees passed mpcginfo.\nAfter that a call to function 'kfree' in function 'ctcmpc_unpack_skb'\nfrees it again.\n\nRemove 'kfree' call in function 'mpc_rcvd_sweep_req(mpcginfo)'.\n\nBug detected by the clang static analyzer.","state":0,"publishedAt":"2025-12-04T16:08:15.34+00:00","modifiedAt":"2026-10-15T22:02:41.932+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 \"drivers/s390/net/ctcm_mpc.c\"\n ],\n \"versions\": [\n {\n \"version\": \"467ddbbe7e749d558f13e640f50f546149c930b3\",\n \"lessThan\": \"06f1dd1de0d33dbfbd2e1fc9fc57d8895f730de2\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"4d3c6d741816539b57fa1110c3f765a8c176d7b4\",\n \"lessThan\": \"6bf8ccaabce8cebb6cb1f255c93d0acdfe95c17a\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"2bd57101c3ecf3f8c0da1d26c2b6ad511adc6d50\",\n \"lessThan\": \"7616e2eee679746d526c7f5befd4eedb995935b5\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"0c0b20587b9f25a2ad14db7f80ebe49bdf29920a\",\n \"lessThan\": \"43096dab8cc60fc39133205fd149a54d3acebea8\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"0c0b20587b9f25a2ad14db7f80ebe49bdf29920a\",\n \"lessThan\": \"3b177b2ded563df16f6d5920671ffcfe5915d472\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"0c0b20587b9f25a2ad14db7f80ebe49bdf29920a\",\n \"lessThan\": \"b9dbfb1b5699f9f1e4991f96741bdf9047147589\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"0c0b20587b9f25a2ad14db7f80ebe49bdf29920a\",\n \"lessThan\": \"7ff76f8dc6b550f8d16487bf3cebc278be720b5c\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"0c0b20587b9f25a2ad14db7f80ebe49bdf29920a\",\n \"lessThan\": \"da02a1824884d6c84c5e5b5ac373b0c9e3288ec2\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"36933de59f67029e5739a98393891f9b94f27e0f\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"d886b4292a1c5b4facdb2dfdc31f0fecc71df898\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"4c9ba0fed125deba8416b995b0c274b0804c0c24\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"ea0053af5dab4d63a9c44563973fb2f3bfd9eb2b\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"5.4.195\",\n \"lessThan\": \"5.4.302\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.10.117\",\n \"lessThan\": \"5.10.247\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.15.41\",\n \"lessThan\": \"5.15.197\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"4.9.315\",\n \"lessThan\": \"4.10\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"4.14.280\",\n \"lessThan\": \"4.15\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"4.19.244\",\n \"lessThan\": \"4.20\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.17.9\",\n \"lessThan\": \"5.18\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\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 \"drivers/s390/net/ctcm_mpc.c\"\n ],\n \"versions\": [\n {\n \"version\": \"5.18\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"5.18\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.4.302\",\n \"lessThanOrEqual\": \"5.4.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.10.247\",\n \"lessThanOrEqual\": \"5.10.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.15.197\",\n \"lessThanOrEqual\": \"5.15.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.159\",\n \"lessThanOrEqual\": \"6.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.118\",\n \"lessThanOrEqual\": \"6.6.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.12.60\",\n \"lessThanOrEqual\": \"6.12.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.17.10\",\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:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":8.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/06f1dd1de0d33dbfbd2e1fc9fc57d8895f730de2","https://git.kernel.org/stable/c/6bf8ccaabce8cebb6cb1f255c93d0acdfe95c17a","https://git.kernel.org/stable/c/7616e2eee679746d526c7f5befd4eedb995935b5","https://git.kernel.org/stable/c/43096dab8cc60fc39133205fd149a54d3acebea8","https://git.kernel.org/stable/c/3b177b2ded563df16f6d5920671ffcfe5915d472","https://git.kernel.org/stable/c/b9dbfb1b5699f9f1e4991f96741bdf9047147589","https://git.kernel.org/stable/c/7ff76f8dc6b550f8d16487bf3cebc278be720b5c","https://git.kernel.org/stable/c/da02a1824884d6c84c5e5b5ac373b0c9e3288ec2"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-40253","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-40253","identifiers":["CVE-2025-40253"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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