{"id":"CVE-2026-80707","revision":null,"records":[{"revision":"a285c8077eb8442581237a15b9107271","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-80707","aliases":[],"title":"can: j1939: transport: j1939_session_fresh_new(): initialize receive buffer","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ncan: j1939: transport: j1939_session_fresh_new(): initialize receive buffer\n\nZero the allocated buffer in j1939_session_fresh_new() to ensure it\ncontains no residual data.\n\nWhile there is a potential performance impact if users allocate maximum\nsized ETP buffers, most real-world use cases are not noticeably affected\nsince the maximum known buffer size is typically around 65K.\n\n[mkl: add Message-ID]","state":0,"publishedAt":"2026-08-28T06:53:08.244+00:00","modifiedAt":"2026-10-16T19:26:34.357+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/can/j1939/transport.c\"\n ],\n \"versions\": [\n {\n \"version\": \"9d71dd0c70099914fcd063135da3c580865e924c\",\n \"lessThan\": \"348818277a3646d5b9fa60c9d20c00dc4bc86832\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"9d71dd0c70099914fcd063135da3c580865e924c\",\n \"lessThan\": \"f3e120a34b336079479fa10f706f0636eaa6e751\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"9d71dd0c70099914fcd063135da3c580865e924c\",\n \"lessThan\": \"bbfa49d1e287de44994955b44d19281be3195b44\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"9d71dd0c70099914fcd063135da3c580865e924c\",\n \"lessThan\": \"194d67e92197eb820f4c2c6605d9721333b3eba0\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"9d71dd0c70099914fcd063135da3c580865e924c\",\n \"lessThan\": \"038bad8e16c2e28acf31f0b527a816fb23a57269\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"9d71dd0c70099914fcd063135da3c580865e924c\",\n \"lessThan\": \"8604a3b81b9d0ceaf04fee5f52e701f623a179f9\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"9d71dd0c70099914fcd063135da3c580865e924c\",\n \"lessThan\": \"d5b3613c7d69d8dcb4dd6704f1f463198ce9f6cf\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"9d71dd0c70099914fcd063135da3c580865e924c\",\n \"lessThan\": \"eb96c58907922546e415e545fe9a14ea63b02719\",\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/can/j1939/transport.c\"\n ],\n \"versions\": [\n {\n \"version\": \"5.4\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"5.4\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.10.265\",\n \"lessThanOrEqual\": \"5.10.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.15.216\",\n \"lessThanOrEqual\": \"5.15.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.183\",\n \"lessThanOrEqual\": \"6.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.151\",\n \"lessThanOrEqual\": \"6.6.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.12.103\",\n \"lessThanOrEqual\": \"6.12.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.18.44\",\n \"lessThanOrEqual\": \"6.18.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"7.1.8\",\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:H/I:N/A:N","score":7.5,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/348818277a3646d5b9fa60c9d20c00dc4bc86832","https://git.kernel.org/stable/c/f3e120a34b336079479fa10f706f0636eaa6e751","https://git.kernel.org/stable/c/bbfa49d1e287de44994955b44d19281be3195b44","https://git.kernel.org/stable/c/194d67e92197eb820f4c2c6605d9721333b3eba0","https://git.kernel.org/stable/c/038bad8e16c2e28acf31f0b527a816fb23a57269","https://git.kernel.org/stable/c/8604a3b81b9d0ceaf04fee5f52e701f623a179f9","https://git.kernel.org/stable/c/d5b3613c7d69d8dcb4dd6704f1f463198ce9f6cf","https://git.kernel.org/stable/c/eb96c58907922546e415e545fe9a14ea63b02719"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-80707","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-80707","identifiers":["CVE-2026-80707"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all 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