{"id":"CVE-2026-64000","revision":null,"records":[{"revision":"c0a0368434e7459192769d0a55bdb6cd","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-64000","aliases":[],"title":"net: hsr: fix potential OOB access in supervision frame handling","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: hsr: fix potential OOB access in supervision frame handling\n\nEnsure the entire TLV header is linearized before access by adding\nsizeof(struct hsr_sup_tlv) to the pskb_may_pull() calls. Without this,\na truncated frame could cause an out-of-bounds access.","state":0,"publishedAt":"2026-07-19T14:56:18.116+00:00","modifiedAt":"2026-10-19T20:18:02.077+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/hsr/hsr_forward.c\"\n ],\n \"versions\": [\n {\n \"version\": \"eafaa88b3eb7f28aecb222281655473431d3ef2e\",\n \"lessThan\": \"09a37dca090c55ffb1a33f52d8667f1c2367ef48\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"eafaa88b3eb7f28aecb222281655473431d3ef2e\",\n \"lessThan\": \"a4b64f3e9c7b8259f7dd251a0313420ba7c01852\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"eafaa88b3eb7f28aecb222281655473431d3ef2e\",\n \"lessThan\": \"71c986c0ba45b7dc574fae27c83e7b6671556f37\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"eafaa88b3eb7f28aecb222281655473431d3ef2e\",\n \"lessThan\": \"fbd0662f9c9a66e8cc3df3099cca8ed6d3837cc7\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"eafaa88b3eb7f28aecb222281655473431d3ef2e\",\n \"lessThan\": \"78607a6854a22a2502f68092202e75a39af4865d\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"eafaa88b3eb7f28aecb222281655473431d3ef2e\",\n \"lessThan\": \"f229426072fc865654a60978bb7fda790a051ff3\",\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/hsr/hsr_forward.c\"\n ],\n \"versions\": [\n {\n \"version\": \"5.16\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"5.16\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.176\",\n \"lessThanOrEqual\": \"6.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.143\",\n \"lessThanOrEqual\": \"6.6.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.12.93\",\n \"lessThanOrEqual\": \"6.12.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.18.35\",\n \"lessThanOrEqual\": \"6.18.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"7.0.12\",\n \"lessThanOrEqual\": \"7.0.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"7.1\",\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:H/A:H","score":9.8,"severity":"CRITICAL"}],"references":["https://git.kernel.org/stable/c/09a37dca090c55ffb1a33f52d8667f1c2367ef48","https://git.kernel.org/stable/c/a4b64f3e9c7b8259f7dd251a0313420ba7c01852","https://git.kernel.org/stable/c/71c986c0ba45b7dc574fae27c83e7b6671556f37","https://git.kernel.org/stable/c/fbd0662f9c9a66e8cc3df3099cca8ed6d3837cc7","https://git.kernel.org/stable/c/78607a6854a22a2502f68092202e75a39af4865d","https://git.kernel.org/stable/c/f229426072fc865654a60978bb7fda790a051ff3"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-64000","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-64000","identifiers":["CVE-2026-64000"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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