{"id":"CVE-2026-72235","revision":null,"records":[{"revision":"e4323343e48c4f8d974fa2dc7da17aac","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-72235","aliases":[],"title":"batman-adv: retrieve ethhdr after potential skb realloc on RX","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: retrieve ethhdr after potential skb realloc on RX\n\npskb_may_pull() in batadv_interface_rx() could reallocate the buffer behind\nthe skb. Variables which were pointing to the old buffer need to be\nreassigned to avoid an use-after-free.\n\nThis was done correctly for the VLAN header but missed for the ethernet\nheader which is later used for the TT and AP isolation handling.","state":0,"publishedAt":"2026-08-15T05:54:25.136+00:00","modifiedAt":"2026-10-16T18:45:04.206+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/batman-adv/mesh-interface.c\"\n ],\n \"versions\": [\n {\n \"version\": \"c6c8fea29769d998d94fcec9b9f14d4b52b349d3\",\n \"lessThan\": \"6e189f14d1ea28db212b9d70a02131a7ce518012\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"c6c8fea29769d998d94fcec9b9f14d4b52b349d3\",\n \"lessThan\": \"a1820344b180cb55af748f102bc536b5c93164db\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"c6c8fea29769d998d94fcec9b9f14d4b52b349d3\",\n \"lessThan\": \"6abf73589bed3f27ee240c08108feb72bed0b9c6\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"c6c8fea29769d998d94fcec9b9f14d4b52b349d3\",\n \"lessThan\": \"f19259395b44af67f3c274e34237c295b526b859\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"c6c8fea29769d998d94fcec9b9f14d4b52b349d3\",\n \"lessThan\": \"2cefa5141cab8ec1e4b24cf585958b13f2e3049d\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"c6c8fea29769d998d94fcec9b9f14d4b52b349d3\",\n \"lessThan\": \"85a71a81854e0e191ad0e533eabb4eff54866feb\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"c6c8fea29769d998d94fcec9b9f14d4b52b349d3\",\n \"lessThan\": \"b031fc97e1993d29d6c3a0e86a99140528cf31e8\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"c6c8fea29769d998d94fcec9b9f14d4b52b349d3\",\n \"lessThan\": \"035e1fed892d3d06002a73ff73668f618a514644\",\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/batman-adv/mesh-interface.c\"\n ],\n \"versions\": [\n {\n \"version\": \"2.6.38\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"2.6.38\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.10.261\",\n \"lessThanOrEqual\": \"5.10.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.15.212\",\n \"lessThanOrEqual\": \"5.15.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.178\",\n \"lessThanOrEqual\": \"6.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.145\",\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: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/6e189f14d1ea28db212b9d70a02131a7ce518012","https://git.kernel.org/stable/c/a1820344b180cb55af748f102bc536b5c93164db","https://git.kernel.org/stable/c/6abf73589bed3f27ee240c08108feb72bed0b9c6","https://git.kernel.org/stable/c/f19259395b44af67f3c274e34237c295b526b859","https://git.kernel.org/stable/c/2cefa5141cab8ec1e4b24cf585958b13f2e3049d","https://git.kernel.org/stable/c/85a71a81854e0e191ad0e533eabb4eff54866feb","https://git.kernel.org/stable/c/b031fc97e1993d29d6c3a0e86a99140528cf31e8","https://git.kernel.org/stable/c/035e1fed892d3d06002a73ff73668f618a514644"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-72235","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-72235","identifiers":["CVE-2026-72235"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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