{"id":"CVE-2026-80601","revision":null,"records":[{"revision":"520389da01c54687912dded98a5243d8","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-80601","aliases":[],"title":"batman-adv: gw: acquire ethernet header only after skb realloc","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: gw: acquire ethernet header only after skb realloc\n\nThe pskb_may_pull() called by batadv_get_vid() could reallocate the buffer\nbehind the skb. Variables which were pointing to the old buffer need to be\nreassigned to avoid an use-after-free.","state":0,"publishedAt":"2026-08-28T06:48:27.948+00:00","modifiedAt":"2026-10-16T19:26:29.891+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/gateway_client.c\"\n ],\n \"versions\": [\n {\n \"version\": \"6c413b1c22a2c4ef324f1c6f2c282f1ca10a93b9\",\n \"lessThan\": \"2760b38222c8828b075802342fe3b91eb823d542\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"6c413b1c22a2c4ef324f1c6f2c282f1ca10a93b9\",\n \"lessThan\": \"6c37f1166549c999ccd164b0cb6462d1ae68f8f6\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"6c413b1c22a2c4ef324f1c6f2c282f1ca10a93b9\",\n \"lessThan\": \"b79884a5567bf788fb76c30832467cf6a56f3c0d\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"6c413b1c22a2c4ef324f1c6f2c282f1ca10a93b9\",\n \"lessThan\": \"afac8096bde4948e3caa7e4dd733867cfbd3018e\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"6c413b1c22a2c4ef324f1c6f2c282f1ca10a93b9\",\n \"lessThan\": \"e3f4325e35dd6e76b80665f3510738ce34819753\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"6c413b1c22a2c4ef324f1c6f2c282f1ca10a93b9\",\n \"lessThan\": \"e6b43acd34b219b807e65096ce207b087942779d\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"6c413b1c22a2c4ef324f1c6f2c282f1ca10a93b9\",\n \"lessThan\": \"916dac5f2944f63f07f7b501acbea6737dbbed0e\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"6c413b1c22a2c4ef324f1c6f2c282f1ca10a93b9\",\n \"lessThan\": \"77880a3be88d378d60cc1e8f8ec70430e2ed0518\",\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/gateway_client.c\"\n ],\n \"versions\": [\n {\n \"version\": \"3.14\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"3.14\",\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/2760b38222c8828b075802342fe3b91eb823d542","https://git.kernel.org/stable/c/6c37f1166549c999ccd164b0cb6462d1ae68f8f6","https://git.kernel.org/stable/c/b79884a5567bf788fb76c30832467cf6a56f3c0d","https://git.kernel.org/stable/c/afac8096bde4948e3caa7e4dd733867cfbd3018e","https://git.kernel.org/stable/c/e3f4325e35dd6e76b80665f3510738ce34819753","https://git.kernel.org/stable/c/e6b43acd34b219b807e65096ce207b087942779d","https://git.kernel.org/stable/c/916dac5f2944f63f07f7b501acbea6737dbbed0e","https://git.kernel.org/stable/c/77880a3be88d378d60cc1e8f8ec70430e2ed0518"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-80601","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-80601","identifiers":["CVE-2026-80601"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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