{"id":"CVE-2026-68402","revision":null,"records":[{"revision":"876c1057b2c74497aa7911dcd15b00e7","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-68402","aliases":[],"title":"wifi: cfg80211: bound element ID read when checking non-inheritance","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: cfg80211: bound element ID read when checking non-inheritance\n\ncfg80211_is_element_inherited() reads the first data octet of the\ncandidate element (id = elem->data[0]) to look it up in an extension\nnon-inheritance list. It does so after testing elem->id, but without\nverifying that the element actually has a data octet. A zero-length\nextension element (WLAN_EID_EXTENSION with length 0) therefore makes it\nread one octet past the end of the element.\n\n_ieee802_11_parse_elems_full() runs this check for every element of a\nframe once a non-inheritance context exists -- e.g. while parsing a\nper-STA profile of a Multi-Link element in a (re)association response,\nor a non-transmitted BSS profile -- so a crafted frame from an AP can\ntrigger a one-octet slab-out-of-bounds read during element parsing:\n\n BUG: KASAN: slab-out-of-bounds in cfg80211_is_element_inherited\n Read of size 1 ... in net/wireless/scan.c\n\nReturn early (treat the element as inherited) when an extension element\ncarries no data, mirroring the existing handling of empty ID lists.\n\nThe bug was found by fuzzing ieee802_11_parse_elems_full() under KASAN.","state":0,"publishedAt":"2026-08-10T12:04:22.113+00:00","modifiedAt":"2026-10-19T21:09:08.74+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/wireless/scan.c\"\n ],\n \"versions\": [\n {\n \"version\": \"f7dacfb11475ba777e1e84ccec2e14b0ba5a17a3\",\n \"lessThan\": \"521dd5fe6d12b0d3c275f919738dc3a07117f4a5\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"f7dacfb11475ba777e1e84ccec2e14b0ba5a17a3\",\n \"lessThan\": \"24154c172246ae3f0e69bb17c9111095685ceedc\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"f7dacfb11475ba777e1e84ccec2e14b0ba5a17a3\",\n \"lessThan\": \"2d31ebb26a14f103c9cdc5287fb20cb2d4bde901\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"f7dacfb11475ba777e1e84ccec2e14b0ba5a17a3\",\n \"lessThan\": \"20c308d9a57722801961f816395bf825f7bde6bc\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"f7dacfb11475ba777e1e84ccec2e14b0ba5a17a3\",\n \"lessThan\": \"84bd907361c56fbd5523eceb2682cb39da059bd5\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"f7dacfb11475ba777e1e84ccec2e14b0ba5a17a3\",\n \"lessThan\": \"11ac7a5e75f5132f1778e0c60981d30dc29fb869\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"f7dacfb11475ba777e1e84ccec2e14b0ba5a17a3\",\n \"lessThan\": \"ddf2773bcc8e49a43c561f22ec1e7924215d7947\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"f7dacfb11475ba777e1e84ccec2e14b0ba5a17a3\",\n \"lessThan\": \"cb8afea4655ff004fa7feee825d5c79783525383\",\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/wireless/scan.c\"\n ],\n \"versions\": [\n {\n \"version\": \"5.2\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"5.2\",\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\": \"6.6.148\",\n \"lessThanOrEqual\": \"6.6.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.12.101\",\n \"lessThanOrEqual\": \"6.12.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.18.42\",\n \"lessThanOrEqual\": \"6.18.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"7.1.6\",\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:L/I:N/A:H","score":7.1,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/521dd5fe6d12b0d3c275f919738dc3a07117f4a5","https://git.kernel.org/stable/c/24154c172246ae3f0e69bb17c9111095685ceedc","https://git.kernel.org/stable/c/2d31ebb26a14f103c9cdc5287fb20cb2d4bde901","https://git.kernel.org/stable/c/20c308d9a57722801961f816395bf825f7bde6bc","https://git.kernel.org/stable/c/84bd907361c56fbd5523eceb2682cb39da059bd5","https://git.kernel.org/stable/c/11ac7a5e75f5132f1778e0c60981d30dc29fb869","https://git.kernel.org/stable/c/ddf2773bcc8e49a43c561f22ec1e7924215d7947","https://git.kernel.org/stable/c/cb8afea4655ff004fa7feee825d5c79783525383"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-68402","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-68402","identifiers":["CVE-2026-68402"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all 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