{"id":"CVE-2026-68198","revision":null,"records":[{"revision":"e20e287d2c8b40c285ffaf25c8f500cc","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-68198","aliases":[],"title":"wifi: ath6kl: fix use-after-free in aggr_reset_state()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath6kl: fix use-after-free in aggr_reset_state()\n\nThe aggr_reset_state() function uses timer_delete() (non-synchronous)\nfor the aggregation timer before proceeding to delete TID state and\nbefore the structure is freed by callers like aggr_module_destroy().\n\nIf the timer callback (aggr_timeout) is executing when aggr_reset_state()\nis called, the callback will continue to access aggr_conn fields like\nrx_tid[] and stat[] which may be freed immediately after by\nkfree(aggr_info->aggr_conn) in aggr_module_destroy().\n\nAdditionally, the timer callback can re-arm itself via mod_timer() while\naggr_reset_state() is running, creating a more complex race condition.\n\nUse timer_delete_sync() instead to ensure any running timer callback\nhas completed before returning.","state":0,"publishedAt":"2026-08-10T12:00:16.718+00:00","modifiedAt":"2026-10-19T18:00:24.933+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 \"drivers/net/wireless/ath/ath6kl/txrx.c\"\n ],\n \"versions\": [\n {\n \"version\": \"bdcd81707973cf8aa9305337166f8ee842a050d4\",\n \"lessThan\": \"a1bac650b2d6b1baab1f3e78e2e007a6e2948dde\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"bdcd81707973cf8aa9305337166f8ee842a050d4\",\n \"lessThan\": \"2132a6db05846dd2318857d00e0c1291f9e41b29\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"bdcd81707973cf8aa9305337166f8ee842a050d4\",\n \"lessThan\": \"17ff29cd8dbc977c97788a5f7c011ec807b58242\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"bdcd81707973cf8aa9305337166f8ee842a050d4\",\n \"lessThan\": \"64af6534a085f49d6ed33338a19ab9cf0d0523c9\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"bdcd81707973cf8aa9305337166f8ee842a050d4\",\n \"lessThan\": \"b5d618fd61b9069b4c0a6b487022dd3117ad5acc\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"bdcd81707973cf8aa9305337166f8ee842a050d4\",\n \"lessThan\": \"18965470d41e69d3fc10eb62afae29d10f4cdfd1\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"bdcd81707973cf8aa9305337166f8ee842a050d4\",\n \"lessThan\": \"a3313111b5d9046af60b370c93eec105b27380c1\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"bdcd81707973cf8aa9305337166f8ee842a050d4\",\n \"lessThan\": \"ba7debb4dd6427386862220e8335a53a4bfc235d\",\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 \"drivers/net/wireless/ath/ath6kl/txrx.c\"\n ],\n \"versions\": [\n {\n \"version\": \"3.2\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"3.2\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.10.266\",\n \"lessThanOrEqual\": \"5.10.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.15.217\",\n \"lessThanOrEqual\": \"5.15.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.184\",\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\": \"6.18.42\",\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:H/I:H/A:H","score":8.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/a1bac650b2d6b1baab1f3e78e2e007a6e2948dde","https://git.kernel.org/stable/c/2132a6db05846dd2318857d00e0c1291f9e41b29","https://git.kernel.org/stable/c/17ff29cd8dbc977c97788a5f7c011ec807b58242","https://git.kernel.org/stable/c/64af6534a085f49d6ed33338a19ab9cf0d0523c9","https://git.kernel.org/stable/c/b5d618fd61b9069b4c0a6b487022dd3117ad5acc","https://git.kernel.org/stable/c/18965470d41e69d3fc10eb62afae29d10f4cdfd1","https://git.kernel.org/stable/c/a3313111b5d9046af60b370c93eec105b27380c1","https://git.kernel.org/stable/c/ba7debb4dd6427386862220e8335a53a4bfc235d"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-68198","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-68198","identifiers":["CVE-2026-68198"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all 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