{"id":"CVE-2026-46187","revision":null,"records":[{"revision":"fce88bab654a4852b9d73f9dc4edaaa7","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-46187","aliases":[],"title":"wifi: rsi: fix kthread lifetime race between self-exit and external-stop","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: rsi: fix kthread lifetime race between self-exit and external-stop\n\nRSI driver use both self-exit(kthread_complete_and_exit) and external-stop\n(kthread_stop) when killing a kthread. Generally, kthread_stop() is called\nfirst, and in this case, no particular issues occur.\n\nHowever, in rare instances where kthread_complete_and_exit() is called\nfirst and then kthread_stop() is called, a UAF occurs because the kthread\nobject, which has already exited and been freed, is accessed again.\n\nTherefore, to prevent this with minimal modification, you must remove\nkthread_stop() and change the code to wait until the self-exit operation\nis completed.","state":0,"publishedAt":"2026-05-28T09:36:41.427+00:00","modifiedAt":"2026-10-15T01:21:10.806+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/rsi/rsi_common.h\"\n ],\n \"versions\": [\n {\n \"version\": \"4c62764d0fc21a34ffc44eec1210038c3a2e4473\",\n \"lessThan\": \"4ac3095da22fc50e51ec10c3b8323c21ab3e441a\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"4c62764d0fc21a34ffc44eec1210038c3a2e4473\",\n \"lessThan\": \"9dfe8a4458a063c6433526bc59112a169eee1aa3\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"4c62764d0fc21a34ffc44eec1210038c3a2e4473\",\n \"lessThan\": \"4f697813162d5f9151726a6d2bee82bffe4b0256\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"4c62764d0fc21a34ffc44eec1210038c3a2e4473\",\n \"lessThan\": \"95fcb436586dc3c2983537d557ac05bbc6a027f3\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"4c62764d0fc21a34ffc44eec1210038c3a2e4473\",\n \"lessThan\": \"16d9f674c619838bdeae42abc0929c9c5477ea1f\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"4c62764d0fc21a34ffc44eec1210038c3a2e4473\",\n \"lessThan\": \"4f9a4ae8d2c198f01611ea376034c326ef43ab56\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"4c62764d0fc21a34ffc44eec1210038c3a2e4473\",\n \"lessThan\": \"4f4c9b13c485abd0a2d2c97f9db339d1dd8e147f\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"4c62764d0fc21a34ffc44eec1210038c3a2e4473\",\n \"lessThan\": \"db57a1aa54ff68669781976e4edb045e09e2b65b\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"d8f70ad66032363e3edceee81a7be2aaccb2d7f5\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"ec759c0015fb7d4f5c7cb5711d2c8905724c7983\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"c8ed05b1d8520f40395916438da9b38ce937a896\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"ad78e2e057ab8d914a2b5e3e6acf29c3c8a428a3\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"de1fd69b6541ff61177114d63af7ea719c426cf0\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"3.18.139\",\n \"lessThan\": \"3.19\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"4.4.179\",\n \"lessThan\": \"4.5\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"4.9.170\",\n \"lessThan\": \"4.10\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"4.14.113\",\n \"lessThan\": \"4.15\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"4.19.36\",\n \"lessThan\": \"4.20\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\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/rsi/rsi_common.h\"\n ],\n \"versions\": [\n {\n \"version\": \"4.20\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"4.20\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.10.258\",\n \"lessThanOrEqual\": \"5.10.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.15.209\",\n \"lessThanOrEqual\": \"5.15.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.175\",\n \"lessThanOrEqual\": \"6.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.140\",\n \"lessThanOrEqual\": \"6.6.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.12.88\",\n \"lessThanOrEqual\": \"6.12.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.18.30\",\n \"lessThanOrEqual\": \"6.18.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"7.0.7\",\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":[],"references":["https://git.kernel.org/stable/c/4ac3095da22fc50e51ec10c3b8323c21ab3e441a","https://git.kernel.org/stable/c/9dfe8a4458a063c6433526bc59112a169eee1aa3","https://git.kernel.org/stable/c/4f697813162d5f9151726a6d2bee82bffe4b0256","https://git.kernel.org/stable/c/95fcb436586dc3c2983537d557ac05bbc6a027f3","https://git.kernel.org/stable/c/16d9f674c619838bdeae42abc0929c9c5477ea1f","https://git.kernel.org/stable/c/4f9a4ae8d2c198f01611ea376034c326ef43ab56","https://git.kernel.org/stable/c/4f4c9b13c485abd0a2d2c97f9db339d1dd8e147f","https://git.kernel.org/stable/c/db57a1aa54ff68669781976e4edb045e09e2b65b"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-46187","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-46187","identifiers":["CVE-2026-46187"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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