CVE-2026-90344

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-90344", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-11T19:38:34.804Z", "datePublished": "2026-09-17T16:08:54.311Z", "dateUpdated": "2026-10-19T09:02:01.149Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T09:02:01.149Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: disconnect on CSA to channel 0\n\nThe refactor for the CSA parsing erroneously equates channel\nzero and no information present, leading it to ignore a CSA\non an AP that advertises a switch to that (invalid) channel.\nThis leads to not disconnecting, which we should. For Intel\ndevices, this can lead to a firmware crash.\n\nFix this by using an int type for the channel number as well\nas the opclass, and using a (negative) value that cannot be\nencoded in the element to indicate it's not present."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/mac80211/spectmgmt.c"], "versions": [{"version": "21c3f8f95554feff9bed15703e89adbe582e0383", "lessThan": "099aadb2012d7490bc584cc5075ef11cbc33f2c3", "status": "affected", "versionType": "git"}, {"version": "21c3f8f95554feff9bed15703e89adbe582e0383", "lessThan": "e7bc5ab93acd1c3f54feeb9fa19ead3530168090", "status": "affected", "versionType": "git"}, {"version": "21c3f8f95554feff9bed15703e89adbe582e0383", "lessThan": "eef374088450bb91626e133c7172b8a0e969a522", "status": "affected", "versionType": "git"}, {"version": "21c3f8f95554feff9bed15703e89adbe582e0383", "lessThan": "cf57f0a674cc3e3cda1a789359cc1238b61b9d7d", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/mac80211/spectmgmt.c"], "versions": [{"version": "6.9", "status": "affected"}, {"version": "0", "lessThan": "6.9", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.110", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.52", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.6", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9", "versionEndExcluding": "6.12.110"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9", "versionEndExcluding": "6.18.52"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9", "versionEndExcluding": "7.2.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/099aadb2012d7490bc584cc5075ef11cbc33f2c3"}, {"url": "https://git.kernel.org/stable/c/e7bc5ab93acd1c3f54feeb9fa19ead3530168090"}, {"url": "https://git.kernel.org/stable/c/eef374088450bb91626e133c7172b8a0e969a522"}, {"url": "https://git.kernel.org/stable/c/cf57f0a674cc3e3cda1a789359cc1238b61b9d7d"}], "title": "wifi: mac80211: disconnect on CSA to channel 0", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["net/mac80211/spectmgmt.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "099aadb2012d7490bc584cc5075ef11cbc33f2c3", "status": "affected", "version": "21c3f8f95554feff9bed15703e89adbe582e0383", "versionType": "git"}, {"lessThan": "e7bc5ab93acd1c3f54feeb9fa19ead3530168090", "status": "affected", "version": "21c3f8f95554feff9bed15703e89adbe582e0383", "versionType": "git"}, {"lessThan": "eef374088450bb91626e133c7172b8a0e969a522", "status": "affected", "version": "21c3f8f95554feff9bed15703e89adbe582e0383", "versionType": "git"}, {"lessThan": "cf57f0a674cc3e3cda1a789359cc1238b61b9d7d", "status": "affected", "version": "21c3f8f95554feff9bed15703e89adbe582e0383", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["net/mac80211/spectmgmt.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.9"}, {"lessThan": "6.9", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.110", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.52", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.6", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: disconnect on CSA to channel 0\n\nThe refactor for the CSA parsing erroneously equates channel\nzero and no information present, leading it to ignore a CSA\non an AP that advertises a switch to that (invalid) channel.\nThis leads to not disconnecting, which we should. For Intel\ndevices, this can lead to a firmware crash.\n\nFix this by using an int type for the channel number as well\nas the opclass, and using a (negative) value that cannot be\nencoded in the element to indicate it's not present."}], "id": "CVE-2026-90344", "lastModified": "2026-10-19T09:19:28.443", "metrics": {}, "published": "2026-09-17T17:17:33.103", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/099aadb2012d7490bc584cc5075ef11cbc33f2c3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/cf57f0a674cc3e3cda1a789359cc1238b61b9d7d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e7bc5ab93acd1c3f54feeb9fa19ead3530168090"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/eef374088450bb91626e133c7172b8a0e969a522"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[21c3f8f95554feff9bed15703e89adbe582e0383,099aadb2012d7490bc584cc5075ef11cbc33f2c3)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[21c3f8f95554feff9bed15703e89adbe582e0383,e7bc5ab93acd1c3f54feeb9fa19ead3530168090)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[21c3f8f95554feff9bed15703e89adbe582e0383,eef374088450bb91626e133c7172b8a0e969a522)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[21c3f8f95554feff9bed15703e89adbe582e0383,cf57f0a674cc3e3cda1a789359cc1238b61b9d7d)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.9"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.9)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.110,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.52,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.6,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.3-rc1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-09-19T04:45:06.168043+00:00", "updated": "2026-09-19T07:45:06.091240+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-20"]}