{"id":"CVE-2026-93791","state":"PUBLISHED","title":"wifi: iwlwifi: mvm: add a check on the tid coming from the firmware","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: iwlwifi: mvm: add a check on the tid coming from the firmware\n\nba_notif->tid is a firmware-controlled u8 that is used directly\nas an array index into tid_data[] without any validation. Add a\nbounds check against IWL_MAX_TID_COUNT before dereferencing the\narray.","publishedAt":"2026-09-24T16:02:24.968Z","updatedAt":"2026-10-30T12:36:42.840Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"c46e7724bfe9bbff17bc468903a757248b99e4ed","status":"affected","lessThan":"03084a2c61838ce6a12f082025cbf9ed869f0492","versionType":"git"},{"version":"c46e7724bfe9bbff17bc468903a757248b99e4ed","status":"affected","lessThan":"0f690fd3b5535d110898b99ae6214f29c9060941","versionType":"git"},{"version":"c46e7724bfe9bbff17bc468903a757248b99e4ed","status":"affected","lessThan":"0b5325a0771674f1d65618de7db3df9d49186a12","versionType":"git"},{"version":"c46e7724bfe9bbff17bc468903a757248b99e4ed","status":"affected","lessThan":"59f64c2839022f41a7867b38f9e38c185ff39283","versionType":"git"},{"version":"c46e7724bfe9bbff17bc468903a757248b99e4ed","status":"affected","lessThan":"0e4c0d83267261cf67ec9690856edf4a56bb7dfc","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/intel/iwlwifi/mvm/tx.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.9","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.9","versionType":"semver"},{"version":"6.1.191","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.158","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.111","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.53","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/intel/iwlwifi/mvm/tx.c"]}],"references":["https://git.kernel.org/stable/c/03084a2c61838ce6a12f082025cbf9ed869f0492","https://git.kernel.org/stable/c/0f690fd3b5535d110898b99ae6214f29c9060941","https://git.kernel.org/stable/c/0b5325a0771674f1d65618de7db3df9d49186a12","https://git.kernel.org/stable/c/59f64c2839022f41a7867b38f9e38c185ff39283","https://git.kernel.org/stable/c/0e4c0d83267261cf67ec9690856edf4a56bb7dfc"],"weaknesses":[],"ingestedAt":"2026-10-30T12:56:04.490Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/93xxx/CVE-2026-93791.json","commit":"1f312381e38164a43607eebab851b151dd16861e","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-93791","state":"PUBLISHED","datePublished":"2026-09-24T16:02:24.968Z","dateUpdated":"2026-10-30T12:36:42.840Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-18T17:59:28.788Z"},"containers":{"cna":{"title":"wifi: iwlwifi: mvm: add a check on the tid coming from the firmware","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: iwlwifi: mvm: add a check on the tid coming from the firmware\n\nba_notif->tid is a firmware-controlled u8 that is used directly\nas an array index into tid_data[] without any validation. Add a\nbounds check against IWL_MAX_TID_COUNT before dereferencing the\narray."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"c46e7724bfe9bbff17bc468903a757248b99e4ed","status":"affected","lessThan":"03084a2c61838ce6a12f082025cbf9ed869f0492","versionType":"git"},{"version":"c46e7724bfe9bbff17bc468903a757248b99e4ed","status":"affected","lessThan":"0f690fd3b5535d110898b99ae6214f29c9060941","versionType":"git"},{"version":"c46e7724bfe9bbff17bc468903a757248b99e4ed","status":"affected","lessThan":"0b5325a0771674f1d65618de7db3df9d49186a12","versionType":"git"},{"version":"c46e7724bfe9bbff17bc468903a757248b99e4ed","status":"affected","lessThan":"59f64c2839022f41a7867b38f9e38c185ff39283","versionType":"git"},{"version":"c46e7724bfe9bbff17bc468903a757248b99e4ed","status":"affected","lessThan":"0e4c0d83267261cf67ec9690856edf4a56bb7dfc","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/intel/iwlwifi/mvm/tx.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.9","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.9","versionType":"semver"},{"version":"6.1.191","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.158","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.111","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.53","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/intel/iwlwifi/mvm/tx.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/03084a2c61838ce6a12f082025cbf9ed869f0492"},{"url":"https://git.kernel.org/stable/c/0f690fd3b5535d110898b99ae6214f29c9060941"},{"url":"https://git.kernel.org/stable/c/0b5325a0771674f1d65618de7db3df9d49186a12"},{"url":"https://git.kernel.org/stable/c/59f64c2839022f41a7867b38f9e38c185ff39283"},{"url":"https://git.kernel.org/stable/c/0e4c0d83267261cf67ec9690856edf4a56bb7dfc"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-30T12:36:42.840Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.9","versionEndExcluding":"6.1.191"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.9","versionEndExcluding":"6.6.158"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.9","versionEndExcluding":"6.12.111"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.9","versionEndExcluding":"6.18.53"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.9","versionEndExcluding":"7.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}