{"id":"CVE-2026-90374","state":"PUBLISHED","title":"wifi: mt76: mt7996: validate RX band_idx before dereferencing phys[]","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7996: validate RX band_idx before dereferencing phys[]\n\nband_idx comes from a 2-bit descriptor field (0-3) and was used directly\nto index dev->mt76.phys[] (size __MT_MAX_BAND == 3) and dereference the\nresult. A corrupt or reserved descriptor value could index out of bounds\nor hit a NULL phy on parts with fewer bands. Reject invalid band indices,\nmirroring mt7996_rx_get_wcid().","publishedAt":"2026-09-17T16:09:14.067Z","updatedAt":"2026-10-21T12:51:23.581Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"98686cd21624c75a043e96812beadddf4f6f48e5","status":"affected","lessThan":"493a029c205a994644327d554f0cfeb9651aba7c","versionType":"git"},{"version":"98686cd21624c75a043e96812beadddf4f6f48e5","status":"affected","lessThan":"535091c587268cc783608642838a655d828eefdd","versionType":"git"},{"version":"98686cd21624c75a043e96812beadddf4f6f48e5","status":"affected","lessThan":"0f53ece876e1f3bbb3e18f48afc4af1ee967b16c","versionType":"git"},{"version":"98686cd21624c75a043e96812beadddf4f6f48e5","status":"affected","lessThan":"b1c5cf8903bec5476a2233b4e45287b9a2213e02","versionType":"git"},{"version":"98686cd21624c75a043e96812beadddf4f6f48e5","status":"affected","lessThan":"2243778a5fae8329ab5f18e7adcd7e03b911a1b7","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/mediatek/mt76/mt7996/mac.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.2","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.2","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.110","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.52","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.6","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","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/mediatek/mt76/mt7996/mac.c"]}],"references":["https://git.kernel.org/stable/c/493a029c205a994644327d554f0cfeb9651aba7c","https://git.kernel.org/stable/c/535091c587268cc783608642838a655d828eefdd","https://git.kernel.org/stable/c/0f53ece876e1f3bbb3e18f48afc4af1ee967b16c","https://git.kernel.org/stable/c/b1c5cf8903bec5476a2233b4e45287b9a2213e02","https://git.kernel.org/stable/c/2243778a5fae8329ab5f18e7adcd7e03b911a1b7"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:34.582Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/90xxx/CVE-2026-90374.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-90374","state":"PUBLISHED","datePublished":"2026-09-17T16:09:14.067Z","dateUpdated":"2026-10-21T12:51:23.581Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-11T19:38:34.808Z"},"containers":{"cna":{"title":"wifi: mt76: mt7996: validate RX band_idx before dereferencing phys[]","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7996: validate RX band_idx before dereferencing phys[]\n\nband_idx comes from a 2-bit descriptor field (0-3) and was used directly\nto index dev->mt76.phys[] (size __MT_MAX_BAND == 3) and dereference the\nresult. A corrupt or reserved descriptor value could index out of bounds\nor hit a NULL phy on parts with fewer bands. Reject invalid band indices,\nmirroring mt7996_rx_get_wcid()."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"98686cd21624c75a043e96812beadddf4f6f48e5","status":"affected","lessThan":"493a029c205a994644327d554f0cfeb9651aba7c","versionType":"git"},{"version":"98686cd21624c75a043e96812beadddf4f6f48e5","status":"affected","lessThan":"535091c587268cc783608642838a655d828eefdd","versionType":"git"},{"version":"98686cd21624c75a043e96812beadddf4f6f48e5","status":"affected","lessThan":"0f53ece876e1f3bbb3e18f48afc4af1ee967b16c","versionType":"git"},{"version":"98686cd21624c75a043e96812beadddf4f6f48e5","status":"affected","lessThan":"b1c5cf8903bec5476a2233b4e45287b9a2213e02","versionType":"git"},{"version":"98686cd21624c75a043e96812beadddf4f6f48e5","status":"affected","lessThan":"2243778a5fae8329ab5f18e7adcd7e03b911a1b7","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/mediatek/mt76/mt7996/mac.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.2","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.2","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.110","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.52","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.6","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","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/mediatek/mt76/mt7996/mac.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/493a029c205a994644327d554f0cfeb9651aba7c"},{"url":"https://git.kernel.org/stable/c/535091c587268cc783608642838a655d828eefdd"},{"url":"https://git.kernel.org/stable/c/0f53ece876e1f3bbb3e18f48afc4af1ee967b16c"},{"url":"https://git.kernel.org/stable/c/b1c5cf8903bec5476a2233b4e45287b9a2213e02"},{"url":"https://git.kernel.org/stable/c/2243778a5fae8329ab5f18e7adcd7e03b911a1b7"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-21T12:51:23.581Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"6.6.160"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"6.12.110"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"6.18.52"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"7.2.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}