{"id":"CVE-2026-90374","summary":"wifi: mt76: mt7996: validate RX band_idx before dereferencing phys[]","details":"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-\u003emt76.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().","modified":"2026-09-19T03:47:26.091322900Z","published":"2026-09-17T16:09:14.067Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90374.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/0f53ece876e1f3bbb3e18f48afc4af1ee967b16c"},{"type":"WEB","url":"https://git.kernel.org/stable/c/2243778a5fae8329ab5f18e7adcd7e03b911a1b7"},{"type":"WEB","url":"https://git.kernel.org/stable/c/535091c587268cc783608642838a655d828eefdd"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b1c5cf8903bec5476a2233b4e45287b9a2213e02"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90374.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-90374"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"98686cd21624c75a043e96812beadddf4f6f48e5"},{"fixed":"535091c587268cc783608642838a655d828eefdd"},{"fixed":"0f53ece876e1f3bbb3e18f48afc4af1ee967b16c"},{"fixed":"b1c5cf8903bec5476a2233b4e45287b9a2213e02"},{"fixed":"2243778a5fae8329ab5f18e7adcd7e03b911a1b7"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90374.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.12.110"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.52"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.6"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90374.json"}}],"schema_version":"1.9.0"}