{"id":"CVE-2026-90374","title":"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[]…","summary":"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[]…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 98686cd21624c75a043e96812beadddf4f6f48e5 < 535091c587268cc783608642838a655d828eefdd","Linux >= 98686cd21624c75a043e96812beadddf4f6f48e5 < 0f53ece876e1f3bbb3e18f48afc4af1ee967b16c","Linux >= 98686cd21624c75a043e96812beadddf4f6f48e5 < b1c5cf8903bec5476a2233b4e45287b9a2213e02","Linux >= 98686cd21624c75a043e96812beadddf4f6f48e5 < 2243778a5fae8329ab5f18e7adcd7e03b911a1b7","Linux 6.2"],"published":"2026-09-17","updated":"2026-09-17","sourceUpdated":"2026-09-17T17:17:36.613","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-90374","references":[{"url":"https://git.kernel.org/stable/c/0f53ece876e1f3bbb3e18f48afc4af1ee967b16c","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/2243778a5fae8329ab5f18e7adcd7e03b911a1b7","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/535091c587268cc783608642838a655d828eefdd","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/b1c5cf8903bec5476a2233b4e45287b9a2213e02","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-17T16:21:47.808Z","epss":0.002,"epssPercentile":0.10116,"slug":"CVE-2026-90374","body":"## Overview\n\nIn 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().\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}