CVE-2026-90374

Summary

In the Linux kernel, the following vulnerability has been resolved:

wifi: mt76: mt7996: validate RX band_idx before dereferencing phys[]

band_idx comes from a 2-bit descriptor field (0-3) and was used directly to index dev->mt76.phys[] (size __MT_MAX_BAND == 3) and dereference the result. A corrupt or reserved descriptor value could index out of bounds or hit a NULL phy on parts with fewer bands. Reject invalid band indices, mirroring mt7996_rx_get_wcid().

Affected Software

VendorProductVersion RangeStatus
LinuxLinux98686cd21624c75a043e96812beadddf4f6f48e5 < 535091c587268cc783608642838a655d828eefddaffected
LinuxLinux98686cd21624c75a043e96812beadddf4f6f48e5 < 0f53ece876e1f3bbb3e18f48afc4af1ee967b16caffected
LinuxLinux98686cd21624c75a043e96812beadddf4f6f48e5 < b1c5cf8903bec5476a2233b4e45287b9a2213e02affected
LinuxLinux98686cd21624c75a043e96812beadddf4f6f48e5 < 2243778a5fae8329ab5f18e7adcd7e03b911a1b7affected
LinuxLinux6.2affected
LinuxLinux0 < 6.2unaffected
LinuxLinux6.12.110 <= 6.12.*unaffected
LinuxLinux6.18.52 <= 6.18.*unaffected
LinuxLinux7.2.6 <= 7.2.*unaffected
LinuxLinux7.3-rc1 <= *unaffected

Weaknesses

References