CVE-2026-80935

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

wifi: mt76: mt7996: bound the device EEPROM address before the EFUSE copy

mt7996 mcu get eeprom() derives the destination of the EFUSE/EXT block copy from the address reported by the MCU response (event->addr, a device-controlled le32) and clamps only the copy length, never the destination offset into dev->mt76.eeprom.data. A malicious or malfunctioning device can report an arbitrary address and drive an out-of-bounds write of up to MT7996 EXT EEPROM BLOCK SIZE bytes past eeprom.data.

Reject a response whose address would place the copy outside eeprom.data before deriving the destination pointer. Devices that echo the requested in-bounds offset are unaffected.