CVE-2026-80935

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> wifi: mt76: mt7996: bound the device EEPROM address before the EFUSE copy<br /> <br /> mt7996_mcu_get_eeprom() derives the destination of the EFUSE/EXT block<br /> copy from the address reported by the MCU response (event-&gt;addr, a<br /> device-controlled __le32) and clamps only the copy length, never the<br /> destination offset into dev-&gt;mt76.eeprom.data. A malicious or<br /> malfunctioning device can report an arbitrary address and drive an<br /> out-of-bounds write of up to MT7996_EXT_EEPROM_BLOCK_SIZE bytes past<br /> eeprom.data.<br /> <br /> Reject a response whose address would place the copy outside eeprom.data<br /> before deriving the destination pointer. Devices that echo the requested<br /> in-bounds offset are unaffected.