Description
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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
98686cd21624c75a043e96812beadddf4f6f48e5 to < 4892be1ef0bbe6db6b13bf46cb79b6706bb5b214affected98686cd21624c75a043e96812beadddf4f6f48e5 to < 388f471ca4758f644394b681ce97677a4d0e772caffected98686cd21624c75a043e96812beadddf4f6f48e5 to < 9e5abb5e2ade0b6fd0e47209711115d47a255176affected98686cd21624c75a043e96812beadddf4f6f48e5 to < 6be59da2063d5b3522bfde8aae0487ec095eb384affected98686cd21624c75a043e96812beadddf4f6f48e5 to < 13b3c29a782033ce4a230be9e5618032813dbcd4affected
Linux Linux
Default version status: affected
6.2affected0 to < 6.2unaffected6.6.160 to ≤ 6.6.*unaffected6.12.112 to ≤ 6.12.*unaffected6.18.52 to ≤ 6.18.*unaffected7.2.4 to ≤ 7.2.*unaffected7.3 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/4892be1ef0bbe6db6b13bf46cb79b6706bb5b214 ↗
- https://git.kernel.org/stable/c/388f471ca4758f644394b681ce97677a4d0e772c ↗
- https://git.kernel.org/stable/c/9e5abb5e2ade0b6fd0e47209711115d47a255176 ↗
- https://git.kernel.org/stable/c/6be59da2063d5b3522bfde8aae0487ec095eb384 ↗
- https://git.kernel.org/stable/c/13b3c29a782033ce4a230be9e5618032813dbcd4 ↗