CVE-2026-80937

Published: September 15, 2026Last modified: September 15, 2026

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7915: bound the device EEPROM address before the EFUSE copy mt7915_mcu_get_eeprom() copies a fixed EFUSE block into the driver's dev->mt76.eeprom.data buffer at the offset reported by the MCU response (res->addr, a device-controlled __le32) without checking it against the buffer size. A malicious or malfunctioning device can report an arbitrary address and drive a 16-byte out-of-bounds write 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.

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References

• https://git.kernel.org/stable/c/44b5adfe49499f53002737f5fe81d608c08122fc
• https://git.kernel.org/stable/c/5f48b0d752a76590e2c613aae5345c2474627d1b
• https://git.kernel.org/stable/c/5fdaf7016d7684ef756a229fd5d96b4a140eeb40