CVE-2026-80937

Summary

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxe57b7901469fc0b021930b83a8094baaf3d81b09 < 5fdaf7016d7684ef756a229fd5d96b4a140eeb40affected
LinuxLinuxe57b7901469fc0b021930b83a8094baaf3d81b09 < 5f48b0d752a76590e2c613aae5345c2474627d1baffected
LinuxLinuxe57b7901469fc0b021930b83a8094baaf3d81b09 < 44b5adfe49499f53002737f5fe81d608c08122fcaffected
LinuxLinux5.8affected
LinuxLinux0 < 5.8unaffected
LinuxLinux6.18.50 <= 6.18.*unaffected
LinuxLinux7.2.4 <= 7.2.*unaffected
LinuxLinux7.3-rc1 <= *unaffected

Weaknesses

References