CVE-2026-80937

wifi: mt76: mt7915: bound the device EEPROM address before the EFUSE copy

HIGH
8.8
CVSS Score
Published: September 11, 2026 at 07:42 PM UTC
Updated: October 21, 2026 at 01:20 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH8.8
Exploit prediction
EPSS 0.3%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

5.8e57b7901469fc0b021930b83a8094baaf3d81b09
Vendor states this is fixed in 394e8cb56fc732d71041599cdb4e01f82cfd11c5 (fixed)
Vendor states this is fixed in 44b5adfe49499f53002737f5fe81d608c08122fc (fixed)
Vendor states this is fixed in 5f48b0d752a76590e2c613aae5345c2474627d1b (fixed)
Vendor states this is fixed in 5fdaf7016d7684ef756a229fd5d96b4a140eeb40 (fixed)
Vendor states this is fixed in 5.8 (unaffected)
Vendor states this is fixed in 6.12.112 (unaffected)
Vendor states this is fixed in 6.18.50 (unaffected)
Vendor states this is fixed in 6.6.160 (unaffected)
Vendor states this is fixed in 7.2.4 (unaffected)
Vendor states this is fixed in 7.3 (unaffected)
Vendor states this is fixed in 7.3-rc1 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

CVSS

8.8HIGHLinux
Vector?

Quick Info

StatusRECEIVED

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