wifi: mt76: mt7915: bound the device EEPROM address before the EFUSE copy
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.
CVE-2026-80937
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-80937
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "e57b7901469fc0b021930b83a8094baaf3d81b09",
"lessThan": "d6774f6af3711143a93281904a928a78652c8b7e",
"versionType": "git"
},
{
"status": "affected",
"version": "e57b7901469fc0b021930b83a8094baaf3d81b09",
"lessThan": "394e8cb56fc732d71041599cdb4e01f82cfd11c5",
"versionType": "git"
},
{
"status": "affected",
"version": "e57b7901469fc0b021930b83a8094baaf3d81b09",
"lessThan": "5fdaf7016d7684ef756a229fd5d96b4a140eeb40",
"versionType": "git"
},
{
"status": "affected",
"version": "e57b7901469fc0b021930b83a8094baaf3d81b09",
"lessThan": "5f48b0d752a76590e2c613aae5345c2474627d1b",
"versionType": "git"
},
{
"status": "affected",
"version": "e57b7901469fc0b021930b83a8094baaf3d81b09",
"lessThan": "44b5adfe49499f53002737f5fe81d608c08122fc",
"versionType": "git"
}
],
"programFiles": [
"drivers/net/wireless/mediatek/mt76/mt7915/mcu.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.8"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.8",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.160",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.112",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.50",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.4",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/net/wireless/mediatek/mt76/mt7915/mcu.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-80937
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #46648 · Revision 1
- Added to Heist Feed
- Publisher date