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.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 6.1.191, 6.12.112, 6.18.50, 6.6.160, 7.2.4
- CVEs
- CVE-2026-80937
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 6 Nov 2026, 17:44 UTC · Revision 1
Source evidence
wifi: mt76: mt7915: bound the device EEPROM address before the EFUSE copy
core-osv · Original sourcePublished 11 Sept 2026, 19:42 UTC
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.
osv:CVE-2026-80937
Kernel
Fixed versions: 6.1.191, 6.6.160, 6.12.112, 6.18.50, 7.2.4
Complete source record
{
"id": "eb614ad552674b662406ef6e75835b48a8487ee65f0ad8b1265f5e429939e9d0",
"url": "https://osv.dev/vulnerability/CVE-2026-80937",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "wifi: mt76: mt7915: bound the device EEPROM address before the EFUSE copy",
"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.",
"evidence": "osv:CVE-2026-80937",
"products": [
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"name": {
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"evidence": "/affected/1/package/name"
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"evidence": "/affected/1/ranges"
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{
"value": "6.6.160",
"evidence": "/affected/1/ranges"
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{
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{
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{
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"severity": "high",
"structured": {
"id": "CVE-2026-80937",
"aliases": [
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"metrics": [
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"type": "CVSS_V3",
"score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
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"affected": [
{
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{
"type": "ECOSYSTEM",
"events": [
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{
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],
"package": {
"name": "Kernel",
"ecosystem": "Linux"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80937.json"
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],
"modified": "2026-11-01T02:30:19.463502607Z",
"provider": "osv",
"references": [
"https://git.kernel.org/stable/c/394e8cb56fc732d71041599cdb4e01f82cfd11c5",
"https://git.kernel.org/stable/c/44b5adfe49499f53002737f5fe81d608c08122fc",
"https://git.kernel.org/stable/c/5f48b0d752a76590e2c613aae5345c2474627d1b",
"https://git.kernel.org/stable/c/5fdaf7016d7684ef756a229fd5d96b4a140eeb40",
"https://git.kernel.org/stable/c/d6774f6af3711143a93281904a928a78652c8b7e",
"https://git.kernel.org/stable/c/ef10a2ec2a74c4a6aa5c086fc0c2b01037569134",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80937.json",
"https://nvd.nist.gov/vuln/detail/CVE-2026-80937",
"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
],
"provider_metadata": {
"cna_assigner": "Linux",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80937.json"
}
},
"related_cves": [
{
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"evidence": "/id"
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"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 515817,
"published_at": "2026-09-11T19:42:10.822+00:00"
}