---
id: CVE-2026-90370
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  wifi: mt76: mt7996: bound TLV walk in mt7996_mcu_get_chip_config

  The response TLV loop advanced by tlv->len without a minimum, so a
  theoretical firmware response conta…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  wifi: mt76: mt7996: bound TLV walk in mt7996_mcu_get_chip_config

  The response TLV loop advanced by tlv->len without a minimum, so a
  theoretical firmware response conta…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 5d33053be609abfcfa9f5ca75d5554f2109aa40b <
    3106f62809d45c1e6aadfad1f4d7c3f74cd53a96
  - >-
    Linux >= 5d33053be609abfcfa9f5ca75d5554f2109aa40b <
    39aa6b853b6d69dd1fee3507efdb3c277b7c53e6
  - >-
    Linux >= 5d33053be609abfcfa9f5ca75d5554f2109aa40b <
    d0bb2189ade617e624f3c8f444ebb05f59bb2524
  - >-
    Linux >= 5d33053be609abfcfa9f5ca75d5554f2109aa40b <
    93eaddfdd35aa6bfe570c087db4e97fb9d8a791a
  - >-
    Linux >= 5d33053be609abfcfa9f5ca75d5554f2109aa40b <
    44af52467e72094351a362bf69effd52f1d9c186
  - Linux 6.3
published: '2026-09-17'
updated: '2026-09-17'
sourceUpdated: '2026-09-17T17:17:36.147'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-90370'
references:
  - url: 'https://git.kernel.org/stable/c/3106f62809d45c1e6aadfad1f4d7c3f74cd53a96'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/39aa6b853b6d69dd1fee3507efdb3c277b7c53e6'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/44af52467e72094351a362bf69effd52f1d9c186'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/93eaddfdd35aa6bfe570c087db4e97fb9d8a791a'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/d0bb2189ade617e624f3c8f444ebb05f59bb2524'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-17T16:21:47.809Z'
epss: 0.002
epssPercentile: 0.08759
---

## Overview

In the Linux kernel, the following vulnerability has been resolved:

wifi: mt76: mt7996: bound TLV walk in mt7996_mcu_get_chip_config

The response TLV loop advanced by tlv->len without a minimum, so a
theoretical firmware response containing a zero-length TLV could spin
forever, hanging the CPU during device probe.
The u32 payload was also read without bounds checking.
Reject a short fixed field, stop on a TLV whose length underruns the
header or overruns the skb.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.