---
id: CVE-2026-23315
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  wifi: mt76: Fix possible oob access in mt76_connac2_mac_write_txwi_80211()

  Check frame length before accessing the mgmt fields in
  mt76_connac2_mac_write_txwi_80211 in …
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  wifi: mt76: Fix possible oob access in mt76_connac2_mac_write_txwi_80211()

  Check frame length before accessing the mgmt fields in
  mt76_connac2_mac_write_txwi_80211 in …
severity: high
cvss: 7.1
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H'
cwe:
  - CWE-125
vendor: linux
product: linux_kernel
affected:
  - 'linux_kernel >= 5.10.1, < 6.1.167'
  - 'linux_kernel >= 6.2, < 6.6.130'
  - 'linux_kernel >= 6.7, < 6.12.77'
  - 'linux_kernel >= 6.13, < 6.18.17'
  - 'linux_kernel >= 6.19, < 6.19.7'
  - linux_kernel = 5.10
  - linux_kernel = 7.0
patched:
  - linux_kernel 6.19.7
published: '2026-03-25'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T02:18:49.120'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-23315'
references:
  - url: 'https://git.kernel.org/stable/c/0fb3b94a9431a3800717e5c3b6fa2e1045a15029'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/4e10a730d1b511ff49723371ed6d694dd1b2c785'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/7ae7b093b7dba9548a3bc4766b9364b97db4732d'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/7b692dff8df0ba5feb8df00f27d906d6eb1fe627'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/84419556359bc96d3fe1623d47a64c86542566cc'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/9612d91f617231e03c49cb9b0c02f975a3b4f51f'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-784472.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
tags:
  - nvd
  - cve.org
epss: 0.00126
epssPercentile: 0.0204
ingestedAt: '2026-10-15T03:30:12.842Z'
---

## Overview

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

wifi: mt76: Fix possible oob access in mt76_connac2_mac_write_txwi_80211()

Check frame length before accessing the mgmt fields in
mt76_connac2_mac_write_txwi_80211 in order to avoid a possible oob
access.

[fix check to also cover mgmt->u.action.u.addba_req.capab,
correct Fixes tag]

## Affected

- `linux_kernel >= 5.10.1, < 6.1.167`
- `linux_kernel >= 6.2, < 6.6.130`
- `linux_kernel >= 6.7, < 6.12.77`
- `linux_kernel >= 6.13, < 6.18.17`
- `linux_kernel >= 6.19, < 6.19.7`
- `linux_kernel = 5.10`
- `linux_kernel = 7.0`

## Remediation

Upgrade past the affected range:

- `linux_kernel 6.19.7`