---
id: CVE-2026-74323
title: 'wifi: mt76: mt7996: Fix possible token leak in mt7996_tx_prepare_skb()'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  wifi: mt76: mt7996: Fix possible token leak in mt7996_tx_prepare_skb()

  If link_conf or link_sta lookup fails in mt7996_tx_prepare_skb routine,
  mt7996 driver leaks an a…
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cvssSource: cna
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 7ef0c7ad735b0c38140259519a3f165bee2b857c <
    06e65d6cf80490bc0457d339595d1ed5a89e8899
  - >-
    Linux >= 7ef0c7ad735b0c38140259519a3f165bee2b857c <
    fa0e9aa92a7bc97fc42014c5efaaf1278fa92723
  - >-
    Linux >= 7ef0c7ad735b0c38140259519a3f165bee2b857c <
    831074096d0450308357271fc0ffd3f600a2487e
  - Linux 6.18
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-10-16T18:53:25.848745Z'
published: '2026-08-15'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T18:55:33.088Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-74323'
references:
  - url: 'https://git.kernel.org/stable/c/06e65d6cf80490bc0457d339595d1ed5a89e8899'
  - url: 'https://git.kernel.org/stable/c/fa0e9aa92a7bc97fc42014c5efaaf1278fa92723'
  - url: 'https://git.kernel.org/stable/c/831074096d0450308357271fc0ffd3f600a2487e'
tags:
  - cve.org
epss: 0.00375
epssPercentile: 0.29893
ingestedAt: '2026-10-16T19:46:24.378Z'
---

## Overview

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

wifi: mt76: mt7996: Fix possible token leak in mt7996_tx_prepare_skb()

If link_conf or link_sta lookup fails in mt7996_tx_prepare_skb routine,
mt7996 driver leaks an already allocated tx token. Fix the issue
releasing the token in case of error.

## Affected

- `Linux >= 7ef0c7ad735b0c38140259519a3f165bee2b857c < 06e65d6cf80490bc0457d339595d1ed5a89e8899`
- `Linux >= 7ef0c7ad735b0c38140259519a3f165bee2b857c < fa0e9aa92a7bc97fc42014c5efaaf1278fa92723`
- `Linux >= 7ef0c7ad735b0c38140259519a3f165bee2b857c < 831074096d0450308357271fc0ffd3f600a2487e`
- `Linux 6.18`

## Remediation

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