---
id: CVE-2023-53466
title: 'wifi: mt76: mt7915: fix memory leak in mt7915_mcu_exit'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  wifi: mt76: mt7915: fix memory leak in mt7915_mcu_exit

  Always purge mcu skb queues in mt7915_mcu_exit routine even if
  mt7915_firmware_state fails.
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= e57b7901469fc0b021930b83a8094baaf3d81b09 <
    4cbb876153b63fe248200f734069c6881cf97722
  - >-
    Linux >= e57b7901469fc0b021930b83a8094baaf3d81b09 <
    3095fe1e1d3198e62a3c7116c4cf7c734871475f
  - >-
    Linux >= e57b7901469fc0b021930b83a8094baaf3d81b09 <
    49bd78282e79ad177d14f37f4049f0605bf92dad
  - Linux 5.8
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-05T20:21:38.447826Z'
published: '2025-10-01'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T20:31:10.530Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2023-53466'
references:
  - url: 'https://git.kernel.org/stable/c/4cbb876153b63fe248200f734069c6881cf97722'
  - url: 'https://git.kernel.org/stable/c/3095fe1e1d3198e62a3c7116c4cf7c734871475f'
  - url: 'https://git.kernel.org/stable/c/49bd78282e79ad177d14f37f4049f0605bf92dad'
tags:
  - cve.org
epss: 0.00157
epssPercentile: 0.04906
ingestedAt: '2026-11-05T22:38:31.799Z'
---

## Overview

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

wifi: mt76: mt7915: fix memory leak in mt7915_mcu_exit

Always purge mcu skb queues in mt7915_mcu_exit routine even if
mt7915_firmware_state fails.

## Affected

- `Linux >= e57b7901469fc0b021930b83a8094baaf3d81b09 < 4cbb876153b63fe248200f734069c6881cf97722`
- `Linux >= e57b7901469fc0b021930b83a8094baaf3d81b09 < 3095fe1e1d3198e62a3c7116c4cf7c734871475f`
- `Linux >= e57b7901469fc0b021930b83a8094baaf3d81b09 < 49bd78282e79ad177d14f37f4049f0605bf92dad`
- `Linux 5.8`

## Remediation

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