---
id: CVE-2023-53574
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  wifi: rtw88: delete timer and free skb queue when unloading

  Fix possible crash and memory leak on driver unload by deleting
  TX purge timer and freeing C2H queue in 'rt…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  wifi: rtw88: delete timer and free skb queue when unloading

  Fix possible crash and memory leak on driver unload by deleting
  TX purge timer and freeing C2H queue in 'rt…
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-401
vendor: linux
product: linux_kernel
affected:
  - 'linux_kernel >= 5.2, < 6.5.5'
patched:
  - linux_kernel 6.5.5
published: '2025-10-04'
updated: '2026-10-03'
sourceUpdated: '2026-10-03T11:17:28.307'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2023-53574'
references:
  - url: 'https://git.kernel.org/stable/c/4128b00a6006870e117ab1841e58f369e9284ecb'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/60ee0f6fea7ba5681ebf7d70b8ebe592227188a4'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/634fcbcaa4062db39aeb5ac6ed1bc1feb8dd5216'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
epss: 0.00127
epssPercentile: 0.02053
ingestedAt: '2026-10-03T11:43:42.109Z'
---

## Overview

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

wifi: rtw88: delete timer and free skb queue when unloading

Fix possible crash and memory leak on driver unload by deleting
TX purge timer and freeing C2H queue in 'rtw_core_deinit()',
shrink critical section in the latter by freeing COEX queue
out of TX report lock scope.

## Affected

- `linux_kernel >= 5.2, < 6.5.5`

## Remediation

Upgrade past the affected range:

- `linux_kernel 6.5.5`