---
id: CVE-2023-53518
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  PM / devfreq: Fix leak in devfreq_dev_release()

  srcu_init_notifier_head() allocates resources that need to be released
  with a srcu_cleanup_notifier_head() call.

  Repor…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  PM / devfreq: Fix leak in devfreq_dev_release()

  srcu_init_notifier_head() allocates resources that need to be released
  with a srcu_cleanup_notifier_head() call.

  Repor…
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-401
vendor: linux
product: linux_kernel
affected:
  - 'linux_kernel >= 4.7, < 4.14.326'
  - 'linux_kernel >= 4.15, < 4.19.295'
  - 'linux_kernel >= 4.20, < 5.4.257'
  - 'linux_kernel >= 5.5, < 5.10.195'
  - 'linux_kernel >= 5.11, < 5.15.132'
  - 'linux_kernel >= 5.16, < 6.1.53'
  - 'linux_kernel >= 6.2, < 6.4.16'
  - 'linux_kernel >= 6.5, < 6.5.3'
patched:
  - linux_kernel 6.5.3
published: '2025-10-01'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T22:17:41.900'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2023-53518'
references:
  - url: 'https://git.kernel.org/stable/c/111bafa210ae546bee7644be730c42df9c35b66e'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/1640e9c72173911ad0fddb05012c01eafe082c4e'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/29811f4b8255d4238cf326f3bb7129784766beab'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/3354c401c68d70567d1ef25d12f4e22a7813a3c6'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/5693d077595de721f9ddbf9d37f40e5409707dfe'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/64e6e0dc2d578c0a9e31cb4edd719f0a3ed98f6d'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/7462483446cb9986568ad7adae746ce5f18d2968'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/8918025feb2f5f7c73f2495c158f22997e25cb02'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/ab192e5e5d3b48415909a8408acfd007a607bcc0'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
epss: 0.0016
epssPercentile: 0.05063
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-10-15T21:35:17.855174Z'
ingestedAt: '2026-10-15T22:48:25.408Z'
---

## Overview

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

PM / devfreq: Fix leak in devfreq_dev_release()

srcu_init_notifier_head() allocates resources that need to be released
with a srcu_cleanup_notifier_head() call.

Reported by kmemleak.

## Affected

- `linux_kernel >= 4.7, < 4.14.326`
- `linux_kernel >= 4.15, < 4.19.295`
- `linux_kernel >= 4.20, < 5.4.257`
- `linux_kernel >= 5.5, < 5.10.195`
- `linux_kernel >= 5.11, < 5.15.132`
- `linux_kernel >= 5.16, < 6.1.53`
- `linux_kernel >= 6.2, < 6.4.16`
- `linux_kernel >= 6.5, < 6.5.3`

## Remediation

Upgrade past the affected range:

- `linux_kernel 6.5.3`