---
id: CVE-2025-23137
title: 'cpufreq/amd-pstate: Add missing NULL ptr check in amd_pstate_update'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  cpufreq/amd-pstate: Add missing NULL ptr check in amd_pstate_update

  Check if policy is NULL before dereferencing it in amd_pstate_update.
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= e8f555daacd3377bf691fdda2490c0b164e00085 <
    82b6dfff0d6000b14b271f74e43d672d81fb390e
  - >-
    Linux >= e8f555daacd3377bf691fdda2490c0b164e00085 <
    b99c1c63d88c75a4dc5487c3696cda38697b8d35
  - >-
    Linux >= e8f555daacd3377bf691fdda2490c0b164e00085 <
    426db24d4db2e4f0d6720aeb7795eafcb9e82640
  - Linux 6.11
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-05T20:39:17.426578Z'
published: '2025-04-16'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T20:41:51.394Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2025-23137'
references:
  - url: 'https://git.kernel.org/stable/c/82b6dfff0d6000b14b271f74e43d672d81fb390e'
  - url: 'https://git.kernel.org/stable/c/b99c1c63d88c75a4dc5487c3696cda38697b8d35'
  - url: 'https://git.kernel.org/stable/c/426db24d4db2e4f0d6720aeb7795eafcb9e82640'
tags:
  - cve.org
epss: 0.00187
epssPercentile: 0.08348
ingestedAt: '2026-11-05T22:38:31.863Z'
---

## Overview

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

cpufreq/amd-pstate: Add missing NULL ptr check in amd_pstate_update

Check if policy is NULL before dereferencing it in amd_pstate_update.

## Affected

- `Linux >= e8f555daacd3377bf691fdda2490c0b164e00085 < 82b6dfff0d6000b14b271f74e43d672d81fb390e`
- `Linux >= e8f555daacd3377bf691fdda2490c0b164e00085 < b99c1c63d88c75a4dc5487c3696cda38697b8d35`
- `Linux >= e8f555daacd3377bf691fdda2490c0b164e00085 < 426db24d4db2e4f0d6720aeb7795eafcb9e82640`
- `Linux 6.11`

## Remediation

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