---
id: CVE-2025-68177
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  cpufreq/longhaul: handle NULL policy in longhaul_exit

  longhaul_exit() was calling cpufreq_cpu_get(0) without checking
  for a NULL policy pointer
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  cpufreq/longhaul: handle NULL policy in longhaul_exit

  longhaul_exit() was calling cpufreq_cpu_get(0) without checking
  for a NULL policy pointer. On some systems, this …
severity: none
published: '2025-12-16'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T13:10:00.187'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-68177'
references:
  - url: 'https://git.kernel.org/stable/c/55cf586b9556863e3c2a45460aba71bcb2be5bcd'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/592532a77b736b5153e0c2e4c74aa50af0a352ab'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/64adabb6d9d51b7e7c02fe733346a2c4dd738488'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/809cf2a7794ca4c14c304b349f4c3ae220701ce4'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/8d6791c480f22d6e9a566eaa77336d3d37c5c591'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/956b56d17a89775e4957bbddefa45cd3c6c71000'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/b02352dd2e6cca98777714cc2a27553191df70db'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/fd93e1d71b3b14443092919be12b1abf08de35eb'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
epss: 0.00212
epssPercentile: 0.1064
ingestedAt: '2026-10-14T13:30:58.445Z'
---

## Overview

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

cpufreq/longhaul: handle NULL policy in longhaul_exit

longhaul_exit() was calling cpufreq_cpu_get(0) without checking
for a NULL policy pointer. On some systems, this could lead to a
NULL dereference and a kernel warning or panic.

This patch adds a check using unlikely() and returns early if the
policy is NULL.

Bugzilla: #219962

## Remediation

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