---
id: CVE-2025-21924
title: >-
  In the Linux kernel, the following vulnerability has been resolved:


  net: hns3: make sure ptp clock is unregister and freed if hclge_ptp_get_cycle
  returns an error


  During the initialization of ptp, hclge_ptp_get_cycle might return an er…
summary: >-
  In the Linux kernel, the following vulnerability has been resolved:


  net: hns3: make sure ptp clock is unregister and freed if hclge_ptp_get_cycle
  returns an error


  During the initialization of ptp, hclge_ptp_get_cycle might return an er…
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-459
vendor: linux
product: linux_kernel
affected:
  - 'linux_kernel >= 5.14.1, < 5.15.179'
  - 'linux_kernel >= 5.16, < 6.1.131'
  - 'linux_kernel >= 6.2, < 6.6.83'
  - 'linux_kernel >= 6.7, < 6.12.19'
  - 'linux_kernel >= 6.13, < 6.13.7'
  - linux_kernel = 5.14
  - linux_kernel = 6.14
patched:
  - linux_kernel 6.13.7
published: '2025-04-01'
updated: '2026-07-30'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-21924'
references:
  - url: 'https://git.kernel.org/stable/c/21dba813d9821687a7f9aff576798ba21a859a32'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/2c04e507f3a5c5dc6e2b9ab37d8cdedee1ef1a37'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/33244e98aa9503585e585335fe2ceb4492630949'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/9cfc43c0e6e6a31122b4008d763a2960c206aa2d'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/b7365eab39831487a84e63a9638209b68dc54008'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/b7d8d4529984e2d4a72a6d552fb886233e8e83cb'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.00212
epssPercentile: 0.10349
ingestedAt: '2026-07-30T13:54:11.678Z'
---

## Overview

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

net: hns3: make sure ptp clock is unregister and freed if hclge_ptp_get_cycle returns an error

During the initialization of ptp, hclge_ptp_get_cycle might return an error
and returned directly without unregister clock and free it. To avoid that,
call hclge_ptp_destroy_clock to unregist and free clock if
hclge_ptp_get_cycle failed.

## Affected

- `linux_kernel >= 5.14.1, < 5.15.179`
- `linux_kernel >= 5.16, < 6.1.131`
- `linux_kernel >= 6.2, < 6.6.83`
- `linux_kernel >= 6.7, < 6.12.19`
- `linux_kernel >= 6.13, < 6.13.7`
- `linux_kernel = 5.14`
- `linux_kernel = 6.14`

## Remediation

Upgrade past the affected range:

- `linux_kernel 6.13.7`