---
id: CVE-2025-40299
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  gve: Implement gettimex64 with -EOPNOTSUPP

  gve implemented a ptp_clock for sole use of do_aux_work at this time.
  ptp_clock_gettime() and ptp_sys_offset() assume every …
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  gve: Implement gettimex64 with -EOPNOTSUPP

  gve implemented a ptp_clock for sole use of do_aux_work at this time.
  ptp_clock_gettime() and ptp_sys_offset() assume every …
severity: none
published: '2025-12-08'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T22:10:00.210'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-40299'
references:
  - url: 'https://git.kernel.org/stable/c/6ab753b5d8e521616cd9bd10b09891cbeb7e0235'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/96ec90412ceb58c73fd3714e40ab2cee1eedac3b'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
epss: 0.00185
epssPercentile: 0.07515
ingestedAt: '2026-10-14T23:00:02.017Z'
---

## Overview

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

gve: Implement gettimex64 with -EOPNOTSUPP

gve implemented a ptp_clock for sole use of do_aux_work at this time.
ptp_clock_gettime() and ptp_sys_offset() assume every ptp_clock has
implemented either gettimex64 or gettime64. Stub gettimex64 and return
-EOPNOTSUPP to prevent NULL dereferencing.

## Remediation

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