---
id: CVE-2025-68732
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  gpu: host1x: Fix race in syncpt alloc/free

  Fix race condition between host1x_syncpt_alloc()
  and host1x_syncpt_put() by using kref_put_mutex()
  instead of kref_put() + m…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  gpu: host1x: Fix race in syncpt alloc/free

  Fix race condition between host1x_syncpt_alloc()
  and host1x_syncpt_put() by using kref_put_mutex()
  instead of kref_put() + m…
severity: none
published: '2025-12-24'
updated: '2026-10-13'
sourceUpdated: '2026-10-13T11:10:00.203'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-68732'
references:
  - url: 'https://git.kernel.org/stable/c/4aeaece518fa4436af93d1d8b786200d9656ff4b'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/4e6e07ce0197aecfb6c4a62862acc93b3efedeb7'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/6245cce711e2cdb2cc75c0bb8632952e36f8c972'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/79197c6007f2afbfd7bcf5b9b80ccabf8483d774'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/c7d393267c497502fa737607f435f05dfe6e3d9b'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/ca9388fba50dac2eb71c13702b7022a801bef90e'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/d138f73ffb0c57ded473c577719e6e551b7b1f27'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
epss: 0.00193
epssPercentile: 0.08286
ingestedAt: '2026-10-13T11:23:51.159Z'
---

## Overview

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

gpu: host1x: Fix race in syncpt alloc/free

Fix race condition between host1x_syncpt_alloc()
and host1x_syncpt_put() by using kref_put_mutex()
instead of kref_put() + manual mutex locking.

This ensures no thread can acquire the
syncpt_mutex after the refcount drops to zero
but before syncpt_release acquires it.
This prevents races where syncpoints could
be allocated while still being cleaned up
from a previous release.

Remove explicit mutex locking in syncpt_release
as kref_put_mutex() handles this atomically.

## Remediation

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