---
id: CVE-2025-68181
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  drm/radeon: Remove calls to drm_put_dev()

  Since the allocation of the drivers main structure was changed to
  devm_drm_dev_alloc() drm_put_dev()'ing to trigger it to be …
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  drm/radeon: Remove calls to drm_put_dev()

  Since the allocation of the drivers main structure was changed to
  devm_drm_dev_alloc() drm_put_dev()'ing to trigger it to be …
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'
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-2025-68181'
references:
  - url: 'https://git.kernel.org/stable/c/2fa41445d8c98f2a65503c373796466496edc0e7'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/745bae76acdd71709773c129a69deca01036250b'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/ec18f6b2c743cc471b2539ddb5caed20a012e640'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
epss: 0.00148
epssPercentile: 0.03579
ingestedAt: '2026-10-14T13:30:58.446Z'
---

## Overview

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

drm/radeon: Remove calls to drm_put_dev()

Since the allocation of the drivers main structure was changed to
devm_drm_dev_alloc() drm_put_dev()'ing to trigger it to be free'd
should be done by devres.

However, drm_put_dev() is still in the probe error and device remove
paths. When the driver fails to probe warnings like the following are
shown because devres is trying to drm_put_dev() after the driver
already did it.

[    5.642230] radeon 0000:01:05.0: probe with driver radeon failed with error -22
[    5.649605] ------------[ cut here ]------------
[    5.649607] refcount_t: underflow; use-after-free.
[    5.649620] WARNING: CPU: 0 PID: 357 at lib/refcount.c:28 refcount_warn_saturate+0xbe/0x110

(cherry picked from commit 3eb8c0b4c091da0a623ade0d3ee7aa4a93df1ea4)

## Remediation

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