---
id: CVE-2026-93176
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  drm/amd/display: Fix dangling pointer in plane reset function

  amdgpu_dm_plane_drm_plane_reset() frees the old state before allocating
  a new one
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  drm/amd/display: Fix dangling pointer in plane reset function

  amdgpu_dm_plane_drm_plane_reset() frees the old state before allocating
  a new one. If kzalloc() fails, th…
severity: high
cvss: 7
cvssVector: 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 5d945cbcd4b16a29d6470a80dfb19738f9a4319f <
    80c0f51aced43d6eaf72f95a2833b0a77cf7880d
  - >-
    Linux >= 5d945cbcd4b16a29d6470a80dfb19738f9a4319f <
    98cad4bd1443975d972f4c7f705980da03722a22
  - Linux 6.0
published: '2026-09-17'
updated: '2026-09-18'
sourceUpdated: '2026-09-18T18:18:23.660'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-93176'
references:
  - url: 'https://git.kernel.org/stable/c/80c0f51aced43d6eaf72f95a2833b0a77cf7880d'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/98cad4bd1443975d972f4c7f705980da03722a22'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
epss: 0.00141
epssPercentile: 0.02831
ingestedAt: '2026-09-17T16:21:47.729Z'
---

## Overview

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

drm/amd/display: Fix dangling pointer in plane reset function

amdgpu_dm_plane_drm_plane_reset() frees the old state before allocating
a new one. If kzalloc() fails, the function returns without updating
the state pointer, leaving a dangling pointer to already freed memory.

Fix this by allocating the new state first. On allocation failure, the
old state remains untouched and the function safely returns.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

[adjust for movement around current amd-staging-drm-next]

## Remediation

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