---
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: '2026-10-15'
sourceUpdated: '2026-10-15T11:18:06.707'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-93176'
references:
  - url: 'https://git.kernel.org/stable/c/3d8391d3149a1aeb93505a4f9fb9ed8364882c42'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - 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
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-93176.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-93176'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2536201'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-93176'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-93176'
  - url: >-
      https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-93176.mbox
  - url: 'https://kernelcve.org/list/?q=CVE-2026-93176'
  - url: 'https://git.kernel.org/stable/c/cda8af27b787d79eadc4eb8109d9f2e856dadac2'
  - url: 'https://git.kernel.org/stable/c/0999a267bdc13648b6b0db893e7eabe30bc13e7c'
tags:
  - nvd
  - cve.org
  - csaf
  - vex
  - red-hat
  - score-dispute
epss: 0.00155
epssPercentile: 0.0457
ingestedAt: '2026-09-17T16:21:47.729Z'
cwe:
  - CWE-416
scores:
  nvd: 7
  vendor: 4.7
  cna: 7
---

## 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.

## Vendor advisories

- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, … · updated 2026-10-21 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-93176.json)