---
id: CVE-2026-98785
title: >-
  kernel: drm/amd/display: check dc_state_create_copy() for NULL in dm_suspend
  (CVE-2026-98785)
summary: >-
  A flaw was found in the Linux kernel's AMD display driver. During power
  management suspend operations under low memory conditions, the driver fails to
  handle memory allocation failures and retains an invalid null state. When the
  system sub…
severity: medium
cvss: 4.7
cvssVector: 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H'
cvssSource: vendor
cwe: CWE-476
vendor: Red Hat
product: Red Hat Enterprise Linux 9
affected:
  - enterprise_linux 10
  - enterprise_linux 6
  - enterprise_linux 9
  - openshift_container_platform 4
published: '2026-10-18'
updated: '2026-10-23'
sourceUpdated: '2026-10-23T11:16:48+00:00'
source: CSAF
sourceUrl: 'https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98785.json'
references:
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98785.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-98785'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2555103'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-98785'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-98785'
  - url: >-
      https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98785.mbox
  - url: 'https://git.kernel.org/stable/c/29302964ef583f3a57efc3c990bc0a71337bd3a4'
  - url: 'https://git.kernel.org/stable/c/686baa1f4ec43b33e39e3d4b4a4539a91d17e883'
  - url: 'https://git.kernel.org/stable/c/197946faa1b7968046ba475ae2f266847c6f51ed'
  - url: 'https://git.kernel.org/stable/c/7283b78ca07ce491984a63f6288f3f8de5bdcb22'
  - url: 'https://git.kernel.org/stable/c/015e72cde567d2450e282c2790773463156b2d0a'
tags:
  - csaf
  - vex
  - red-hat
  - cve.org
epss: 0.0018
epssPercentile: 0.07555
ingestedAt: '2026-10-18T16:47:32.488Z'
---

## Overview

A flaw was found in the Linux kernel's AMD display driver. During power management suspend operations under low memory conditions, the driver fails to handle memory allocation failures and retains an invalid null state. When the system subsequently attempts to resume or recover the graphics processor, it dereferences this null pointer, resulting in a kernel crash and a Denial of Service (DoS).

## Vendor advisories

- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, 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 9, Red Hat OpenShift Container Platform 4 · updated 2026-10-23 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98785.json)

**kernel: drm/amd/display: check dc_state_create_copy() for NULL in dm_suspend** — rated Moderate by Red Hat. Released 2026-10-18, updated 2026-10-23.

Affected:

- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- 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 9
- Red Hat OpenShift Container Platform 4

Not affected:

- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat OpenShift Container Platform 4

## Remediation

Out of support scope