---
id: CVE-2022-50535
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  drm/amd/display: Fix potential null-deref in dm_resume

  [Why]
  Fixing smatch error:
  dm_resume() error: we previously assumed 'aconnector->dc_link' could be null

  [How]
  C…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  drm/amd/display: Fix potential null-deref in dm_resume

  [Why]
  Fixing smatch error:
  dm_resume() error: we previously assumed 'aconnector->dc_link' could be null

  [How]
  C…
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-476
vendor: linux
product: linux_kernel
affected:
  - 'linux_kernel >= 4.15, < 4.19.276'
  - 'linux_kernel >= 4.20, < 5.4.235'
  - 'linux_kernel >= 5.5, < 5.10.173'
  - 'linux_kernel >= 5.11, < 5.15.99'
  - 'linux_kernel >= 5.16, < 6.1.16'
  - 'linux_kernel >= 6.2, < 6.2.3'
patched:
  - linux_kernel 6.2.3
published: '2025-10-07'
updated: '2026-08-15'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2022-50535'
references:
  - url: 'https://git.kernel.org/stable/c/00b655fa96b4e941351cc4bf5ca755a65ae94a8e'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/7a7175a2cd84b7874bebbf8e59f134557a34161b'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/8e365f1bd672cc9320a936f6ae6f8087aa40e9bc'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/9f73793b81637c60ccc83cc508645310b8ab7d80'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/bb9a5562beb982aa5ebb73c521c49596ff8b8030'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/d236103782de25736996a45bd36ac2a89bdc93c6'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/fd79b61af2782f8875c78f50cdb8630ec43e2990'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
epss: 0.00156
epssPercentile: 0.03983
ingestedAt: '2026-08-15T13:26:45.967Z'
---

## Overview

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

drm/amd/display: Fix potential null-deref in dm_resume

[Why]
Fixing smatch error:
dm_resume() error: we previously assumed 'aconnector->dc_link' could be null

[How]
Check if dc_link null at the beginning of the loop,
so further checks can be dropped.

## Affected

- `linux_kernel >= 4.15, < 4.19.276`
- `linux_kernel >= 4.20, < 5.4.235`
- `linux_kernel >= 5.5, < 5.10.173`
- `linux_kernel >= 5.11, < 5.15.99`
- `linux_kernel >= 5.16, < 6.1.16`
- `linux_kernel >= 6.2, < 6.2.3`

## Remediation

Upgrade past the affected range:

- `linux_kernel 6.2.3`