---
id: CVE-2022-49969
title: >-
  In the Linux kernel, the following vulnerability has been resolved:


  drm/amd/display: clear optc underflow before turn off odm clock


  [Why]

  After ODM clock off, optc underflow bit will be kept there always and clear
  not work.

  We need to …
summary: >-
  In the Linux kernel, the following vulnerability has been resolved:


  drm/amd/display: clear optc underflow before turn off odm clock


  [Why]

  After ODM clock off, optc underflow bit will be kept there always and clear
  not work.

  We need to …
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'
vendor: linux
product: linux_kernel
affected:
  - 'linux_kernel >= 4.15, < 4.19.257'
  - 'linux_kernel >= 4.20, < 5.4.212'
  - 'linux_kernel >= 5.5, < 5.10.141'
  - 'linux_kernel >= 5.11, < 5.15.65'
  - 'linux_kernel >= 5.16, < 5.19.7'
  - linux_kernel = 6.0
patched:
  - linux_kernel 5.19.7
published: '2025-06-18'
updated: '2026-08-15'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2022-49969'
references:
  - url: 'https://git.kernel.org/stable/c/3101839b080137c367f3f88c2a040f791de880aa'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/3c1dfeaeb3b4e3ea656041da1241e6ee3c3b3202'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/443687798d6f094412b7312b64b3bb4d99aedff7'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/5ee30bcfdb32526233d2572f3d9ec371928679f1'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/814b756d4ec3a8728debb116cf49005feada7750'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/b2a93490201300a749ad261b5c5d05cb50179c44'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
epss: 0.00284
epssPercentile: 0.1862
ingestedAt: '2026-08-15T13:26:44.792Z'
---

## Overview

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

drm/amd/display: clear optc underflow before turn off odm clock

[Why]
After ODM clock off, optc underflow bit will be kept there always and clear not work.
We need to clear that before clock off.

[How]
Clear that if have when clock off.

## Affected

- `linux_kernel >= 4.15, < 4.19.257`
- `linux_kernel >= 4.20, < 5.4.212`
- `linux_kernel >= 5.5, < 5.10.141`
- `linux_kernel >= 5.11, < 5.15.65`
- `linux_kernel >= 5.16, < 5.19.7`
- `linux_kernel = 6.0`

## Remediation

Upgrade past the affected range:

- `linux_kernel 5.19.7`