---
id: CVE-2026-63842
title: 'drm/amdgpu/jpeg: set no_user_fence for JPEG v5.0.0 ring'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  drm/amdgpu/jpeg: set no_user_fence for JPEG v5.0.0 ring

  JPEG rings do not support 64-bit user fence writes, reject CS
  submissions with user fences.

  (cherry picked fro…
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'
cvssSource: cna
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= dfad65c65728401587142577dd283476491bac83 <
    3a55ff19a6ff5e046d6a4a18e36deec5d95d9a2e
  - >-
    Linux >= dfad65c65728401587142577dd283476491bac83 <
    a7e63bb93a7fde3c8920984c3deee9acfe461562
  - >-
    Linux >= dfad65c65728401587142577dd283476491bac83 <
    69ab75c7c5f378eb46f4c918aa848bb5c5603924
  - >-
    Linux >= dfad65c65728401587142577dd283476491bac83 <
    ea7c61c5f895e8f9ea0ffffa180498ef9c740152
  - Linux 6.9
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-10-16T15:31:44.407900Z'
published: '2026-07-19'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T15:42:06.263Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-63842'
references:
  - url: 'https://git.kernel.org/stable/c/3a55ff19a6ff5e046d6a4a18e36deec5d95d9a2e'
  - url: 'https://git.kernel.org/stable/c/a7e63bb93a7fde3c8920984c3deee9acfe461562'
  - url: 'https://git.kernel.org/stable/c/69ab75c7c5f378eb46f4c918aa848bb5c5603924'
  - url: 'https://git.kernel.org/stable/c/ea7c61c5f895e8f9ea0ffffa180498ef9c740152'
tags:
  - cve.org
epss: 0.00175
epssPercentile: 0.0655
ingestedAt: '2026-10-16T17:24:46.757Z'
---

## Overview

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

drm/amdgpu/jpeg: set no_user_fence for JPEG v5.0.0 ring

JPEG rings do not support 64-bit user fence writes, reject CS
submissions with user fences.

(cherry picked from commit 0f43893d3cd478fa57836697525b338817c9c23d)

## Affected

- `Linux >= dfad65c65728401587142577dd283476491bac83 < 3a55ff19a6ff5e046d6a4a18e36deec5d95d9a2e`
- `Linux >= dfad65c65728401587142577dd283476491bac83 < a7e63bb93a7fde3c8920984c3deee9acfe461562`
- `Linux >= dfad65c65728401587142577dd283476491bac83 < 69ab75c7c5f378eb46f4c918aa848bb5c5603924`
- `Linux >= dfad65c65728401587142577dd283476491bac83 < ea7c61c5f895e8f9ea0ffffa180498ef9c740152`
- `Linux 6.9`

## Remediation

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