Riskcovery

CVE-2026-63851

drm/amdgpu/vcn: set no_user_fence for VCN v4.0.5 enc ring

State
Published
Severity
7.8 High
Published
Jul 19, 2026
Updated
Oct 19, 2026
Reserved
Jul 19, 2026

Read the record on cve.org

Description

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

drm/amdgpu/vcn: set no_user_fence for VCN v4.0.5 enc ring

VCN encoder and decoder rings do not support 64-bit user fence writes, reject CS submissions with user fences.

(cherry picked from commit 084d94ac93707bdda07efb5cee786f632de4219b)

Scores

CVSSScoreVectorSource
3.17.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLinux

Weaknesses

  • CWE-20 Improper Input Validation

Affected Products

ProductVersions
LinuxLinux
  • 547aad32edac17a3ec4989d8aad2426d0cbeb590 to before 75091030f07b7957cc0646cd52e2d9d15f611483Affected
  • 547aad32edac17a3ec4989d8aad2426d0cbeb590 to before 6d9a98c5ed65ba92a09e4ca5a5f6941448145529Affected
  • 547aad32edac17a3ec4989d8aad2426d0cbeb590 to before 7f23b5c420b9f68a210c29c5123bace670aa8cc9Affected
  • 547aad32edac17a3ec4989d8aad2426d0cbeb590 to before 589a254bf3e88204c8402b9cbccd5e23a0af990fAffected
LinuxLinux
  • 6.7Affected
  • before 6.7Not affected
  • 6.12.91 through 6.12.*Not affected
  • 6.18.33 through 6.18.*Not affected
  • 7.0.10 through 7.0.*Not affected
  • 7.1 and laterNot affected

References

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