Riskcovery

CVE-2026-63854

drm/amdgpu/vcn: set no_user_fence for VCN v3.0 enc/dec rings

State
Published
Severity
7.8 High
Published
Jul 19, 2026
Updated
Oct 30, 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 v3.0 enc/dec rings

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

(cherry picked from commit 663bed3c7b8b9a7624b0d95d300ddae034ad0614)

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
  • cf14826cdfb5c9fe10f98210d040b9d7486c381d to before e3d339b0d9051d49eb9c78459091bba4fb525100Affected
  • cf14826cdfb5c9fe10f98210d040b9d7486c381d to before e74fc9c72c1ba78d0de0b849f5929c3b39a8e20cAffected
  • cf14826cdfb5c9fe10f98210d040b9d7486c381d to before 26c4f38529ac78930c9c4713e16ebc5b689bb0a3Affected
  • cf14826cdfb5c9fe10f98210d040b9d7486c381d to before 2d6525e7b2504f5bbfe9417cddc1e8da858791ddAffected
  • cf14826cdfb5c9fe10f98210d040b9d7486c381d to before b076e45e6f757a2829e80d0144c1b5f201bee5afAffected
  • cf14826cdfb5c9fe10f98210d040b9d7486c381d to before f1e5a6660d7cbf006079126d9babbf0ccf538c6bAffected
LinuxLinux
  • 5.9Affected
  • before 5.9Not affected
  • 6.1.191 through 6.1.*Not affected
  • 6.6.141 through 6.6.*Not 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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