Riskcovery

CVE-2026-63850

drm/amdgpu/vcn: set no_user_fence for VCN v5.0.0 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 v5.0.0 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 49b1fbbb5a071197ee71e2d70959b1cb29bdc317)

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
  • b6d1a06320519ac3bfda6ce81067a1bc409b9cff to before 9f5a1459ecc3195282be617639d710b54779c9dcAffected
  • b6d1a06320519ac3bfda6ce81067a1bc409b9cff to before 139a8a52ef4349c62129703b3a3e3a6ae4d634ebAffected
  • b6d1a06320519ac3bfda6ce81067a1bc409b9cff to before 2c350f3cd94be847ac216e1358ec7001eaaf0934Affected
  • b6d1a06320519ac3bfda6ce81067a1bc409b9cff to before 8cae0ce77de492d7c31c1532a2e80c0c6e7e58cbAffected
LinuxLinux
  • 6.9Affected
  • before 6.9Not 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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