Riskcovery

CVE-2026-63853

drm/amdgpu/vcn: set no_user_fence for VCN v4.0 enc ring

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 v4.0 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 fd852c048b46f9825e904a4f3f4538fe9d8827d9)

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
  • 8da1170a16e4d4b49fa07d1f75ad480847ff7eca to before 772f83fc70b797ac88d696671780eaf175cc7f31Affected
  • 8da1170a16e4d4b49fa07d1f75ad480847ff7eca to before 525cc9df654365c147ae61e5562cf599ea2257f7Affected
  • 8da1170a16e4d4b49fa07d1f75ad480847ff7eca to before d8df8918677136b018d71d0b94a1f6b816715946Affected
  • 8da1170a16e4d4b49fa07d1f75ad480847ff7eca to before 1286b6872de0aee1feeeaa6dbac86369806de9a5Affected
  • 8da1170a16e4d4b49fa07d1f75ad480847ff7eca to before 6bdd2ed6458d35c368fbe9550a4d7f342abd3a92Affected
  • 8da1170a16e4d4b49fa07d1f75ad480847ff7eca to before 51f694221047c84fa185be98210eb2c354ffb8c6Affected
LinuxLinux
  • 5.19Affected
  • before 5.19Not affected
  • 6.1.191 through 6.1.*Not affected
  • 6.6.160 through 6.6.*Not affected
  • 6.12.114 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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