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CVE PROGRAM SOURCE RECORD7.8 High

CVE-2026-63852

drm/amdgpu/vcn: set no_user_fence for VCN v4.0.3 enc ring

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vcn: set no_user_fence for VCN v4.0.3 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 ff1a5a125c5a70c328806b9bc01d7d942cf3f9aa)

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • b889ef4ac98837838c38f7b9f72bba2f33ee367d to < c12a5d35033c0640c57c10d7111c010c7b9c2c8eaffected
  • b889ef4ac98837838c38f7b9f72bba2f33ee367d to < 387b7c7667bd5c53549350ddad866d2fcf75a529affected
  • b889ef4ac98837838c38f7b9f72bba2f33ee367d to < 9076a83e5adefd10dc5c967c7b8bde601c4c512aaffected
  • b889ef4ac98837838c38f7b9f72bba2f33ee367d to < 0177ac6141c8857130cf365369c74dee7b6b1f7faffected
  • b889ef4ac98837838c38f7b9f72bba2f33ee367d to < 4532b52b34e4e4310386e6fdf6a643368599f522affected

Linux Linux

Default version status: affected

  • 6.5affected
  • 0 to < 6.5unaffected
  • 6.6.141 to ≤ 6.6.*unaffected
  • 6.12.91 to ≤ 6.12.*unaffected
  • 6.18.33 to ≤ 6.18.*unaffected
  • 7.0.10 to ≤ 7.0.*unaffected
  • 7.1 to ≤ *unaffected

References