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CVE-2026-63852

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

Description (CNA)

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 (CNA)

Vendor / productVersions
Linux / Linuxaffected b889ef4ac98837838c38f7b9f72bba2f33ee367d before c12a5d35033c0640c57c10d7111c010c7b9c2c8e; affected b889ef4ac98837838c38f7b9f72bba2f33ee367d before 387b7c7667bd5c53549350ddad866d2fcf75a529; affected b889ef4ac98837838c38f7b9f72bba2f33ee367d before 9076a83e5adefd10dc5c967c7b8bde601c4c512a; affected b889ef4ac98837838c38f7b9f72bba2f33ee367d before 0177ac6141c8857130cf365369c74dee7b6b1f7f; affected b889ef4ac98837838c38f7b9f72bba2f33ee367d before 4532b52b34e4e4310386e6fdf6a643368599f522
Linux / Linuxaffected 6.5; unaffected 0 before 6.5; unaffected 6.6.141 through 6.6.*; unaffected 6.12.91 through 6.12.*; unaffected 6.18.33 through 6.18.*; unaffected 7.0.10 through 7.0.*; unaffected 7.1 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.