What happened
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/userq: pin mqd and fw object bo to avoid eviction mqd and fw objects are queue core objects which should remain valid and never be unmapped and evicted for user queues to work properly. During eviction if these buffers are evicted the hw continue to use the invalid addresses and caused page faults and system hung.
Affected versions
Linux: 0385800c2ff7bddf16a9caad5840f4e4823253f2 through before a16d9986b7b27b08a696524a4dbf03dbf5433a16 (git); 0385800c2ff7bddf16a9caad5840f4e4823253f2 through before a3bbf32a336939a1d21b9561f8e53333b684b7ef (git); 6.16 Fixed: See vendor advisory.
Why it matters
Review the vendor advisory and exposure of the affected product to determine operational impact.
Detection & mitigation
- Apply vendor-provided updates or mitigations.
- Review affected product exposure and access logs.
Public PoC references
No public PoC reference has passed the current publication threshold.