What happened
In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Check bounds on allocate_doorbell allocated_doorbell has an option to set the doorbell id to a specific value (used by CRIU). This value was not bounds checked. Check to confirm it's less than KFD_MAX_NUM_OF_QUEUES_PER_PROCESS.
Affected versions
Linux: 5bb6a8fa75fcfda93592bee0a4910420ceab15f3 through before e0cecd04a4fc4c75e375b91cf53eab5ba2e4ab7f (git); 5bb6a8fa75fcfda93592bee0a4910420ceab15f3 through before c2c89118c27cbd3adace62c5df19d15b0e96ade1 (git); 5bb6a8fa75fcfda93592bee0a4910420ceab15f3 through before 1f087bb8cf9e8797633da35c85435e557ef74d06 (git); 5.18 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.