What happened
In the Linux kernel, the following vulnerability has been resolved: drm/msm: Recover HW before retire hung submit During recovery, it is not safe to retire the hung submit before we recover the GPU. Retiring the submit triggers BO free and that can result in GPU pagefaults since the GPU may be actively accessing those BOs. To fix this, retire the submits after gpu recovery is complete in recover_worker(). Patchwork: https://patchwork.freedesktop.org/patch/730655/
Affected versions
Linux: 1a370be9ac51129e40b0ed7fa71d2b2b92bc47e5 through before e36284257eeca13768687bf8e52f66f8ea0e8794 (git); 1a370be9ac51129e40b0ed7fa71d2b2b92bc47e5 through before dc64cf9d71428234389b635d142cb5fe07d57eab (git); 1a370be9ac51129e40b0ed7fa71d2b2b92bc47e5 through before b303e1d52811de7d1bcf793560754d4df68d4a1c (git); 4.2 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.