Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: drm/xe: Reject page faults from non-fault-mode scratch VMs Having scratch enabled does not make a VM capable of handling recoverable page faults. Allowing scratch VMs through the ASID lookup also admits dma-fence mode VMs. If such a VM faults on an already valid VMA, the handler reports success without fixing the fault, causing the GPU to retry indefinitely. Only allow fault-mode VMs through the ASID lookup. Fault-mode VMs using scratch remain supported, while faults from 3D VMs are rejected. (cherry picked from commit bfb24a06405b652d37831f3fb66b71d33a6605de)
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected ad9843aac91a1eda12912a4922042ea04cfc29dc before 905d648e97ef3a291f71a935a7fab0133f27f0f7; affected ad9843aac91a1eda12912a4922042ea04cfc29dc before 5e977521d21717edb8e91d004434697d6e3f248c |
| Linux / Linux | affected 7.1; unaffected 0 before 7.1; unaffected 7.2.6 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.