CVE-2026-90064 PUBLISHED

drm/xe: Reject page faults from non-fault-mode scratch VMs

Assigner: Linux
Reserved: 11.09.2026 Published: 17.09.2026 Updated: 17.09.2026

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)

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from ad9843aac91a1eda12912a4922042ea04cfc29dc to 905d648e97ef3a291f71a935a7fab0133f27f0f7 (excl.)
  • affected from ad9843aac91a1eda12912a4922042ea04cfc29dc to 5e977521d21717edb8e91d004434697d6e3f248c (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • Version 7.1 is affected
  • unaffected from 0 to 7.1 (excl.)
  • unaffected from 7.2.6 to 7.2.* (incl.)
  • unaffected from 7.3-rc1 to * (incl.)

References