CVE-2026-90064
N/A
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | ad9843aac91a1eda12912a4922042ea04cfc29dc < 905d648e97ef3a291f71a935a7fab0133f27f0f7 | affected |
| Linux | Linux | ad9843aac91a1eda12912a4922042ea04cfc29dc < 5e977521d21717edb8e91d004434697d6e3f248c | affected |
| Linux | Linux | 7.1 | affected |
| Linux | Linux | 0 < 7.1 | unaffected |
| Linux | Linux | 7.2.6 <= 7.2.* | unaffected |
| Linux | Linux | 7.3-rc1 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/905d648e97ef3a291f71a935a7fab0133f27f0f7
- https://git.kernel.org/stable/c/5e977521d21717edb8e91d004434697d6e3f248c
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