drm/xe: Reject page faults from non-fault-mode scratch VMs
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 7.2.6
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
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)
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
From ad9843aac91a1eda12912a4922042ea04cfc29dc · fixed in 905d648e97ef3a291f71a935a7fab0133f27f0f7; From ad9843aac91a1eda12912a4922042ea04cfc29dc · fixed in 5e977521d21717edb8e91d004434697d6e3f248c
- Linux Linux
7.1
- KernelLinux
From 7.1.0 · fixed in 7.2.6