CVE-2026-68268 drm/xe: Return error on non-migratable faults requiring devmem
A flaw in the Linux kernel's Xe driver allows bypassing memory access restrictions by incorrectly handling non-migratable faults, potentially exposing protected memory.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-68268?
CVE-2026-68268 is a vulnerability in Linux, published on 10 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
drm/xe: Return error on non-migratable faults requiring devmem
Non-migratable faults that require devmem incorrectly jump to the 'out' label, which squashes the error code intended to be returned to the upper layers. Fix this by returning -EACCES instead.
(cherry picked from commit c4508edb2c723de93717272488ea65b165637eac)
Which versions are affected by CVE-2026-68268?
How do I fix CVE-2026-68268?
Apply the vendor's patch.
Is CVE-2026-68268 being exploited?
There is no known exploitation of CVE-2026-68268 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2026-68268, DEBIAN-CVE-2026-68268, GHSA-7243-65fw-m9mq, UBUNTU-CVE-2026-68268.