NVIDIA Windows GPU Display Driver (nvlddmkm.sys): Improper access control in the escape handler leaks information
CVE-2021-1055NVIDIA / GPU stackcurated
Impact
Improper access control in the escape handler leaks information and lets an unprivileged caller crash the driver.
Who can reach it
Any local user with GPU device access.
What to do
Install the fixed Windows GPU Display Driver branch listed in the NVIDIA bulletin. nvlddmkm.sys is a kernel driver: the swap needs a host reboot, so on a Windows GPU node this is a drain-and-reboot, not a live driver reload. No VBIOS or BMC flash involved.
References
This entry is curated: imported from vendor advisories with machine assistance, not yet individually verified. Confirm against your vendor's advisory before acting, and report anything wrong.