NVIDIA Windows GPU Display Driver (nvlddmkm.sys): Out-of-bounds kernel buffer access through the escape handler

Impact

Out-of-bounds kernel buffer access through the escape handler from an unprivileged caller - denial of service, with escalation possible.

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