Intel Data Center GPU Flex Series - Windows driver: Improper buffer restrictions in the Flex Series Windows driver let

Impact

Improper buffer restrictions in the Flex Series Windows driver let an authenticated user knock the GPU out. Flex Series is the media/VDI-oriented datacenter part, so the affected hosts are typically multi-session - meaning any logged-in user, not just an administrator.

Who can reach it

Local, authenticated, on a Windows host running the Flex Series driver before 31.0.101.4314.

What to do

Update the Flex Series Windows driver to 31.0.101.4314 or later. Cost: Windows driver replacement means a node reboot; drain sessions first.

References