GSD-2023-1001530 drm/vmwgfx: Validate the box size for the snooped cursor

drm/vmwgfx: Validate the box size for the snooped cursor This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v4.9.337 by commit...