validate memory access in qvm syscalls#441

Open

kvanderlaag wants to merge 3 commits intoioquake:mainfrom

kvanderlaag:master

Commits on Feb 4, 2020

validate memory accesses in qvm system calls
kvanderlaag
committed

Commits on Feb 5, 2020

allocate additional space for effective load checks
kvanderlaag
committed
Enable check to avoid crash in DLLs; signed->unsigned cast; code formatting
kvanderlaag
committed