[VM] Block userland from mmap'ing the first page (NULL to B_PAGE_SIZE)
|Reported by:||waddlesplash||Owned by:||waddlesplash|
|Has a Patch:||no||Platform:||All|
This is for security reasons, as then if the kernel tries to dereference NULL, it will always cause a page fault, instead of being potentially exploitable by a malicious application.
The only possible concern is BeOS compatibility. Did any applications do this intentionally? Do we care?