If a user does not have access to a given buffer, we must not allow them
to mmap it. Otherwise, users could "guess" the buffer offsets of other
users and get access to the buffer.
Similar to mmap(), we also fix ttm_bo_io() which is the backend for read()
and write() syscalls. It's currently unused,
If a user does not have access to a given buffer, we must not allow them
to mmap it. Otherwise, users could "guess" the buffer offsets of other
users and get access to the buffer.
Similar to mmap(), we also fix ttm_bo_io() which is the backend for read()
and write() syscalls. It's currently unused,
