tree 64e6e91e1728dc333ea1a267c31f8076d95bb0ef
parent 4fbfeb8bd684d564bddeff1e3723d3d9f99aa5de
author Kees Cook <keescook@chromium.org> 1487013926 -0800
committer Kees Cook <keescook@chromium.org> 1487291699 -0800

usercopy: Adjust tests to deal with SMAP/PAN

Under SMAP/PAN/etc, we cannot write directly to userspace memory, so
this rearranges the test bytes to get written through copy_to_user().
Additionally drops the bad copy_from_user() test that would trigger a
memcpy() against userspace on failure.

Signed-off-by: Kees Cook <keescook@chromium.org>