tree 07f94a9ec860dc0bcb6efd2f44632d0a5da29237
parent 97433ea4fda62349bfa42089455593cbcb57e06c
author Kees Cook <keescook@chromium.org> 1466720459 -0700
committer Kees Cook <keescook@chromium.org> 1469569313 -0700

mm: SLAB hardened usercopy support

Under CONFIG_HARDENED_USERCOPY, this adds object size checking to the
SLAB allocator to catch any copies that may span objects.

Based on code from PaX and grsecurity.

Signed-off-by: Kees Cook <keescook@chromium.org>
Tested-by: Valdis Kletnieks <valdis.kletnieks@vt.edu>