linux/tools/testing/selftests/user, branch v3.16Linux kernel source treehttps://git.amat.us/linux/atom/tools/testing/selftests/user?h=v3.162014-01-24T00:36:57Ztest: check copy_to/from_user boundary validation2014-01-24T00:36:57ZKees Cookkeescook@chromium.org2014-01-23T23:54:38Zurn:sha1:3e2a4c183ace8708c69f589505fb82bb63010ade
To help avoid an architecture failing to correctly check kernel/user
boundaries when handling copy_to_user, copy_from_user, put_user, or
get_user, perform some simple tests and fail to load if any of them
behave unexpectedly.
Specifically, this is to make sure there is a way to notice if things
like what was fixed in commit 8404663f81d2 ("ARM: 7527/1: uaccess:
explicitly check __user pointer when !CPU_USE_DOMAINS") ever regresses
again, for any architecture.
Additionally, adds new "user" selftest target, which loads this module.
Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>