On Mon, Jun 03, 2019 at 06:55:18PM +0200, Andrey Konovalov wrote:
This patch is a part of a series that extends arm64 kernel ABI to allow to
pass tagged user pointers (with the top byte set to something else other
than 0x00) as syscall arguments.
This patch adds a simple test, that calls the uname syscall with a
tagged user pointer as an argument. Without the kernel accepting tagged
user pointers the test fails with EFAULT.
Signed-off-by: Andrey Konovalov <andreyknvl@xxxxxxxxxx>
I'm adding Shuah to CC in case she has some suggestions about the new
Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx>