10 Jun
2019
10 Jun
'19
10:08 p.m.
On 6/7/19 9:56 PM, Kees Cook wrote:
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@google.com
I'm adding Shuah to CC in case she has some suggestions about the new selftest.
Thanks Kees.
Reviewed-by: Kees Cook keescook@chromium.org
-Kees
Looks good to me.
Acked-by: Shuah Khan skhan@linuxfoundation.org
thanks, -- Shuah