Re: [v3 PATCH] arm64: kasan: instrument user memory access API

On Wed, Jun 08, 2016 at 02:40:56PM -0700, Yang Shi wrote:

The upstream commit 1771c6e1a567ea0ba2cccc0a4ffe68a1419fd8ef ("x86/kasan: instrument user memory access API") added KASAN instrument to x86 user memory access API, so added such instrument to ARM64 too.

Define __copy_to/from_user in C in order to add kasan_check_read/write call, rename assembly implementation to __arch_copy_to/from_user.

Tested by test_kasan module.

Acked-by: Andrey Ryabinin aryabinin@virtuozzo.com Reviewed-by: Mark Rutland mark.rutland@arm.com Tested-by: Mark Rutland mark.rutland@arm.com Signed-off-by: Yang Shi yang.shi@linaro.org

Queued for 4.8. Thanks.