[PATCH v6 0/6] KASAN for arm64
mark.rutland at arm.com
Fri Oct 9 02:48:51 PDT 2015
On Fri, Oct 09, 2015 at 12:32:18PM +0300, Andrey Ryabinin wrote:
> I thought the EFI stub isolation patches create a copy of mem*() functions in the stub,
> but they are just create aliases with __efistub_ prefix.
> We only need to create some more aliases for KASAN.
> The following patch on top of the EFI stub isolation series works for me.
> Signed-off-by: Andrey Ryabinin <ryabinin.a.a at gmail.com>
> arch/arm64/kernel/image.h | 6 ++++++
> 1 file changed, 6 insertions(+)
> diff --git a/arch/arm64/kernel/image.h b/arch/arm64/kernel/image.h
> index e083af0..6eb8fee 100644
> --- a/arch/arm64/kernel/image.h
> +++ b/arch/arm64/kernel/image.h
> @@ -80,6 +80,12 @@ __efistub_strcmp = __pi_strcmp;
> __efistub_strncmp = __pi_strncmp;
> __efistub___flush_dcache_area = __pi___flush_dcache_area;
> +#ifdef CONFIG_KASAN
> +__efistub___memcpy = __pi_memcpy;
> +__efistub___memmove = __pi_memmove;
> +__efistub___memset = __pi_memset;
Ard's v4 stub isolation series has these aliases , as the stub
requires these aliases regardless of KASAN in order to link.
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