Re: [PATCH v3 5/6] Initialize the mapping of KASan shadow memory

From: Nicolas Pitre
Date: Mon Apr 02 2018 - 14:08:23 EST


On Mon, 2 Apr 2018, Abbott Liu wrote:

> index c79b829..20161e2 100644
> --- a/arch/arm/kernel/head-common.S
> +++ b/arch/arm/kernel/head-common.S
> @@ -115,6 +115,9 @@ __mmap_switched:
> str r8, [r2] @ Save atags pointer
> cmp r3, #0
> strne r10, [r3] @ Save control register values
> +#ifdef CONFIG_KASAN
> + bl kasan_early_init
> +#endif
> mov lr, #0
> b start_kernel
> ENDPROC(__mmap_switched)

Would be better if lr was cleared before calling kasan_early_init.


Nicolas