Re: [PATCH v2 32/34] arm64: select KASAN_VMALLOC for SW/HW_TAGS modes

[Catalin Marinas]

On Mon, Dec 06, 2021 at 10:44:09PM +0100, andrey.konovalov@xxxxxxxxx wrote:
> From: Andrey Konovalov <andreyknvl@xxxxxxxxxx>
> 
> Generic KASAN already selects KASAN_VMALLOC to allow VMAP_STACK to be
> selected unconditionally, see commit acc3042d62cb9 ("arm64: Kconfig:
> select KASAN_VMALLOC if KANSAN_GENERIC is enabled").
> 
> The same change is needed for SW_TAGS KASAN.
> 
> HW_TAGS KASAN does not require enabling KASAN_VMALLOC for VMAP_STACK,
> they already work together as is. Still, selecting KASAN_VMALLOC still
> makes sense to make vmalloc() always protected. In case any bugs in
> KASAN's vmalloc() support are discovered, the command line kasan.vmalloc
> flag can be used to disable vmalloc() checking.
> 
> This patch selects KASAN_VMALLOC for all KASAN modes for arm64.
> 
> Signed-off-by: Andrey Konovalov <andreyknvl@xxxxxxxxxx>

Acked-by: Catalin Marinas <catalin.marinas@xxxxxxx>

I also had a look at the rest of the patches and they look fine to me
(even the init_tags comment, feel free to ignore it). I'll poke Vincenzo
next week to look at the patches with his co-developed-by tag.

-- 
Catalin