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SubjectRe: [PATCH mm v4 16/39] kasan: define KASAN_VMALLOC_INVALID for SW_TAGS
On Mon, Dec 20, 2021 at 11:00 PM <andrey.konovalov@linux.dev> wrote:
>
> From: Andrey Konovalov <andreyknvl@google.com>
>
> In preparation for adding vmalloc support to SW_TAGS KASAN,
> provide a KASAN_VMALLOC_INVALID definition for it.
>
> HW_TAGS KASAN won't be using this value, as it falls back onto
> page_alloc for poisoning freed vmalloc() memory.
>
> Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Alexander Potapenko <glider@google.com>

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