On Thu, Sep 30, 2021 at 9:09 AM Kefeng Wang <wangkefeng.wang@xxxxxxxxxx> wrote:
>
> Directly use is_kernel() helper in kernel_or_module_addr().
>
> Cc: Andrey Ryabinin <ryabinin.a.a@xxxxxxxxx>
> Cc: Alexander Potapenko <glider@xxxxxxxxxx>
> Cc: Andrey Konovalov <andreyknvl@xxxxxxxxx>
> Cc: Dmitry Vyukov <dvyukov@xxxxxxxxxx>
> Signed-off-by: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx>
Reviewed-by: Alexander Potapenko <glider@xxxxxxxxxx>
> ---
> mm/kasan/report.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/mm/kasan/report.c b/mm/kasan/report.c
> index 3239fd8f8747..1c955e1c98d5 100644
> --- a/mm/kasan/report.c
> +++ b/mm/kasan/report.c
> @@ -226,7 +226,7 @@ static void describe_object(struct kmem_cache *cache, void *object,
>
> static inline bool kernel_or_module_addr(const void *addr)
> {
> - if (addr >= (void *)_stext && addr < (void *)_end)
> + if (is_kernel((unsigned long)addr))
> return true;
> if (is_module_address((unsigned long)addr))
> return true;
> --
> 2.26.2
>
--
Alexander Potapenko
Software Engineer
Google Germany GmbH
Erika-Mann-Straße, 33
80636 München
Geschäftsführer: Paul Manicle, Halimah DeLaine Prado
Registergericht und -nummer: Hamburg, HRB 86891
Sitz der Gesellschaft: Hamburg
