Re: [PATCH v2 07/18] nios2: drop access_ok() check from __put_user()

Arnd Bergmann
2022-02-24T07:06:34Z

On Thu, Feb 24, 2022 at 12:30 AM Dinh Nguyen <dinguyen@kernel.org> wrote:
> On 2/16/22 07:13, Arnd Bergmann wrote: From: Arnd Bergmann <arnd@arndb.de>
> >
> > Unlike other architectures, the nios2 version of __put_user() has an
> > extra check for access_ok(), preventing it from being used to implement
> > __put_kernel_nofault().
> >
> > Split up put_user() along the same lines as __get_user()/get_user()
> >
> > Signed-off-by: Arnd Bergmann <arnd@arndb.de>
>
> Acked-by: Dinh Nguyen <dinguyen@kernel.org>

Thanks! Could you also have a look at patch 2 (uaccess: fix nios2 and
microblaze get_user_8)? That one is actually more critical, and should
be backported to stable kernels.

Arnd