Re: [PATCH v2 07/18] nios2: drop access_ok() check from __put_user()
From: Arnd Bergmann <arnd@kernel.org>
Date: 2022-02-24 07:06:15
Also in:
linux-alpha, linux-arch, linux-m68k, linux-mips, linux-mm, linux-riscv, linux-s390, linux-sh, linux-um, linuxppc-dev, lkml, sparclinux
On Thu, Feb 24, 2022 at 12:30 AM Dinh Nguyen [off-list ref] wrote:
On 2/16/22 07:13, Arnd Bergmann wrote: From: Arnd Bergmann [off-list ref]quoted
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