Re: [PATCH v2] RDMA/mlx5: Use memset_after() to zero struct mlx5_ib_mr

Leon Romanovsky
2021-12-08T08:51:59Z

On Tue, Dec 07, 2021 at 01:20:22PM -0800, Kees Cook wrote:
> In preparation for FORTIFY_SOURCE performing compile-time and run-time
> field bounds checking for memset(), avoid intentionally writing across
> neighboring fields.
>
> Use memset_after() to zero the end of struct mlx5_ib_mr that should
> be initialized.
>
> Signed-off-by: Kees Cook <keescook@chromium.org>
> ---
> v2: rebased, umem moved into the union and is expected to be wiped
> https://lore.kernel.org/lkml/20211207194525.GL6385@nvidia.com
> ---
> drivers/infiniband/hw/mlx5/mlx5_ib.h | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>

Thanks,
Acked-by: Leon Romanovsky <leonro@nvidia.com>