Re: [PATCH 4/4] net: improve the user pointer check in init_user_sockptr

[David Miller]

From: Christoph Hellwig <h...@lst.de>
Date: Tue, 28 Jul 2020 08:36:43 +0200

>       if (get_user(len, optlen))
>               return -EFAULT;
        ^^^^^^^^^^^^^^^^^^^^^^^^^^
> -     err = init_user_sockptr(&optval, user_optval);
> +     err = init_user_sockptr(&optval, user_optval, *optlen);
                                                      ^^^^^^^^

Hmmm?