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Date:   Thu, 21 Oct 2021 10:00:34 -0700
From:   Kees Cook <keescook@chromium.org>
To:     "Gustavo A. R. Silva" <gustavoars@kernel.org>
Cc:     Pablo Neira Ayuso <pablo@netfilter.org>,
        Jozsef Kadlecsik <kadlec@netfilter.org>,
        Florian Westphal <fw@strlen.de>,
        Roopa Prabhu <roopa@nvidia.com>,
        Nikolay Aleksandrov <nikolay@nvidia.com>,
        "David S. Miller" <davem@davemloft.net>,
        Jakub Kicinski <kuba@kernel.org>,
        netfilter-devel@vger.kernel.org, coreteam@netfilter.org,
        bridge@lists.linux-foundation.org, netdev@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-hardening@vger.kernel.org
Subject: Re: [PATCH][net-next] netfilter: ebtables: use array_size() helper
 in copy_{from,to}_user()
Message-ID: <202110210958.6626A30@keescook>
References: <20210928200647.GA266402@embeddedor>
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On Tue, Sep 28, 2021 at 03:06:47PM -0500, Gustavo A. R. Silva wrote:
> Use array_size() helper instead of the open-coded version in
> copy_{from,to}_user().  These sorts of multiplication factors
> need to be wrapped in array_size().
> 
> Link: https://github.com/KSPP/linux/issues/160
> Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>

Thanks!

Reviewed-by: Kees Cook <keescook@chromium.org>

I see that this is marked "Awaiting Upstream" (for an ebtables
maintainer ack?)
https://patchwork.kernel.org/project/netdevbpf/patch/20210928200647.GA266402@embeddedor/

-- 
Kees Cook