linux-kernel - Re: [PATCH][next] ethtool: ioctl: Use array_size() in copy_to

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Message-Id: <20200617.150522.1461942636829701792.davem@davemloft.net>
Date:   Wed, 17 Jun 2020 15:05:22 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     gustavoars@...nel.org
Cc:     kuba@...nel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, gustavo@...eddedor.com,
        keescook@...omium.org
Subject: Re: [PATCH][next] ethtool: ioctl: Use array_size() in
 copy_to_user()

From: "Gustavo A. R. Silva" <gustavoars@...nel.org>
Date: Mon, 15 Jun 2020 18:01:07 -0500

> Use array_size() helper instead of the open-coded version in
> copy_to_user(). These sorts of multiplication factors need to
> be wrapped in array_size().
> 
> This issue was found with the help of Coccinelle and, audited and fixed
> manually.
> 
> Addresses-KSPP-ID: https://github.com/KSPP/linux/issues/83
> Signed-off-by: Gustavo A. R. Silva <gustavoars@...nel.org>

Applied to net-next.