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From: Kees Cook <keescook@chromium.org>
To: "Gustavo A. R. Silva" <gustavoars@kernel.org>
Cc: Matt Porter <mporter@kernel.crashing.org>,
	Alexandre Bounine <alex.bou9@gmail.com>,
	linux-kernel@vger.kernel.org,
	"Gustavo A. R. Silva" <gustavo@embeddedor.com>
Subject: Re: [PATCH][next] rapidio/rio_mport_cdev: Use array_size() helper in copy_{from,to}_user()
Date: Tue, 16 Jun 2020 11:39:39 -0700
Message-ID: <202006161139.AA7D18E833@keescook> (raw)
In-Reply-To: <20200616183050.GA31840@embeddedor>

On Tue, Jun 16, 2020 at 01:30:50PM -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().
> 
> 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@kernel.org>

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

-- 
Kees Cook

  reply index

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-16 18:30 Gustavo A. R. Silva
2020-06-16 18:39 ` Kees Cook [this message]
2020-07-10 22:06 ` Gustavo A. R. Silva

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