From: Kees Cook <keescook@chromium.org>
To: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
Cc: Antoine Tenart <antoine.tenart@bootlin.com>,
Herbert Xu <herbert@gondor.apana.org.au>,
"David S. Miller" <davem@davemloft.net>,
linux-crypto <linux-crypto@vger.kernel.org>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] crypto: inside-secure: safexcel - fix memory allocation
Date: Mon, 8 Oct 2018 15:20:10 -0700 [thread overview]
Message-ID: <CAGXu5j+a=81mGFrF5igMXe46mv_PsqzUKCzLWj0oCEMk1PY62g@mail.gmail.com> (raw)
In-Reply-To: <20181008191712.GA12892@embeddedor.com>
On Mon, Oct 8, 2018 at 12:17 PM, Gustavo A. R. Silva
<gustavo@embeddedor.com> wrote:
> The original intention is to allocate space for EIP197_DEFAULT_RING_SIZE
> *pointers* to struct, so sizeof(priv->ring[i].rdr_req) should be
> sizeof(*priv->ring[i].rdr_req).
>
> Addresses-Coverity-ID: 1473962 ("Sizeof not portable")
> Fixes: 9744fec95f06 ("crypto: inside-secure - remove request list to improve performance")
> Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Luckily, this results in the same size, since it's still a pointer:
struct crypto_async_request **rdr_req;
But yes, it should be fixed.
-Kees
> ---
> drivers/crypto/inside-secure/safexcel.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/crypto/inside-secure/safexcel.c b/drivers/crypto/inside-secure/safexcel.c
> index 86c699c1..bc6c5cb 100644
> --- a/drivers/crypto/inside-secure/safexcel.c
> +++ b/drivers/crypto/inside-secure/safexcel.c
> @@ -1066,7 +1066,7 @@ static int safexcel_probe(struct platform_device *pdev)
>
> priv->ring[i].rdr_req = devm_kcalloc(dev,
> EIP197_DEFAULT_RING_SIZE,
> - sizeof(priv->ring[i].rdr_req),
> + sizeof(*priv->ring[i].rdr_req),
> GFP_KERNEL);
> if (!priv->ring[i].rdr_req) {
> ret = -ENOMEM;
> --
> 2.7.4
>
--
Kees Cook
Pixel Security
next prev parent reply other threads:[~2018-10-08 22:20 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-08 19:17 [PATCH] crypto: inside-secure: safexcel - fix memory allocation Gustavo A. R. Silva
2018-10-08 22:20 ` Kees Cook [this message]
2018-10-16 19:44 ` Gustavo A. R. Silva
2018-10-17 6:17 ` Herbert Xu
2018-10-17 7:20 ` Antoine Tenart
2018-10-17 14:41 ` Gustavo A. R. Silva
2018-10-17 18:23 ` Kees Cook
2018-10-18 6:24 ` Gustavo A. R. Silva
2018-10-10 13:55 ` Antoine Tenart
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