From: Dan Carpenter <dan.carpenter@oracle.com>
To: harsh@chelsio.com
Cc: linux-crypto@vger.kernel.org
Subject: Re: [bug report] crypto: chcr - Add AEAD algos.
Date: Tue, 24 Jan 2017 13:43:13 +0300 [thread overview]
Message-ID: <20170124104313.GD4201@mwanda> (raw)
In-Reply-To: <20161201204858.GA10660@mwanda>
Ping?
regards,
dan carpenter
On Thu, Dec 01, 2016 at 11:48:58PM +0300, Dan Carpenter wrote:
> Hello Harsh Jain,
>
> This is a semi-automatic email about new static checker warnings.
>
> The patch 2debd3325e55: "crypto: chcr - Add AEAD algos." from Nov 29,
> 2016, leads to the following Smatch complaint:
>
> drivers/crypto/chelsio/chcr_algo.c:2460 chcr_aead_op()
> warn: variable dereferenced before check 'ctx' (see line 2457)
>
> drivers/crypto/chelsio/chcr_algo.c:2460 chcr_aead_op()
> warn: variable dereferenced before check 'ctx->dev' (see line 2457)
>
> drivers/crypto/chelsio/chcr_algo.c
> 2456 struct chcr_context *ctx = crypto_aead_ctx(tfm);
> 2457 struct uld_ctx *u_ctx = ULD_CTX(ctx);
> ^^^^^^^^^^^^
> Derefences both.
>
> 2458 struct sk_buff *skb;
> 2459
> 2460 if (ctx && !ctx->dev) {
> ^^^^^^^^^^^^^^^^
> Check is too late.
>
> 2461 pr_err("chcr : %s : No crypto device.\n", __func__);
> 2462 return -ENXIO;
>
> regards,
> dan carpenter
prev parent reply other threads:[~2017-01-24 10:43 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-01 20:48 [bug report] crypto: chcr - Add AEAD algos Dan Carpenter
2017-01-24 10:43 ` Dan Carpenter [this message]
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