linux-kernel - Re: [PATCH] crypto: sun4i-ss Fix a possible driver hang with ciphers

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Message-ID: <20150910092654.GB28753@gondor.apana.org.au>
Date:	Thu, 10 Sep 2015 17:26:54 +0800
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	LABBE Corentin <clabbe.montjoie@...il.com>
Cc:	linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org,
	maxime.ripard@...e-electrons.com,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] crypto: sun4i-ss Fix a possible driver hang with ciphers

On Wed, Sep 09, 2015 at 02:27:07PM +0200, LABBE Corentin wrote:
> The sun4i_ss_opti_poll function cipher data until the output miter have
> a length of 0.
> If the crypto API client, give more SGs than necessary this could result
> in an infinite loop.
> Fix it by checking for remaining bytes, just like sun4i_ss_cipher_poll().
> 
> Signed-off-by: LABBE Corentin <clabbe.montjoie@...il.com>

Applied.
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