linux-kernel - Re: [bug] crypto/vmx/p8_ghash memory corruption in 4.8-rc7

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Message-ID: <20160928130913.GA21123@gondor.apana.org.au>
Date:   Wed, 28 Sep 2016 21:09:13 +0800
From:   Herbert Xu <herbert@...dor.apana.org.au>
To:     Marcelo Cerri <marcelo.cerri@...onical.com>
Cc:     Jan Stancek <jstancek@...hat.com>,
        rui y wang <rui.y.wang@...el.com>,
        mhcerri@...ux.vnet.ibm.com, leosilva@...ux.vnet.ibm.com,
        pfsmorigo@...ux.vnet.ibm.com, linux-crypto@...r.kernel.org,
        linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Subject: Re: [bug] crypto/vmx/p8_ghash memory corruption in 4.8-rc7

On Wed, Sep 28, 2016 at 09:55:58AM -0300, Marcelo Cerri wrote:
> 
> Great! If we check the descsize every time a fallback tfm is allocated
> that should be enough to prevent bigger problems such as memory
> corruptions.

Yes a check wouldn't hurt.
 
> Can I move ghash_desc_ctx to a header file under include/crypto/? Or do
> you do you prefer to do that?

No you can go ahead and do the move.

> Maybe include/crypto/internal/hash.h or a new header file
> include/crypto/internal/ghash.h ?

Let's put it in include/crypto/ghash.h.

Thanks,
-- 
Email: Herbert Xu <herbert@...dor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt