linux-kernel - Re: [PATCH v3 3/9] crypto: stm32/cryp

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <20211126052401.GA17410@gondor.apana.org.au>
Date:   Fri, 26 Nov 2021 13:24:01 +0800
From:   Herbert Xu <herbert@...dor.apana.org.au>
To:     Nicolas Toromanoff <nicolas.toromanoff@...s.st.com>
Cc:     "David S . Miller" <davem@...emloft.net>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        Marek Vasut <marex@...x.de>, Ard Biesheuvel <ardb@...nel.org>,
        linux-crypto@...r.kernel.org,
        linux-stm32@...md-mailman.stormreply.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 3/9] crypto: stm32/cryp - fix CTR counter carry

On Thu, Nov 18, 2021 at 04:07:50PM +0100, Nicolas Toromanoff wrote:
> STM32 CRYP hardware doesn't manage CTR counter bigger than max U32, as
> a workaround, at each block the current IV is saved, if the saved IV
> lower u32 is 0xFFFFFFFF, the full IV is manually incremented, and set
> in hardware.
> Fixes: bbb2832620ac ("crypto: stm32 - Fix sparse warnings")
> 
> Signed-off-by: Nicolas Toromanoff <nicolas.toromanoff@...s.st.com>
> ---
>  drivers/crypto/stm32/stm32-cryp.c | 25 ++++++++++++-------------
>  1 file changed, 12 insertions(+), 13 deletions(-)
> 
> diff --git a/drivers/crypto/stm32/stm32-cryp.c b/drivers/crypto/stm32/stm32-cryp.c
> index 7b55ad6d2f1a..9d6ccf1eb4ce 100644
> --- a/drivers/crypto/stm32/stm32-cryp.c
> +++ b/drivers/crypto/stm32/stm32-cryp.c
> @@ -163,7 +163,7 @@ struct stm32_cryp {
>  	struct scatter_walk     in_walk;
>  	struct scatter_walk     out_walk;
>  
> -	u32                     last_ctr[4];
> +	__be32                  last_ctr[4];

This introduces a sparse warning, please fix and resubmit.

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