From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from abb.hmeau.com (abb.hmeau.com [180.181.231.80]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 61C07280035; Sun, 5 Jul 2026 08:37:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=180.181.231.80 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783240677; cv=none; b=ZSiSjhU6+A79eRx4qxUdGs0mLQm2hlZSJ+ej8JeM93SGvHKZhEa1YkTHqyZOlBWnVI4PUj4Uid6LmfmrrDFVOrSci6wx1y2fTWR6dNc+U0zsYvO4p1G+TptdP1G3kHPZvw4QUpgX9sLSSwA+x2WdUrWO3BnrBjh6QQLCEBT8X9o= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783240677; c=relaxed/simple; bh=wgwP3H3qz/nuE04obGIGsfkJJfWThh/Ml9MDo46Gkis=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=pfRKsUd3r7YbdLYWOCs3NHYaPohRWnsx0nGyMjAzjhX8nTS3J21881Y1hbArus1QbJgsaprNx0oUxawNzZIIJgJOsf1xIjPe7zPBzq/5Ci0mqQz3tMDBXv8+FiUcXMZGeoIQsVZZ50qajgQUqzsv09xRwavg+P5siaX5XubqzPI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=gondor.apana.org.au; spf=pass smtp.mailfrom=gondor.apana.org.au; dkim=pass (2048-bit key) header.d=gondor.apana.org.au header.i=@gondor.apana.org.au header.b=P5tpVYVL; arc=none smtp.client-ip=180.181.231.80 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=gondor.apana.org.au Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gondor.apana.org.au Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gondor.apana.org.au header.i=@gondor.apana.org.au header.b="P5tpVYVL" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gondor.apana.org.au; s=h01; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:cc:to:subject:message-id:date: from:content-type:reply-to; bh=G3JkHKn7CYnIQUIHAEnygms5epVvFw1YEAPwLWruV2k=; b=P5tpVYVL7QJAYSVvr12KGJdoAQCrQaDLcXkP7hPBi1Jm+R8YbaYXcyMXjrtwQUDwdWoLz/JcFtC Js8XsE/rbKykCddxK6jqX1jpcZ22BJaKnGsdMe1xV9uiUokY6m5u78XpewEnlpEYcxbbVcMX3hU3J 5BR4UdkyC/PIEg3KGd6a8FFPCoz0+J5mQtcvUjWew4vZIt9RIv+uDUXTGwpEFhfiHpJRF+OHyEhaF JyKpGON3/BTK96db4RZ96lDPQk8i8kTqtGjPmTPD8t2E2duAYJvkAmYDAVoSFRbWPOulTK3qo1qhT 6dFE4i0DASPGm8J4Xe6soqcMtecdBm5ziC5g==; Received: from loth.rohan.me.apana.org.au ([192.168.167.2]) by formenos.hmeau.com with smtp (Exim 4.98.2 #2 (Debian)) id 1wgIMD-0000000Al4S-41ay; Sun, 05 Jul 2026 16:37:47 +0800 Received: by loth.rohan.me.apana.org.au (sSMTP sendmail emulation); Sun, 05 Jul 2026 16:37:45 +0800 Date: Sun, 5 Jul 2026 16:37:45 +0800 From: Herbert Xu To: Thorsten Blum Cc: "David S. Miller" , Frank Li , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , Marek Vasut , stable@vger.kernel.org, linux-crypto@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] crypto: mxs-dcp - fix source scatterlist length access Message-ID: References: <20260621192615.277957-2-thorsten.blum@linux.dev> Precedence: bulk X-Mailing-List: linux-crypto@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260621192615.277957-2-thorsten.blum@linux.dev> On Sun, Jun 21, 2026 at 09:26:16PM +0200, Thorsten Blum wrote: > mxs_dcp_aes_block_crypt() uses sg_dma_len() without mapping the source > scatterlist with dma_map_sg() first. Therefore, sg_dma_len() is invalid > and could return zero or a stale DMA length, causing encryption and > decryption to process the wrong number of bytes when > CONFIG_NEED_SG_DMA_LENGTH=y. > > Use the original scatterlist length instead. > > Fixes: 15b59e7c3733 ("crypto: mxs - Add Freescale MXS DCP driver") > Cc: stable@vger.kernel.org > Signed-off-by: Thorsten Blum > --- > drivers/crypto/mxs-dcp.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) Patch applied. Thanks. -- Email: Herbert Xu Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt