From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephan Mueller Subject: Re: [PATCH 5/8] lib/scatterlist: Add sg_len helper Date: Wed, 09 Sep 2015 18:39:12 +0200 Message-ID: <1973388.rNzrp31mTc@tauon.atsec.com> References: <20150909161454.2828.70445.stgit@tstruk-mobl1> <2806088.jJiH2yOvUX@tauon.atsec.com> <55F05EC4.5080408@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7Bit Cc: herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, qat-linux@intel.com To: Tadeusz Struk Return-path: Received: from mail.eperm.de ([89.247.134.16]:33825 "EHLO mail.eperm.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752409AbbIIQjR (ORCPT ); Wed, 9 Sep 2015 12:39:17 -0400 In-Reply-To: <55F05EC4.5080408@intel.com> Sender: linux-crypto-owner@vger.kernel.org List-ID: Am Mittwoch, 9. September 2015, 09:31:00 schrieb Tadeusz Struk: Hi Tadeusz, >On 09/09/2015 09:27 AM, Stephan Mueller wrote: >>> +int sg_len(struct scatterlist *sg) >> >> unsigned int? > >No, because it can return -EINVAL if you call it before you set the key. I see. But, shouldn't there be an overflow check? Maybe not here, but in the cases where the function is invoked. There is a kmalloc(src_len) without a check for negative values. Ciao Stephan