Received: by 2002:a05:6358:16cc:b0:ea:6187:17c9 with SMTP id r12csp7384849rwl; Fri, 30 Dec 2022 07:46:34 -0800 (PST) X-Google-Smtp-Source: AMrXdXvITmCuOznJNzOrpfJFMMSBaSEztPQ0egD9YnbRnXqClDEOyYCBDXe2tBv6i7tYL9eoLeXG X-Received: by 2002:a17:90a:9e5:b0:219:f351:d55 with SMTP id 92-20020a17090a09e500b00219f3510d55mr48533000pjo.44.1672415194486; Fri, 30 Dec 2022 07:46:34 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1672415194; cv=none; d=google.com; s=arc-20160816; b=fDShhYP3kTVsiU7Am24zbQT8pBTPG7hyiJOtLMUtNVUFsX+AwwVAOFMMnbmQwA54ws tpV1XjgRGmwzkT5bl3aecPDyRIsGCPRcL7NxXwRdflWzIt27DfPwpLN5+VFF3o3H8ZjL viqOCFPClAt0GZo8LNmbQEhm6JOmra0X3IqOLMQ0W6ANxdt/g/PZWM2BfDfnuTyspV0R H2lS9NUg/L8ff/mV4H3p8GKgs1Gb6UZ/ZojAvW1kiXhffy++89R8mCYymIHgGonxmz/u E+wOZDwrbW6+zpFX2lcSVcpXIct8dYi3IQwBOYVXVKBfzDvuEH1KtKPb/XLxv0Lguo4A 1lbA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:in-reply-to:content-disposition:mime-version :references:message-id:subject:cc:to:from:date; bh=Ga1szMRVe1N881o5/2HHONWCOjdpWn1rOI54evROWbE=; b=lZkai7hhVCg0F9M2hH3W2KmOCkVya1hxxbv+PD1dorDhwiHNcl1en03WL/Y+aDWgxP wOe4BrtrA0Dv2EIj6lISBuSwd+0/NUMb6P7maU2C4fNthsvD+C/bXDSQM68AkJVTO6Bw CixKf5UBQmuOVgLWnFKzBTM0oKDOJmil/y8vLTiOOIt/5B0h75CIIZo7iOnCIa9X55h0 NYuHpeLSXjM5H8Iazp7Pi3n0ITVyOhg1hkTFqn/EGRmciDt0JW/e/TaA7jZPwHq6s8FO utExpgzEvIKgESDqGY6ccG7XQ0raWFKY+6el/YcCSFJ0wsxqvDPwB7toxH9KlDyCIlj7 hTdw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-crypto-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-crypto-owner@vger.kernel.org Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id mh10-20020a17090b4aca00b0021949ab4eefsi27928311pjb.65.2022.12.30.07.46.13; Fri, 30 Dec 2022 07:46:34 -0800 (PST) Received-SPF: pass (google.com: domain of linux-crypto-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-crypto-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-crypto-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235183AbiL3PlK (ORCPT + 99 others); Fri, 30 Dec 2022 10:41:10 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50194 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235259AbiL3Pkb (ORCPT ); Fri, 30 Dec 2022 10:40:31 -0500 Received: from formenos.hmeau.com (helcar.hmeau.com [216.24.177.18]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BEEA01C12A; Fri, 30 Dec 2022 07:39:58 -0800 (PST) Received: from loth.rohan.me.apana.org.au ([192.168.167.2]) by formenos.hmeau.com with smtp (Exim 4.94.2 #2 (Debian)) id 1pBHTm-00CPNM-VQ; Fri, 30 Dec 2022 23:39:32 +0800 Received: by loth.rohan.me.apana.org.au (sSMTP sendmail emulation); Fri, 30 Dec 2022 23:39:30 +0800 Date: Fri, 30 Dec 2022 23:39:30 +0800 From: Herbert Xu To: David Laight Cc: 'Roberto Sassu' , "dhowells@redhat.com" , "davem@davemloft.net" , "zohar@linux.ibm.com" , "dmitry.kasatkin@gmail.com" , "paul@paul-moore.com" , "jmorris@namei.org" , "serge@hallyn.com" , "ebiggers@kernel.org" , "linux-integrity@vger.kernel.org" , "linux-security-module@vger.kernel.org" , "keyrings@vger.kernel.org" , "linux-crypto@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "stable@vger.kernel.org" Subject: Re: [PATCH v5 1/2] lib/mpi: Fix buffer overrun when SG is too long Message-ID: References: <20221227142740.2807136-1-roberto.sassu@huaweicloud.com> <20221227142740.2807136-2-roberto.sassu@huaweicloud.com> <6949ced7c1014488b2d00ff26eba6b6b@AcuMS.aculab.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <6949ced7c1014488b2d00ff26eba6b6b@AcuMS.aculab.com> X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,SPF_HELO_NONE, SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org On Fri, Dec 30, 2022 at 01:35:07PM +0000, David Laight wrote: > > miter.length is size_t (unsigned long on 64bit) and nbytes unsigned int. miter.length is bounded by sg->length which is unsigned int. Cheers, -- Email: Herbert Xu Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt