From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:34880) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1co8YL-0004gw-3Y for qemu-devel@nongnu.org; Wed, 15 Mar 2017 09:01:26 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1co8YG-0001mm-3b for qemu-devel@nongnu.org; Wed, 15 Mar 2017 09:01:21 -0400 Received: from mx1.redhat.com ([209.132.183.28]:54742) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1co8YF-0001mW-UP for qemu-devel@nongnu.org; Wed, 15 Mar 2017 09:01:16 -0400 Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id DB991C208079 for ; Wed, 15 Mar 2017 13:01:15 +0000 (UTC) From: Markus Armbruster References: <20170315081641.20588-1-pbonzini@redhat.com> Date: Wed, 15 Mar 2017 14:01:13 +0100 In-Reply-To: <20170315081641.20588-1-pbonzini@redhat.com> (Paolo Bonzini's message of "Wed, 15 Mar 2017 09:16:41 +0100") Message-ID: <87zigmitie.fsf@dusky.pond.sub.org> MIME-Version: 1.0 Content-Type: text/plain Subject: Re: [Qemu-devel] [PATCH v2] coverity-model: model address_space_read/write List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Paolo Bonzini Cc: qemu-devel@nongnu.org Paolo Bonzini writes: > Commit eb7eeb8 ("memory: split address_space_read and > address_space_write", 2015-12-17) made address_space_rw > dispatch to one of address_space_read or address_space_write, > rather than vice versa. > > For callers of address_space_read and address_space_write this > causes false positive defects when Coverity sees a length-8 write in > address_space_read and a length-4 (e.g. int*) buffer to read into. > As long as the size of the buffer is okay, this is a false positive. > > Reflect the code change into the model. > > Signed-off-by: Paolo Bonzini Reviewed-by: Markus Armbruster Expect a pull request shortly.