From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,URIBL_SBL,URIBL_SBL_A autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 702C6C31E40 for ; Fri, 9 Aug 2019 06:41:38 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 4479620C01 for ; Fri, 9 Aug 2019 06:41:38 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4479620C01 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:56654 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hvyan-0004y7-Ik for qemu-devel@archiver.kernel.org; Fri, 09 Aug 2019 02:41:37 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:46791) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hvya0-0004EA-8q for qemu-devel@nongnu.org; Fri, 09 Aug 2019 02:40:49 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hvyZz-0006i7-45 for qemu-devel@nongnu.org; Fri, 09 Aug 2019 02:40:48 -0400 Received: from mx1.redhat.com ([209.132.183.28]:58240) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1hvyZy-0006gq-Uu for qemu-devel@nongnu.org; Fri, 09 Aug 2019 02:40:47 -0400 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 400028E237; Fri, 9 Aug 2019 06:40:45 +0000 (UTC) Received: from localhost.localdomain (unknown [10.74.10.36]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 1C2E319C70; Fri, 9 Aug 2019 06:40:38 +0000 (UTC) From: P J P To: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Date: Fri, 9 Aug 2019 12:08:33 +0530 Message-Id: <20190809063835.6717-1-ppandit@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.26]); Fri, 09 Aug 2019 06:40:45 +0000 (UTC) Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH v3 0/2] scsi: lsi: break infinite loop after 10k instructions X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Fam Zheng , Prasad J Pandit , Marcelo Tosatti , Mark Cave-Ayland , QEMU Developers , Bugs SysSec , Paolo Bonzini , Stefano Garzarella Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Prasad J Pandit Hello, While executing script, the LSI SCSI Adapter emulator could run into an infinite loop, if next instruction read by 's->dsp' index has an empty opcode. Raise an illegal instruction interrupt and exit the loop after 10k iterations. -> https://lists.gnu.org/archive/html/qemu-devel/2019-08/msg01427.html Thank you. -- Prasad J Pandit (2): scsi: lsi: exit infinite loop while executing script (CVE-2019-12068) scsi: lsi: use macro LSI_MAX_INSN instead of a magic number hw/scsi/lsi53c895a.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) --=20 2.21.0