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=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 C849DC0650F for ; Thu, 8 Aug 2019 09:49:28 +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 9D61A2173E for ; Thu, 8 Aug 2019 09:49:28 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9D61A2173E 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]:47916 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hvf31-0001h0-Hu for qemu-devel@archiver.kernel.org; Thu, 08 Aug 2019 05:49:27 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:53869) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hvf2I-0000xB-94 for qemu-devel@nongnu.org; Thu, 08 Aug 2019 05:48:43 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hvf2H-0003Vx-BJ for qemu-devel@nongnu.org; Thu, 08 Aug 2019 05:48:42 -0400 Received: from mx1.redhat.com ([209.132.183.28]:37000) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1hvf2H-0003Vm-6C for qemu-devel@nongnu.org; Thu, 08 Aug 2019 05:48:41 -0400 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 3C74B3064FD3; Thu, 8 Aug 2019 09:48:40 +0000 (UTC) Received: from kaapi (unknown [10.65.150.157]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 43B68600C8; Thu, 8 Aug 2019 09:48:37 +0000 (UTC) Date: Thu, 8 Aug 2019 15:18:35 +0530 (IST) From: P J P X-X-Sender: pjp@kaapi To: Paolo Bonzini In-Reply-To: Message-ID: References: <20190808063340.23833-1-ppandit@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.45]); Thu, 08 Aug 2019 09:48:40 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: Re: [Qemu-devel] [PATCH] scsi: lsi: exit infinite loop while executing script (CVE-2019-12068) 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 , Bugs SysSec , QEMU Developers Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" +-- On Thu, 8 Aug 2019, Paolo Bonzini wrote --+ | I am not sure this is worth a CVE. True, it is a low one, as QEMU consumes cycles on the host. | The kernel can cause QEMU to break, but is there a practical case in which | an unprivileged user can do that? QEMU does not break, it keeps running in interruptible sleep 'S' state. They've a reproducer wherein guest does mmio calls to trigger the issue. Thank you. -- Prasad J Pandit / Red Hat Product Security Team 47AF CE69 3A90 54AA 9045 1053 DD13 3D32 FE5B 041F