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=-7.3 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 B68BEC433E0 for ; Thu, 21 Jan 2021 14:31:44 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (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 4619B20897 for ; Thu, 21 Jan 2021 14:31:44 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4619B20897 Authentication-Results: mail.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=suse.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from list by lists.xenproject.org with outflank-mailman.72116.129537 (Exim 4.92) (envelope-from ) id 1l2azh-0007p4-Hr; Thu, 21 Jan 2021 14:31:29 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 72116.129537; Thu, 21 Jan 2021 14:31:29 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1l2azh-0007ox-EO; Thu, 21 Jan 2021 14:31:29 +0000 Received: by outflank-mailman (input) for mailman id 72116; Thu, 21 Jan 2021 14:31:28 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1l2azf-0007os-VE for xen-devel@lists.xen.org; Thu, 21 Jan 2021 14:31:27 +0000 Received: from mx2.suse.de (unknown [195.135.220.15]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id 8653673a-c162-403b-800e-24b6ac8d2172; Thu, 21 Jan 2021 14:31:27 +0000 (UTC) Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 261A3AB7A; Thu, 21 Jan 2021 14:31:26 +0000 (UTC) X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: 8653673a-c162-403b-800e-24b6ac8d2172 X-Virus-Scanned: by amavisd-new at test-mx.suse.de DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1611239486; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=zpLtvu5Ohb2R53GtEEtWCh6K6G5MQ/ZY+jcvJKeYyww=; b=EmUF4sE08VXQIUjZUR/qtCScWk3ES5Rc7hclCUA/qlBenVbOstf28ESRJ+6aGM9zWqMDVV nWZRts/PYMy/kYPGfPpoCmaSEUi64/Haazx4mGAYtdgYxzSyhaEwtWAYPpJRvYB6Jztioa SY+AIcwSQnQbgUVWbBypjdf3BiiCeAc= Subject: Re: Xen Security Advisory 360 v1 - IRQ vector leak on x86 To: =?UTF-8?Q?Marek_Marczykowski-G=c3=b3recki?= References: <20210121142012.GB1592@mail-itl> Cc: xen-devel@lists.xen.org From: Jan Beulich Message-ID: Date: Thu, 21 Jan 2021 15:31:25 +0100 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.6.1 MIME-Version: 1.0 In-Reply-To: <20210121142012.GB1592@mail-itl> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit On 21.01.2021 15:20, Marek Marczykowski-Górecki wrote: > On Thu, Jan 21, 2021 at 02:10:48PM +0000, Xen.org security team wrote: >> MITIGATION >> ========== >> >> Not running HVM guests with PCI pass through devices will avoid the >> vulnerability. Note that even non-malicious guests can trigger this >> vulnerability as part of normal operation. > > Does the 'on_reboot="destroy"' mitigate the issue too? Or on_soft_reset? I don't think so, no. Jan