From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756080Ab1LWARP (ORCPT ); Thu, 22 Dec 2011 19:17:15 -0500 Received: from terminus.zytor.com ([198.137.202.10]:47054 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751413Ab1LWARM (ORCPT ); Thu, 22 Dec 2011 19:17:12 -0500 Message-ID: <4EF3C87D.5030608@zytor.com> Date: Thu, 22 Dec 2011 16:17:01 -0800 From: "H. Peter Anvin" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:8.0) Gecko/20111115 Thunderbird/8.0 MIME-Version: 1.0 To: Linus Torvalds CC: Paolo Bonzini , linux-kernel@vger.kernel.org, security@kernel.org, pmatouse@redhat.com, agk@redhat.com, jbottomley@parallels.com, mchristi@redhat.com, msnitzer@redhat.com Subject: Re: [PATCH 2/3] block: fail SCSI passthrough ioctls on partition devices References: <1324576939-23619-1-git-send-email-pbonzini@redhat.com> <1324576939-23619-3-git-send-email-pbonzini@redhat.com> <4EF38269.7080804@redhat.com> <4EF391A6.2040504@redhat.com> <4EF3AA74.1060801@redhat.com> In-Reply-To: X-Enigmail-Version: 1.3.4 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 12/22/2011 02:25 PM, Linus Torvalds wrote: > I don't *think* anybody does something as crazy as giving actual block > device ownership to people, but I don't know... It's quite common and often very necessary to do, to allow a user to manipulate a device that is not intended to be mounted. -hpa