From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755424AbaHUOO7 (ORCPT ); Thu, 21 Aug 2014 10:14:59 -0400 Received: from out01.mta.xmission.com ([166.70.13.231]:52817 "EHLO out01.mta.xmission.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755195AbaHUOO5 (ORCPT ); Thu, 21 Aug 2014 10:14:57 -0400 From: ebiederm@xmission.com (Eric W. Biederman) To: Richard Weinberger Cc: Christoph Hellwig , Linus Torvalds , Linux Containers , linux-fsdevel , LKML , "libvir-list\@redhat.com" , "Daniel P. Berrange" References: <87fvhav3ic.fsf@x220.int.ebiederm.org> <87vbpm4f4y.fsf@x220.int.ebiederm.org> <20140821131257.GA4264@infradead.org> <53F5F2AD.5010607@nod.at> Date: Thu, 21 Aug 2014 09:09:50 -0500 In-Reply-To: <53F5F2AD.5010607@nod.at> (Richard Weinberger's message of "Thu, 21 Aug 2014 15:22:53 +0200") Message-ID: <87k362vsr5.fsf@x220.int.ebiederm.org> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-XM-AID: U2FsdGVkX18s//FuXUk60hD+sFHmStWtVXZFVsIwE/0= X-SA-Exim-Connect-IP: 107.0.249.3 X-SA-Exim-Mail-From: ebiederm@xmission.com X-Spam-Report: * -1.0 ALL_TRUSTED Passed through trusted hosts only via SMTP * 0.0 T_TM2_M_HEADER_IN_MSG BODY: T_TM2_M_HEADER_IN_MSG * 0.8 BAYES_50 BODY: Bayes spam probability is 40 to 60% * [score: 0.4987] * -0.0 DCC_CHECK_NEGATIVE Not listed in DCC * [sa01 1397; Body=1 Fuz1=1 Fuz2=1] * 0.0 T_TooManySym_01 4+ unique symbols in subject * 1.2 XMSubMetaSxObfu_03 Obfuscated Sexy Noun-People * 1.0 XMSubMetaSx_00 1+ Sexy Words X-Spam-DCC: XMission; sa01 1397; Body=1 Fuz1=1 Fuz2=1 X-Spam-Combo: **;Richard Weinberger X-Spam-Relay-Country: Subject: Re: [GIT PULL] namespace updates for v3.17-rc1 X-Spam-Flag: No X-SA-Exim-Version: 4.2.1 (built Wed, 14 Nov 2012 13:58:17 -0700) X-SA-Exim-Scanned: Yes (on in01.mta.xmission.com) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Richard Weinberger writes: > Am 21.08.2014 15:12, schrieb Christoph Hellwig: >> On Wed, Aug 20, 2014 at 09:53:49PM -0700, Eric W. Biederman wrote: >>> Richard Weinberger writes: >>> >>>> On Wed, Aug 6, 2014 at 2:57 AM, Eric W. Biederman wrote: >>>> >>>> This commit breaks libvirt-lxc. >>>> libvirt does in lxcContainerMountBasicFS(): >>> >>> The bugs fixed are security issues, so if we have to break a small >>> number of userspace applications we will. Anything that we can >>> reasonably do to avoid regressions will be done. >> >> Can you explain the security issues in detail? Breaking common >> userspace like libvirt-lxc with just a little bit of handwaiving is >> entirely unacceptable. > > It looks like commit 87b47932f40a11280584bce260cbdb3b5f9e8b7d in > git.kernel.org/cgit/linux/kernel/git/ebiederm/user-namespace.git for-next > unbreaks libvirt-lxc. > I hope it hits Linus tree and -stable before the offending commit hits users. I plan to send the pull request to Linus as soon as I have caught my breath (from all of the conferences this week) that I can be certain I am thinking clearly and not rushing things. Eric