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From: Christoph Hellwig <hch-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
To: "Eric W. Biederman" <ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>
Cc: Richard Weinberger
	<richard.weinberger-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
	Linux Containers
	<containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org>,
	LKML <linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	"libvir-list-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org"
	<libvir-list-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
	linux-fsdevel
	<linux-fsdevel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	Linus Torvalds
	<torvalds-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
Subject: Re: [GIT PULL] namespace updates for v3.17-rc1
Date: Thu, 21 Aug 2014 06:12:57 -0700	[thread overview]
Message-ID: <20140821131257.GA4264@infradead.org> (raw)
In-Reply-To: <87vbpm4f4y.fsf-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>

On Wed, Aug 20, 2014 at 09:53:49PM -0700, Eric W. Biederman wrote:
> Richard Weinberger <richard.weinberger-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> writes:
> 
> > On Wed, Aug 6, 2014 at 2:57 AM, Eric W. Biederman <ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org> 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.

WARNING: multiple messages have this Message-ID (diff)
From: Christoph Hellwig <hch@infradead.org>
To: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Richard Weinberger <richard.weinberger@gmail.com>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Linux Containers <containers@lists.linux-foundation.org>,
	linux-fsdevel <linux-fsdevel@vger.kernel.org>,
	LKML <linux-kernel@vger.kernel.org>,
	"libvir-list@redhat.com" <libvir-list@redhat.com>,
	"Daniel P. Berrange" <berrange@redhat.com>
Subject: Re: [GIT PULL] namespace updates for v3.17-rc1
Date: Thu, 21 Aug 2014 06:12:57 -0700	[thread overview]
Message-ID: <20140821131257.GA4264@infradead.org> (raw)
In-Reply-To: <87vbpm4f4y.fsf@x220.int.ebiederm.org>

On Wed, Aug 20, 2014 at 09:53:49PM -0700, Eric W. Biederman wrote:
> Richard Weinberger <richard.weinberger@gmail.com> writes:
> 
> > On Wed, Aug 6, 2014 at 2:57 AM, Eric W. Biederman <ebiederm@xmission.com> 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.


  parent reply	other threads:[~2014-08-21 13:12 UTC|newest]

Thread overview: 67+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-08-06  0:57 [GIT PULL] namespace updates for v3.17-rc1 Eric W. Biederman
2014-08-06  0:57 ` Eric W. Biederman
     [not found] ` <87fvhav3ic.fsf-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2014-08-06  4:46   ` Stephen Rothwell
2014-08-06  4:46     ` Stephen Rothwell
2014-08-06  4:46     ` Stephen Rothwell
     [not found]     ` <20140806144643.45e5dab8-3FnU+UHB4dNDw9hX6IcOSA@public.gmane.org>
2014-08-06  5:16       ` Eric W. Biederman
2014-08-06  5:16         ` Eric W. Biederman
     [not found]         ` <87lhr2tcyx.fsf-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2014-08-06  6:06           ` Stephen Rothwell
2014-08-06  6:06             ` Stephen Rothwell
2014-08-06  6:06             ` Stephen Rothwell
     [not found]             ` <20140806160608.218b6944-3FnU+UHB4dNDw9hX6IcOSA@public.gmane.org>
2014-08-06  6:30               ` Eric W. Biederman
2014-08-06  6:30                 ` Eric W. Biederman
2014-08-07 13:28               ` Theodore Ts'o
2014-08-07 13:28                 ` Theodore Ts'o
2014-08-13  2:46   ` Andy Lutomirski
2014-08-13  2:46     ` Andy Lutomirski
     [not found]     ` <53EAD180.4010906-kltTT9wpgjJwATOyAt5JVQ@public.gmane.org>
2014-08-13  4:17       ` Eric W. Biederman
2014-08-13  4:17         ` Eric W. Biederman
     [not found]         ` <87sil1nhut.fsf-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2014-08-13  4:38           ` Andy Lutomirski
2014-08-13  4:38             ` Andy Lutomirski
2014-08-13  4:45           ` Kenton Varda
     [not found]             ` <CAOP=4widH1rMZ1O=hzAT+M_8exdzRPA8pJ+wH29AQ9L0ogu9nw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-08-13 10:24               ` Eric W. Biederman
2014-08-13 10:24                 ` Eric W. Biederman
2014-08-15 18:41                 ` Andy Lutomirski
     [not found]                 ` <87tx5ghekp.fsf-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2014-08-13 17:03                   ` Andy Lutomirski
2014-08-13 17:03                     ` Andy Lutomirski
2014-08-14  0:03                     ` [PATCH] fs: Remove implicit nodev for new mounts in non-root userns Andy Lutomirski
2014-08-15 19:05                       ` Serge Hallyn
2014-08-15 19:16                         ` Andy Lutomirski
2014-08-15 19:16                           ` Andy Lutomirski
     [not found]                           ` <CALCETrVKq1Fxnsd9jKDi5_fcKfCJxBZ1w-zGXD3FR-pF-jLsmQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-08-15 19:37                             ` Serge Hallyn
2014-08-15 19:37                               ` Serge Hallyn
2014-08-15 19:56                               ` Andy Lutomirski
2014-08-15 19:56                                 ` Andy Lutomirski
     [not found]                                 ` <CALCETrWB0qBiyfJbapFnjxoNyNvS+aHvgc_eob3fC1j=cv+v5w-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-08-15 20:16                                   ` Serge Hallyn
2014-08-15 20:16                                     ` Serge Hallyn
     [not found]                       ` <2686c32f00b14148379e8cfee9c028c794d4aa1a.1407974494.git.luto-kltTT9wpgjJwATOyAt5JVQ@public.gmane.org>
2014-08-15 19:05                         ` Serge Hallyn
2014-08-15 20:16                         ` Serge Hallyn
2014-08-28  1:35                         ` Andy Lutomirski
2014-08-15 20:16                       ` Serge Hallyn
2014-08-28  1:35                       ` Andy Lutomirski
     [not found]                     ` <CALCETrWT_p1-5nkiAjWoeta19fkO3rDiJe9_mhRVqF8x1zXv2A-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-08-14  0:03                       ` Andy Lutomirski
2014-08-15 18:41                   ` [GIT PULL] namespace updates for v3.17-rc1 Andy Lutomirski
2014-08-20 15:06   ` Richard Weinberger
2014-08-20 15:06     ` Richard Weinberger
     [not found]     ` <CAFLxGvwi-iJRyfwv8v9fcRkiSu2d-az8W55xMPbp_d8wQKmwjg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-08-21  4:53       ` Eric W. Biederman
2014-08-21  4:53         ` Eric W. Biederman
2014-08-21  6:29         ` Richard Weinberger
     [not found]           ` <53F591E7.3010509-/L3Ra7n9ekc@public.gmane.org>
2014-08-21  7:24             ` Richard Weinberger
2014-08-21  7:24               ` Richard Weinberger
     [not found]               ` <53F59EC7.6060107-/L3Ra7n9ekc@public.gmane.org>
2014-08-21 13:54                 ` Eric W. Biederman
2014-08-21 13:54                   ` Eric W. Biederman
     [not found]         ` <87vbpm4f4y.fsf-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2014-08-21  6:29           ` Richard Weinberger
2014-08-21 13:12           ` Christoph Hellwig [this message]
2014-08-21 13:12             ` Christoph Hellwig
     [not found]             ` <20140821131257.GA4264-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
2014-08-21 13:22               ` Richard Weinberger
2014-08-21 13:22                 ` Richard Weinberger
     [not found]                 ` <53F5F2AD.5010607-/L3Ra7n9ekc@public.gmane.org>
2014-08-21 14:09                   ` Eric W. Biederman
2014-08-21 14:09                     ` Eric W. Biederman
     [not found]                     ` <87k362vsr5.fsf-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2014-09-03 21:18                       ` Richard Weinberger
2014-09-03 21:18                         ` Richard Weinberger
2014-11-25 23:15                       ` Richard Weinberger
2014-11-25 23:15                         ` Richard Weinberger
     [not found]                         ` <CAFLxGvzyhHC+QF-bFfp-yNBpCkS3JJ+RAr+5iCj0k_su9wJbGw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-11-29 16:58                           ` Richard Weinberger
2014-11-29 16:58                             ` Richard Weinberger
2014-08-21 13:43               ` Eric W. Biederman
2014-08-21 13:43                 ` Eric W. Biederman

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