linux-kernel - Re: [GIT PULL] namespace updates for v3.17-rc1

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Date:	Thu, 21 Aug 2014 06:12:57 -0700
From:	Christoph Hellwig <hch@...radead.org>
To:	"Eric W. Biederman" <ebiederm@...ssion.com>
Cc:	Richard Weinberger <richard.weinberger@...il.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Linux Containers <containers@...ts.linux-foundation.org>,
	linux-fsdevel <linux-fsdevel@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	"libvir-list@...hat.com" <libvir-list@...hat.com>,
	"Daniel P. Berrange" <berrange@...hat.com>
Subject: Re: [GIT PULL] namespace updates for v3.17-rc1

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

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