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

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Date:	Thu, 21 Aug 2014 15:22:53 +0200
From:	Richard Weinberger <richard@....at>
To:	Christoph Hellwig <hch@...radead.org>,
	"Eric W. Biederman" <ebiederm@...ssion.com>
CC:	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

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 <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.

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.

Thanks,
//richard
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