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

[ebiederm@xmission.com (Eric W. Biederman)]

Richard Weinberger <richard@nod.at> 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 <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.
>
> 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