[CFT][PATCH 00/10] Making new mounts of proc and sysfs as safe as bind mounts (take 2)

Serge Hallyn serge.hallyn at ubuntu.com
Thu May 28 14:08:39 UTC 2015


Quoting Andy Lutomirski (luto at amacapital.net):
> On Fri, May 22, 2015 at 10:39 AM, Eric W. Biederman
> <ebiederm at xmission.com> wrote:
> > I had hoped to get some Tested-By's on that patch series.
> 
> Sorry, I've been totally swamped.
> 
> I suspect that Sandstorm is okay, but I haven't had a chance to test
> it for real.  Sandstorm makes only limited use of proc and sysfs in
> containers, but I'll see if I can test it for real this weekend.

Testing this with unprivileged containers, I get

lxc-start: conf.c: lxc_mount_auto_mounts: 808 Operation not permitted - error mounting sysfs on /usr/lib/x86_64-linux-gnu/lxc/sys/devices/virtual/net flags 0

> > Oh well.  The fundamentals seem sound, and my biggest concern the
> > implicit nodev does not apply so I will put this patchset in linux-next
> > and aim at merging it in the next merge window.  Hopefully that will
> > leave enough time catch problems.
> >
> > Eric
> >
> 
> 
> 
> -- 
> Andy Lutomirski
> AMA Capital Management, LLC
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