[Bug 1263738] Re: login console 0 in user namespace container is not configured right

[Seth Forshee]

Serge: I've got a patch that fixes the problem. I've uploaded a test
build along with the patch to:

http://people.canonical.com/~sforshee/lp1263738/linux-3.13.0-3.18~lp1263738v201401152110/

I still want to verify that it's impossible to steal a tty from a
process in a parent namespace, but if that checks out and the patch
looks good to you I'll send it upstream.

I do think however that upstart should also be issuing TIOCNOTTY after
opening /dev/console. It seems fairly clear from the code that the
intention is to not own the console device.

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https://bugs.launchpad.net/bugs/1263738

Title:
  login console 0 in user namespace container is not configured right

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