From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH] ipv6: addrconf: fix /proc/net/if_inet6
Date: Tue, 16 Oct 2012 14:55:51 -0400 (EDT)
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Cc: janhinnerk.stosch@gmail.com, netdev@vger.kernel.org,
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From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Tue, 16 Oct 2012 19:37:27 +0200

> From: Eric Dumazet <edumazet@google.com>
> 
> Commit 1d5783030a1 (ipv6/addrconf: speedup /proc/net/if_inet6 filling)
> added bugs hiding some devices from if_inet6 and breaking applications.
> 
> "ip -6 addr" could still display all IPv6 addresses, while "ifconfig -a"
> couldnt.
> 
> One way to reproduce the bug is by starting in a shell :
> 
> unshare -n /bin/bash
> ifconfig lo up
> 
> And in original net namespace, lo device disappeared from if_inet6
> 
> Reported-by: Jan Hinnerk Stosch <janhinnerk.stosch@gmail.com>
> Signed-off-by: Eric Dumazet <edumazet@google.com>
> Cc: Mihai Maruseac <mihai.maruseac@gmail.com>

Applied and queued up for -stable, thanks.