netdev - network namespace + bridge visibility

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Date:	Fri, 29 Mar 2013 00:19:18 +0600
From:	Марк Коренберг 
	<socketpair@...il.com>
To:	netdev@...r.kernel.org
Subject: network namespace + bridge visibility

==========================
mmarkk@...c:~# brctl addbr qwe
mmarkk@...c:~# unshare -n /bin/bash
root@...c:~# ip link
14: lo: <LOOPBACK> mtu 16436 qdisc noop state DOWN
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
root@...c:~# brctl show
bridge name bridge id STP enabled interfaces
qwe 8000.000000000000 no
root@...c:~# brctl delbr qwe
bridge qwe doesn't exist; can't delete it
=============================

So, network device is not available, but present in list of bridges.
This is the bug, as I think.

Reproducible in linux kernels 3.8.2 and 3.2.0

--
Segmentation fault
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html