netdev - Re: [PATCH] net: use net->count to check whether a netns is alive or not

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>] [<thread-prev] [day] [month] [year] [list]

Date:   Mon, 13 Mar 2017 16:03:16 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     avagin@...nvz.org
Cc:     netdev@...r.kernel.org, grawity@...il.com, stable@...r.kernel.org
Subject: Re: [PATCH] net: use net->count to check whether a netns is alive
 or not

From: Andrei Vagin <avagin@...nvz.org>
Date: Sun, 12 Mar 2017 21:36:18 -0700

> The previous idea was to check whether a net namespace is in
> net_exit_list or not. It doesn't work, because net->exit_list is used in
> __register_pernet_operations and __unregister_pernet_operations where
> all namespaces are added to a temporary list to make cleanup in a error
> case, so list_empty(&net->exit_list) always returns false.
> 
> Reported-by: Mantas Mikulėnas <grawity@...il.com>
> Fixes: 002d8a1a6c11 ("net: skip genenerating uevents for network namespaces that are exiting")
> Signed-off-by: Andrei Vagin <avagin@...nvz.org>

Applied and queued up for -stable, thanks.