netdev - Re: IPv6 FIB related crash with MACVLANs in 3.9.11+ kernel.

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] [thread-next>] [day] [month] [year] [list]

Date:	Mon, 29 Sep 2014 13:39:37 -0700
From:	Cong Wang <cwang@...pensource.com>
To:	Ben Greear <greearb@...delatech.com>
Cc:	Hannes Frederic Sowa <hannes@...essinduktion.org>,
	Hongmei Li <duckcncn@...il.com>,
	netdev <netdev@...r.kernel.org>
Subject: Re: IPv6 FIB related crash with MACVLANs in 3.9.11+ kernel.

On Mon, Sep 29, 2014 at 12:48 PM, Ben Greear <greearb@...delatech.com> wrote:
>
> We are going to be running up to 20 concurrent scripts that
> will be dumping routes & ips, and configuring ip addresses
> and routes during bringup.
>
> I don't have a simple stand-alone way to reproduce this,
> but at least when we reported the problem is was very easy
> for us to reproduce with our tool.
>
> Maybe 20 scripts running in parallel that randomly configured and dumped routes
> and ip addresses on random interfaces would do the trick?
>

I think the most important question is why is this related with macvlan?
IPv6 is L3 while macvlan pure L2, if this is a IPv6 routing bug, it should
not be limited to macvlan.

What does your IPv6 routing table look like? And how do you configure those
macvlan interfaces?
--
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