netdev - Re: [PATCH -next, V3 0/2] net: force refragmentation for DF reassembed skbs

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]

Message-ID: <1432634245.17881.57.camel@sakura.staff.proxad.net>
Date:	Tue, 26 May 2015 11:57:25 +0200
From:	Maxime Bizon <mbizon@...ebox.fr>
To:	Florian Westphal <fw@...len.de>
Cc:	David Miller <davem@...emloft.net>, netdev@...r.kernel.org,
	hannes@...essinduktion.org
Subject: Re: [PATCH -next, V3 0/2] net: force refragmentation for DF
 reassembed skbs

On Fri, 2015-05-22 at 21:26 +0200, Florian Westphal wrote:

Hello,

> But it does happen, see e.g. following bug report:
> http://marc.info/?l=linux-netdev&m=139870308431986&w=2
> 
> Maxime, do you recall what type of traffic generates
> the DF-fragments you reported?

Yep

We are an ISP and provide our own home gateway to the subscribers, which
ends up routing traffic of a large range of end user devices.

In that case, the frag+DF traffic was seen in an exchange between a
femtocell and a femto GW during the IPsec IKE exchange, more precisely
on the IKE_AUTH message sent from the femto GW.

You can contact me privately if you need more details.

-- 
Maxime

--
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