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From: Oliver <olipro@8.c.9.b.0.7.4.0.1.0.0.2.ip6.arpa>
To: Pablo Neira Ayuso <pablo@netfilter.org>
Cc: netfilter-devel@vger.kernel.org
Subject: Re: [PATCH] death_by_event() does not check IPS_DYING_BIT - race condition against ctnetlink_del_conntrack
Date: Fri, 31 Aug 2012 02:19:36 +0200	[thread overview]
Message-ID: <2118331.Ka640JXjym@gentoovm> (raw)
In-Reply-To: <20120830183950.GB13190@1984>

On Thursday 30 August 2012 20:39:50 Pablo Neira Ayuso wrote:
> Interesting, how are those assumptions fulfilled?

Well, timing of course ;) - essentially, traffic paths are ensured longer than 
the actual time for replication of conntrack state.


> Agreed. But I don't come with any netfilter change that may result in
> that problem you're reporting. You'll have to debug this and get back
> to me with more information.

You can disregard this, turned out to be due to the unfortunate fact that 
net.ipv4.netfilter.ip_conntrack_tcp_be_liberal is of course replaced by 
net.netfilter.nf_conntrack_tcp_be_liberal under 3.4

Please feel free to send me your latest rework of the patch and I will be 
happy to test it out.

Kind Regards,
Oliver

  reply	other threads:[~2012-08-31  0:19 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-08-27  9:33 [PATCH] death_by_event() does not check IPS_DYING_BIT - race condition against ctnetlink_del_conntrack Oliver
2012-08-28 10:52 ` Pablo Neira Ayuso
2012-08-28 17:16   ` Oliver
2012-08-28 23:10     ` Oliver
2012-08-30  0:52       ` Pablo Neira Ayuso
2012-08-30  2:05         ` Oliver
2012-08-30  2:25           ` Pablo Neira Ayuso
     [not found] ` <5427975.6moJlq4F9d@gentoovm>
     [not found]   ` <20120830025009.GA16782@1984>
2012-08-30  3:09     ` Oliver
2012-08-30 10:34       ` Pablo Neira Ayuso
2012-08-30 12:28         ` Oliver
2012-08-30 12:39           ` Oliver
2012-08-30 16:22           ` Pablo Neira Ayuso
2012-08-30 17:49             ` Oliver
2012-08-30 18:39               ` Pablo Neira Ayuso
2012-08-31  0:19                 ` Oliver [this message]
2012-08-31  9:27                   ` Pablo Neira Ayuso

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