Re: conntrackd, internal cache keeps filling up

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Martin Kraus <lists_mk@xxxxxxxxxxx> wrote:
> On Mon, May 12, 2014 at 06:35:38PM +0200, Pablo Neira Ayuso wrote:
> > > current kernel is 3.13.7. 
> > > 
> > > we already hit a bug in the official 3.2 kernel packaged with wheezy where 
> > > our scan for heartbleed vulnerability would cause conntrackd to kernel panic
> > > the router.
> > 
> > Please, provide more information on how to reproduce the problem that
> > you're noticing. Thank you.
> 
> regarding the kernel panic on 3.2 a colleague of mine was using nmap with it's
> heartbleed plugin
> 
> nmap --script ssl-heartbleed -sT -oX logfile.log 10.0.0.0/20
> 
> http://nmap.org/nsedoc/scripts/ssl-heartbleed.html
> 
> it took about 30 minutes to trigger the problem.
[..]

>         NetlinkEventsReliable On

known broken until at least Linux 3.6, see f.e.

5b423f6a40a0327f9d40bc8b97ce9be266f74368
("netfilter: nf_conntrack: fix racy timer handling with reliable events")
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