linux-kernel - Re: netfilter regression causes lost pings "operation not permitted"

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Message-ID: <20161217122511.GB13094@breakpoint.cc>
Date:   Sat, 17 Dec 2016 13:25:11 +0100
From:   Florian Westphal <fw@...len.de>
To:     Trevor Cordes <trevor@...nopolis.ca>
Cc:     linux-kernel@...r.kernel.org, Florian Westphal <fw@...len.de>,
        Pablo Neira Ayuso <pablo@...filter.org>
Subject: Re: netfilter regression causes lost pings "operation not permitted"

Trevor Cordes <trevor@...nopolis.ca> wrote:

Sorry for late reply.

> On 2016-12-07 Trevor Cordes wrote:
> > Bisected down to:
> > 870190a9ec9075205c0fa795a09fa931694a3ff1
> > 7c9664351980aaa6a4b8837a314360b3a4ad382a
> 
> Oh!  I forgot to mention the most important point: iptable_nat module
> MUST be loaded for the bug to show up!
> 
> modprobe iptable_nat
> 
> If you rmmod it, the bug goes away.  Interestingly, the bug occurs even
> if you have every iptables table (including -t nat) completely empty
> (no rules).  All that is required is iptable_nat simply to be loaded.

Pablo, I think stable should revert both patches.

The alternative is for stable to pick up the fixes from 4.10 tree but
that requires to pull rhhashtables new rhlist interface too...

So I think revert is the way to go.

Should I take care of that?