From mboxrd@z Thu Jan  1 00:00:00 1970
From: Florian Westphal <fw@strlen.de>
Subject: Re: [nft] segfault bug in simple ruleset, regression?
Date: Wed, 9 Sep 2015 17:29:24 +0200
Message-ID: <20150909152924.GB24810@breakpoint.cc>
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 <20150909142903.GA3447@salvia>
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Cc: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>,
	Netfilter Development Mailing list
	<netfilter-devel@vger.kernel.org>,
	Patrick McHardy <kaber@trash.net>, fw@strlen.de
To: Pablo Neira Ayuso <pablo@netfilter.org>
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Pablo Neira Ayuso <pablo@netfilter.org> wrote:
> > flush ruleset
> > table inet filter {
> >         chain test0 {
> >         }
> > 
> >         chain test1 {
> >         }
> > 
> >         chain test2 {
> >         }
> > 
> >         chain test {
> >                 oif vmap {
> >                         eth0 : jump test0,
> >                         eth1 : jump test1,
> >                         eth2 : jump test2
> >                 }
> >         }
> > }
> > ========== 8< ==========
> > 
> > loaded with:
> >  % nft -f file
> 
> I cannot reproduce this here using this:

I can reproduce it, but with slight tweak.

flush ruleset
table inet filter {
        chain test0 {
        }
        chain test {
                oif vmap {
                        eth0 : jump test0,
                }
        }
}

(load it with nft -f )

Then edit file to add 2nd chain:
flush ruleset
table inet filter {
        chain test0 {
        }
        chain test1 {
        }
        chain test {
                oif vmap {
                        eth0 : jump test0,
                        lo: jump test1,
                }
        }
}

load it. poof..