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Date:   Fri, 16 Oct 2020 12:04:03 +0200
From:   Dmitry Vyukov <dvyukov@...gle.com>
To:     Jakub Kicinski <kuba@...nel.org>
Cc:     syzbot <syzbot+5609d37b3a926aad75b7@...kaller.appspotmail.com>,
        NetFilter <netfilter-devel@...r.kernel.org>,
        Pablo Neira Ayuso <pablo@...filter.org>,
        syzkaller <syzkaller@...glegroups.com>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        LKML <linux-kernel@...r.kernel.org>,
        netdev <netdev@...r.kernel.org>,
        syzkaller-bugs <syzkaller-bugs@...glegroups.com>
Subject: Re: bpf-next test error: BUG: program execution failed: executor 0:
 exit status 67

On Thu, Oct 15, 2020 at 8:04 PM Jakub Kicinski <kuba@...nel.org> wrote:
> > > <syzbot+5609d37b3a926aad75b7@...kaller.appspotmail.com> wrote:
> > > >
> > > > Hello,
> > > >
> > > > syzbot found the following issue on:
> > > >
> > > > HEAD commit:    e688c3db bpf: Fix register equivalence tracking.
> > > > git tree:       bpf-next
> > > > console output: https://syzkaller.appspot.com/x/log.txt?x=13d3c678500000
> > > > kernel config:  https://syzkaller.appspot.com/x/.config?x=ea7dc57e899da16d
> > > > dashboard link: https://syzkaller.appspot.com/bug?extid=5609d37b3a926aad75b7
> > > > compiler:       gcc (GCC) 10.1.0-syz 20200507
> > > >
> > > > IMPORTANT: if you fix the issue, please add the following tag to the commit:
> > > > Reported-by: syzbot+5609d37b3a926aad75b7@...kaller.appspotmail.com
> > > >
> > > > executing program
> > > > 2020/10/15 14:32:51 BUG: program execution failed: executor 0: exit status 67
> > > > iptable checkpoint filter/2: getsockopt(IPT_SO_GET_INFO) (errno 22)
> > > > loop exited with status 67
> > > >
> > > > iptable checkpoint filter/2: getsockopt(IPT_SO_GET_INFO) (errno 22)
> > > > loop exited with status 67
> > >
> > > +netfilter maintainers
> > >
> > > It seems one of these recent commits broke netfiler.
> > > Since syzkaller uses netfiler for sandboxing, syzbot is currently down
> > > on bpf-next and linux-next. Other trees will follow once they merge
> > > the breakage.
> >
> > Do you have this?
> >
> > d25e2e9388ed ("netfilter: restore NF_INET_NUMHOOKS")
>
> Ah, you're saying it's just linux-next and bpf-next that's down.
> I think the quoted fix will hit bpf-next in a few hours.
>
> Thanks!

Yes, stopped happening. Phew!

#syz fix: netfilter: restore NF_INET_NUMHOOKS

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