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From: Florian Westphal <fw@strlen.de>
To: syzbot <syzbot+68a8ed58e3d17c700de5@syzkaller.appspotmail.com>
Cc: coreteam@netfilter.org, davem@davemloft.net, fw@strlen.de,
	hdanton@sina.com, jbenc@redhat.com, kadlec@blackhole.kfki.hu,
	linux-kernel@vger.kernel.org, moshe@mellanox.com,
	netdev@vger.kernel.org, netfilter-devel@vger.kernel.org,
	pablo@netfilter.org, sd@queasysnail.net,
	syzkaller-bugs@googlegroups.com, tglx@linutronix.de
Subject: Re: WARNING in geneve_exit_batch_net (2)
Date: Fri, 13 Mar 2020 02:44:35 +0100	[thread overview]
Message-ID: <20200313014435.GY979@breakpoint.cc> (raw)
In-Reply-To: <000000000000c7979105a0a311f6@google.com>

syzbot <syzbot+68a8ed58e3d17c700de5@syzkaller.appspotmail.com> wrote:
> syzbot has bisected this bug to:
> 
> commit 4e645b47c4f000a503b9c90163ad905786b9bc1d
> Author: Florian Westphal <fw@strlen.de>
> Date:   Thu Nov 30 23:21:02 2017 +0000
> 
>     netfilter: core: make nf_unregister_net_hooks simple wrapper again

No idea why this turns up, the reproducer doesn't hit any of these code
paths.

The debug splat is a false-positive; ndo_stop/list_del hasn't run yet.
I will send a fix for net tree.

  reply	other threads:[~2020-03-13  1:45 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-29  9:01 WARNING in geneve_exit_batch_net (2) syzbot
2020-03-12  7:12 ` syzbot
2020-03-13  1:44   ` Florian Westphal [this message]
2020-03-13  7:30     ` Dmitry Vyukov
2020-03-14  7:18 ` [PATCH net] geneve: move debug check after netdev unregister Florian Westphal
2020-03-15  7:43   ` David Miller

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