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From: Paolo Abeni <pabeni@redhat.com>
To: Daniel Borkmann <daniel@iogearbox.net>,
	syzbot <syzbot+62e474dd92a35e3060d8@syzkaller.appspotmail.com>,
	andrii@kernel.org, ast@kernel.org, bpf@vger.kernel.org,
	davem@davemloft.net, hawk@kernel.org, john.fastabend@gmail.com,
	kafai@fb.com, kpsingh@kernel.org, kuba@kernel.org,
	linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
	songliubraving@fb.com, syzkaller-bugs@googlegroups.com,
	yhs@fb.com
Cc: toke@toke.dk, joamaki@gmail.com
Subject: Re: [syzbot] BUG: corrupted list in netif_napi_add
Date: Thu, 14 Oct 2021 15:50:00 +0200	[thread overview]
Message-ID: <f3cc125b2865cce2ea4354b3c93f45c86193545a.camel@redhat.com> (raw)
In-Reply-To: <f821df00-b3e9-f5a8-3dcb-a235dd473355@iogearbox.net>

On Wed, 2021-10-13 at 15:35 +0200, Daniel Borkmann wrote:
> On 10/13/21 1:40 PM, syzbot wrote:
> > Hello,
> > 
> > syzbot found the following issue on:
> 
> [ +Paolo/Toke wrt veth/XDP, +Jussi wrt bond/XDP, please take a look, thanks! ]

For the records: Toke and me are actively investigating this issue and
the other recent related one. So far we could not find anything
relevant. 

The onluy note is that the reproducer is not extremelly reliable - I
could not reproduce locally, and multiple syzbot runs on the same code
give different results. Anyhow, so far the issue was only observerable
on a specific 'next' commit which is currently "not reachable" from any
branch. I'm wondering if the issue was caused by some incosistent
status of such tree.

Cheers,

Paolo


  reply	other threads:[~2021-10-14 13:50 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-13 11:40 [syzbot] BUG: corrupted list in netif_napi_add syzbot
2021-10-13 13:35 ` Daniel Borkmann
2021-10-14 13:50   ` Paolo Abeni [this message]
2021-10-18 14:04     ` Vlad Buslov
2021-10-18 15:42       ` Jakub Kicinski
2021-10-18 16:12         ` Vlad Buslov
2021-10-18 23:31           ` Saeed Mahameed
2021-10-18 17:40         ` Toke Høiland-Jørgensen
2021-10-18 17:58           ` Jakub Kicinski
2021-10-19 10:11     ` Jussi Maki
2021-10-13 14:41 ` Paolo Abeni
2021-12-14  7:52 ` syzbot
2021-12-14 17:56   ` Dmitry Vyukov

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