linux-kernel - Re: [syzbot] possible deadlock in ___neigh

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Date:   Wed, 2 Feb 2022 10:01:01 +0100
From:   Daniel Borkmann <daniel@...earbox.net>
To:     syzbot <syzbot+5239d0e1778a500d477a@...kaller.appspotmail.com>,
        davem@...emloft.net, dsahern@...nel.org, edumazet@...gle.com,
        john.fastabend@...il.com, kuba@...nel.org,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        roopa@...dia.com, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] possible deadlock in ___neigh_create

On 2/2/22 7:43 AM, syzbot wrote:
> syzbot has found a reproducer for the following issue on:
> 
> HEAD commit:    e4d2763f9aaf Merge branch 'lan966x-ptp'
> git tree:       net-next
> console output: https://syzkaller.appspot.com/x/log.txt?x=15b941f0700000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=e029d3b2ccd4c91a
> dashboard link: https://syzkaller.appspot.com/bug?extid=5239d0e1778a500d477a
> compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=16f9a76c700000
> 
> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> Reported-by: syzbot+5239d0e1778a500d477a@...kaller.appspotmail.com

#syz test: git://git.kernel.org/pub/scm/linux/kernel/git/dborkman/bpf.git pr/neigh-probe