linux-kernel - Re: [syzbot] [mptcp?] WARNING in __mptcp_clean

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Message-ID: <b1c0717f-2eff-4e97-a84f-3f25a697e48d@redhat.com>
Date: Wed, 31 Jul 2024 11:59:13 +0200
From: Paolo Abeni <pabeni@...hat.com>
To: syzbot <syzbot+5b3e7c7a0b77f0c03b0d@...kaller.appspotmail.com>,
 cpaasch@...le.com, davem@...emloft.net, edumazet@...gle.com,
 geliang.tang@...ux.dev, geliang@...nel.org, kuba@...nel.org,
 linux-kernel@...r.kernel.org, martineau@...nel.org, matttbe@...nel.org,
 mptcp@...ts.linux.dev, netdev@...r.kernel.org,
 syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [mptcp?] WARNING in __mptcp_clean_una

On 7/31/24 04:00, syzbot wrote:
> syzbot suspects this issue was fixed by commit:
> 
> commit fb7a0d334894206ae35f023a82cad5a290fd7386
> Author: Paolo Abeni <pabeni@...hat.com>
> Date:   Mon Apr 29 18:00:31 2024 +0000
> 
>      mptcp: ensure snd_nxt is properly initialized on connect
> 
> bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=12c8bdbd980000
> start commit:   4f5e5092fdbf Merge tag 'net-6.8-rc5' of git://git.kernel.o..
> git tree:       upstream
> kernel config:  https://syzkaller.appspot.com/x/.config?x=1d7c92dd8d5c7a1e
> dashboard link: https://syzkaller.appspot.com/bug?extid=5b3e7c7a0b77f0c03b0d
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=14fc9c8a180000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=17d0cc1c180000
> 
> If the result looks correct, please mark the issue as fixed by replying with:
> 
> #syz fix: mptcp: ensure snd_nxt is properly initialized on connect
> 
> For information about bisection process see: https://goo.gl/tpsmEJ#bisection

#syz fix: mptcp: ensure snd_nxt is properly initialized on connect

oops, I forgot to do the required communication/accounting here, sorry!

Paolo