linux-kernel - Re: inconsistent lock state in icmp

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Message-ID: <CACT4Y+Zr6aEahp+jQhCoZCLQ4CY10oHUKB8yGfZxE+6WujeyNg@mail.gmail.com>
Date:   Wed, 11 Nov 2020 15:02:49 +0100
From:   Dmitry Vyukov <dvyukov@...gle.com>
To:     syzbot <syzbot+251ec6887ada6eac4921@...kaller.appspotmail.com>,
        LKML <linux-kernel@...r.kernel.org>,
        netdev <netdev@...r.kernel.org>,
        syzkaller-bugs <syzkaller-bugs@...glegroups.com>,
        tipc-discussion@...ts.sourceforge.net
Subject: Re: inconsistent lock state in icmp_send

On Mon, May 25, 2020 at 12:19 PM syzbot
<syzbot+251ec6887ada6eac4921@...kaller.appspotmail.com> wrote:
>
> syzbot suspects this bug was fixed by commit:
>
> commit 1378817486d6860f6a927f573491afe65287abf1
> Author: Eric Dumazet <edumazet@...gle.com>
> Date:   Thu May 21 18:29:58 2020 +0000
>
>     tipc: block BH before using dst_cache
>
> bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=10cbef06100000
> start commit:   f5d58277 Merge branch 'for-linus' of git://git.kernel.org/..
> git tree:       upstream
> kernel config:  https://syzkaller.appspot.com/x/.config?x=c8970c89a0efbb23
> dashboard link: https://syzkaller.appspot.com/bug?extid=251ec6887ada6eac4921
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=10ab6ba3400000
>
> If the result looks correct, please mark the bug fixed by replying with:
>
> #syz fix: tipc: block BH before using dst_cache
>
> For information about bisection process see: https://goo.gl/tpsmEJ#bisection

#syz fix: tipc: block BH before using dst_cache