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From:   Dmitry Vyukov <dvyukov@google.com>
Date:   Mon, 20 Dec 2021 07:53:45 +0100
Message-ID: <CACT4Y+aPM1nYBMi7QWswWCzPb1a9tb1BA3cznXuDo=sFB2hPsg@mail.gmail.com>
Subject: Re: [syzbot] INFO: task hung in disconnect_work
To:     syzbot <syzbot+060f9ce2b428f88a288f@syzkaller.appspotmail.com>
Cc:     davem@davemloft.net, johannes.berg@intel.com,
        johannes@sipsolutions.net, kuba@kernel.org,
        linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org,
        netdev@vger.kernel.org, phind.uet@gmail.com,
        syzkaller-bugs@googlegroups.com
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On Sat, 18 Dec 2021 at 09:46, syzbot
<syzbot+060f9ce2b428f88a288f@syzkaller.appspotmail.com> wrote:
>
> syzbot suspects this issue was fixed by commit:
>
> commit 563fbefed46ae4c1f70cffb8eb54c02df480b2c2
> Author: Nguyen Dinh Phi <phind.uet@gmail.com>
> Date:   Wed Oct 27 17:37:22 2021 +0000
>
>     cfg80211: call cfg80211_stop_ap when switch from P2P_GO type
>
> bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=13ad179db00000
> start commit:   f40ddce88593 Linux 5.11
> git tree:       upstream
> kernel config:  https://syzkaller.appspot.com/x/.config?x=51ab7ccaffffc30c
> dashboard link: https://syzkaller.appspot.com/bug?extid=060f9ce2b428f88a288f
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1217953cd00000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=13baa822d00000
>
> If the result looks correct, please mark the issue as fixed by replying with:
>
> #syz fix: cfg80211: call cfg80211_stop_ap when switch from P2P_GO type
>
> For information about bisection process see: https://goo.gl/tpsmEJ#bisection

Looks reasonable:

#syz fix: cfg80211: call cfg80211_stop_ap when switch from P2P_GO type