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Date:   Thu, 12 Dec 2019 10:57:25 -0500 (EST)
From:   Vladis Dronov <vdronov@redhat.com>
To:     syzbot <syzbot+a950165cbb86bdd023a4@syzkaller.appspotmail.com>
Cc:     gregkh@linuxfoundation.org, gustavo@padovan.org,
        johan hedberg <johan.hedberg@gmail.com>, jslaby@suse.com,
        linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org,
        loic poulain <loic.poulain@intel.com>, marcel@holtmann.org,
        mhjungk@gmail.com, syzkaller-bugs@googlegroups.com,
        torvalds@linux-foundation.org
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Subject: Re: WARNING in tty_set_termios
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Thread-Topic: WARNING in tty_set_termios
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#syz fix: Bluetooth: hci_uart: check for missing tty operations

Best regards,
Vladis Dronov

----- Original Message -----
> From: "syzbot" <syzbot+a950165cbb86bdd023a4@syzkaller.appspotmail.com>
> To: gregkh@linuxfoundation.org, gustavo@padovan.org, "johan hedberg" <johan.hedberg@gmail.com>, jslaby@suse.com,
> linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org, "loic poulain" <loic.poulain@intel.com>,
> marcel@holtmann.org, mhjungk@gmail.com, syzkaller-bugs@googlegroups.com, torvalds@linux-foundation.org,
> vdronov@redhat.com
> Sent: Monday, December 9, 2019 7:20:01 AM
> Subject: Re: WARNING in tty_set_termios
> 
> syzbot suspects this bug was fixed by commit:
> 
> commit b36a1552d7319bbfd5cf7f08726c23c5c66d4f73
> Author: Vladis Dronov <vdronov@redhat.com>
> Date:   Tue Jul 30 09:33:45 2019 +0000
> 
>      Bluetooth: hci_uart: check for missing tty operations
> 
> bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=10b20aeae00000
> start commit:   66c56cfa Merge tag 'remove-dma_zalloc_coherent-5.0' of git..
> git tree:       upstream
> kernel config:  https://syzkaller.appspot.com/x/.config?x=b05cfdb4ee8ab9b2
> dashboard link: https://syzkaller.appspot.com/bug?extid=a950165cbb86bdd023a4
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=121cee07400000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=16fdaed8c00000
> 
> If the result looks correct, please mark the bug fixed by replying with:
> 
> #syz fix: Bluetooth: hci_uart: check for missing tty operations
> 
> For information about bisection process see: https://goo.gl/tpsmEJ#bisection
> 
>