linux-kernel - Re: WARNING in snd_usbmidi_submit_urb/usb_submit

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Date:   Mon, 01 Jun 2020 00:24:03 -0700
From:   syzbot <syzbot+5f1d24c49c1d2c427497@...kaller.appspotmail.com>
To:     andreyknvl@...gle.com, balbi@...nel.org,
        gregkh@...uxfoundation.org, ingrassia@...genesys.com,
        linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org,
        syzkaller-bugs@...glegroups.com
Subject: Re: WARNING in snd_usbmidi_submit_urb/usb_submit_urb

syzbot has bisected this bug to:

commit f2c2e717642c66f7fe7e5dd69b2e8ff5849f4d10
Author: Andrey Konovalov <andreyknvl@...gle.com>
Date:   Mon Feb 24 16:13:03 2020 +0000

    usb: gadget: add raw-gadget interface

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=164afcf2100000
start commit:   bdc48fa1 checkpatch/coding-style: deprecate 80-column warn..
git tree:       upstream
final crash:    https://syzkaller.appspot.com/x/report.txt?x=154afcf2100000
console output: https://syzkaller.appspot.com/x/log.txt?x=114afcf2100000
kernel config:  https://syzkaller.appspot.com/x/.config?x=129ea1e5950835e5
dashboard link: https://syzkaller.appspot.com/bug?extid=5f1d24c49c1d2c427497
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=12d70cf2100000

Reported-by: syzbot+5f1d24c49c1d2c427497@...kaller.appspotmail.com
Fixes: f2c2e717642c ("usb: gadget: add raw-gadget interface")

For information about bisection process see: https://goo.gl/tpsmEJ#bisection