linux-kernel - Re: WARNING in cm109_submit_buzz_toggle/usb_submit

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Date:   Wed, 13 Jan 2021 15:01:11 -0800
From:   syzbot <syzbot+c7e665956b189738fe5e@...kaller.appspotmail.com>
To:     eli.billauer@...il.com, gregkh@...uxfoundation.org,
        gustavoars@...nel.org, ingrassia@...genesys.com,
        linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org,
        oneukum@...e.com, stern@...land.harvard.edu,
        syzkaller-bugs@...glegroups.com, tiwai@...e.de
Subject: Re: WARNING in cm109_submit_buzz_toggle/usb_submit_urb

syzbot suspects this issue was fixed by commit:

commit c318840fb2a42ce25febc95c4c19357acf1ae5ca
Author: Alan Stern <stern@...land.harvard.edu>
Date:   Wed Dec 30 16:20:44 2020 +0000

    USB: Gadget: dummy-hcd: Fix shift-out-of-bounds bug

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1075dcaf500000
start commit:   fa02fcd9 Merge tag 'media/v5.10-2' of git://git.kernel.org..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=cb8d1a3819ba4356
dashboard link: https://syzkaller.appspot.com/bug?extid=c7e665956b189738fe5e
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=14ba912d500000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=10dfad85500000

If the result looks correct, please mark the issue as fixed by replying with:

#syz fix: USB: Gadget: dummy-hcd: Fix shift-out-of-bounds bug

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