Re: WARNING in snd_usbmidi_submit_urb/usb_submit_urb

[Andrey Konovalov]

On Wed, Jun 3, 2020 at 8:12 AM Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> wrote:
>
> On Tue, Jun 02, 2020 at 10:41:16PM -0700, syzbot wrote:
> > syzbot has found a reproducer for the following crash on:
> >
> > HEAD commit:    1ee08de1 Merge tag 'for-5.8/io_uring-2020-06-01' of git://..
> > git tree:       upstream
> > console output: https://syzkaller.appspot.com/x/log.txt?x=15f9e516100000
> > kernel config:  https://syzkaller.appspot.com/x/.config?x=b46ebd806238a886
> > dashboard link: https://syzkaller.appspot.com/bug?extid=5f1d24c49c1d2c427497
> > compiler:       gcc (GCC) 9.0.0 20181231 (experimental)
> > userspace arch: i386
> > syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1667dcca100000
> > C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=13f9e516100000
> >
> > The bug was bisected to:
> >
> > commit f2c2e717642c66f7fe7e5dd69b2e8ff5849f4d10
> > Author: Andrey Konovalov <andreyknvl@xxxxxxxxxx>
> > Date:   Mon Feb 24 16:13:03 2020 +0000
> >
> >     usb: gadget: add raw-gadget interface
>
> I thought this "bisect to the tool that finds bugs" issue was fixed :)

The change was merged after this message was sent, and it also takes
some time to be deployed.