Re: WARNING in snd_usbmidi_submit_urb/usb_submit_urb

Greg KH
2020-06-03T06:12:55Z

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@google.com>
> 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 :)