On Fri, 1 Jul 2022 at 21:21, syzbot syzbot+39e3268af9968f153591@syzkaller.appspotmail.com wrote:

syzbot suspects this issue was fixed by commit:

commit 0125de38122f0f66bf61336158d12a1aabfe6425 Author: Takashi Iwai tiwai@suse.de Date: Wed May 25 13:12:03 2022 +0000

ALSA: usb-audio: Cancel pending work at closing a MIDI substream

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1180b25c080000 start commit: 2a5699b0de4e Merge tag 'leds-5.19-rc1' of git://git.kernel.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=f915857c44e13980 dashboard link: https://syzkaller.appspot.com/bug?extid=39e3268af9968f153591 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=119d1fcbf00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17716bedf00000

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

#syz fix: ALSA: usb-audio: Cancel pending work at closing a MIDI substream

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

Looks reasonable:

#syz fix: ALSA: usb-audio: Cancel pending work at closing a MIDI substream