syzbot suspects this issue was fixed by commit:
commit 2bb31abdbe55742c89f4dc0cc26fcbc8467364f6
Author: Laurent Vivier <lvivier@xxxxxxxxxx>
Date: Thu Oct 28 10:11:09 2021 +0000
hwrng: virtio - don't wait on cleanup
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=11d4141ab00000
start commit: f8e6dfc64f61 Merge tag 'net-5.14-rc6' of git://git.kernel...
git tree: upstream
kernel config: https://syzkaller.appspot.com/x/.config?x=171d57d5a48c8cad
dashboard link: https://syzkaller.appspot.com/bug?extid=fa0abe20d13faf06353d
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16cfe231300000
If the result looks correct, please mark the issue as fixed by replying with:
#syz fix: hwrng: virtio - don't wait on cleanup
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
