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=171ad129b00000
start commit: 3dbdb38e2869 Merge branch 'for-5.14' of git://git.kernel.o..
git tree: upstream
kernel config: https://syzkaller.appspot.com/x/.config?x=1700b0b2b41cd52c
dashboard link: https://syzkaller.appspot.com/bug?extid=681da20be7291be15dca
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15a472e4300000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=15c51a28300000
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
