Re: [syzbot] INFO: task hung in hwrng_register

From: Dmitry Vyukov
Date: Mon Nov 15 2021 - 05:10:47 EST


On Fri, 12 Nov 2021 at 07:16, syzbot
<syzbot+fa0abe20d13faf06353d@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
>
> 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

Looks reasonable:

#syz fix: hwrng: virtio - don't wait on cleanup