Re: [syzbot] INFO: task hung in sisusb_open

From: Dmitry Vyukov
Date: Wed Oct 27 2021 - 02:27:41 EST


On Mon, 25 Oct 2021 at 16:40, 'Oliver Neukum' via syzkaller-bugs
<syzkaller-bugs@xxxxxxxxxxxxxxxx> wrote:
>
>
> On 22.10.21 17:10, syzbot wrote:
> > syzbot has found a reproducer for the following issue on:
> >
> > HEAD commit: 2f111a6fd5b5 Merge tag 'ceph-for-5.15-rc7' of git://github..
> > git tree: upstream
> > console output: https://syzkaller.appspot.com/x/log.txt?x=15a3aaf0b00000
> > kernel config: https://syzkaller.appspot.com/x/.config?x=61f4d9af07d3bbdf
> > dashboard link: https://syzkaller.appspot.com/bug?extid=fd9d03311cdce9a9ec36
> > compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
> > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=13d4e9fcb00000
> > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1444ada4b00000
>
> Hi,
>
> do I understand the reproducer correctly in that it just creates a
> device and then
> does nothing?

Hi Oliver,

Yes, it looks like it connects some device and executes some handshake
sequence and then does nothing beyond that.