netdev - Re: [syzbot] unexpected kernel reboot (6)

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Date:   Mon, 28 Jun 2021 19:42:40 +0200
From:   Dmitry Vyukov <dvyukov@...gle.com>
To:     syzbot <syzbot+04cbcd264375a290f444@...kaller.appspotmail.com>
Cc:     linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        syzkaller-bugs@...glegroups.com,
        Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp>
Subject: Re: [syzbot] unexpected kernel reboot (6)

On Mon, Jun 28, 2021 at 7:40 PM syzbot
<syzbot+04cbcd264375a290f444@...kaller.appspotmail.com> wrote:
>
> Hello,
>
> syzbot found the following issue on:
>
> HEAD commit:    ff8744b5 Merge branch '100GbE' of git://git.kernel.org/pub..
> git tree:       net-next
> console output: https://syzkaller.appspot.com/x/log.txt?x=1722068c300000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=7cf9abab1592f017
> dashboard link: https://syzkaller.appspot.com/bug?extid=04cbcd264375a290f444
>
> Unfortunately, I don't have any reproducer for this issue yet.
>
> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> Reported-by: syzbot+04cbcd264375a290f444@...kaller.appspotmail.com

+Tetsuo

The reboot strikes again. The syzkaller revision already includes
sysfs filtering and there are no mentions of "sysfs" in the log.
Maybe something related to usb again. So far it happened only once, if
it does not happen too frequently then it's not a high priority.


> output_len: 0x000000000e83eb68
> kernel_total_size: 0x000000000fc26000
> needed_size: 0x000000000fe00000
> trampoline_32bit: 0x000000000009d000
> Decompressing Linux... Parsing ELF... done.
> Booting the kernel.
>
>
> ---
> This report is generated by a bot. It may contain errors.
> See https://goo.gl/tpsmEJ for more information about syzbot.
> syzbot engineers can be reached at syzkaller@...glegroups.com.
>
> syzbot will keep track of this issue. See:
> https://goo.gl/tpsmEJ#status for how to communicate with syzbot.