[syzbot] unexpected kernel reboot (6)

[syzbot] unexpected kernel reboot (6)

[syzbot]

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@syzkaller.appspotmail.com

output_len: 0x000000000e83eb68
kernel_total_size: 0x000000000fc26000
needed_size: 0x000000000fe00000
trampoline_32bit: 0x000000000009d000
Decompressing Linux... Parsing ELF... done.
Booting the kernel.


---
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See https://goo.gl/tpsmEJ for more information about syzbot.
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Re: [syzbot] unexpected kernel reboot (6)

[Dmitry Vyukov]

On Mon, Jun 28, 2021 at 7:40 PM syzbot
<syzbot+04cbcd264375a290f444@syzkaller.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@syzkaller.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@googlegroups.com.
>
> syzbot will keep track of this issue. See:
> https://goo.gl/tpsmEJ#status for how to communicate with syzbot.