linux-next boot error: can't ssh into the instance (2)

linux-next boot error: can't ssh into the instance (2)

[syzbot]

Hello,

syzbot found the following crash on:

HEAD commit:    66d54fa79f95 Add linux-next specific files for 20190204
git tree:       linux-next
console output: https://syzkaller.appspot.com/x/log.txt?x=17823b28c00000
kernel config:  https://syzkaller.appspot.com/x/.config?x=f0f6544db42451b4
dashboard link: https://syzkaller.appspot.com/bug?extid=94522064b07f06df116d
compiler:       gcc (GCC) 9.0.0 20181231 (experimental)

Unfortunately, I don't have any reproducer for this crash yet.

IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+94522064b07f06df116d@syzkaller.appspotmail.com



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Re: linux-next boot error: can't ssh into the instance (2)

[Dmitry Vyukov]

On Mon, Feb 4, 2019 at 9:13 AM syzbot
<syzbot+94522064b07f06df116d@syzkaller.appspotmail.com> wrote:
>
> Hello,
>
> syzbot found the following crash on:
>
> HEAD commit:    66d54fa79f95 Add linux-next specific files for 20190204
> git tree:       linux-next
> console output: https://syzkaller.appspot.com/x/log.txt?x=17823b28c00000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=f0f6544db42451b4
> dashboard link: https://syzkaller.appspot.com/bug?extid=94522064b07f06df116d
> compiler:       gcc (GCC) 9.0.0 20181231 (experimental)
>
> Unfortunately, I don't have any reproducer for this crash yet.
>
> IMPORTANT: if you fix the bug, please add the following tag to the commit:
> Reported-by: syzbot+94522064b07f06df116d@syzkaller.appspotmail.com

[    6.272518][    T1] BUG: KASAN: global-out-of-bounds in
fs_validate_description+0x109/0x6e9

Probably introduced by:

commit 82685adaccb3e756d04161ebfc9d188b57def10c
Author: David Howells
Date:   Thu Nov 1 23:07:24 2018 +0000

    vfs: Add configuration parser helpers



> ---
> This bug 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 bug report. See:
> https://goo.gl/tpsmEJ#bug-status-tracking for how to communicate with
> syzbot.