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+945220...@syzkaller.appspotmail.com



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[Dmitry Vyukov]

On Mon, Feb 4, 2019 at 9:13 AM syzbot
<syzbot+945220...@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+945220...@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

[Eric Biggers]

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Last occurred 126 days ago.

#syz invalid