Re: BUG: stack guard page was hit in fixup_exception

[Andy Lutomirski]

On Sat, Jul 11, 2020 at 12:10 AM syzbot
<syzbot+3370f8260246b965fefd@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
>
> Hello,
>
> syzbot found the following crash on:
>
> HEAD commit:    42f82040 Merge tag 'drm-fixes-2020-07-10' of git://anongit..
> git tree:       upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=12d80333100000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=66ad203c2bb6d8b
> dashboard link: https://syzkaller.appspot.com/bug?extid=3370f8260246b965fefd
> compiler:       gcc (GCC) 10.1.0-syz 20200507
>
> 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+3370f8260246b965fefd@xxxxxxxxxxxxxxxxxxxxxxxxx
>

> Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <00> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

I bet this is the same fbcon bug.