Re: upstream boot error: KASAN: slab-out-of-bounds Write in hpet_alloc

From: Greg KH
Date: Thu Jan 30 2020 - 05:14:38 EST


On Thu, Jan 30, 2020 at 02:07:11AM -0800, syzbot wrote:
> Hello,
>
> syzbot found the following crash on:
>
> HEAD commit: 39bed42d Merge tag 'for-linus-hmm' of git://git.kernel.org..
> git tree: upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=1569d9a5e00000
> kernel config: https://syzkaller.appspot.com/x/.config?x=2646535f8818ae25
> dashboard link: https://syzkaller.appspot.com/bug?extid=2b149e3a2468e54d2178
> 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+2b149e3a2468e54d2178@xxxxxxxxxxxxxxxxxxxxxxxxx

Fix is already in my tree and will show up in the next linux-next.

thanks,

greg k-h