Re: KASAN: use-after-free Read in __cpuhp_state_remove_instance

From: Jens Axboe
Date: Fri Feb 26 2021 - 17:07:28 EST


On 2/26/21 2:33 PM, syzbot wrote:
> syzbot has found a reproducer for the following issue on:
>
> HEAD commit: d01f2f7e Add linux-next specific files for 20210226
> git tree: linux-next
> console output: https://syzkaller.appspot.com/x/log.txt?x=114fa9ccd00000
> kernel config: https://syzkaller.appspot.com/x/.config?x=a1746d2802a82a05
> dashboard link: https://syzkaller.appspot.com/bug?extid=38769495e847cea2dcca
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1181e0dad00000
>
> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> Reported-by: syzbot+38769495e847cea2dcca@xxxxxxxxxxxxxxxxxxxxxxxxx

This one is already fixed in the current tree.

--
Jens Axboe