Re: [PATCH stable 4.19,4.20,5.0] bpf: do not restore dst_reg when cur_state is freed

[Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx>]

On Sat, Mar 30, 2019 at 12:02:27AM +0100, Daniel Borkmann wrote:
> From: Xu Yu <xuyu@xxxxxxxxxxxxxxxxx>
> 
> [ upstream commit 0803278b0b4d8eeb2b461fb698785df65a725d9e ]
> 
> Syzkaller hit 'KASAN: use-after-free Write in sanitize_ptr_alu' bug.

Thanks for the backport, now queued up.

greg k-h