> > Root cause:
> > cgroup_migrate_finish free cset’s cgroup,
> >
> > but cgroup_sk_alloc use the freed cgroup,
> >
> > then use-after-free happened.
>
> Sounds similar to the problem fixed by 07fd5b6cdf3c ("cgroup: Use
> separate
> src/dst nodes when preloading css_sets for migration"). Can you try
> it out?
>
> Thanks.
>
Thanks for your quick feedback.
But we encountered use-after-free version
already contains this patch.
So, with this patch will also encounter
this use-after-free.
Thanks!
Best regards,
Lixiong Liu
