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SubjectRe: cgroup user-after-free
Date
> > 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
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