On Fri, 2023-01-13 at 13:40 +0800, lixiong liu wrote:

quoted

quoted

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!

  Do you have any suggestion for this issue?

  Best regards,
  Lixiong Liu
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