Quoting Aditya Kali (adityakali@xxxxxxxxxx):
> >> +void free_cgroup_ns(struct cgroup_namespace *ns)
> >> +{
> >> + cgroup_put(ns->root_cgrp);
> >> + put_user_ns(ns->user_ns);
> >
> > This is a problem on error patch in copy_cgroup_ns. The
> > alloc_cgroup_ns() doesn't initialize these values, so if
> > you should fail in proc_alloc_inum() you'll show up here
> > with fandom values in ns->*.
> >
>
> I don't see the codepath that leads to calling free_cgroup_ns() with
> uninitialized members. We don't call free_cgroup_ns() on the error
> path in copy_cgroup_ns().
Hm, yeah, I'm not seeing it now, sorry.
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