"Serge E. Hallyn" <serue@xxxxxxxxxx> writes:
> Quoting sukadev@xxxxxxxxxx (sukadev@xxxxxxxxxx):
>> Oleg Nesterov [oleg@xxxxxxxxxx] wrote:
>> | On 12/05, Eric W. Biederman wrote:
>> | >
>> | > +pid_t pid_vnr(struct pid *pid)
>> | > +{
>> | > + return pid_nr_ns(pid, current->nsproxy->pid_ns);
>> | > +}
>>
>> Hmm. current->nsproxy be NULL during process exit ?
>> So this safe as long as pid_vnr() is not called after a
>> process exits its namespaces. Probably no such callers atm.
>
> Yes I did a little audit for those this morning bc I frankly didn't
> believe there weren't any. But I couldn't find any :)
Cool. The only case pid_vnr would make sense in that context is if
we were talking to user space after we had exited our namespaces.
Which is at least as stretch.
Eric
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