Re: [REVIEW][PATCH 3/3] vfs: Fix a regression in mounting proc

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On 11/27, Eric W. Biederman wrote:
>
> ebiederm@xxxxxxxxxxxx (Eric W. Biederman) writes:
>
> > Oleg Nesterov <oleg@xxxxxxxxxx> writes:
> >>
> >> Lets ignore the implementation details. Suppose that proc was never
> >> mounted. Then "mount -t proc" should fail after CLONE_NEWUSER | NEWNS?
> >
> > Yes.
>
> Well strictly speaking it should fail after CLONE_NEWUSER | NEWNS | NEWPID.

Yes, yes, I understand, the mounter should be CAP_SYS_ADMIN in
task_active_pid_ns().

> Has this cleared up the confusion?

Yes. Thanks.

Oleg.

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