linux-kernel - Re: [PATCH 1/1] ptrace: do_notify_parent_cldstop: fix the wrong ->nsproxy usage

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Date:	Wed, 27 May 2009 23:32:22 +0200
From:	Oleg Nesterov <oleg@...hat.com>
To:	Roland McGrath <roland@...hat.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Christoph Hellwig <hch@...radead.org>,
	Ingo Molnar <mingo@...e.hu>,
	Pavel Emelyanov <xemul@...nvz.org>,
	Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/1] ptrace: do_notify_parent_cldstop: fix the wrong
	->nsproxy usage

On 05/26, Roland McGrath wrote:
>
> Acked-by: Roland McGrath <roland@...hat.com>

I didn't remove this ack to remind Andrew about this patch ;)

> ptrace_notify, ptrace_signal,

Actually, ptrace_signal() is fine wrt pid_ns. task_pid_vnr(current->parent)
returns 0 if the tracer is not seen from the tracee's namespace, this is
correct. So, afaics only ptrace_notify() needs the (low priority) fix.

Oleg.

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