Re: [RFC][PATCH 0/3] fork: Add the ability to create tasks with givenpids

From: Pavel Emelyanov
Date: Wed Nov 23 2011 - 13:20:04 EST


On 11/23/2011 08:24 PM, Tejun Heo wrote:
> Hello,
>
> On Wed, Nov 23, 2011 at 04:20:44PM +0000, Pedro Alves wrote:
>>> Would CAP_CHECKPOINT be a shame too?
>>
>> I think CAP_CHECKPOINT (or something through some LSM) would be
>> definitely better.
>>
>>> I'm reluctant about priviledge
>>> through fd inheritance mostly because of its unusualness. I don't
>>> think priv management is a good problem space for small creative
>>> solutions. We're much better off with mundane mechanisms which people
>>> are already familiar with and is easy to account for.
>>
>> fd inheritance wouldn't work for gdb; a user spawned gdb
>> wouldn't inherit an open fd to kernel.ns_last_pid from anywhere.
>
> I see. So, let's do it for root for now and later add finer grained
> CAP as necessary/viable. Pavel, what do you think?

OK, I'll send the respective patches soon.

> Thanks.
>

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