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From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH v7 0/4] Support administratively closing application
 sockets
Date: Wed, 16 Dec 2015 19:15:59 -0500 (EST)
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From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Wed, 16 Dec 2015 15:35:35 -0800

> socket can be shared by fd passing to multiple users.
> 
> Who really owns it ?

Oh yes the old fd permission discussion...

Probably need to use the openner's permissions.