netdev - Re: [PATCH 5/5] net: Use netlink_ns_capable to verify the permisions of netlink messages

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Message-ID: <CA+55aFxybf=ya2RE5nzf10Km+JZ3=HqXGVCHYcteW2EVAUww+g@mail.gmail.com>
Date:	Fri, 23 May 2014 16:51:17 -0700
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	"Eric W. Biederman" <ebiederm@...ssion.com>
Cc:	Jiri Benc <jbenc@...hat.com>,
	Andy Lutomirski <luto@...capital.net>,
	David Miller <davem@...emloft.net>,
	"Jorge Boncompte [DTI2]" <jorge@...2.net>,
	Vivek Goyal <vgoyal@...hat.com>,
	Simo Sorce <ssorce@...hat.com>,
	"security@...nel.org" <security@...nel.org>,
	Network Development <netdev@...r.kernel.org>,
	"Serge E. Hallyn" <serge@...lyn.com>
Subject: Re: [PATCH 5/5] net: Use netlink_ns_capable to verify the permisions
 of netlink messages

On Fri, May 23, 2014 at 4:25 PM, Eric W. Biederman
<ebiederm@...ssion.com> wrote:
>
> I have not seen consensus that what Zebra is doing makes sense to
> support.

Eric, stop right there.

There is no "sensible to support". There is only "reality".

The thing that makes "reality" be "reality" is that it exists whether
you like it or not, or whether you believe in it or not.

We don't break applications. Whether you like them or not is
completely immaterial.

                Linus
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