netdev - Re: [PATCH] LSM: Add security_socket_post_accept() and security_socket_post_recv

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Date:	Tue, 21 Apr 2009 23:58:51 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	greg@...kko.com
Cc:	penguin-kernel@...ove.sakura.ne.jp, paul.moore@...com,
	linux-security-module@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH] LSM: Add security_socket_post_accept() and
 security_socket_post_recv_datagram().

From: Greg Lindahl <greg@...kko.com>
Date: Tue, 21 Apr 2009 23:54:43 -0700

> On Tue, Apr 21, 2009 at 11:46:18PM -0700, David Miller wrote:
> 
>> If overly anal apps "code for it" that is entirely besides the point.
>> What we have to be concerned for, from a kernel behavioral standpoint,
>> is that some apps "might not code for it".  This is why we don't
>> change behavior.
> 
> I am suggesting that you survey actual apps. If you find that they're
> all overly anal, then maybe you've learned something about EAGAIN
> already happening today. I assure you that the co-worker who stuck in
> the "ignore EAGAIN without logging it" only did so because he saw it
> fairly frequently. He's that way.

It's likely a bug and should have been reported.

Unexplainable behavior isn't something to ignore.

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