netdev - Re: about phonet pipe controller

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Message-ID: <1435035.dDgLtNNFnF@leon.remlab.net>
Date:	Wed, 12 Oct 2011 14:08:52 +0300
From:	Rémi Denis-Courmont 
	<remi.denis-courmont@...ia.com>
To:	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: about phonet pipe controller

Le Mercredi 12 Octobre 2011 12:58:08 ext Hemant-vilas RAMDASI a écrit :
> Yes, I agree that build-time option is not required..But what are those
> corner cases?

This is old stuff. I don't remember the details, nor did I investigate the 
whole thing. But the code seemed to assume that userspace are fully trusted, 
the remote Phonet nodes also. That does not work.

Protocol-level race conditions, API level race conditions, crashed remote 
peers, crashing user space processes, invalid API use, etc. All that needs to 
be dealt with safely. This is kernel code!

-- 
Rémi Denis-Courmont
http://www.remlab.net/

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