netdev - Re: [PATCH -next v2] unix stream: Fix use-after-free crashes

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Message-ID: <1316419052.2539.1.camel@edumazet-HP-Compaq-6005-Pro-SFF-PC>
Date:	Mon, 19 Sep 2011 09:57:31 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Tim Chen <tim.c.chen@...ux.intel.com>
Cc:	David Miller <davem@...emloft.net>, zheng.z.yan@...ux.intel.com,
	zheng.z.yan@...el.com, netdev@...r.kernel.org,
	sfr@...b.auug.org.au, jirislaby@...il.com, sedat.dilek@...il.com,
	alex.shi@...el.com
Subject: Re: [PATCH -next v2] unix stream: Fix use-after-free crashes

Le vendredi 16 septembre 2011 à 09:50 -0700, Tim Chen a écrit :
> On Fri, 2011-09-16 at 19:35 -0400, David Miller wrote:
> > From: Eric Dumazet <eric.dumazet@...il.com>
> > Date: Wed, 07 Sep 2011 04:55:26 +0200
> > 
> > > Please David just revert 0856a304091b33a8e
> > 
> > Done.
> 
> Eric,
> 
> Can you re-spin a patch that incorporates your idea that we don't
> add pid/credential references when we are not requesting credentials
> in the socket. And probably another one that remove unnecessary
> pid/credentials references in send/receive when we do use credentials?

Sure, I did it this morning, please review it if you have some time.

If we find a regression (some popular app doing write() and expecting
credential to be sent to receiver), we could test the SOCK_PASSCRED flag
on receiver socket.



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