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From: Chris Wright <chrisw@osdl.org>
To: Fabian Frederick <Fabian.Frederick@skynet.be>
Cc: Andrew Morton <akpm@osdl.org>,
	linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 2.6.5-mm4] sys_access race fix
Date: Tue, 13 Apr 2004 11:50:52 -0700	[thread overview]
Message-ID: <20040413115052.O22989@build.pdx.osdl.net> (raw)
In-Reply-To: <1081881778.5585.16.camel@bluerhyme.real3>; from Fabian.Frederick@skynet.be on Tue, Apr 13, 2004 at 08:43:01PM +0200

* Fabian Frederick (Fabian.Frederick@skynet.be) wrote:
> Andrew,
> 
> 	I'm trying to remove the race in sys_access code.
> AFAICS, fsuid is checked in "permission" level so I pushed real fsuid
> capture forward.At that state, I can task_lock (which was impossible
> before user_walk).Could you tell me if I can improve this one ?

This changes the semantics of the directory checks implicit
during the pathname resolution.

thanks,
-chris
-- 
Linux Security Modules     http://lsm.immunix.org     http://lsm.bkbits.net

  reply	other threads:[~2004-04-13 18:50 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-04-13 18:43 Fabian Frederick
2004-04-13 18:50 ` Chris Wright [this message]
2004-04-13 19:12   ` Fabian Frederick
2004-04-13 23:11     ` Chris Wright
2004-04-14  0:03 ` Andrew Morton
2004-04-14  0:16   ` Chris Wright
2004-04-14  7:11   ` Jamie Lokier
2004-04-14  7:22     ` viro
2004-04-14  7:26       ` Jamie Lokier
2004-04-14  9:20 fabian.frederick

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