linux-kernel - Re: [Security] Fwd: Oops (bad memory deref) in slab_alloc() due to filp

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Message-ID: <20110525145245.GA17600@mail.hallyn.com>
Date:	Wed, 25 May 2011 09:52:45 -0500
From:	Serge Hallyn <serge.hallyn@...onical.com>
To:	Robert Święcki <robert@...ecki.net>
Cc:	Eugene Teo <eugeneteo@...nel.sg>, linux-kernel@...r.kernel.org,
	security@...nel.org, kees@...ntu.com,
	Tavis Ormandy <taviso@...xchg8b.com>,
	David Howells <dhowells@...hat.com>
Subject: Re: [Security] Fwd: Oops (bad memory deref) in slab_alloc() due to
 filp_cachep holding incorrect values

Quoting Serge Hallyn (serge.hallyn@...onical.com):
> Fooi, it looks like all users of cred_alloc_blank() may need to be
> audited wrt commit 47a150edc2ae734c0f4bf50aa19499e23b9a46f8.

Fortunately there appear to be no other users.

David, is there any other place that a cred gets created and used
without it coming from copy_creds()?

thanks,
-serge
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