linux-kernel - Re: Security issues with local filesystem caching

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Date:	Thu, 02 Nov 2006 11:29:24 -0500
From:	Karl MacMillan <kmacmillan@...talrootkit.com>
To:	Stephen Smalley <sds@...ho.nsa.gov>
Cc:	David Howells <dhowells@...hat.com>, jmorris@...ei.org,
	chrisw@...s-sol.org, selinux@...ho.nsa.gov,
	linux-kernel@...r.kernel.org, aviro@...hat.com
Subject: Re: Security issues with local filesystem caching

On Wed, 2006-11-01 at 12:45 -0500, Stephen Smalley wrote:
> On Wed, 2006-11-01 at 10:58 -0500, Karl MacMillan wrote:

<snip>


> > fssid seems like the wrong name, though it does match the DAC concept.
> > This is really more general impersonation of another domain by the
> > kernel and might have other uses.
> 
> NFS will want a fssid in order to have file access checks applied
> against the client process' SID if/when the client process' context
> becomes available.

I was suggesting that it might be helpful if this applied to all checks
- not just file access - and would therefore need a different name.

Karl

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