linux-kernel - Re: [PATCH 1/9] Unionfs: security convert lsm into a static interface fix

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Date:	Mon, 22 Oct 2007 09:22:31 +0100
From:	Christoph Hellwig <hch@...radead.org>
To:	Erez Zadok <ezk@...sunysb.edu>
Cc:	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
	linux-fsdevel@...r.kernel.org, viro@....linux.org.uk,
	hch@...radead.org, "Serge E. Hallyn" <serue@...ibm.com>,
	Arjan van de Ven <arjan@...radead.org>,
	Chris Wright <chrisw@...s-sol.org>,
	James Morris <jmorris@...ei.org>,
	Stephen Smalley <sds@...ho.nsa.gov>,
	Josef 'Jeff' Sipek <jsipek@...sunysb.edu>
Subject: Re: [PATCH 1/9] Unionfs: security convert lsm into a static interface fix

On Sun, Oct 21, 2007 at 07:51:14PM -0400, Erez Zadok wrote:
> From: Andrew Morton <akpm@...ux-foundation.org>
> 
> ERROR: "security_inode_permission" [fs/unionfs/unionfs.ko] undefined!
> ERROR: "security_file_ioctl" [fs/unionfs/unionfs.ko] undefined!
> 
> Need these back.

These should never used by modules.  You'll need to use and/or introduce
vfs_ helpers that do proper security checks before calling the methods.

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