linux-kernel - Re: [PATCH] Fix user.* xattr permission check for sticky dirs

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Message-Id: <1162487655.18730.2.camel@kleikamp.austin.ibm.com>
Date:	Thu, 02 Nov 2006 11:14:15 -0600
From:	Dave Kleikamp <shaggy@...tin.ibm.com>
To:	Jan Engelhardt <jengelh@...ux01.gwdg.de>
Cc:	Andreas Gruenbacher <agruen@...e.de>,
	Andrew Morton <akpm@...l.org>, linux-kernel@...r.kernel.org,
	Gerard Neil <xyzzy@...ferret.org>,
	Linus Torvalds <torvalds@...l.org>
Subject: Re: [PATCH] Fix user.* xattr permission check for sticky dirs

On Thu, 2006-11-02 at 17:59 +0100, Jan Engelhardt wrote:
> >
> >The user.* extended attributes are only allowed on regular files and
> >directories. Sticky directories further restrict write access to the
> >owner and privileged users. (See the attr(5) man page for an
> >explanation.)
> >
> 
> Does this effect ACL handling for sticky dirs in any way?

No.  xattr_permission (which this patch hits) always returns 0 for
system.* attributes and leaves it to the file system to handle.

Shaggy
-- 
David Kleikamp
IBM Linux Technology Center


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