From: Christoph Hellwig <hch@infradead.org>
To: Mark Tinguely <tinguely@sgi.com>
Cc: Greg Banks <gbanks@sgi.com>, xfs@oss.sgi.com
Subject: Re: [PATCH] xfs: change the immutable in xfs_open_by_handle
Date: Wed, 11 Sep 2013 06:55:02 -0700 [thread overview]
Message-ID: <20130911135502.GA21898@infradead.org> (raw)
In-Reply-To: <20130910184724.726933044@sgi.com>
On Tue, Sep 10, 2013 at 01:47:20PM -0500, Mark Tinguely wrote:
> This patch allows clients like DMF to modify an immutable file
> without changing the immutable capability on the file, which
> would expose the file to change.
>
> This patch is restricted to holders of the CAP_LINUX_IMMUTABLE,
> so no addition security risk has been introduced.
The immutable flag means that the file can't be modified, and
CAP_LINUX_IMMUTABLE allows setting/removing that restriction, but not
ignoring it.
So: NAK, this is a change in semantics and long-standing behaviour.
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next prev parent reply other threads:[~2013-09-11 13:55 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-10 18:47 [PATCH] xfs: change the immutable in xfs_open_by_handle Mark Tinguely
2013-09-10 21:20 ` Dave Chinner
2013-09-10 22:29 ` Mark Tinguely
2013-09-11 13:55 ` Christoph Hellwig [this message]
2013-09-11 14:22 ` Mark Tinguely
2013-09-11 15:50 ` Matthias Schniedermeyer
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