From: Christoph Hellwig <hch@infradead.org>
To: "Darrick J. Wong" <djwong@kernel.org>
Cc: Christoph Hellwig <hch@infradead.org>, linux-xfs@vger.kernel.org
Subject: Re: [PATCH 1/4] xfs: hide private inodes from bulkstat and handle functions
Date: Wed, 28 Feb 2024 09:39:47 -0800 [thread overview]
Message-ID: <Zd9v41rTlllf424I@infradead.org> (raw)
In-Reply-To: <20240228173325.GI1927156@frogsfrogsfrogs>
On Wed, Feb 28, 2024 at 09:33:25AM -0800, Darrick J. Wong wrote:
> "We're about to start adding functionality that uses internal inodes
> that are private to XFS. What this means is that userspace should never
> be able to access any information about these files, and should not be
> able to open these files by handle.
>
> "To prevent userspace from ever finding the file, or mis-interactions
> with the security apparatus, set S_PRIVATE on the inode. Don't allow
> bulkstat, open-by-handle, or linking of S_PRIVATE files into the
> directory tree. This should keep private inodes actually private."
Sounds good.
next prev parent reply other threads:[~2024-02-28 17:39 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-27 2:18 [PATCHSET v29.4 04/13] xfs: create temporary files for online repair Darrick J. Wong
2024-02-27 2:24 ` [PATCH 1/4] xfs: hide private inodes from bulkstat and handle functions Darrick J. Wong
2024-02-27 18:15 ` Christoph Hellwig
2024-02-28 16:52 ` Darrick J. Wong
2024-02-28 17:02 ` Christoph Hellwig
2024-02-28 17:33 ` Darrick J. Wong
2024-02-28 17:39 ` Christoph Hellwig [this message]
2024-02-27 2:25 ` [PATCH 2/4] xfs: create temporary files and directories for online repair Darrick J. Wong
2024-02-27 18:16 ` Christoph Hellwig
2024-02-27 2:25 ` [PATCH 3/4] xfs: refactor live buffer invalidation for repairs Darrick J. Wong
2024-02-27 18:16 ` Christoph Hellwig
2024-02-27 2:25 ` [PATCH 4/4] xfs: add the ability to reap entire inode forks Darrick J. Wong
2024-02-27 18:16 ` Christoph Hellwig
-- strict thread matches above, loose matches on Subject: below --
2024-04-15 23:34 [PATCHSET v30.3 04/16] xfs: create temporary files for online repair Darrick J. Wong
2024-04-15 23:44 ` [PATCH 1/4] xfs: hide private inodes from bulkstat and handle functions Darrick J. Wong
2024-03-27 1:47 [PATCHSET v30.1 05/15] xfs: create temporary files for online repair Darrick J. Wong
2024-03-27 1:57 ` [PATCH 1/4] xfs: hide private inodes from bulkstat and handle functions Darrick J. Wong
2024-03-27 11:12 ` Christoph Hellwig
2023-12-31 19:29 [PATCHSET v29.0 17/28] xfs: create temporary files for online repair Darrick J. Wong
2023-12-31 20:31 ` [PATCH 1/4] xfs: hide private inodes from bulkstat and handle functions Darrick J. Wong
2023-05-26 0:34 [PATCHSET v25.0 0/4] xfs: create temporary files for online repair Darrick J. Wong
2023-05-26 1:28 ` [PATCH 1/4] xfs: hide private inodes from bulkstat and handle functions Darrick J. Wong
2022-12-30 22:14 [PATCHSET v24.0 0/4] xfs: create temporary files for online repair Darrick J. Wong
2022-12-30 22:14 ` [PATCH 1/4] xfs: hide private inodes from bulkstat and handle functions Darrick J. Wong
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