From: Christoph Hellwig <hch@infradead.org>
To: "Darrick J. Wong" <djwong@kernel.org>
Cc: linux-xfs@vger.kernel.org
Subject: Re: [PATCH 1/1] xfs: online repair of symbolic links
Date: Wed, 28 Feb 2024 09:26:00 -0800 [thread overview]
Message-ID: <Zd9sqALoZMOvHm8P@infradead.org> (raw)
In-Reply-To: <170900015273.939796.12650929826491519393.stgit@frogsfrogsfrogs>
On Mon, Feb 26, 2024 at 06:32:51PM -0800, Darrick J. Wong wrote:
> From: Darrick J. Wong <djwong@kernel.org>
>
> If a symbolic link target looks bad, try to sift through the rubble to
> find as much of the target buffer that we can, and stage a new target
> (short or remote format as needed) in a temporary file and use the
> atomic extent swapping mechanism to commit the results.
So this basically injects new link paths, which looks really dangerous
to me, as it creates odd attack vectors. I'd much prefer to not
"repair" the path, but mark the link bad so that any access but unlike
returns -EIO.
next prev parent reply other threads:[~2024-02-28 17:26 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-27 2:18 [PATCHSET v29.['hch@lst.de'] 11/13] xfs: online repair of symbolic links Darrick J. Wong
2024-02-27 2:23 ` Darrick J. Wong
2024-02-27 2:32 ` [PATCH 1/1] " Darrick J. Wong
2024-02-28 17:26 ` Christoph Hellwig [this message]
2024-02-28 18:37 ` Darrick J. Wong
2024-02-28 18:53 ` Christoph Hellwig
2024-02-28 20:52 ` Darrick J. Wong
2024-02-28 22:10 ` Christoph Hellwig
2024-02-28 23:46 ` Darrick J. Wong
2024-02-29 13:25 ` Christoph Hellwig
2024-02-29 17:16 ` Darrick J. Wong
2024-02-29 19:42 ` Christoph Hellwig
-- strict thread matches above, loose matches on Subject: below --
2024-03-27 1:49 [PATCHSET v30.1 12/15] " Darrick J. Wong
2024-03-27 2:05 ` [PATCH 1/1] " Darrick J. Wong
2024-03-27 16:53 ` Christoph Hellwig
2024-03-29 20:44 ` Darrick J. Wong
2024-03-29 20:58 ` Darrick J. Wong
2023-12-31 19:45 [PATCHSET v29.0 23/40] xfsprogs: " Darrick J. Wong
2023-12-31 22:35 ` [PATCH 1/1] xfs: " Darrick J. Wong
2023-12-31 19:31 [PATCHSET v29.0 24/28] " Darrick J. Wong
2023-12-31 20:39 ` [PATCH 1/1] " Darrick J. Wong
2023-05-26 0:36 [PATCHSET v25.0 0/1] " Darrick J. Wong
2023-05-26 1:36 ` [PATCH 1/1] " Darrick J. Wong
2022-12-30 22:14 [PATCHSET v24.0 0/1] " Darrick J. Wong
2022-12-30 22:14 ` [PATCH 1/1] " Darrick J. Wong
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