From: Eric Sandeen <sandeen@redhat.com>
To: Christoph Anton Mitterer <fo@fo>,
Chris Murphy <lists@colorremedies.com>, "S.J." <sorry@anonym.com>
Cc: Btrfs BTRFS <linux-btrfs@vger.kernel.org>
Subject: Re: attacking btrfs filesystems via UUID collisions?
Date: Fri, 11 Dec 2015 17:14:49 -0600 [thread overview]
Message-ID: <566B58E9.7030101@redhat.com> (raw)
In-Reply-To: <1449872498.31388.74.camel@fo>
On 12/11/15 4:21 PM, Christoph Anton Mitterer wrote:
>> Note that Btrfs is
>> > not unique, XFS v5 does a very similar thing with volume UUID as
>> > well,
>> > and resulted in this change:
>> > http://oss.sgi.com/pipermail/xfs/2015-April/041267.html
> Do you mean that xfs may suffer from the same issues that we're talking
> about here? If so, one should probably give them a notice.
That was disabled temporarily because changing the fs UUID meant that
every piece of checksummed metadata with an embedded UUID would then
mismatch.
It was fixed (re-allowed) with
ce748ea xfs: create new metadata UUID field and incompat flag
in the kernel and
9c4e12f xfsprogs: Add new sb_meta_uuid field, update userspace tools to manipulate it
in xfsprogs.
-Eric
next prev parent reply other threads:[~2015-12-11 23:14 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-04 12:05 Subvolume UUID, data corruption? S.J
2015-12-04 13:07 ` Hugo Mills
2015-12-05 3:28 ` Christoph Anton Mitterer
2015-12-05 5:52 ` attacking btrfs filesystems via UUID collisions? (was: Subvolume UUID, data corruption?) Christoph Anton Mitterer
2015-12-05 12:01 ` Subvolume UUID, data corruption? Hugo Mills
2015-12-06 1:51 ` attacking btrfs filesystems via UUID collisions? (was: Subvolume UUID, data corruption?) Christoph Anton Mitterer
2015-12-11 12:33 ` Subvolume UUID, data corruption? Austin S. Hemmelgarn
2015-12-05 13:19 ` Duncan
2015-12-06 1:51 ` attacking btrfs filesystems via UUID collisions? (was: Subvolume UUID, data corruption?) Christoph Anton Mitterer
2015-12-06 4:06 ` Duncan
2015-12-09 5:07 ` Christoph Anton Mitterer
2015-12-09 11:54 ` Duncan
2015-12-06 14:34 ` attacking btrfs filesystems via UUID collisions? Qu Wenruo
2015-12-06 20:55 ` Chris Murphy
2015-12-09 5:39 ` Christoph Anton Mitterer
2015-12-09 21:48 ` S.J.
2015-12-10 12:08 ` Austin S Hemmelgarn
2015-12-10 12:41 ` Hugo Mills
2015-12-10 12:57 ` S.J.
2015-12-10 19:42 ` Chris Murphy
2015-12-11 22:21 ` Christoph Anton Mitterer
2015-12-11 22:32 ` Christoph Anton Mitterer
2015-12-11 23:06 ` Chris Murphy
2015-12-12 1:34 ` S.J.
2015-12-14 0:28 ` Christoph Anton Mitterer
2015-12-14 0:27 ` Christoph Anton Mitterer
2015-12-14 13:23 ` Austin S. Hemmelgarn
2015-12-14 21:26 ` Chris Murphy
2015-12-15 0:35 ` Christoph Anton Mitterer
2015-12-15 13:54 ` Austin S. Hemmelgarn
2015-12-15 14:18 ` Hugo Mills
2015-12-15 14:27 ` Austin S. Hemmelgarn
2015-12-15 14:42 ` Hugo Mills
2015-12-15 16:03 ` Austin S. Hemmelgarn
2015-12-16 12:14 ` Christoph Anton Mitterer
2015-12-16 12:10 ` Christoph Anton Mitterer
2015-12-16 12:03 ` Christoph Anton Mitterer
2015-12-16 14:41 ` Chris Mason
2015-12-16 15:04 ` Christoph Anton Mitterer
2015-12-17 3:25 ` Duncan
2015-12-18 0:56 ` Christoph Anton Mitterer
2015-12-22 2:13 ` Kai Krakow
2015-12-16 12:03 ` Christoph Anton Mitterer
2015-12-17 2:43 ` Duncan
2015-12-15 0:08 ` Christoph Anton Mitterer
2015-12-15 14:19 ` Austin S. Hemmelgarn
2015-12-16 12:56 ` Christoph Anton Mitterer
2015-12-14 20:55 ` Chris Murphy
2015-12-15 0:22 ` Christoph Anton Mitterer
2015-12-11 23:14 ` Eric Sandeen [this message]
2015-12-11 22:06 ` Christoph Anton Mitterer
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