From: Dave Chinner <david@fromorbit.com>
To: Anatoly Trosinenko <anatoly.trosinenko@gmail.com>
Cc: "Darrick J. Wong" <darrick.wong@oracle.com>,
linux-xfs@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: XFS: Hang and dmesg flood on mounting invalid FS image
Date: Mon, 29 Oct 2018 18:10:38 +1100 [thread overview]
Message-ID: <20181029071038.GL19305@dastard> (raw)
In-Reply-To: <CAE5jQCeT4hONkK8cmkMoReoW-HqVLqnYN6c3YrxDjwNAf=nfEA@mail.gmail.com>
On Mon, Oct 29, 2018 at 09:57:20AM +0300, Anatoly Trosinenko wrote:
> > How did the corruption occur?
>
> It is a fuzzed image. Most probably, it was artificially "patched" by
> fuzzer. Or do you mean "what particular bytes were changed"?
I wondered how this specific corruption occurred in the real world.
If i was a real world problem, it would have been indicative of a
code bug if it did occur (i.e. whatever wrote the log record would
have been broken) but seeing as it's a fuzzer problem, I don't need
to look for any code bugs other than "we didn't validate the input
properly".
Cheers,
Dave.
--
Dave Chinner
david@fromorbit.com
prev parent reply other threads:[~2018-10-29 15:58 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-28 17:50 XFS: Hang and dmesg flood on mounting invalid FS image Anatoly Trosinenko
2018-10-29 1:20 ` Dave Chinner
2018-10-29 6:57 ` Anatoly Trosinenko
2018-10-29 7:10 ` Dave Chinner [this message]
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