[PATCH 8/9] xfs: catch bad block numbers freeing extents.

Alex Elder aelder at sgi.com
Thu Apr 7 16:16:46 CDT 2011


On Thu, 2011-04-07 at 11:57 +1000, Dave Chinner wrote:
> From: Dave Chinner <dchinner at redhat.com>
> 
> A fuzzed filesystem crashed a kernel when freeing an extent with a
> block number beyond the end of the filesystem. Convert all the debug
> asserts in xfs_free_extent() to active checks so that we catch bad
> extents and return that the filesytsem is corrupted rather than
> crashing.
> 
> Signed-off-by: Dave Chinner <dchinner at redhat.com>
> Reviewed-by: Christoph Hellwig <hch at lst.de>

Looks good.

Reviewed-by: Alex Elder <aelder at sgi.com>





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