| commit | ed150e1a5cf20c04cf0b2d2c34e498fc1d6519be | [log] [tgz] |
|---|---|---|
| author | Darrick J. Wong <darrick.wong@oracle.com> | Fri Aug 26 15:58:40 2016 +1000 |
| committer | Dave Chinner <david@fromorbit.com> | Fri Aug 26 15:58:40 2016 +1000 |
| tree | 867b5a19de18ad47ece6325be6ce8c6f986aaafd | |
| parent | 32438cf9d54bd53b531f6d98814e84dd278360c1 [diff] |
xfs: don't perform lookups on zero-height btrees If the caller passes in a cursor to a zero-height btree (which is impossible), we never set block to anything but NULL, which causes the later dereference of it to crash. Instead, just return -EFSCORRUPTED. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Dave Chinner <david@fromorbit.com>