| commit | 829fa70dddadf9dd041d62b82cd7cea63943899d | [log] [tgz] |
|---|---|---|
| author | Theodore Ts'o <tytso@mit.edu> | Mon Aug 01 00:51:02 2016 -0400 |
| committer | Theodore Ts'o <tytso@mit.edu> | Mon Aug 01 00:51:02 2016 -0400 |
| tree | f926bc39c86de7c7bb21b05e8f47d0844a28325e | |
| parent | 3980bd3b406addb327d858aebd19e229ea340b9a [diff] |
ext4: validate that metadata blocks do not overlap superblock A number of fuzzing failures seem to be caused by allocation bitmaps or other metadata blocks being pointed at the superblock. This can cause kernel BUG or WARNings once the superblock is overwritten, so validate the group descriptor blocks to make sure this doesn't happen. Cc: stable@vger.kernel.org Signed-off-by: Theodore Ts'o <tytso@mit.edu>