[PATCH 0/2] btrfs: add free space tree checks except for FREE_SPACE_BITMAP

[Qu Wenruo <wqu@suse.com>]

There is a fuzzed image report (*) that a bad item size for
FREE_SPACE_BITMAP item can lead to various problems.

And I'm surprised that we do not have any checks for such critical tree,
so let's add the proper checks for FREE_SPACE_INFO and
FREE_SPACE_EXTENT items

The check for FREE_SPACE_BITMAP item is reserved for the reporter, whose
initial fix is not properly put into tree-checker, and also as an
example for the reporter to follow.

Qu Wenruo (2):
  btrfs: tree-checker: introduce checks for FREE_SPACE_INFO
  btrfs: tree-checker: introduce checks for FREE_SPACE_EXTENT

 fs/btrfs/tree-checker.c         | 70 +++++++++++++++++++++++++++++++++
 include/uapi/linux/btrfs_tree.h |  3 +-
 2 files changed, 72 insertions(+), 1 deletion(-)

-- 
2.53.0