[PATCH 0/5] Backport to 4.9- ext4: protect journal inode's blocks using block_validity

[ashwin-h]

[PATCH 1/5] ext4: avoid declaring fs inconsistent due to invalid file
handles
This patch is backported as functionality in this commit is used by
Patch 2 in this patchset.

[PATCH 2/5] ext4: protect journal inode's blocks using block_validity
Backport to 4.9

[PATCH 3/5] ext4: don't perform block validity checks on the journal
[PATCH 4/5] ext4: fix block validity checks for journal inodes using
[PATCH 5/5] ext4: unsigned int compared against zero
Fixes issues found in Patch 2 in this patchset.

These patches addresses CVE-2019-19319

Colin Ian King (1):
  ext4: unsigned int compared against zero

Theodore Ts'o (4):
  ext4: avoid declaring fs inconsistent due to invalid file handles
  ext4: protect journal inode's blocks using block_validity
  ext4: don't perform block validity checks on the journal inode
  ext4: fix block validity checks for journal inodes using indirect
    blocks

 fs/ext4/block_validity.c | 54 ++++++++++++++++++++++++++++++++++++++++++++++++
 fs/ext4/ext4.h           | 15 ++++++++++++--
 fs/ext4/extents.c        | 12 +++++++----
 fs/ext4/ialloc.c         |  2 +-
 fs/ext4/inode.c          | 48 ++++++++++++++++++++++++++++++------------
 fs/ext4/ioctl.c          |  2 +-
 fs/ext4/namei.c          |  4 ++--
 fs/ext4/resize.c         |  5 +++--
 fs/ext4/super.c          | 19 +++++------------
 9 files changed, 122 insertions(+), 39 deletions(-)

-- 
2.7.4