This patch series enables a future version of tune2fs to be able to
modify certain parts of the ext4 superblock without to write to the
block device.

The first patch fixes a potential buffer overrun caused by a
maliciously moified superblock.  The second patch adds support for
32-bit uid and gid's which can have access to the reserved blocks pool.
The last patch adds the ioctl's which will be used by tune2fs.

Signed-off-by: Theodore Ts'o <tytso@mit.edu>
---
Theodore Ts'o (3):
      ext4: avoid potential buffer over-read in parse_apply_sb_mount_options()
      ext4: add support for 32-bit default reserved uid and gid values
      ext4: implemet new ioctls to set and get superblock parameters

 fs/ext4/ext4.h            |  16 ++++-
 fs/ext4/ioctl.c           | 256 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++---
 fs/ext4/super.c           |  25 +++-----
 include/uapi/linux/ext4.h |  75 ++++++++++++++++++++++
 4 files changed, 348 insertions(+), 24 deletions(-)
---
base-commit: b320789d6883cc00ac78ce83bccbfe7ed58afcf0
change-id: 20250830-tune2fs-3376beb72403

Best regards,
-- 
Theodore Ts'o [off-list ref]