[v1] ntfs: tighten EA and index metadata validation

[PATCH 0/4] ntfs: tighten EA and index metadata validation

Hyunchul Lee posted 4 patches 2 days, 17 hours ago

Diff against v2
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There is a newer version of this series

fs/ntfs/dir.c   |  64 +++----------------
fs/ntfs/ea.c    |   8 +++
fs/ntfs/index.c | 193 +++++++++++++++++++++++++++++++++++++-------------------
fs/ntfs/index.h |  12 +++-
fs/ntfs/inode.c |  15 ++---
5 files changed, 162 insertions(+), 130 deletions(-)

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[PATCH 0/4] ntfs: tighten EA and index metadata validation

Posted by Hyunchul Lee 2 days, 17 hours ago

This series tightens validation of on-disk NTFS metadata in the read path.

The first four patches move index validation closer to the point
where index metadata is read and tighten the structural checks for both
$INDEX_ROOT and INDX block headers. The last patch adds a missing bounds
check before accessing fields in an EA entry.

Signed-off-by: Hyunchul Lee <hyc.lee@gmail.com>
---
Hyunchul Lee (4):
      ntfs: validate index block header more strictly
      ntfs: centalize $INDEX_ROOT header validation
      ntfs: validate index entries on reading
      ntfs: add bounds check before accessing EA entries

 fs/ntfs/dir.c   |  64 +++----------------
 fs/ntfs/ea.c    |   8 +++
 fs/ntfs/index.c | 193 +++++++++++++++++++++++++++++++++++++-------------------
 fs/ntfs/index.h |  12 +++-
 fs/ntfs/inode.c |  15 ++---
 5 files changed, 162 insertions(+), 130 deletions(-)
---
base-commit: 5a717e8c387c2a3ccd372a1b34005c1dcedee297
change-id: 20260522-t-fix-oob-v2-626816acbca5

Best regards,
-- 
Thanks,
Hyunchul