ntfs3: fix boundary check in ntfs_dir_count()

ntfs_dir_emit() skips index entries whose fname does not fit in e->size,
but ntfs_dir_count() still accepted them via de_get_fname() alone.
dir_is_empty() can then disagree with readdir: a malformed directory
appears empty in ls while rmdir fails with ENOTEMPTY.

Factor the fname/key bounds check into de_fname_fits() and use it from
ntfs_dir_emit() and de_countable_fname() so count/readdir share the same
entry acceptance rules.

Signed-off-by: Xixin Liu <liuxixin@kylinos.cn>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>

0 files changed, 0 insertions, 0 deletions