kernel.git/fs/ntfs3/dir.c, branch linux-6.15.y

fs/ntfs3: Add sanity check for file name

2025-08-20T16:35:52Z

[ Upstream commit e841ecb139339602bc1853f5f09daa5d1ea920a2 ] The length of the file name should be smaller than the directory entry size. Reported-by: syzbot+598057afa0f49e62bd23@syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=598057afa0f49e62bd23 Signed-off-by: Lizhi Xu Signed-off-by: Konstantin Komarov Signed-off-by: Sasha Levin

fs/ntfs3: Unify inode corruption marking with _ntfs_bad_inode()

2024-12-30T08:37:40Z

Also reworked error handling in a couple of places. Signed-off-by: Konstantin Komarov

fs/ntfs3: Redesign legacy ntfs support

2024-07-11T09:19:45Z

1) Make is_legacy_ntfs static inline. 2) Put legacy file_operations under #if IS_ENABLED(CONFIG_NTFS_FS). Cc: Matthew Wilcox (Oracle) Cc: Christian Brauner Signed-off-by: Konstantin Komarov

fs/ntfs3: Check more cases when directory is corrupted

2024-07-11T09:19:44Z

Mark ntfs dirty in this case. Rename ntfs_filldir to ntfs_dir_emit. Signed-off-by: Konstantin Komarov

fs/ntfs3: Fix getting file type

2024-06-07T11:31:08Z

An additional condition causes the mft record to be read from disk and get the file type dt_type. Fixes: 22457c047ed97 ("fs/ntfs3: Modified fix directory element type detection") Signed-off-by: Konstantin Komarov

Merge tag 'ntfs3_for_6.10' of https://github.com/Paragon-Software-Group/linux-ntfs3

2024-05-25T21:19:01Z

Pull ntfs3 updates from Konstantin Komarov: "Fixes: - reusing of the file index (could cause the file to be trimmed) - infinite dir enumeration - taking DOS names into account during link counting - le32_to_cpu conversion, 32 bit overflow, NULL check - some code was refactored Changes: - removed max link count info display during driver init Remove: - atomic_open has been removed for lack of use" * tag 'ntfs3_for_6.10' of https://github.com/Paragon-Software-Group/linux-ntfs3: fs/ntfs3: Break dir enumeration if directory contents error fs/ntfs3: Fix case when index is reused during tree transformation fs/ntfs3: Mark volume as dirty if xattr is broken fs/ntfs3: Always make file nonresident on fallocate call fs/ntfs3: Redesign ntfs_create_inode to return error code instead of inode fs/ntfs3: Use variable length array instead of fixed size fs/ntfs3: Use 64 bit variable to avoid 32 bit overflow fs/ntfs3: Check 'folio' pointer for NULL fs/ntfs3: Missed le32_to_cpu conversion fs/ntfs3: Remove max link count info display during driver init fs/ntfs3: Taking DOS names into account during link counting fs/ntfs3: remove atomic_open fs/ntfs3: use kcalloc() instead of kzalloc()

fs/ntfs3: Break dir enumeration if directory contents error

2024-05-24T09:50:12Z

If we somehow attempt to read beyond the directory size, an error is supposed to be returned. However, in some cases, read requests do not stop and instead enter into a loop. To avoid this, we set the position in the directory to the end. Signed-off-by: Konstantin Komarov Cc: stable@vger.kernel.org

ntfs3: add legacy ntfs file operations

2024-04-23T07:39:07Z

To ensure that ioctl()s can't be used to circumvent write restrictions. Signed-off-by: Christian Brauner

fs/ntfs3: Add ioctl operation for directories (FITRIM)

2024-01-29T09:05:09Z

While ntfs3 supports discards, FITRIM ioctl() command has defined only for regular files. This may confuse users trying to invoke `fstrim` utility with the directory argument (for example, call `fstrim ` which is the common practice). In this case, ioctl() returns -ENOTTY without any error messages in kernel ring buffer, this may be easily interpreted as no support for discards in ntfs3 driver. Currently only FITRIM command implemented in ntfs_ioctl() and passed inode used only for dereferencing NTFS superblock, so no need for separate ioctl() handler for directories, just add existing ntfs_ioctl() handler to ntfs_dir_operations. Signed-off-by: Nekun Signed-off-by: Konstantin Komarov

fs/ntfs3: Use i_size_read and i_size_write

2024-01-29T07:48:33Z

Signed-off-by: Konstantin Komarov