ntfs_reparse_set_wsl_symlink() converts the symlink target into an
allocated NLS string and transfers ownership to ni->target only after
ntfs_set_ntfs_reparse_data() succeeds. If setting the reparse data fails,
the converted target is left unreferenced and leaks.

Free the converted target on the reparse update failure path. Use kfree()
for the other local failure path as well, matching the ntfs_ucstonls()
allocation contract.

Fixes: fc053f05ca28 ("ntfs: add reparse and ea operations")
Signed-off-by: DaeMyung Kang <charsyam@gmail.com>
Reviewed-by: Hyunchul Lee <hyc.lee@gmail.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>

Add bound validations in ntfs_attr_find to ensure
attribute value offsets and lengths are safe to
access. It verifies that resident attributes meet
type-specific minimum length requirements and
check the mapping_pairs_offset boundaries for
non-resident attributes.

Signed-off-by: Hyunchul Lee <hyc.lee@gmail.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>

Implement support for Extended Attributes and Reparse Points, enabling
Posix ACL support and, and compatibility with Windows Subsystem for
Linux (WSL) metadata.

Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>