nilfs-utils before 2.0.14 installs multiple programs with unnecessary setuid privileges, which allows local users to execute arbitrary commands via the device string in a -c command line option to mkfs.nilfs2.

nilfs2: reject invalid file types when reading inodes

In the Linux kernel, the following vulnerability has been resolved: nilfs2: reject invalid file types when reading inodes To prevent inodes with invalid file types from tripping through the vfs and causing malfunctions or assertion failures, add a missing sanity check when reading an inode from a block device. If the file type is not valid, treat it as a filesystem error.