The project util-linux doesn't use the same license for all of the code. There is code under: * GPL-2.0-or-later - GNU General Public License version 2, or any later version * GPL-2.0 - GNU General Public License version 2 * LGPL-2.1-or-later - GNU Lesser General Public License 2.1 or any later version * BSD-3-Clause - BSD 3-Clause "New" or "Revised" License * BSD-4-Clause-UC - BSD 4-Clause University of California-Specific * Public Domain Please, check the source code for more details. A license is usually at the start of each source file. The ./COPYING file (GPL-2.0-or-later) is the default license for code without an explicitly defined license.