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cubelinux-kernel/Documentation/admin-guide/LSM/SELinux.rst
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Greg Kroah-Hartman 598cf27219 Linux 6.19.3
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com>
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Brett A C Sheffield <bacs@librecast.net>
Tested-by: Mark Brown <broonie@kernel.org>
Tested-by: Luna Jernberg <droidbittin@gmail.com>
Tested-by: Ronald Warsow <rwarsow@gmx.de>
Tested-by: Justin M. Forbes <jforbes@fedoraproject.org>
Tested-by: Ron Economos <re@w6rz.net>
Tested-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-02-19 16:33:27 +01:00

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=======
SELinux
=======
Information about the SELinux kernel subsystem can be found at the
following links:
https://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux.git/tree/README.md
https://github.com/selinuxproject/selinux-kernel/wiki
Information about the SELinux userspace can be found at:
https://github.com/SELinuxProject/selinux/wiki
If you want to use SELinux, chances are you will want
to use the distro-provided policies, or install the
latest reference policy release from
https://github.com/SELinuxProject/refpolicy
However, if you want to install a dummy policy for
testing, you can do using ``mdp`` provided under
scripts/selinux. Note that this requires the selinux
userspace to be installed - in particular you will
need checkpolicy to compile a kernel, and setfiles and
fixfiles to label the filesystem.
1. Compile the kernel with selinux enabled.
2. Type ``make`` to compile ``mdp``.
3. Make sure that you are not running with
SELinux enabled and a real policy. If
you are, reboot with selinux disabled
before continuing.
4. Run install_policy.sh::
cd scripts/selinux
sh install_policy.sh
Step 4 will create a new dummy policy valid for your
kernel, with a single selinux user, role, and type.
It will compile the policy, will set your ``SELINUXTYPE`` to
``dummy`` in ``/etc/selinux/config``, install the compiled policy
as ``dummy``, and relabel your filesystem.