NAME¶

kernel_generic_helper_selinux - Security Enhanced Linux Policy for the kernel_generic_helper processes

DESCRIPTION¶

Security-Enhanced Linux secures the kernel_generic_helper processes via flexible mandatory access control.

The kernel_generic_helper processes execute with the kernel_generic_helper_t SELinux type. You can check if you have these processes running by executing the ps command with the -Z qualifier.

For example:

ps -eZ | grep kernel_generic_helper_t

ENTRYPOINTS¶

The kernel_generic_helper_t SELinux type can be entered via the usr_t, bin_t file types.

The default entrypoint paths for the kernel_generic_helper_t domain are the following:

All executables with the default executable label, usually stored in /usr/bin and /usr/sbin. /opt/.*, /usr/.*, /emul/.*, /export(/.*)?, /ostree(/.*)?, /usr/doc(/.*)?/lib(/.*)?, /usr/inclu.e(/.*)?, /usr/share/rpm(/.*)?, /usr/share/doc(/.*)?/README.*, /usr/lib/modules(/.*)/vmlinuz, /usr/lib/modules(/.*)/sysctl.conf, /usr/lib/modules(/.*)/initramfs.img, /usr/lib/sysimage(/.*)?, /usr/lib/ostree-boot(/.*)?, /opt, /usr, /emul

PROCESS TYPES¶

SELinux defines process types (domains) for each process running on the system

You can see the context of a process using the -Z option to ps

Policy governs the access confined processes have to files. SELinux kernel_generic_helper policy is very flexible allowing users to setup their kernel_generic_helper processes in as secure a method as possible.

The following process types are defined for kernel_generic_helper:

kernel_generic_helper_t

Note: semanage permissive -a kernel_generic_helper_t can be used to make the process type kernel_generic_helper_t permissive. SELinux does not deny access to permissive process types, but the AVC (SELinux denials) messages are still generated.

BOOLEANS¶

SELinux policy is customizable based on least access required. kernel_generic_helper policy is extremely flexible and has several booleans that allow you to manipulate the policy and run kernel_generic_helper with the tightest access possible.

If you want to allow all domains to execute in fips_mode, you must turn on the fips_mode boolean. Enabled by default.

setsebool -P fips_mode 1

COMMANDS¶

semanage fcontext can also be used to manipulate default file context mappings.

semanage permissive can also be used to manipulate whether or not a process type is permissive.

semanage module can also be used to enable/disable/install/remove policy modules.

semanage boolean can also be used to manipulate the booleans

system-config-selinux is a GUI tool available to customize SELinux policy settings.

AUTHOR¶

This manual page was auto-generated using sepolicy manpage .

SEE ALSO¶

selinux(8), kernel_generic_helper(8), semanage(8), restorecon(8), chcon(1), sepolicy(8), setsebool(8)