chrome_selinux (8) - Linux Man Pages
chrome_selinux: Security Enhanced Linux Policy for the chrome processes
NAMEchrome_selinux - Security Enhanced Linux Policy for the chrome processes
Security-Enhanced Linux secures the chrome processes via flexible mandatory access control.
BOOLEANSSELinux policy is customizable based on least access required. chrome policy is extremely flexible and has several booleans that allow you to manipulate the policy and run chrome with the tightest access possible.
If you want to allow unconfined users to transition to the chrome sandbox domains when running chrome-sandbo, you must turn on the unconfined_chrome_sandbox_transition boolean.
setsebool -P unconfined_chrome_sandbox_transition 1
FILE CONTEXTSSELinux requires files to have an extended attribute to define the file type.
You can see the context of a file using the -Z option to lsP Policy governs the access confined processes have to these files. SELinux chrome policy is very flexible allowing users to setup their chrome processes in as secure a method as possible.
The following file types are defined for chrome:
- Set files with the chrome_sandbox_exec_t type, if you want to transition an executable to the chrome_sandbox_t domain.
- Set files with the chrome_sandbox_nacl_exec_t type, if you want to transition an executable to the chrome_sandbox_nacl_t domain.
- Set files with the chrome_sandbox_tmp_t type, if you want to store chrome sandbox temporary files in the /tmp directories.
- Set files with the chrome_sandbox_tmpfs_t type, if you want to store chrome sandbox files on a tmpfs file system.
Note: File context can be temporarily modified with the chcon command. If you want to permanantly change the file context you need to use the semanage fcontext command. This will modify the SELinux labeling database. You will need to use restorecon to apply the labels.
PROCESS TYPESSELinux defines process types (domains) for each process running on the system
You can see the context of a process using the -Z option to psP Policy governs the access confined processes have to files. SELinux chrome policy is very flexible allowing users to setup their chrome processes in as secure a method as possible.
The following process types are defined for chrome:
Note: semanage permissive -a PROCESS_TYPE can be used to make a process type permissive. Permissive process types are not denied access by SELinux. AVC messages will still be generated.
COMMANDSsemanage 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.