1setfiles_mac_selinux(8) SELinux Policy setfiles_mac setfiles_mac_selinux(8)
2
6 setfiles_mac_selinux - Security Enhanced Linux Policy for the set‐
7 files_mac processes
8
10 Security-Enhanced Linux secures the setfiles_mac processes via flexible
11 mandatory access control.
12 The setfiles_mac processes execute with the setfiles_mac_t SELinux
14 type. You can check if you have these processes running by executing
15 the ps command with the -Z qualifier.
16 For example:
18 ps -eZ | grep setfiles_mac_t
20
24 The setfiles_mac_t SELinux type can be entered via the setfiles_exec_t
25 file type.
26 The default entrypoint paths for the setfiles_mac_t domain are the fol‐
28 lowing:
29 /sbin/setfiles.*, /usr/sbin/setfiles.*, /sbin/restorecon,
31 /usr/sbin/restorecon
32
34 SELinux defines process types (domains) for each process running on the
35 system
36 You can see the context of a process using the -Z option to ps
38 Policy governs the access confined processes have to files. SELinux
40 setfiles_mac policy is very flexible allowing users to setup their set‐
41 files_mac processes in as secure a method as possible.
42 The following process types are defined for setfiles_mac:
44 setfiles_mac_t
46 Note: semanage permissive -a setfiles_mac_t can be used to make the
48 process type setfiles_mac_t permissive. SELinux does not deny access to
49 permissive process types, but the AVC (SELinux denials) messages are
50 still generated.
51
54 SELinux policy is customizable based on least access required. set‐
55 files_mac policy is extremely flexible and has several booleans that
56 allow you to manipulate the policy and run setfiles_mac with the tight‐
57 est access possible.
58 If you want to deny user domains applications to map a memory region as
62 both executable and writable, this is dangerous and the executable
63 should be reported in bugzilla, you must turn on the deny_execmem bool‐
64 ean. Enabled by default.
65 setsebool -P deny_execmem 1
67 If you want to control the ability to mmap a low area of the address
71 space, as configured by /proc/sys/vm/mmap_min_addr, you must turn on
72 the mmap_low_allowed boolean. Disabled by default.
73 setsebool -P mmap_low_allowed 1
75 If you want to disable kernel module loading, you must turn on the
79 secure_mode_insmod boolean. Enabled by default.
80 setsebool -P secure_mode_insmod 1
82 If you want to allow unconfined executables to make their heap memory
86 executable. Doing this is a really bad idea. Probably indicates a
87 badly coded executable, but could indicate an attack. This executable
88 should be reported in bugzilla, you must turn on the selin‐
89 uxuser_execheap boolean. Disabled by default.
90 setsebool -P selinuxuser_execheap 1
92 If you want to allow unconfined executables to make their stack exe‐
96 cutable. This should never, ever be necessary. Probably indicates a
97 badly coded executable, but could indicate an attack. This executable
98 should be reported in bugzilla, you must turn on the selinuxuser_exec‐
99 stack boolean. Disabled by default.
100 setsebool -P selinuxuser_execstack 1
102
106 The SELinux process type setfiles_mac_t can manage files labeled with
107 the following file types. The paths listed are the default paths for
108 these file types. Note the processes UID still need to have DAC per‐
109 missions.
110 file_type
112 all files on the system
114
117 semanage fcontext can also be used to manipulate default file context
118 mappings.
119 semanage permissive can also be used to manipulate whether or not a
121 process type is permissive.
122 semanage module can also be used to enable/disable/install/remove pol‐
124 icy modules.
125 semanage boolean can also be used to manipulate the booleans
127 system-config-selinux is a GUI tool available to customize SELinux pol‐
130 icy settings.
131
134 This manual page was auto-generated using sepolicy manpage .
135
138 selinux(8), setfiles_mac(8), semanage(8), restorecon(8), chcon(1),
139 sepolicy(8), setsebool(8)
140setfiles_mac 20-05-05 setfiles_mac_selinux(8)