1anaconda_selinux(8) SELinux Policy anaconda anaconda_selinux(8)
2
6 anaconda_selinux - Security Enhanced Linux Policy for the anaconda pro‐
7 cesses
8
10 Security-Enhanced Linux secures the anaconda processes via flexible
11 mandatory access control.
12 The anaconda processes execute with the anaconda_t SELinux type. You
14 can check if you have these processes running by executing the ps com‐
15 mand with the -Z qualifier.
16 For example:
18 ps -eZ | grep anaconda_t
20
24 The anaconda_t SELinux type can be entered via the anaconda_exec_t file
25 type.
26 The default entrypoint paths for the anaconda_t domain are the follow‐
28 ing:
29
33 SELinux defines process types (domains) for each process running on the
34 system
35 You can see the context of a process using the -Z option to ps
37 Policy governs the access confined processes have to files. SELinux
39 anaconda policy is very flexible allowing users to setup their anaconda
40 processes in as secure a method as possible.
41 The following process types are defined for anaconda:
43 anaconda_t
45 Note: semanage permissive -a anaconda_t can be used to make the process
47 type anaconda_t permissive. SELinux does not deny access to permissive
48 process types, but the AVC (SELinux denials) messages are still gener‐
49 ated.
50
53 SELinux policy is customizable based on least access required. ana‐
54 conda policy is extremely flexible and has several booleans that allow
55 you to manipulate the policy and run anaconda with the tightest access
56 possible.
57 If you want to deny user domains applications to map a memory region as
61 both executable and writable, this is dangerous and the executable
62 should be reported in bugzilla, you must turn on the deny_execmem bool‐
63 ean. Enabled by default.
64 setsebool -P deny_execmem 1
66 If you want to deny any process from ptracing or debugging any other
70 processes, you must turn on the deny_ptrace boolean. Enabled by
71 default.
72 setsebool -P deny_ptrace 1
74 If you want to allow any process to mmap any file on system with
78 attribute file_type, you must turn on the domain_can_mmap_files bool‐
79 ean. Enabled by default.
80 setsebool -P domain_can_mmap_files 1
82 If you want to allow all domains write to kmsg_device, while kernel is
86 executed with systemd.log_target=kmsg parameter, you must turn on the
87 domain_can_write_kmsg boolean. Disabled by default.
88 setsebool -P domain_can_write_kmsg 1
90 If you want to allow all domains to use other domains file descriptors,
94 you must turn on the domain_fd_use boolean. Enabled by default.
95 setsebool -P domain_fd_use 1
97 If you want to allow all domains to have the kernel load modules, you
101 must turn on the domain_kernel_load_modules boolean. Disabled by
102 default.
103 setsebool -P domain_kernel_load_modules 1
105 If you want to allow all domains to execute in fips_mode, you must turn
109 on the fips_mode boolean. Enabled by default.
110 setsebool -P fips_mode 1
112 If you want to enable reading of urandom for all domains, you must turn
116 on the global_ssp boolean. Disabled by default.
117 setsebool -P global_ssp 1
119 If you want to control the ability to mmap a low area of the address
123 space, as configured by /proc/sys/vm/mmap_min_addr, you must turn on
124 the mmap_low_allowed boolean. Disabled by default.
125 setsebool -P mmap_low_allowed 1
127 If you want to disable kernel module loading, you must turn on the
131 secure_mode_insmod boolean. Enabled by default.
132 setsebool -P secure_mode_insmod 1
134 If you want to boolean to determine whether the system permits loading
138 policy, setting enforcing mode, and changing boolean values. Set this
139 to true and you have to reboot to set it back, you must turn on the
140 secure_mode_policyload boolean. Enabled by default.
141 setsebool -P secure_mode_policyload 1
143 If you want to allow unconfined executables to make their heap memory
147 executable. Doing this is a really bad idea. Probably indicates a
148 badly coded executable, but could indicate an attack. This executable
149 should be reported in bugzilla, you must turn on the selin‐
150 uxuser_execheap boolean. Disabled by default.
151 setsebool -P selinuxuser_execheap 1
153 If you want to allow all unconfined executables to use libraries
157 requiring text relocation that are not labeled textrel_shlib_t, you
158 must turn on the selinuxuser_execmod boolean. Enabled by default.
159 setsebool -P selinuxuser_execmod 1
161 If you want to allow unconfined executables to make their stack exe‐
165 cutable. This should never, ever be necessary. Probably indicates a
166 badly coded executable, but could indicate an attack. This executable
167 should be reported in bugzilla, you must turn on the selinuxuser_exec‐
168 stack boolean. Enabled by default.
169 setsebool -P selinuxuser_execstack 1
171 If you want to support X userspace object manager, you must turn on the
175 xserver_object_manager boolean. Enabled by default.
176 setsebool -P xserver_object_manager 1
178
182 The SELinux process type anaconda_t can manage files labeled with the
183 following file types. The paths listed are the default paths for these
184 file types. Note the processes UID still need to have DAC permissions.
185 file_type
187 all files on the system
189
192 semanage fcontext can also be used to manipulate default file context
193 mappings.
194 semanage permissive can also be used to manipulate whether or not a
196 process type is permissive.
197 semanage module can also be used to enable/disable/install/remove pol‐
199 icy modules.
200 semanage boolean can also be used to manipulate the booleans
202 system-config-selinux is a GUI tool available to customize SELinux pol‐
205 icy settings.
206
209 This manual page was auto-generated using sepolicy manpage .
210
213 selinux(8), anaconda(8), semanage(8), restorecon(8), chcon(1), sepol‐
214 icy(8) , setsebool(8)
215anaconda 19-04-25 anaconda_selinux(8)