1unconfined_execmem_selinSuExL(i8n)ux Policy unconfined_euxneccomnefmined_execmem_selinux(8)
2
6 unconfined_execmem_selinux - Security Enhanced Linux Policy for the
7 unconfined_execmem processes
8
10 Security-Enhanced Linux secures the unconfined_execmem processes via
11 flexible mandatory access control.
12 The unconfined_execmem processes execute with the unconfined_execmem_t
14 SELinux type. You can check if you have these processes running by exe‐
15 cuting the ps command with the -Z qualifier.
16 For example:
18 ps -eZ | grep unconfined_execmem_t
20
24 The unconfined_execmem_t SELinux type can be entered via the
25 execmem_exec_t, file_type, xsession_exec_t, unlabeled_t, proc_type,
26 filesystem_type, mtrr_device_t, sysctl_type, openoffice_exec_t, nsplu‐
27 gin_exec_t file types.
28 The default entrypoint paths for the unconfined_execmem_t domain are
30 the following:
31 /usr/lib(64)?/ghc-[^/]+/ghc.*, /usr/lib(64)/virtualbox/VirtualBox,
33 /usr/lib(64)?/gimp/2.0/plug-ins/help-browser, /usr/lib(64)?/chromium-
34 browser/chromium-browser, /opt/real/(.*/)?realplay.bin,
35 /opt/Adobe.*AIR/.*/Resources/Adobe.AIR.Updater,
36 /opt/Adobe.*AIR/.*/Resources/Adobe.AIR.Application, /usr/sbin/VBox.*,
37 /usr/bin/haddock.*, /usr/libexec/ghc-[^/]+/.*bin,
38 /usr/libexec/ghc-[^/]+/ghc.*, /usr/lib/wingide-[^/]+/bin/PyCore/python,
39 /usr/lib/erlang/erts-[^/]+/bin/beam.smp, /usr/lib/thunder‐
40 bird-[^/]+/thunderbird-bin, /usr/lib64/erlang/erts-[^/]+/bin/beam.smp,
41 /usr/bin/sbcl, /usr/bin/darcs, /usr/bin/skype, /usr/bin/dosbox,
42 /usr/bin/runghc, /usr/bin/hasktags, /usr/bin/valgrind, /usr/bin/aticon‐
43 fig, /usr/bin/runhaskell, /usr/lib/R/bin/exec/R,
44 /usr/lib64/R/bin/exec/R, /usr/sbin/vboxadd-service,
45 /opt/google/chrome/chrome, /usr/lib/ia32el/ia32x_loader, /opt/like‐
46 wise/bin/domainjoin-cli, /opt/google/chrome/google-chrome,
47 /opt/real/RealPlayer/realplay.bin, /usr/local/RealPlayer/realplay.bin,
48 /opt/Komodo-Edit-5/lib/mozilla/komodo-bin, all files on the system,
49 /etc/kde3?/kdm/Xreset, /etc/kde3?/kdm/Xstartup, /etc/kde3?/kdm/Xses‐
50 sion, /etc/X11/[wx]dm/Xreset.*, /etc/X11/[wxg]dm/Xsession,
51 /etc/X11/Xsession[^/]*, /etc/X11/wdm/Xsetup.*, /etc/X11/wdm/Xstartup.*,
52 /dev/cpu/mtrr, /opt/openoffice.org.*/program/.+.bin, /usr/lib/open‐
53 office.org.*/program/.+.bin, /usr/lib64/openoffice.org.*/pro‐
54 gram/.+.bin, /usr/lib(64)?/nspluginwrapper/npviewer.bin,
55 /usr/bin/nspluginscan, /usr/bin/nspluginviewer
56
58 SELinux defines process types (domains) for each process running on the
59 system
60 You can see the context of a process using the -Z option to ps
62 Policy governs the access confined processes have to files. SELinux
64 unconfined_execmem policy is very flexible allowing users to setup
65 their unconfined_execmem processes in as secure a method as possible.
66 The following process types are defined for unconfined_execmem:
68 unconfined_execmem_t
70 Note: semanage permissive -a unconfined_execmem_t can be used to make
72 the process type unconfined_execmem_t permissive. SELinux does not deny
73 access to permissive process types, but the AVC (SELinux denials) mes‐
74 sages are still generated.
75
78 SELinux policy is customizable based on least access required. uncon‐
79 fined_execmem policy is extremely flexible and has several booleans
80 that allow you to manipulate the policy and run unconfined_execmem with
81 the tightest access possible.
82 If you want to allow direct login to the console device. Required for
86 System 390, you must turn on the allow_console_login boolean. Enabled
87 by default.
88 setsebool -P allow_console_login 1
90 If you want to allow all daemons the ability to read/write terminals,
94 you must turn on the allow_daemons_use_tty boolean. Disabled by
95 default.
96 setsebool -P allow_daemons_use_tty 1
98 If you want to allow all domains to use other domains file descriptors,
102 you must turn on the allow_domain_fd_use boolean. Enabled by default.
103 setsebool -P allow_domain_fd_use 1
105 If you want to allow unconfined executables to make their heap memory
109 executable. Doing this is a really bad idea. Probably indicates a
110 badly coded executable, but could indicate an attack. This executable
111 should be reported in bugzilla, you must turn on the allow_execheap
112 boolean. Disabled by default.
113 setsebool -P allow_execheap 1
115 If you want to allow unconfined executables to map a memory region as
119 both executable and writable, this is dangerous and the executable
120 should be reported in bugzilla), you must turn on the allow_execmem
121 boolean. Enabled by default.
122 setsebool -P allow_execmem 1
124 If you want to allow all unconfined executables to use libraries
128 requiring text relocation that are not labeled textrel_shlib_t), you
129 must turn on the allow_execmod boolean. Enabled by default.
130 setsebool -P allow_execmod 1
132 If you want to allow unconfined executables to make their stack exe‐
136 cutable. This should never, ever be necessary. Probably indicates a
137 badly coded executable, but could indicate an attack. This executable
138 should be reported in bugzilla), you must turn on the allow_execstack
139 boolean. Enabled by default.
140 setsebool -P allow_execstack 1
142 If you want to allow confined applications to run with kerberos, you
146 must turn on the allow_kerberos boolean. Enabled by default.
147 setsebool -P allow_kerberos 1
149 If you want to allow sysadm to debug or ptrace all processes, you must
153 turn on the allow_ptrace boolean. Disabled by default.
154 setsebool -P allow_ptrace 1
156 If you want to transition to confined nsplugin domains from unconfined
160 user, you must turn on the allow_unconfined_nsplugin_transition bool‐
161 ean. Enabled by default.
162 setsebool -P allow_unconfined_nsplugin_transition 1
164 If you want to allows clients to write to the X server shared memory
168 segments, you must turn on the allow_write_xshm boolean. Disabled by
169 default.
170 setsebool -P allow_write_xshm 1
172 If you want to allow system to run with NIS, you must turn on the
176 allow_ypbind boolean. Disabled by default.
177 setsebool -P allow_ypbind 1
179 If you want to allow all domains to have the kernel load modules, you
183 must turn on the domain_kernel_load_modules boolean. Disabled by
184 default.
185 setsebool -P domain_kernel_load_modules 1
187 If you want to allow all domains to execute in fips_mode, you must turn
191 on the fips_mode boolean. Enabled by default.
192 setsebool -P fips_mode 1
194 If you want to enable reading of urandom for all domains, you must turn
198 on the global_ssp boolean. Disabled by default.
199 setsebool -P global_ssp 1
201 If you want to allow certain domains to map low memory in the kernel,
205 you must turn on the mmap_low_allowed boolean. Disabled by default.
206 setsebool -P mmap_low_allowed 1
208 If you want to allow confined applications to use nscd shared memory,
212 you must turn on the nscd_use_shm boolean. Enabled by default.
213 setsebool -P nscd_use_shm 1
215 If you want to enabling secure mode disallows programs, such as new‐
219 role, from transitioning to administrative user domains, you must turn
220 on the secure_mode boolean. Disabled by default.
221 setsebool -P secure_mode 1
223 If you want to boolean to determine whether the system permits loading
227 policy, setting enforcing mode, and changing boolean values. Set this
228 to true and you have to reboot to set it back, you must turn on the
229 secure_mode_policyload boolean. Disabled by default.
230 setsebool -P secure_mode_policyload 1
232 If you want to allow ssh logins as sysadm_r:sysadm_t, you must turn on
236 the ssh_sysadm_login boolean. Disabled by default.
237 setsebool -P ssh_sysadm_login 1
239 If you want to allow unconfined users to transition to the Mozilla
243 plugin domain when running xulrunner plugin-container, you must turn on
244 the unconfined_mozilla_plugin_transition boolean. Enabled by default.
245 setsebool -P unconfined_mozilla_plugin_transition 1
247 If you want to allow regular users direct dri device access, you must
251 turn on the user_direct_dri boolean. Enabled by default.
252 setsebool -P user_direct_dri 1
254 If you want to allow xdm logins as sysadm, you must turn on the
258 xdm_sysadm_login boolean. Disabled by default.
259 setsebool -P xdm_sysadm_login 1
261 If you want to support X userspace object manager, you must turn on the
265 xserver_object_manager boolean. Disabled by default.
266 setsebool -P xserver_object_manager 1
268
272 The SELinux process type unconfined_execmem_t can manage files labeled
273 with the following file types. The paths listed are the default paths
274 for these file types. Note the processes UID still need to have DAC
275 permissions.
276 file_type
278 all files on the system
280
283 semanage fcontext can also be used to manipulate default file context
284 mappings.
285 semanage permissive can also be used to manipulate whether or not a
287 process type is permissive.
288 semanage module can also be used to enable/disable/install/remove pol‐
290 icy modules.
291 semanage boolean can also be used to manipulate the booleans
293 system-config-selinux is a GUI tool available to customize SELinux pol‐
296 icy settings.
297
300 This manual page was auto-generated using sepolicy manpage .
301
304 selinux(8), unconfined_execmem(8), semanage(8), restorecon(8), chcon(1)
305 , setsebool(8)
306unconfined_execmem 15-06-03 unconfined_execmem_selinux(8)