1unconfined_dbusd_selinux(S8E)Linux Policy unconfined_dbuunscdonfined_dbusd_selinux(8)
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6 unconfined_dbusd_selinux - Security Enhanced Linux Policy for the un‐
7 confined_dbusd processes
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10 Security-Enhanced Linux secures the unconfined_dbusd processes via
11 flexible mandatory access control.
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13 The unconfined_dbusd processes execute with the unconfined_dbusd_t
14 SELinux type. You can check if you have these processes running by exe‐
15 cuting the ps command with the -Z qualifier.
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17 For example:
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19 ps -eZ | grep unconfined_dbusd_t
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24 The unconfined_dbusd_t SELinux type can be entered via the dbusd_exec_t
25 file type.
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27 The default entrypoint paths for the unconfined_dbusd_t domain are the
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30 /usr/bin/dbus-daemon(-1)?, /bin/dbus-daemon, /usr/bin/dbus-broker,
31 /usr/bin/dbus-broker-launch, /lib/dbus-1/dbus-daemon-launch-helper,
32 /usr/lib/dbus-1/dbus-daemon-launch-helper, /usr/libexec/dbus-1/dbus-
33 daemon-launch-helper
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36 SELinux defines process types (domains) for each process running on the
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39 You can see the context of a process using the -Z option to ps
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41 Policy governs the access confined processes have to files. SELinux
42 unconfined_dbusd policy is very flexible allowing users to setup their
43 unconfined_dbusd processes in as secure a method as possible.
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45 The following process types are defined for unconfined_dbusd:
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47 unconfined_dbusd_t
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49 Note: semanage permissive -a unconfined_dbusd_t can be used to make the
50 process type unconfined_dbusd_t permissive. SELinux does not deny ac‐
51 cess to permissive process types, but the AVC (SELinux denials) mes‐
52 sages are still generated.
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56 SELinux policy is customizable based on least access required. uncon‐
57 fined_dbusd policy is extremely flexible and has several booleans that
58 allow you to manipulate the policy and run unconfined_dbusd with the
59 tightest access possible.
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63 If you want to deny user domains applications to map a memory region as
64 both executable and writable, this is dangerous and the executable
65 should be reported in bugzilla, you must turn on the deny_execmem bool‐
66 ean. Enabled by default.
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68 setsebool -P deny_execmem 1
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72 If you want to control the ability to mmap a low area of the address
73 space, as configured by /proc/sys/vm/mmap_min_addr, you must turn on
74 the mmap_low_allowed boolean. Disabled by default.
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76 setsebool -P mmap_low_allowed 1
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80 If you want to disable kernel module loading, you must turn on the se‐
81 cure_mode_insmod boolean. Enabled by default.
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83 setsebool -P secure_mode_insmod 1
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87 If you want to allow unconfined executables to make their heap memory
88 executable. Doing this is a really bad idea. Probably indicates a
89 badly coded executable, but could indicate an attack. This executable
90 should be reported in bugzilla, you must turn on the selinuxuser_ex‐
91 echeap boolean. Disabled by default.
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93 setsebool -P selinuxuser_execheap 1
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97 If you want to allow unconfined executables to make their stack exe‐
98 cutable. This should never, ever be necessary. Probably indicates a
99 badly coded executable, but could indicate an attack. This executable
100 should be reported in bugzilla, you must turn on the selinuxuser_exec‐
101 stack boolean. Enabled by default.
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103 setsebool -P selinuxuser_execstack 1
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108 The SELinux process type unconfined_dbusd_t can manage files labeled
109 with the following file types. The paths listed are the default paths
110 for these file types. Note the processes UID still need to have DAC
111 permissions.
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113 file_type
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115 all files on the system
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119 semanage fcontext can also be used to manipulate default file context
120 mappings.
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122 semanage permissive can also be used to manipulate whether or not a
123 process type is permissive.
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125 semanage module can also be used to enable/disable/install/remove pol‐
126 icy modules.
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128 semanage boolean can also be used to manipulate the booleans
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131 system-config-selinux is a GUI tool available to customize SELinux pol‐
132 icy settings.
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136 This manual page was auto-generated using sepolicy manpage .
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140 selinux(8), unconfined_dbusd(8), semanage(8), restorecon(8), chcon(1),
141 sepolicy(8), setsebool(8)
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145unconfined_dbusd 22-05-27 unconfined_dbusd_selinux(8)