1sosreport_selinux(8) SELinux Policy sosreport sosreport_selinux(8)
2
3
4
6 sosreport_selinux - Security Enhanced Linux Policy for the sosreport
7 processes
8
10 Security-Enhanced Linux secures the sosreport processes via flexible
11 mandatory access control.
12
13 The sosreport processes execute with the sosreport_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
17 For example:
18
19 ps -eZ | grep sosreport_t
20
21
22
24 The sosreport_t SELinux type can be entered via the sosreport_exec_t
25 file type.
26
27 The default entrypoint paths for the sosreport_t domain are the follow‐
28 ing:
29
30 /usr/sbin/sosreport
31
33 SELinux defines process types (domains) for each process running on the
34 system
35
36 You can see the context of a process using the -Z option to ps
37
38 Policy governs the access confined processes have to files. SELinux
39 sosreport policy is very flexible allowing users to setup their sosre‐
40 port processes in as secure a method as possible.
41
42 The following process types are defined for sosreport:
43
44 sosreport_t
45
46 Note: semanage permissive -a sosreport_t can be used to make the
47 process type sosreport_t permissive. SELinux does not deny access to
48 permissive process types, but the AVC (SELinux denials) messages are
49 still generated.
50
51
53 SELinux policy is customizable based on least access required. sosre‐
54 port policy is extremely flexible and has several booleans that allow
55 you to manipulate the policy and run sosreport with the tightest access
56 possible.
57
58
59
60 If you want to allow users to resolve user passwd entries directly from
61 ldap rather then using a sssd server, you must turn on the authlo‐
62 gin_nsswitch_use_ldap boolean. Disabled by default.
63
64 setsebool -P authlogin_nsswitch_use_ldap 1
65
66
67
68 If you want to deny user domains applications to map a memory region as
69 both executable and writable, this is dangerous and the executable
70 should be reported in bugzilla, you must turn on the deny_execmem bool‐
71 ean. Enabled by default.
72
73 setsebool -P deny_execmem 1
74
75
76
77 If you want to allow all domains to execute in fips_mode, you must turn
78 on the fips_mode boolean. Enabled by default.
79
80 setsebool -P fips_mode 1
81
82
83
84 If you want to allow confined applications to run with kerberos, you
85 must turn on the kerberos_enabled boolean. Enabled by default.
86
87 setsebool -P kerberos_enabled 1
88
89
90
91 If you want to control the ability to mmap a low area of the address
92 space, as configured by /proc/sys/vm/mmap_min_addr, you must turn on
93 the mmap_low_allowed boolean. Disabled by default.
94
95 setsebool -P mmap_low_allowed 1
96
97
98
99 If you want to allow system to run with NIS, you must turn on the
100 nis_enabled boolean. Disabled by default.
101
102 setsebool -P nis_enabled 1
103
104
105
106 If you want to allow confined applications to use nscd shared memory,
107 you must turn on the nscd_use_shm boolean. Disabled by default.
108
109 setsebool -P nscd_use_shm 1
110
111
112
113 If you want to disable kernel module loading, you must turn on the
114 secure_mode_insmod boolean. Enabled by default.
115
116 setsebool -P secure_mode_insmod 1
117
118
119
120 If you want to allow unconfined executables to make their heap memory
121 executable. Doing this is a really bad idea. Probably indicates a
122 badly coded executable, but could indicate an attack. This executable
123 should be reported in bugzilla, you must turn on the selin‐
124 uxuser_execheap boolean. Disabled by default.
125
126 setsebool -P selinuxuser_execheap 1
127
128
129
130 If you want to allow unconfined executables to make their stack exe‐
131 cutable. This should never, ever be necessary. Probably indicates a
132 badly coded executable, but could indicate an attack. This executable
133 should be reported in bugzilla, you must turn on the selinuxuser_exec‐
134 stack boolean. Enabled by default.
135
136 setsebool -P selinuxuser_execstack 1
137
138
139
141 The SELinux process type sosreport_t can manage files labeled with the
142 following file types. The paths listed are the default paths for these
143 file types. Note the processes UID still need to have DAC permissions.
144
145 file_type
146
147 all files on the system
148
149
151 SELinux requires files to have an extended attribute to define the file
152 type.
153
154 You can see the context of a file using the -Z option to ls
155
156 Policy governs the access confined processes have to these files.
157 SELinux sosreport policy is very flexible allowing users to setup their
158 sosreport processes in as secure a method as possible.
159
160 STANDARD FILE CONTEXT
161
162 SELinux defines the file context types for the sosreport, if you wanted
163 to store files with these types in a diffent paths, you need to execute
164 the semanage command to sepecify alternate labeling and then use
165 restorecon to put the labels on disk.
166
167 semanage fcontext -a -t sosreport_var_run_t '/srv/mysosreport_con‐
168 tent(/.*)?'
169 restorecon -R -v /srv/mysosreport_content
170
171 Note: SELinux often uses regular expressions to specify labels that
172 match multiple files.
173
174 The following file types are defined for sosreport:
175
176
177
178 sosreport_exec_t
179
180 - Set files with the sosreport_exec_t type, if you want to transition
181 an executable to the sosreport_t domain.
182
183
184
185 sosreport_tmp_t
186
187 - Set files with the sosreport_tmp_t type, if you want to store sosre‐
188 port temporary files in the /tmp directories.
189
190
191
192 sosreport_tmpfs_t
193
194 - Set files with the sosreport_tmpfs_t type, if you want to store sos‐
195 report files on a tmpfs file system.
196
197
198
199 sosreport_var_run_t
200
201 - Set files with the sosreport_var_run_t type, if you want to store the
202 sosreport files under the /run or /var/run directory.
203
204
205
206 Note: File context can be temporarily modified with the chcon command.
207 If you want to permanently change the file context you need to use the
208 semanage fcontext command. This will modify the SELinux labeling data‐
209 base. You will need to use restorecon to apply the labels.
210
211
213 semanage fcontext can also be used to manipulate default file context
214 mappings.
215
216 semanage permissive can also be used to manipulate whether or not a
217 process type is permissive.
218
219 semanage module can also be used to enable/disable/install/remove pol‐
220 icy modules.
221
222 semanage boolean can also be used to manipulate the booleans
223
224
225 system-config-selinux is a GUI tool available to customize SELinux pol‐
226 icy settings.
227
228
230 This manual page was auto-generated using sepolicy manpage .
231
232
234 selinux(8), sosreport(8), semanage(8), restorecon(8), chcon(1), sepol‐
235 icy(8), setsebool(8)
236
237
238
239sosreport 19-05-30 sosreport_selinux(8)