1sosreport_selinux(8) SELinux Policy sosreport sosreport_selinux(8)
2
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 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 For example:
18 ps -eZ | grep sosreport_t
20
24 The sosreport_t SELinux type can be entered via the sosreport_exec_t
25 file type.
26 The default entrypoint paths for the sosreport_t domain are the follow‐
28 ing:
29 /usr/sbin/sos, /usr/sbin/sosreport
31
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 sosreport policy is very flexible allowing users to setup their sosre‐
40 port processes in as secure a method as possible.
41 The following process types are defined for sosreport:
43 sosreport_t
45 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
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 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. Disabled by default.
64 setsebool -P deny_execmem 1
66 If you want to control the ability to mmap a low area of the address
70 space, as configured by /proc/sys/vm/mmap_min_addr, you must turn on
71 the mmap_low_allowed boolean. Disabled by default.
72 setsebool -P mmap_low_allowed 1
74 If you want to allow system to run with NIS, you must turn on the
78 nis_enabled boolean. Disabled by default.
79 setsebool -P nis_enabled 1
81 If you want to disable kernel module loading, you must turn on the se‐
85 cure_mode_insmod boolean. Disabled by default.
86 setsebool -P secure_mode_insmod 1
88 If you want to allow unconfined executables to make their heap memory
92 executable. Doing this is a really bad idea. Probably indicates a
93 badly coded executable, but could indicate an attack. This executable
94 should be reported in bugzilla, you must turn on the selinuxuser_ex‐
95 echeap boolean. Disabled by default.
96 setsebool -P selinuxuser_execheap 1
98 If you want to allow unconfined executables to make their stack exe‐
102 cutable. This should never, ever be necessary. Probably indicates a
103 badly coded executable, but could indicate an attack. This executable
104 should be reported in bugzilla, you must turn on the selinuxuser_exec‐
105 stack boolean. Enabled by default.
106 setsebool -P selinuxuser_execstack 1
108
112 The SELinux process type sosreport_t can manage files labeled with the
113 following file types. The paths listed are the default paths for these
114 file types. Note the processes UID still need to have DAC permissions.
115 file_type
117 all files on the system
119
122 SELinux requires files to have an extended attribute to define the file
123 type.
124 You can see the context of a file using the -Z option to ls
126 Policy governs the access confined processes have to these files.
128 SELinux sosreport policy is very flexible allowing users to setup their
129 sosreport processes in as secure a method as possible.
130 STANDARD FILE CONTEXT
132 SELinux defines the file context types for the sosreport, if you wanted
134 to store files with these types in a different paths, you need to exe‐
135 cute the semanage command to specify alternate labeling and then use
136 restorecon to put the labels on disk.
137 semanage fcontext -a -t sosreport_exec_t '/srv/sosreport/content(/.*)?'
139 restorecon -R -v /srv/mysosreport_content
140 Note: SELinux often uses regular expressions to specify labels that
142 match multiple files.
143 The following file types are defined for sosreport:
145 sosreport_exec_t
149 - Set files with the sosreport_exec_t type, if you want to transition
151 an executable to the sosreport_t domain.
152 Paths:
155 /usr/sbin/sos, /usr/sbin/sosreport
156 sosreport_tmp_t
159 - Set files with the sosreport_tmp_t type, if you want to store sosre‐
161 port temporary files in the /tmp directories.
162 sosreport_tmpfs_t
166 - Set files with the sosreport_tmpfs_t type, if you want to store sos‐
168 report files on a tmpfs file system.
169 sosreport_var_run_t
173 - Set files with the sosreport_var_run_t type, if you want to store the
175 sosreport files under the /run or /var/run directory.
176 Note: File context can be temporarily modified with the chcon command.
180 If you want to permanently change the file context you need to use the
181 semanage fcontext command. This will modify the SELinux labeling data‐
182 base. You will need to use restorecon to apply the labels.
183
186 semanage fcontext can also be used to manipulate default file context
187 mappings.
188 semanage permissive can also be used to manipulate whether or not a
190 process type is permissive.
191 semanage module can also be used to enable/disable/install/remove pol‐
193 icy modules.
194 semanage boolean can also be used to manipulate the booleans
196 system-config-selinux is a GUI tool available to customize SELinux pol‐
199 icy settings.
200
203 This manual page was auto-generated using sepolicy manpage .
204
207 selinux(8), sosreport(8), semanage(8), restorecon(8), chcon(1), sepol‐
208 icy(8), setsebool(8)
209sosreport 23-10-20 sosreport_selinux(8)