1depmod_selinux(8) SELinux Policy depmod depmod_selinux(8)
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6 depmod_selinux - Security Enhanced Linux Policy for the depmod pro‐
7 cesses
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10 Security-Enhanced Linux secures the depmod processes via flexible
11 mandatory access control.
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13 The depmod processes execute with the depmod_t SELinux type. You can
14 check if you have these processes running by executing the ps command
15 with the -Z qualifier.
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17 For example:
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19 ps -eZ | grep depmod_t
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24 The depmod_t SELinux type can be entered via the file_type, unla‐
25 beled_t, proc_type, depmod_exec_t, filesystem_type, mtrr_device_t,
26 sysctl_type file types.
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28 The default entrypoint paths for the depmod_t domain are the following:
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30 all files on the system, /sbin/depmod.*, /dev/cpu/mtrr
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33 SELinux defines process types (domains) for each process running on the
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36 You can see the context of a process using the -Z option to ps
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38 Policy governs the access confined processes have to files. SELinux
39 depmod policy is very flexible allowing users to setup their depmod
40 processes in as secure a method as possible.
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42 The following process types are defined for depmod:
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44 depmod_t
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46 Note: semanage permissive -a depmod_t can be used to make the process
47 type depmod_t permissive. SELinux does not deny access to permissive
48 process types, but the AVC (SELinux denials) messages are still gener‐
49 ated.
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53 SELinux policy is customizable based on least access required. depmod
54 policy is extremely flexible and has several booleans that allow you to
55 manipulate the policy and run depmod with the tightest access possible.
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59 If you want to allow all daemons the ability to read/write terminals,
60 you must turn on the allow_daemons_use_tty boolean. Disabled by
61 default.
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63 setsebool -P allow_daemons_use_tty 1
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67 If you want to allow all domains to use other domains file descriptors,
68 you must turn on the allow_domain_fd_use boolean. Enabled by default.
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70 setsebool -P allow_domain_fd_use 1
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74 If you want to allow unconfined executables to make their heap memory
75 executable. Doing this is a really bad idea. Probably indicates a
76 badly coded executable, but could indicate an attack. This executable
77 should be reported in bugzilla, you must turn on the allow_execheap
78 boolean. Disabled by default.
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80 setsebool -P allow_execheap 1
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84 If you want to allow unconfined executables to map a memory region as
85 both executable and writable, this is dangerous and the executable
86 should be reported in bugzilla), you must turn on the allow_execmem
87 boolean. Enabled by default.
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89 setsebool -P allow_execmem 1
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93 If you want to allow all unconfined executables to use libraries
94 requiring text relocation that are not labeled textrel_shlib_t), you
95 must turn on the allow_execmod boolean. Enabled by default.
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97 setsebool -P allow_execmod 1
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101 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 allow_execstack
105 boolean. Enabled by default.
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107 setsebool -P allow_execstack 1
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111 If you want to allow sysadm to debug or ptrace all processes, you must
112 turn on the allow_ptrace boolean. Disabled by default.
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114 setsebool -P allow_ptrace 1
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118 If you want to allow all domains to have the kernel load modules, you
119 must turn on the domain_kernel_load_modules boolean. Disabled by
120 default.
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122 setsebool -P domain_kernel_load_modules 1
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126 If you want to allow all domains to execute in fips_mode, you must turn
127 on the fips_mode boolean. Enabled by default.
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129 setsebool -P fips_mode 1
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133 If you want to enable reading of urandom for all domains, you must turn
134 on the global_ssp boolean. Disabled by default.
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136 setsebool -P global_ssp 1
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140 If you want to allow certain domains to map low memory in the kernel,
141 you must turn on the mmap_low_allowed boolean. Disabled by default.
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143 setsebool -P mmap_low_allowed 1
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147 If you want to boolean to determine whether the system permits loading
148 policy, setting enforcing mode, and changing boolean values. Set this
149 to true and you have to reboot to set it back, you must turn on the
150 secure_mode_policyload boolean. Disabled by default.
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152 setsebool -P secure_mode_policyload 1
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156 If you want to support NFS home directories, you must turn on the
157 use_nfs_home_dirs boolean. Disabled by default.
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159 setsebool -P use_nfs_home_dirs 1
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163 If you want to support SAMBA home directories, you must turn on the
164 use_samba_home_dirs boolean. Disabled by default.
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166 setsebool -P use_samba_home_dirs 1
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170 If you want to support X userspace object manager, you must turn on the
171 xserver_object_manager boolean. Disabled by default.
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173 setsebool -P xserver_object_manager 1
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178 The SELinux process type depmod_t can manage files labeled with the
179 following file types. The paths listed are the default paths for these
180 file types. Note the processes UID still need to have DAC permissions.
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182 file_type
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184 all files on the system
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188 SELinux requires files to have an extended attribute to define the file
189 type.
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191 You can see the context of a file using the -Z option to ls
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193 Policy governs the access confined processes have to these files.
194 SELinux depmod policy is very flexible allowing users to setup their
195 depmod processes in as secure a method as possible.
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197 The following file types are defined for depmod:
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201 depmod_exec_t
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203 - Set files with the depmod_exec_t type, if you want to transition an
204 executable to the depmod_t domain.
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208 Note: File context can be temporarily modified with the chcon command.
209 If you want to permanently change the file context you need to use the
210 semanage fcontext command. This will modify the SELinux labeling data‐
211 base. You will need to use restorecon to apply the labels.
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215 semanage fcontext can also be used to manipulate default file context
216 mappings.
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218 semanage permissive can also be used to manipulate whether or not a
219 process type is permissive.
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221 semanage module can also be used to enable/disable/install/remove pol‐
222 icy modules.
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224 semanage boolean can also be used to manipulate the booleans
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227 system-config-selinux is a GUI tool available to customize SELinux pol‐
228 icy settings.
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232 This manual page was auto-generated using sepolicy manpage .
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236 selinux(8), depmod(8), semanage(8), restorecon(8), chcon(1) , setse‐
237 bool(8)
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241depmod 15-06-03 depmod_selinux(8)