1virt_qemu_ga_unconfinSeEdL_isneulxinPuoxl(i8c)y virt_qemu_vgiar_tu_nqceomnuf_ignae_dunconfined_selinux(8)
2
6 virt_qemu_ga_unconfined_selinux - Security Enhanced Linux Policy for
7 the virt_qemu_ga_unconfined processes
8
10 Security-Enhanced Linux secures the virt_qemu_ga_unconfined processes
11 via flexible mandatory access control.
12 The virt_qemu_ga_unconfined processes execute with the virt_qemu_ga_un‐
14 confined_t SELinux type. You can check if you have these processes run‐
15 ning by executing the ps command with the -Z qualifier.
16 For example:
18 ps -eZ | grep virt_qemu_ga_unconfined_t
20
24 The virt_qemu_ga_unconfined_t SELinux type can be entered via the
25 virt_qemu_ga_unconfined_exec_t file type.
26 The default entrypoint paths for the virt_qemu_ga_unconfined_t domain
28 are the following:
29 /etc/qemu-ga/fsfreeze-hook.d(/.*)?, /var/run/qemu-ga/fsfreeze-
31 hook.d(/.*)?, /usr/libexec/qemu-ga/fsfreeze-hook.d(/.*)?
32
34 SELinux defines process types (domains) for each process running on the
35 system
36 You can see the context of a process using the -Z option to ps
38 Policy governs the access confined processes have to files. SELinux
40 virt_qemu_ga_unconfined policy is very flexible allowing users to setup
41 their virt_qemu_ga_unconfined processes in as secure a method as possi‐
42 ble.
43 The following process types are defined for virt_qemu_ga_unconfined:
45 virt_qemu_ga_unconfined_t
47 Note: semanage permissive -a virt_qemu_ga_unconfined_t can be used to
49 make the process type virt_qemu_ga_unconfined_t permissive. SELinux
50 does not deny access to permissive process types, but the AVC (SELinux
51 denials) messages are still generated.
52
55 SELinux policy is customizable based on least access required.
56 virt_qemu_ga_unconfined policy is extremely flexible and has several
57 booleans that allow you to manipulate the policy and run
58 virt_qemu_ga_unconfined with the tightest access possible.
59 If you want to deny user domains applications to map a memory region as
63 both executable and writable, this is dangerous and the executable
64 should be reported in bugzilla, you must turn on the deny_execmem bool‐
65 ean. Disabled by default.
66 setsebool -P deny_execmem 1
68 If you want to control the ability to mmap a low area of the address
72 space, as configured by /proc/sys/vm/mmap_min_addr, you must turn on
73 the mmap_low_allowed boolean. Disabled by default.
74 setsebool -P mmap_low_allowed 1
76 If you want to disable kernel module loading, you must turn on the se‐
80 cure_mode_insmod boolean. Disabled by default.
81 setsebool -P secure_mode_insmod 1
83 If you want to allow unconfined executables to make their heap memory
87 executable. Doing this is a really bad idea. Probably indicates a
88 badly coded executable, but could indicate an attack. This executable
89 should be reported in bugzilla, you must turn on the selinuxuser_ex‐
90 echeap boolean. Disabled by default.
91 setsebool -P selinuxuser_execheap 1
93 If you want to allow unconfined executables to make their stack exe‐
97 cutable. This should never, ever be necessary. Probably indicates a
98 badly coded executable, but could indicate an attack. This executable
99 should be reported in bugzilla, you must turn on the selinuxuser_exec‐
100 stack boolean. Enabled by default.
101 setsebool -P selinuxuser_execstack 1
103
107 The SELinux process type virt_qemu_ga_unconfined_t can manage files la‐
108 beled with the following file types. The paths listed are the default
109 paths for these file types. Note the processes UID still need to have
110 DAC permissions.
111 file_type
113 all files on the system
115
118 SELinux requires files to have an extended attribute to define the file
119 type.
120 You can see the context of a file using the -Z option to ls
122 Policy governs the access confined processes have to these files.
124 SELinux virt_qemu_ga_unconfined policy is very flexible allowing users
125 to setup their virt_qemu_ga_unconfined processes in as secure a method
126 as possible.
127 STANDARD FILE CONTEXT
129 SELinux defines the file context types for the virt_qemu_ga_unconfined,
131 if you wanted to store files with these types in a different paths, you
132 need to execute the semanage command to specify alternate labeling and
133 then use restorecon to put the labels on disk.
134 semanage fcontext -a -t virt_qemu_ga_unconfined_exec_t
136 '/srv/virt_qemu_ga_unconfined/content(/.*)?'
137 restorecon -R -v /srv/myvirt_qemu_ga_unconfined_content
138 Note: SELinux often uses regular expressions to specify labels that
140 match multiple files.
141 The following file types are defined for virt_qemu_ga_unconfined:
143 virt_qemu_ga_unconfined_exec_t
147 - Set files with the virt_qemu_ga_unconfined_exec_t type, if you want
149 to transition an executable to the virt_qemu_ga_unconfined_t domain.
150 Paths:
153 /etc/qemu-ga/fsfreeze-hook.d(/.*)?, /var/run/qemu-ga/fsfreeze-
154 hook.d(/.*)?, /usr/libexec/qemu-ga/fsfreeze-hook.d(/.*)?
155 Note: File context can be temporarily modified with the chcon command.
158 If you want to permanently change the file context you need to use the
159 semanage fcontext command. This will modify the SELinux labeling data‐
160 base. You will need to use restorecon to apply the labels.
161
164 semanage fcontext can also be used to manipulate default file context
165 mappings.
166 semanage permissive can also be used to manipulate whether or not a
168 process type is permissive.
169 semanage module can also be used to enable/disable/install/remove pol‐
171 icy modules.
172 semanage boolean can also be used to manipulate the booleans
174 system-config-selinux is a GUI tool available to customize SELinux pol‐
177 icy settings.
178
181 This manual page was auto-generated using sepolicy manpage .
182
185 selinux(8), virt_qemu_ga_unconfined(8), semanage(8), restorecon(8),
186 chcon(1), sepolicy(8), setsebool(8)
187virt_qemu_ga_unconfined 23-10-20 virt_qemu_ga_unconfined_selinux(8)