On 9/3/2020 10:02 AM, Yi-Hung Wei wrote:
On RHEL 8, a SELinux policy is missing when ovs-kmod-ctl use modprobe
to load kernel modules. This patch adds the missing permissions based
on /var/log/audit/audit.log
Example log of the AVC violations:
type=AVC msg=audit(1599075387.136:65): avc: denied { read } for
pid=1472 comm="modprobe" name="modules.alias.bin" dev="dm-0" ino=586629
scontext=system_u:system_r:openvswitch_load_module_t:s0
tcontext=system_u:object_r:modules_dep_t:s0 tclass=file permissive=0
type=AVC msg=audit(1599085253.148:45): avc: denied { open } for pid=1355
comm="modprobe" path="/usr/lib/modules/4.18.0-193.el8.x86_64/modules.dep.bin"
dev="dm-0" ino=624258 scontext=system_u:system_r:openvswitch_load_module_t:s0
tcontext=unconfined_u:object_r:modules_dep_t:s0 tclass=file permissive=0
VMWare-BZ: #2633569
Signed-off-by: Yi-Hung Wei <[email protected]>
---
selinux/openvswitch-custom.te.in | 2 ++
1 file changed, 2 insertions(+)
diff --git a/selinux/openvswitch-custom.te.in b/selinux/openvswitch-custom.te.in
index 2adaf231fe63..beb0ab0d6612 100644
--- a/selinux/openvswitch-custom.te.in
+++ b/selinux/openvswitch-custom.te.in
@@ -19,6 +19,7 @@ require {
type kernel_t;
type hostname_exec_t;
type modules_conf_t;
+ type modules_dep_t;
type modules_object_t;
type passwd_file_t;
type plymouth_exec_t;
@@ -121,6 +122,7 @@ allow openvswitch_load_module_t insmod_exec_t:file {
execute execute_no_trans ge
allow openvswitch_load_module_t kernel_t:system module_request;
allow openvswitch_load_module_t modules_conf_t:dir { getattr open read search
};
allow openvswitch_load_module_t modules_conf_t:file { getattr open read };
+allow openvswitch_load_module_t modules_dep_t:file { getattr map open read };
allow openvswitch_load_module_t modules_object_t:file { map getattr open read
};
allow openvswitch_load_module_t modules_object_t:dir { getattr open read
search };
allow openvswitch_load_module_t openvswitch_load_module_exec_t:file {
entrypoint };
Acked-by: Greg Rose <[email protected]>
_______________________________________________
dev mailing list
[email protected]
https://mail.openvswitch.org/mailman/listinfo/ovs-dev
