diff --git a/private/system_server.te b/private/system_server.te
index 8191b6a..c29661e 100644
--- a/private/system_server.te
+++ b/private/system_server.te
@@ -1012,6 +1012,9 @@
 
 get_prop(system_server, wifi_config_prop)
 
+# Only system server can access BINDER_FREEZE
+allowxperm system_server binder_device:chr_file ioctl { BINDER_FREEZE };
+
 ###
 ### Neverallow rules
 ###
@@ -1230,3 +1233,7 @@
   -dumpstate
   -system_server
 } wifi_config_prop:file no_rw_file_perms;
+
+# BINDER_FREEZE is used to block ipc transactions to frozen processes, so it
+# can be accessed by system_server only (b/143717177)
+neverallowxperm { domain -system_server } binder_device:chr_file ioctl { BINDER_FREEZE };