diff --git a/apex/Android.bp b/apex/Android.bp
index faff4a6..bddb639 100644
--- a/apex/Android.bp
+++ b/apex/Android.bp
@@ -244,3 +244,10 @@
     "com.android.car.framework-file_contexts",
   ],
 }
+
+filegroup {
+  name: "com.android.supplementalprocess-file_contexts",
+  srcs: [
+    "com.android.supplementalprocess-file_contexts",
+  ],
+}
diff --git a/apex/com.android.supplementalprocess-file_contexts b/apex/com.android.supplementalprocess-file_contexts
new file mode 100644
index 0000000..9398505
--- /dev/null
+++ b/apex/com.android.supplementalprocess-file_contexts
@@ -0,0 +1 @@
+(/.*)?           u:object_r:system_file:s0
diff --git a/private/compat/31.0/31.0.ignore.cil b/private/compat/31.0/31.0.ignore.cil
index f9645f4..e37773f 100644
--- a/private/compat/31.0/31.0.ignore.cil
+++ b/private/compat/31.0/31.0.ignore.cil
@@ -8,6 +8,7 @@
     artd_service
     attestation_verification_service
     camera2_extensions_prop
+    communal_manager_service
     device_config_nnapi_native_prop
     extra_free_kbytes
     extra_free_kbytes_exec
diff --git a/private/gmscore_app.te b/private/gmscore_app.te
index 799d7ff..427e7d8 100644
--- a/private/gmscore_app.te
+++ b/private/gmscore_app.te
@@ -6,8 +6,6 @@
 app_domain(gmscore_app)
 
 allow gmscore_app sysfs_type:dir search;
-# Read access to /sys/class/net/wlan*/address
-r_dir_file(gmscore_app, sysfs_net)
 # Read access to /sys/block/zram*/mm_stat
 r_dir_file(gmscore_app, sysfs_zram)
 
@@ -54,6 +52,8 @@
 dontaudit gmscore_app sysfs_android_usb:file r_file_perms;
 dontaudit gmscore_app sysfs_dm:file r_file_perms;
 dontaudit gmscore_app sysfs_loop:file r_file_perms;
+dontaudit gmscore_app sysfs_net:file r_file_perms;
+dontaudit gmscore_app sysfs_net:dir r_dir_perms;
 dontaudit gmscore_app { wifi_prop wifi_hal_prop }:file r_file_perms;
 dontaudit gmscore_app mirror_data_file:dir search;
 dontaudit gmscore_app mnt_vendor_file:dir search;
@@ -142,3 +142,24 @@
 
 # b/186488185: Allow GMSCore to read dck properties
 get_prop(gmscore_app, dck_prop)
+
+# Do not allow getting permission-protected network information from sysfs.
+neverallow gmscore_app sysfs_net:file *;
+
+# Restrict socket ioctls. Either 1. disallow privileged ioctls, 2. disallow the
+# ioctl permission, or 3. disallow the socket class.
+neverallowxperm gmscore_app domain:{ icmp_socket rawip_socket tcp_socket udp_socket } ioctl priv_sock_ioctls;
+neverallow gmscore_app *:{ netlink_route_socket netlink_selinux_socket } ioctl;
+neverallow gmscore_app *:{
+  socket netlink_socket packet_socket key_socket appletalk_socket
+  netlink_tcpdiag_socket netlink_nflog_socket
+  netlink_xfrm_socket netlink_audit_socket
+  netlink_dnrt_socket netlink_kobject_uevent_socket tun_socket
+  netlink_iscsi_socket netlink_fib_lookup_socket netlink_connector_socket
+  netlink_netfilter_socket netlink_generic_socket netlink_scsitransport_socket
+  netlink_rdma_socket netlink_crypto_socket sctp_socket
+  ax25_socket ipx_socket netrom_socket atmpvc_socket x25_socket rose_socket decnet_socket
+  atmsvc_socket rds_socket irda_socket pppox_socket llc_socket can_socket tipc_socket
+  bluetooth_socket iucv_socket rxrpc_socket isdn_socket phonet_socket ieee802154_socket caif_socket
+  alg_socket nfc_socket kcm_socket qipcrtr_socket smc_socket xdp_socket
+} *;
diff --git a/private/priv_app.te b/private/priv_app.te
index 3ceb7a3..72e1c91 100644
--- a/private/priv_app.te
+++ b/private/priv_app.te
@@ -98,16 +98,11 @@
 }:file r_file_perms;
 
 allow priv_app sysfs_type:dir search;
-# Read access to /sys/class/net/wlan*/address
-r_dir_file(priv_app, sysfs_net)
 # Read access to /sys/block/zram*/mm_stat
 r_dir_file(priv_app, sysfs_zram)
 
 r_dir_file(priv_app, rootfs)
 
-# access the mac address
-allowxperm priv_app self:udp_socket ioctl SIOCGIFHWADDR;
-
 # Allow com.android.vending to communicate with statsd.
 binder_call(priv_app, statsd)
 
@@ -260,3 +255,24 @@
 
 # Do not follow untrusted app provided symlinks
 neverallow priv_app app_data_file:lnk_file { open read getattr };
+
+# Do not allow getting permission-protected network information from sysfs.
+neverallow priv_app sysfs_net:file *;
+
+# Restrict socket ioctls. Either 1. disallow privileged ioctls, 2. disallow the
+# ioctl permission, or 3. disallow the socket class.
+neverallowxperm priv_app domain:{ icmp_socket rawip_socket tcp_socket udp_socket } ioctl priv_sock_ioctls;
+neverallow priv_app *:{ netlink_route_socket netlink_selinux_socket } ioctl;
+neverallow priv_app *:{
+  socket netlink_socket packet_socket key_socket appletalk_socket
+  netlink_tcpdiag_socket netlink_nflog_socket
+  netlink_xfrm_socket netlink_audit_socket
+  netlink_dnrt_socket netlink_kobject_uevent_socket tun_socket
+  netlink_iscsi_socket netlink_fib_lookup_socket netlink_connector_socket
+  netlink_netfilter_socket netlink_generic_socket netlink_scsitransport_socket
+  netlink_rdma_socket netlink_crypto_socket sctp_socket
+  ax25_socket ipx_socket netrom_socket atmpvc_socket x25_socket rose_socket decnet_socket
+  atmsvc_socket rds_socket irda_socket pppox_socket llc_socket can_socket tipc_socket
+  bluetooth_socket iucv_socket rxrpc_socket isdn_socket phonet_socket ieee802154_socket caif_socket
+  alg_socket nfc_socket kcm_socket qipcrtr_socket smc_socket xdp_socket
+} *;
diff --git a/private/service.te b/private/service.te
index 2ab6335..56c78e8 100644
--- a/private/service.te
+++ b/private/service.te
@@ -1,5 +1,6 @@
 type attention_service,             system_server_service, service_manager_type;
 type compos_service,                service_manager_type;
+type communal_manager_service,      app_api_service, system_server_service, service_manager_type;
 type dynamic_system_service,        system_api_service, system_server_service, service_manager_type;
 type gsi_service,                   service_manager_type;
 type incidentcompanion_service,     system_api_service, system_server_service, service_manager_type;
diff --git a/private/service_contexts b/private/service_contexts
index 50002d4..daad338 100644
--- a/private/service_contexts
+++ b/private/service_contexts
@@ -88,6 +88,7 @@
 clipboard                                 u:object_r:clipboard_service:s0
 com.android.net.IProxyService             u:object_r:IProxyService_service:s0
 companiondevice                           u:object_r:companion_device_service:s0
+communal_manager                          u:object_r:communal_manager_service:s0
 platform_compat                           u:object_r:platform_compat_service:s0
 platform_compat_native                    u:object_r:platform_compat_service:s0
 connectivity                              u:object_r:connectivity_service:s0