diff --git a/private/app_neverallows.te b/private/app_neverallows.te
index e5c6aee..0c8bd4c 100644
--- a/private/app_neverallows.te
+++ b/private/app_neverallows.te
@@ -238,15 +238,6 @@
 # Untrusted apps are not allowed to use cgroups.
 neverallow all_untrusted_apps cgroup:file *;
 
-# Untrusted apps targetting >= Q are not allowed to open /dev/ashmem directly.
-# They must use ASharedMemory NDK API instead.
-neverallow {
-  all_untrusted_apps
-  -ephemeral_app
-  -untrusted_app_25
-  -untrusted_app_27
-} ashmem_device:chr_file open;
-
 # /mnt/sdcard symlink was supposed to have been removed in Gingerbread. Apps
 # must not use it.
 neverallow {
diff --git a/private/isolated_app.te b/private/isolated_app.te
index 50cbd8c..94b58de 100644
--- a/private/isolated_app.te
+++ b/private/isolated_app.te
@@ -64,8 +64,6 @@
 # debuggable.
 can_profile_heap(isolated_app)
 
-allow isolated_app ashmem_device:chr_file { getattr read ioctl lock map append write };
-
 #####
 ##### Neverallow
 #####
diff --git a/private/mediaprovider.te b/private/mediaprovider.te
index 6926412..5050e1a 100644
--- a/private/mediaprovider.te
+++ b/private/mediaprovider.te
@@ -45,5 +45,3 @@
 # MtpServer sets sys.usb.ffs.mtp.ready
 set_prop(mediaprovider, ffs_prop)
 set_prop(mediaprovider, exported_ffs_prop)
-
-allow mediaprovider ashmem_device:chr_file { getattr read ioctl lock map append write };
diff --git a/private/untrusted_app_all.te b/private/untrusted_app_all.te
index 249c33b..116d761 100644
--- a/private/untrusted_app_all.te
+++ b/private/untrusted_app_all.te
@@ -176,6 +176,3 @@
   allow untrusted_app_all debugfs_kcov:file rw_file_perms;
   allowxperm untrusted_app_all debugfs_kcov:file ioctl { KCOV_INIT_TRACE KCOV_ENABLE KCOV_DISABLE };
 ')
-
-# Allow (rw_file_perms - open) access to /dev/ashmem.
-allow untrusted_app_all ashmem_device:chr_file { getattr read ioctl lock map append write };
diff --git a/public/domain.te b/public/domain.te
index 79a9ed4..9ebe4e0 100644
--- a/public/domain.te
+++ b/public/domain.te
@@ -70,17 +70,11 @@
 allow domain owntty_device:chr_file rw_file_perms;
 allow domain null_device:chr_file rw_file_perms;
 allow domain zero_device:chr_file rw_file_perms;
-allow {
-  domain
-  # TODO(b/113362644): route coredomain to libcutils.
-  #-coredomain
-  -mediaprovider
-  -ephemeral_app
-  -isolated_app
-  -untrusted_app_all
-} ashmem_device:chr_file rw_file_perms;
 
-# This device is used by libcutils.
+# /dev/ashmem is being deprecated by means of constraining and eventually
+# removing all "open" permissions. We preserve the other permissions.
+allow domain ashmem_device:chr_file { getattr read ioctl lock map append write };
+# This device is used by libcutils, which is accessible to everyone.
 allow domain ashmem_libcutils_device:chr_file rw_file_perms;
 
 # /dev/binder can be accessed by ... everyone! :)
@@ -1380,3 +1374,12 @@
   -hal_codec2_server
   -hal_omx_server
 } hal_codec2_hwservice:hwservice_manager add;
+
+# Only apps targetting < Q are allowed to open /dev/ashmem directly.
+# Apps must use ASharedMemory NDK API. Native code must use libcutils API.
+neverallow {
+  domain
+  -ephemeral_app # We don't distinguish ephemeral apps based on target API.
+  -untrusted_app_25
+  -untrusted_app_27
+} ashmem_device:chr_file open;
diff --git a/public/init.te b/public/init.te
index 3a59641..06a33a6 100644
--- a/public/init.te
+++ b/public/init.te
@@ -286,7 +286,6 @@
 allow init { fs_type -contextmount_type -sdcard_type -rootfs }:dir  { open read setattr search };
 
 allow init {
-  ashmem_device
   binder_device
   console_device
   devpts