diff --git a/services/core/java/com/android/server/ConnectivityService.java b/services/core/java/com/android/server/ConnectivityService.java
index 8716101..3691a3a 100644
--- a/services/core/java/com/android/server/ConnectivityService.java
+++ b/services/core/java/com/android/server/ConnectivityService.java
@@ -3024,7 +3024,12 @@
         throwIfLockdownEnabled();
 
         synchronized(mVpns) {
-            return mVpns.get(userId).prepare(oldPackage, newPackage);
+            Vpn vpn = mVpns.get(userId);
+            if (vpn != null) {
+                return vpn.prepare(oldPackage, newPackage);
+            } else {
+                return false;
+            }
         }
     }
 
@@ -3046,7 +3051,10 @@
         enforceCrossUserPermission(userId);
 
         synchronized(mVpns) {
-            mVpns.get(userId).setPackageAuthorization(packageName, authorized);
+            Vpn vpn = mVpns.get(userId);
+            if (vpn != null) {
+                vpn.setPackageAuthorization(packageName, authorized);
+            }
         }
     }
 
@@ -3157,7 +3165,12 @@
     public VpnConfig getVpnConfig(int userId) {
         enforceCrossUserPermission(userId);
         synchronized(mVpns) {
-            return mVpns.get(userId).getVpnConfig();
+            Vpn vpn = mVpns.get(userId);
+            if (vpn != null) {
+                return vpn.getVpnConfig();
+            } else {
+                return null;
+            }
         }
     }