diff --git a/src/com/android/phone/PhoneInterfaceManager.java b/src/com/android/phone/PhoneInterfaceManager.java
index d0ed9bd..2061796 100755
--- a/src/com/android/phone/PhoneInterfaceManager.java
+++ b/src/com/android/phone/PhoneInterfaceManager.java
@@ -113,6 +113,7 @@
 import com.android.ims.ImsException;
 import com.android.ims.ImsManager;
 import com.android.ims.internal.IImsServiceFeatureCallback;
+import com.android.internal.annotations.VisibleForTesting;
 import com.android.internal.telephony.CallManager;
 import com.android.internal.telephony.CallStateException;
 import com.android.internal.telephony.CarrierInfoManager;
@@ -1319,7 +1320,8 @@
     }
 
     /** Private constructor; @see init() */
-    private PhoneInterfaceManager(PhoneGlobals app) {
+    @VisibleForTesting
+    /* package */ PhoneInterfaceManager(PhoneGlobals app) {
         mApp = app;
         mCM = PhoneGlobals.getInstance().mCM;
         mUserManager = (UserManager) app.getSystemService(Context.USER_SERVICE);
@@ -6325,6 +6327,15 @@
 
     @Override
     public List<UiccCardInfo> getUiccCardsInfo(String callingPackage) {
+        try {
+            PackageManager pm = mApp.getPackageManager();
+            if (Binder.getCallingUid() != pm.getPackageUid(callingPackage, 0)) {
+                throw new SecurityException("Calling package " + callingPackage + " does not match "
+                        + "calling UID");
+            }
+        } catch (PackageManager.NameNotFoundException e) {
+            throw new SecurityException("Invalid calling package. e=" + e);
+        }
         boolean hasReadPermission = false;
         try {
             enforceReadPrivilegedPermission("getUiccCardsInfo");