Merge "Enforce MediaButtonReceiver ComponentName belongs to app"

1 files changed, 10 insertions, 0 deletions

diff --git a/services/core/java/com/android/server/media/MediaSessionRecord.java b/services/core/java/com/android/server/media/MediaSessionRecord.java
index 34cd6a012925..28c7a39ef726 100644
--- a/services/core/java/com/android/server/media/MediaSessionRecord.java
+++ b/services/core/java/com/android/server/media/MediaSessionRecord.java
@@ -50,6 +50,8 @@ import android.os.Process;
 import android.os.RemoteException;
 import android.os.ResultReceiver;
 import android.os.SystemClock;
+import android.text.TextUtils;
+import android.util.EventLog;
 import android.util.Log;
 import android.view.KeyEvent;
 
@@ -932,6 +934,14 @@ public class MediaSessionRecord implements IBinder.DeathRecipient, MediaSessionR
         public void setMediaButtonBroadcastReceiver(ComponentName receiver) throws RemoteException {
             final long token = Binder.clearCallingIdentity();
             try {
+                //mPackageName has been verified in MediaSessionService.enforcePackageName().
+                if (receiver != null && !TextUtils.equals(
+                        mPackageName, receiver.getPackageName())) {
+                    EventLog.writeEvent(0x534e4554, "238177121", -1, ""); // SafetyNet logging.
+                    throw new IllegalArgumentException("receiver does not belong to "
+                            + "package name provided to MediaSessionRecord. Pkg = " + mPackageName
+                            + ", Receiver Pkg = " + receiver.getPackageName());
+                }
                 if ((mPolicies & MediaSessionPolicyProvider.SESSION_POLICY_IGNORE_BUTTON_RECEIVER)
                         != 0) {
                     return;