speech: Mask client identity when running the package manager call

Allow speech recognizers to list all the recognition services.

Bug: 210471821
Test: manual by reproducing the corresponding bug
Change-Id: If2dc9b81e26ca531cadd0ca25e207db036df9cdc

1 files changed, 11 insertions, 3 deletions

diff --git a/services/core/java/com/android/server/speech/SpeechRecognitionManagerServiceImpl.java b/services/core/java/com/android/server/speech/SpeechRecognitionManagerServiceImpl.java
index ae23b9e46d23..5db4a7b4a6f6 100644
--- a/services/core/java/com/android/server/speech/SpeechRecognitionManagerServiceImpl.java
+++ b/services/core/java/com/android/server/speech/SpeechRecognitionManagerServiceImpl.java
@@ -268,9 +268,17 @@ final class SpeechRecognitionManagerServiceImpl extends
     }
 
     private boolean componentMapsToRecognitionService(@NonNull ComponentName serviceComponent) {
-        List<ResolveInfo> resolveInfos =
-                getContext().getPackageManager().queryIntentServicesAsUser(
-                        new Intent(RecognitionService.SERVICE_INTERFACE), 0, getUserId());
+        List<ResolveInfo> resolveInfos;
+
+        final long identityToken = Binder.clearCallingIdentity();
+        try {
+            resolveInfos =
+                    getContext().getPackageManager().queryIntentServicesAsUser(
+                            new Intent(RecognitionService.SERVICE_INTERFACE), 0, getUserId());
+        } finally {
+            Binder.restoreCallingIdentity(identityToken);
+        }
+
         if (resolveInfos == null) {
             return false;
         }