From d9db861b6e4426d435e5f49bcb9384ec6f50c905 Mon Sep 17 00:00:00 2001
From: Aishwarya Mallampati <amallampati@google.com>
Date: Fri, 9 Feb 2024 18:12:42 +0000
Subject: Clear calling identity before calling getSubscriptionUserHandle

Bug: 320599071
Bug: 308033518
Test: Sending and receiving SMS/MMS,
      atest FrameworkTelephonyTests,
      atest CtsTelephonyTestCases
Change-Id: I84c74a81207d54f394721918e59eac2d89ef59e2
Merged-In: I84c74a81207d54f394721918e59eac2d89ef59e2
(cherry picked from commit 470051c41afa9846e58ebf230b2ce33236a74939)
---
 src/java/com/android/internal/telephony/SMSDispatcher.java | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/java/com/android/internal/telephony/SMSDispatcher.java b/src/java/com/android/internal/telephony/SMSDispatcher.java
index a78242ad5a..5df9f0890e 100644
--- a/src/java/com/android/internal/telephony/SMSDispatcher.java
+++ b/src/java/com/android/internal/telephony/SMSDispatcher.java
@@ -2466,7 +2466,13 @@ public abstract class SMSDispatcher extends Handler {
         /** Return if the SMS was originated from the default SMS application. */
         public boolean isFromDefaultSmsApplication(Context context) {
             if (mIsFromDefaultSmsApplication == null) {
-                UserHandle userHandle = TelephonyUtils.getSubscriptionUserHandle(context, mSubId);
+                UserHandle userHandle;
+                final long identity = Binder.clearCallingIdentity();
+                try {
+                    userHandle = TelephonyUtils.getSubscriptionUserHandle(context, mSubId);
+                } finally {
+                    Binder.restoreCallingIdentity(identity);
+                }
                 // Perform a lazy initialization, due to the cost of the operation.
                 mIsFromDefaultSmsApplication = SmsApplication.isDefaultSmsApplicationAsUser(context,
                                     getAppPackageName(), userHandle);
-- 
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