commit 12c763e7c0af4dec32ea3a9f0b91694450d93bd1
author Tony Mak <tonymak@google.com> Thu Dec 14 12:40:07 2017 +0000
committer hamzeh <hamzeh@google.com> Tue May 15 17:35:10 2018 -0700
tree 15678cd1f2e1fffe9fdae310bbfdc0cfda83bbe1
parent 3c6f4eaaf96c4be2969d02853b433e73b73cfa4c

clearCallingIdentity before calling into getPackageUidAsUser

Fix: 70585244
Bug: 69981755

Test: Enable any accessibility service -> inflate work profile
      -> Tap on any work app -> no longer crash

Test: cts-tradefed run cts-dev --module DevicePolicyManager --test com.android.cts.devicepolicy.CrossProfileAppsHostSideTest.testPrimaryUserToManagedProfile
Change-Id: I80d18f4e2ab76a228cb0aa2c8312c323a9b5c84d
(cherry picked from commit 857326e3731939f6ec7979e1d86585bf0ea484f4)

services/accessibility/java/com/android/server/accessibility/AccessibilityManagerService.java

diff --git a/services/accessibility/java/com/android/server/accessibility/AccessibilityManagerService.java b/services/accessibility/java/com/android/server/accessibility/AccessibilityManagerService.java
index d0d65d9..8b4076a 100644
--- a/services/accessibility/java/com/android/server/accessibility/AccessibilityManagerService.java
+++ b/services/accessibility/java/com/android/server/accessibility/AccessibilityManagerService.java
@@ -4566,11 +4566,14 @@
         }
 
         private boolean isValidPackageForUid(String packageName, int uid) {
+            final long token = Binder.clearCallingIdentity();
             try {
                 return uid == mPackageManager.getPackageUid(
                         packageName, UserHandle.getUserId(uid));
             } catch (PackageManager.NameNotFoundException e) {
                 return false;
+            } finally {
+                Binder.restoreCallingIdentity(token);
             }
         }