diff --git a/services/core/java/com/android/server/pm/PackageManagerService.java b/services/core/java/com/android/server/pm/PackageManagerService.java
index b9dfc21..4752ace 100644
--- a/services/core/java/com/android/server/pm/PackageManagerService.java
+++ b/services/core/java/com/android/server/pm/PackageManagerService.java
@@ -7397,8 +7397,10 @@
 
         if (replace) {
             ps.installPermissionsFixed = false;
-            origPermissions = new PermissionsState(permissionsState);
-            permissionsState.reset();
+            if (!ps.isSharedUser()) {
+                origPermissions = new PermissionsState(permissionsState);
+                permissionsState.reset();
+            }
         }
 
         permissionsState.setGlobalGids(mGlobalGids);
diff --git a/services/core/java/com/android/server/pm/PackageSetting.java b/services/core/java/com/android/server/pm/PackageSetting.java
index a3f4c0b..e7c0ef7 100644
--- a/services/core/java/com/android/server/pm/PackageSetting.java
+++ b/services/core/java/com/android/server/pm/PackageSetting.java
@@ -74,4 +74,8 @@
     public boolean isSystem() {
         return (pkgFlags & ApplicationInfo.FLAG_SYSTEM) != 0;
     }
+
+    public boolean isSharedUser() {
+        return sharedUser != null;
+    }
 }