Merge "Added check for user info is not null"

core/java/android/content/Intent.java

@@ -3920,6 +3920,12 @@ public class Intent implements Parcelable, Cloneable {
      * that has been started.  This is sent as a foreground
      * broadcast, since it is part of a visible user interaction; be as quick
      * as possible when handling it.
+     *
+     * <p>
+     * <b>Note:</b> The user's actual state might have changed by the time the broadcast is
+     * received. For example, the user could have been removed, started or stopped already,
+     * regardless of which broadcast you receive. Because of that, receivers should always check
+     * the current state of the user.
      * @hide
      */
     public static final String ACTION_USER_STARTED =
@@ -3937,6 +3943,12 @@ public class Intent implements Parcelable, Cloneable {
      * {@link #ACTION_USER_STOPPING}.  It is <b>not</b> generally safe to use with
      * other user state broadcasts since those are foreground broadcasts so can
      * execute in a different order.
+     *
+     * <p>
+     * <b>Note:</b> The user's actual state might have changed by the time the broadcast is
+     * received. For example, the user could have been removed, started or stopped already,
+     * regardless of which broadcast you receive. Because of that, receivers should always check
+     * the current state of the user.
      * @hide
      */
     public static final String ACTION_USER_STARTING =
@@ -3955,6 +3967,11 @@ public class Intent implements Parcelable, Cloneable {
      * {@link #ACTION_USER_STARTING}.  It is <b>not</b> generally safe to use with
      * other user state broadcasts since those are foreground broadcasts so can
      * execute in a different order.
+     * <p>
+     * <b>Note:</b> The user's actual state might have changed by the time the broadcast is
+     * received. For example, the user could have been removed, started or stopped already,
+     * regardless of which broadcast you receive. Because of that, receivers should always check
+     * the current state of the user.
      * @hide
      */
     public static final String ACTION_USER_STOPPING =
@@ -3967,6 +3984,12 @@ public class Intent implements Parcelable, Cloneable {
      * specific package.  This is only sent to registered receivers, not manifest
      * receivers.  It is sent to all running users <em>except</em> the one that
      * has just been stopped (which is no longer running).
+     *
+     * <p>
+     * <b>Note:</b> The user's actual state might have changed by the time the broadcast is
+     * received. For example, the user could have been removed, started or stopped already,
+     * regardless of which broadcast you receive. Because of that, receivers should always check
+     * the current state of the user.
      * @hide
      */
     @TestApi
@@ -3999,6 +4022,12 @@ public class Intent implements Parcelable, Cloneable {
      * It is sent to all running users.
      * You must hold
      * {@link android.Manifest.permission#MANAGE_USERS} to receive this broadcast.
+     *
+     * <p>
+     * <b>Note:</b> The user's actual state might have changed by the time the broadcast is
+     * received. For example, the user could have been removed, started or stopped already,
+     * regardless of which broadcast you receive. Because of that, receivers should always check
+     * the current state of the user.
      * @hide
      */
     @SystemApi
@@ -4009,6 +4038,12 @@ public class Intent implements Parcelable, Cloneable {
      * Broadcast Action: Sent when the credential-encrypted private storage has
      * become unlocked for the target user. This is only sent to registered
      * receivers, not manifest receivers.
+     *
+     * <p>
+     * <b>Note:</b> The user's actual state might have changed by the time the broadcast is
+     * received. For example, the user could have been removed, started or stopped already,
+     * regardless of which broadcast you receive. Because of that, receivers should always check
+     * the current state of the user.
      */
     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
     public static final String ACTION_USER_UNLOCKED = "android.intent.action.USER_UNLOCKED";

services/core/java/com/android/server/VpnManagerService.java

@@ -28,6 +28,7 @@ import android.content.Intent;
 import android.content.IntentFilter;
 import android.content.pm.PackageManager;
 import android.content.pm.PackageManager.NameNotFoundException;
+import android.content.pm.UserInfo;
 import android.net.ConnectivityManager;
 import android.net.INetd;
 import android.net.IVpnManager;
@@ -775,6 +776,12 @@ public class VpnManagerService extends IVpnManager.Stub {
     };
 
     private void onUserStarted(int userId) {
+        UserInfo user = mUserManager.getUserInfo(userId);
+        if (user == null) {
+            logw("Started user doesn't exist. UserId: " + userId);
+            return;
+        }
+
         synchronized (mVpns) {
             Vpn userVpn = mVpns.get(userId);
             if (userVpn != null) {
@@ -783,7 +790,8 @@ public class VpnManagerService extends IVpnManager.Stub {
             }
             userVpn = mDeps.createVpn(mHandler.getLooper(), mContext, mNMS, mNetd, userId);
             mVpns.put(userId, userVpn);
-            if (mUserManager.getUserInfo(userId).isPrimary() && isLockdownVpnEnabled()) {
+
+            if (user.isPrimary() && isLockdownVpnEnabled()) {
                 updateLockdownVpn();
             }
         }
@@ -898,9 +906,15 @@ public class VpnManagerService extends IVpnManager.Stub {
     }
 
     private void onUserUnlocked(int userId) {
+        UserInfo user = mUserManager.getUserInfo(userId);
+        if (user == null) {
+            logw("Unlocked user doesn't exist. UserId: " + userId);
+            return;
+        }
+
         synchronized (mVpns) {
             // User present may be sent because of an unlock, which might mean an unlocked keystore.
-            if (mUserManager.getUserInfo(userId).isPrimary() && isLockdownVpnEnabled()) {
+            if (user.isPrimary() && isLockdownVpnEnabled()) {
                 updateLockdownVpn();
             } else {
                 startAlwaysOnVpn(userId);