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authorJeff Chang <chengjeff@google.com>2022-01-18 18:29:52 +0800
committerAndroid Build Coastguard Worker <android-build-coastguard-worker@google.com>2022-02-14 23:12:52 +0000
commite74a2a320bf896bc30618ce486203bafe453c469 (patch)
tree13de69dc701059a7c0f315c6d05f2cd159fc5beb
parentf2387994151fb5c22c9e645647945e1471fe8ac1 (diff)
downloadbase-e74a2a320bf896bc30618ce486203bafe453c469.tar.gz
[RESTRICT AUTOMERGE] Add hide-non-system-overlay flag for HarmfulAppWarningActivity
A malicious application could overlay the activity. The overlay is able to be tapped through, which can trick the user into starting a harmful activity. The CL added the flag SYSTEM_FLAG_HIDE_NON_SYSTEM_OVERLAY_WINDOWS for the activity to prevent the tapjacking/overlay attack. Bug: 205595291 Test: atest CtsHarmfulAppWarningHostTestCases Change-Id: Ia1a1ae0dc451e04bf5c31e3cb8cf30a0d8e32991 (cherry picked from commit a04b3666b8619e09e08646c6d5c529d016cbfb47) (cherry picked from commit f36b7b9f80fde732aa102b04cd8ce6a6db1a3616) Merged-In:Ia1a1ae0dc451e04bf5c31e3cb8cf30a0d8e32991
-rw-r--r--core/java/com/android/internal/app/HarmfulAppWarningActivity.java4
1 files changed, 4 insertions, 0 deletions
diff --git a/core/java/com/android/internal/app/HarmfulAppWarningActivity.java b/core/java/com/android/internal/app/HarmfulAppWarningActivity.java
index ce2d229d41b3..33209e110123 100644
--- a/core/java/com/android/internal/app/HarmfulAppWarningActivity.java
+++ b/core/java/com/android/internal/app/HarmfulAppWarningActivity.java
@@ -16,6 +16,8 @@
package com.android.internal.app;
+import static android.view.WindowManager.LayoutParams.SYSTEM_FLAG_HIDE_NON_SYSTEM_OVERLAY_WINDOWS;
+
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
@@ -27,6 +29,7 @@ import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.TextView;
+
import com.android.internal.R;
/**
@@ -48,6 +51,7 @@ public class HarmfulAppWarningActivity extends AlertActivity implements
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
+ getWindow().addSystemFlags(SYSTEM_FLAG_HIDE_NON_SYSTEM_OVERLAY_WINDOWS);
final Intent intent = getIntent();
mPackageName = intent.getStringExtra(Intent.EXTRA_PACKAGE_NAME);
mTarget = intent.getParcelableExtra(Intent.EXTRA_INTENT);