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[RESTRICT AUTOMERGE] Add hide-non-system-overlay flag for HarmfulAppWarningActivity

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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 a04b3666b8)
This commit is contained in:
Jeff Chang
2022-01-18 18:29:52 +08:00
parent f1dc5b1ee1
commit 53ee9c2472
1 changed files with 4 additions and 0 deletions
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4
core/java/com/android/internal/app/HarmfulAppWarningActivity.java
View File

@@ -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);