From 53ee9c2472ddba0974e0b6b5dc33dbad67509199 Mon Sep 17 00:00:00 2001 From: Jeff Chang Date: Tue, 18 Jan 2022 18:29:52 +0800 Subject: [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) --- core/java/com/android/internal/app/HarmfulAppWarningActivity.java | 4 ++++ 1 file changed, 4 insertions(+) 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); -- cgit v1.2.3-59-g8ed1b