From 97aef06a28c3176b0225875c159c6c1e1b247263 Mon Sep 17 00:00:00 2001
From: Jorim Jaggi <jjaggi@google.com>
Date: Wed, 18 Apr 2018 18:17:56 +0200
Subject: [PATCH] Do not allow elevating system_server priority for remote anim

Test: go/wm-smoke
Bug: 77908520
Change-Id: I45f47d73bedb7317c9e80907930f8d4d628f212a
---
 .../java/com/android/server/am/ActivityManagerService.java    | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/services/core/java/com/android/server/am/ActivityManagerService.java b/services/core/java/com/android/server/am/ActivityManagerService.java
index c9dbd45c5be4d..cad4b851b8dec 100644
--- a/services/core/java/com/android/server/am/ActivityManagerService.java
+++ b/services/core/java/com/android/server/am/ActivityManagerService.java
@@ -14542,6 +14542,10 @@ public class ActivityManagerService extends IActivityManager.Stub
     }
 
     void setRunningRemoteAnimation(int pid, boolean runningRemoteAnimation) {
+        if (pid == Process.myPid()) {
+            Slog.wtf(TAG, "system can't run remote animation");
+            return;
+        }
         synchronized (ActivityManagerService.this) {
             final ProcessRecord pr;
             synchronized (mPidsSelfLocked) {