From d515b7d080ce240afa8df2b49f4650e9e9e4baa6 Mon Sep 17 00:00:00 2001
From: Jing Ji <jji@google.com>
Date: Thu, 26 Dec 2019 13:31:06 -0800
Subject: [PATCH] Treat it dead if the process record's pid is invalid

Bug: 146430891
Test: Manual
Change-Id: I98bf86d2a0ee2be2ecdd613e547dbdb0fd621e95
---
 services/core/java/com/android/server/am/ProcessList.java | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/services/core/java/com/android/server/am/ProcessList.java b/services/core/java/com/android/server/am/ProcessList.java
index 7d6933f9bb8ef..a1e1f29016c2e 100644
--- a/services/core/java/com/android/server/am/ProcessList.java
+++ b/services/core/java/com/android/server/am/ProcessList.java
@@ -2101,6 +2101,10 @@ public final class ProcessList {
      */
     @GuardedBy("mService")
     private boolean isProcessAliveLiteLocked(ProcessRecord app) {
+        // If somehow the pid is invalid, let's think it's dead.
+        if (app.pid <= 0) {
+            return false;
+        }
         try {
             Os.kill(app.pid, 0);
         } catch (ErrnoException e) {