From ecad5f105d456f17598b4c1eb075c0750e10a8f2 Mon Sep 17 00:00:00 2001
From: Paul Higinbotham <paulhi@microsoft.com>
Date: Fri, 20 Sep 2019 10:50:07 -0700
Subject: [PATCH] Fix null reference exception in `ForEach-Object -Parallel`
 input processing (#10577)

---
 src/System.Management.Automation/engine/InternalCommands.cs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/System.Management.Automation/engine/InternalCommands.cs b/src/System.Management.Automation/engine/InternalCommands.cs
index 373098bf95..78338e08cc 100644
--- a/src/System.Management.Automation/engine/InternalCommands.cs
+++ b/src/System.Management.Automation/engine/InternalCommands.cs
@@ -509,7 +509,8 @@ namespace Microsoft.PowerShell.Commands
         private void ProcessParallelParameterSet()
         {
             // Validate piped InputObject
-            if (_inputObject.BaseObject is ScriptBlock)
+            if (_inputObject != null && 
+                _inputObject.BaseObject is ScriptBlock)
             {
                 WriteError(
                     new ErrorRecord(