From c9121fe49877f14f22ee66bb01d6693ecee44d55 Mon Sep 17 00:00:00 2001
From: ghidra1 <ghidra1@users.noreply.github.com>
Date: Tue, 19 Oct 2021 14:10:17 -0400
Subject: [PATCH] GP-1415 corrected NPE in CreatethunkFunctionCmd

---
 .../java/ghidra/app/cmd/function/CreateThunkFunctionCmd.java   | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Ghidra/Features/Base/src/main/java/ghidra/app/cmd/function/CreateThunkFunctionCmd.java b/Ghidra/Features/Base/src/main/java/ghidra/app/cmd/function/CreateThunkFunctionCmd.java
index ef3430330a..130da02064 100644
--- a/Ghidra/Features/Base/src/main/java/ghidra/app/cmd/function/CreateThunkFunctionCmd.java
+++ b/Ghidra/Features/Base/src/main/java/ghidra/app/cmd/function/CreateThunkFunctionCmd.java
@@ -796,6 +796,9 @@ public class CreateThunkFunctionCmd extends BackgroundCommand {
 		}
 		// check the parent varnode
 		Register register = program.getRegister(regVarnode);
+		if (register == null) {
+			return false;
+		}
 		Register parentRegister = register.getParentRegister();
 		if (parentRegister == null) {
 			return false;