From 1f5c28d8336aa9ce7d0ce9b73bffdd4106c85d8e Mon Sep 17 00:00:00 2001
From: Martin Holst Swende <martin@swende.se>
Date: Thu, 7 Mar 2019 12:01:46 +0100
Subject: [PATCH] core/vm: fix error in memory calculation

---
 core/vm/common.go | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/core/vm/common.go b/core/vm/common.go
index 63bb3a746c..b4179890da 100644
--- a/core/vm/common.go
+++ b/core/vm/common.go
@@ -28,7 +28,7 @@ import (
 func calcMemSize64(off, l *big.Int) (uint64, bool) {
 	// if length is zero, memsize is always zero, regardless of offset
 	if l.Sign() == 0 {
-		return 0, true
+		return 0, false
 	}
 	// Check that neither offset nor length overflows
 	if off.BitLen() > 64 || l.BitLen() > 64 {
@@ -51,7 +51,7 @@ func calcMemSize64(off, l *big.Int) (uint64, bool) {
 func calcMemSize64WithUint(off *big.Int, length64 uint64) (uint64, bool) {
 	// if length is zero, memsize is always zero, regardless of offset
 	if length64 == 0 {
-		return 0, true
+		return 0, false
 	}
 	// Check that offset doesn't overflow
 	if off.BitLen() > 64 {