From d203a3f1e602e8e1e2aef448ad8b0a45e7fb895d Mon Sep 17 00:00:00 2001
From: zhiqiangxu <652732310@qq.com>
Date: Sat, 24 Feb 2024 12:17:50 +0800
Subject: [PATCH 1/2] update mgval by side effect

---
 core/state_transition.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/core/state_transition.go b/core/state_transition.go
index 9c4f76d1c585..64c8abb7ed93 100644
--- a/core/state_transition.go
+++ b/core/state_transition.go
@@ -234,7 +234,7 @@ func (st *StateTransition) to() common.Address {
 
 func (st *StateTransition) buyGas() error {
 	mgval := new(big.Int).SetUint64(st.msg.GasLimit)
-	mgval = mgval.Mul(mgval, st.msg.GasPrice)
+	mgval.Mul(mgval, st.msg.GasPrice)
 	balanceCheck := new(big.Int).Set(mgval)
 	if st.msg.GasFeeCap != nil {
 		balanceCheck.SetUint64(st.msg.GasLimit)

From e2236e969ec3471f33fde5d61c7f770e66a7dcaa Mon Sep 17 00:00:00 2001
From: zhiqiangxu <652732310@qq.com>
Date: Sat, 24 Feb 2024 15:52:24 +0800
Subject: [PATCH 2/2] the same for refundGas

---
 core/state_transition.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/core/state_transition.go b/core/state_transition.go
index 64c8abb7ed93..a868b1504d4f 100644
--- a/core/state_transition.go
+++ b/core/state_transition.go
@@ -477,7 +477,7 @@ func (st *StateTransition) refundGas(refundQuotient uint64) uint64 {
 
 	// Return ETH for remaining gas, exchanged at the original rate.
 	remaining := uint256.NewInt(st.gasRemaining)
-	remaining = remaining.Mul(remaining, uint256.MustFromBig(st.msg.GasPrice))
+	remaining.Mul(remaining, uint256.MustFromBig(st.msg.GasPrice))
 	st.state.AddBalance(st.msg.From, remaining)
 
 	// Also return remaining gas to the block gas counter so it is