From 1a74d9a377f12ff18407dfab16e1e1bf11aee4de Mon Sep 17 00:00:00 2001
From: Kolby Moroz Liebl <31669092+KolbyML@users.noreply.github.com>
Date: Thu, 4 Dec 2025 10:03:47 -0700
Subject: [PATCH] Add null check to Transaction.MarshalBinary()

---
 core/types/transaction.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/core/types/transaction.go b/core/types/transaction.go
index 337ab4666d..f4adfab06e 100644
--- a/core/types/transaction.go
+++ b/core/types/transaction.go
@@ -184,6 +184,9 @@ func (tx *Transaction) encodeTyped(w *bytes.Buffer) error {
 // For legacy transactions, it returns the RLP encoding. For EIP-2718 typed
 // transactions, it returns the type and payload.
 func (tx *Transaction) MarshalBinary() ([]byte, error) {
+	if tx.inner == nil {
+		return nil, fmt.Errorf("tx inner data is nil")
+	}
 	if tx.Type() == LegacyTxType {
 		return rlp.EncodeToBytes(tx.inner)
 	}