From cc65a4ad321569b6053b395c31a3c0c113d93257 Mon Sep 17 00:00:00 2001
From: lightclient <lightclient@protonmail.com>
Date: Wed, 29 Oct 2025 20:11:31 -0600
Subject: [PATCH] core: panic if authorizations length doesn't match
 authorities

---
 core/state_transition.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/core/state_transition.go b/core/state_transition.go
index e1daa9bd91..029c6717d5 100644
--- a/core/state_transition.go
+++ b/core/state_transition.go
@@ -520,6 +520,10 @@ func (st *stateTransition) execute() (*ExecutionResult, error) {
 
 		// Apply EIP-7702 authorizations.
 		if msg.SetCodeAuthorizations != nil {
+			if len(msg.SetCodeAuthorizations) != len(msg.Authorities) {
+				// This is an invariant of Message that cannot be invalidated.
+				panic("Length of authorizations does match authorities")
+			}
 			for i, auth := range msg.SetCodeAuthorizations {
 				addr := msg.Authorities[i]
 				if addr == nil {