From 9e3c25a676c5e5acb5b854bed3c1975662070bea Mon Sep 17 00:00:00 2001
From: 10gic <2391796+10gic@users.noreply.github.com>
Date: Thu, 25 Sep 2025 10:50:40 +0800
Subject: [PATCH] chore: add sanity check for receipts and transaction length

---
 eth/filters/filter.go | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/eth/filters/filter.go b/eth/filters/filter.go
index 0b2f403355..02399bc801 100644
--- a/eth/filters/filter.go
+++ b/eth/filters/filter.go
@@ -569,6 +569,11 @@ func filterReceipts(txHashes []common.Hash, ev core.ChainEvent) []*ReceiptWithTx
 	receipts := ev.Receipts
 	txs := ev.Transactions
 
+	if len(receipts) != len(txs) {
+		log.Warn("Receipts and transactions length mismatch", "receipts", len(receipts), "transactions", len(txs))
+		return ret
+	}
+
 	if len(txHashes) == 0 {
 		// No filter, send all receipts with their transactions.
 		ret = make([]*ReceiptWithTx, len(receipts))
@@ -582,7 +587,7 @@ func filterReceipts(txHashes []common.Hash, ev core.ChainEvent) []*ReceiptWithTx
 		// Filter by single transaction hash.
 		// This is a common case, so we distinguish it from filtering by multiple tx hashes and made a small optimization.
 		for i, receipt := range receipts {
-			if receipt.TxHash == (txHashes)[0] {
+			if receipt.TxHash == txHashes[0] {
 				ret = append(ret, &ReceiptWithTx{
 					Receipt:     receipt,
 					Transaction: txs[i],