From bc514394f2b322b1d74ac5d48778f272736c2956 Mon Sep 17 00:00:00 2001
From: andyzhang2023 <andyzhang2023@gmail.com>
Date: Fri, 29 Nov 2024 10:20:44 +0800
Subject: [PATCH] fix panic: sync.Map range might got nil pointer

---
 core/txpool/legacypool/legacypool.go | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/core/txpool/legacypool/legacypool.go b/core/txpool/legacypool/legacypool.go
index 351e2dfbc..32102b7d8 100644
--- a/core/txpool/legacypool/legacypool.go
+++ b/core/txpool/legacypool/legacypool.go
@@ -491,7 +491,10 @@ func (pool *LegacyPool) loop() {
 				if pool.locals.contains(addr) {
 					return true
 				}
-				beat, _ := pool.beats.Load(addr)
+				beat, ok := pool.beats.Load(addr)
+				if !ok {
+					return true
+				}
 				if time.Since(beat.(time.Time)) > pool.config.Lifetime {
 					list := txs.Flatten()
 					for _, tx := range list {