From c71157fd810d4367c0277a7647622b4e7dde4565 Mon Sep 17 00:00:00 2001
From: frozen <355847+Frozen@users.noreply.github.com>
Date: Sat, 8 Jun 2024 18:52:33 -0400
Subject: [PATCH] Fixed data race.

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

diff --git a/core/blockchain_impl.go b/core/blockchain_impl.go
index d71371986e..a065ecfd6d 100644
--- a/core/blockchain_impl.go
+++ b/core/blockchain_impl.go
@@ -490,6 +490,9 @@ func (bc *BlockChainImpl) ValidateNewBlock(block *types.Block, beaconChain Block
 	if block.NumberU64() <= bc.CurrentBlock().NumberU64() {
 		return errors.Errorf("block with the same block number is already committed: %d", block.NumberU64())
 	}
+
+	bc.chainmu.Lock()
+	defer bc.chainmu.Unlock()
 	if err := bc.validator.ValidateHeader(block, true); err != nil {
 		utils.Logger().Error().
 			Str("blockHash", block.Hash().Hex()).