From 16e209e08dcb0e8ee49115071809e6540dc57ec1 Mon Sep 17 00:00:00 2001
From: moneromooo-monero <moneromooo-monero@users.noreply.github.com>
Date: Fri, 18 May 2018 09:38:38 +0100
Subject: [PATCH] core: lock incoming tx lock when checking the txpool and
 chain

This gets rid of an innocuous race trying to add the same tx
twice to the txpool
---
 src/cryptonote_core/cryptonote_core.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/cryptonote_core/cryptonote_core.cpp b/src/cryptonote_core/cryptonote_core.cpp
index ce75f74d8..d723d3567 100644
--- a/src/cryptonote_core/cryptonote_core.cpp
+++ b/src/cryptonote_core/cryptonote_core.cpp
@@ -675,6 +675,7 @@ namespace cryptonote
   bool core::handle_incoming_txs(const std::list<blobdata>& tx_blobs, std::vector<tx_verification_context>& tvc, bool keeped_by_block, bool relayed, bool do_not_relay)
   {
     TRY_ENTRY();
+    CRITICAL_REGION_LOCAL(m_incoming_tx_lock);
 
     struct result { bool res; cryptonote::transaction tx; crypto::hash hash; crypto::hash prefix_hash; bool in_txpool; bool in_blockchain; };
     std::vector<result> results(tx_blobs.size());