From def2fdb4b9b52fa908c11fe2f5a42ea04f8e9f11 Mon Sep 17 00:00:00 2001
From: Gavin Andresen <gavinandresen@gmail.com>
Date: Tue, 9 Sep 2014 14:01:11 -0400
Subject: [PATCH] Fix crashing bug caused by orphan(s) with duplicate
 prevout.hash

---
 src/main.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/main.cpp b/src/main.cpp
index f063a48fe..27100d62c 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -498,6 +498,8 @@ void static EraseOrphanTx(uint256 hash)
     BOOST_FOREACH(const CTxIn& txin, it->second.vin)
     {
         map<uint256, set<uint256> >::iterator itPrev = mapOrphanTransactionsByPrev.find(txin.prevout.hash);
+        if (itPrev == mapOrphanTransactionsByPrev.end())
+            continue;
         itPrev->second.erase(hash);
         if (itPrev->second.empty())
             mapOrphanTransactionsByPrev.erase(itPrev);