fix for block 74638 overflow output transaction

git-svn-id: https://bitcoin.svn.sourceforge.net/svnroot/bitcoin/trunk@132 1a98c847-1fd6-4fd8-948a-caf3550aa51b

1 files changed, 8 insertions, 0 deletions

diff --git a/main.cpp b/main.cpp
index 3e7d2b9ecc..0977b32400 100644
--- a/main.cpp
+++ b/main.cpp
@@ -1006,6 +1006,14 @@ bool CTransaction::ConnectInputs(CTxDB& txdb, map<uint256, CTxIndex>& mapTestPoo
                 mapTestPool[prevout.hash] = txindex;

 

             nValueIn += txPrev.vout[prevout.n].nValue;

+

+            // Check for negative or overflow input values

+            if (txPrev.vout[prevout.n].nValue < 0)

+                return error("ConnectInputs() : txin.nValue negative");

+            if (txPrev.vout[prevout.n].nValue > MAX_MONEY)

+                return error("ConnectInputs() : txin.nValue too high");

+            if (nValueIn > MAX_MONEY)

+                return error("ConnectInputs() : txin total too high");

         }

 

         // Tally transaction fees