From 173601705ccf189fd83e3854f71f6a872c6faeda Mon Sep 17 00:00:00 2001
From: Daniel Larimer <dlarimer@gmail.com>
Date: Sun, 19 May 2013 12:45:52 -0400
Subject: [PATCH 1/2] fix memory leak in CKey::SetCompactSignature()

---
 src/key.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/key.cpp b/src/key.cpp
index 20114e6bb..74b2797d8 100644
--- a/src/key.cpp
+++ b/src/key.cpp
@@ -367,6 +367,7 @@ bool CKey::SetCompactSignature(uint256 hash, const std::vector<unsigned char>& v
         ECDSA_SIG_free(sig);
         return true;
     }
+    ECDSA_SIG_free(sig);
     return false;
 }
 

From a9280652ce61ddbbecfe16e18e1e464bb1f5d34d Mon Sep 17 00:00:00 2001
From: Daniel Larimer <dlarimer@gmail.com>
Date: Sun, 19 May 2013 15:46:11 -0400
Subject: [PATCH 2/2] Fix memory leak on exception in Key::SignCompact

---
 src/key.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/key.cpp b/src/key.cpp
index 74b2797d8..75114c6af 100644
--- a/src/key.cpp
+++ b/src/key.cpp
@@ -328,7 +328,10 @@ bool CKey::SignCompact(uint256 hash, std::vector<unsigned char>& vchSig)
         }
 
         if (nRecId == -1)
+        {
+            ECDSA_SIG_free(sig);
             throw key_error("CKey::SignCompact() : unable to construct recoverable key");
+        }
 
         vchSig[0] = nRecId+27+(fCompressedPubKey ? 4 : 0);
         BN_bn2bin(sig->r,&vchSig[33-(nBitsR+7)/8]);