From 889e5b3050e78614acb45ea0845dc8fd33b157bf Mon Sep 17 00:00:00 2001
From: Pieter Wuille <pieter.wuille@gmail.com>
Date: Wed, 10 Feb 2016 14:19:20 +0100
Subject: Correctly report high-S violations

Github-Pull: #7500
Rebased-From: 9d95187d5ddee56b6dfb55985008bdf70aed31f2
---
 src/script/interpreter.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/script/interpreter.cpp b/src/script/interpreter.cpp
index a928223268..265131ae0d 100644
--- a/src/script/interpreter.cpp
+++ b/src/script/interpreter.cpp
@@ -165,7 +165,10 @@ bool static IsLowDERSignature(const valtype &vchSig, ScriptError* serror) {
         return set_error(serror, SCRIPT_ERR_SIG_DER);
     }
     std::vector<unsigned char> vchSigCopy(vchSig.begin(), vchSig.begin() + vchSig.size() - 1);
-    return CPubKey::CheckLowS(vchSigCopy);
+    if (!CPubKey::CheckLowS(vchSigCopy)) {
+        return set_error(serror, SCRIPT_ERR_SIG_HIGH_S);
+    }
+    return true;
 }
 
 bool static IsDefinedHashtypeSignature(const valtype &vchSig) {
-- 
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