yet another SIGNEXTEND fix

ethereumjs · Jun 18, 2017 · 57951f3 · 57951f3
1 parent a90b936
commit 57951f3
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/lib/opFns.js b/lib/opFns.js
@@ -133,6 +133,7 @@ module.exports = {
   },
   SIGNEXTEND: function (k, val, runState) {
     k = new BN(k)
+    val = new Buffer(val) // use clone, don't modify object reference
     var extendOnes = false
 
     if (k.cmpn(31) <= 0) {