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Assume invalid code so check for null

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de4dot 2012-07-27 21:37:05 +02:00
parent 685d2c2ef0
commit 839684685e
1 changed files with 6 additions and 3 deletions
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9
de4dot.code/deobfuscators/Confuser/JitMethodsDecrypter.cs
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@ -466,11 +466,14 @@ namespace de4dot.code.deobfuscators.Confuser {
if (index3 < 0)
continue;
var field1 = (FieldDefinition)instrs[index1].Operand;
var field2 = (FieldDefinition)instrs[index2].Operand;
var field3 = (FieldDefinition)instrs[index3].Operand;
var field1 = instrs[index1].Operand as FieldDefinition;
var field2 = instrs[index2].Operand as FieldDefinition;
var field3 = instrs[index3].Operand as FieldDefinition;
if (field1 == null || field2 == null || field3 == null)
continue;
if (field1.DeclaringType != field2.DeclaringType || field1.DeclaringType != field3.DeclaringType)
continue;
maxStackIndex = getInstanceFieldIndex(field1);
ehsIndex = getInstanceFieldIndex(field2);
optionsIndex = getInstanceFieldIndex(field3);