diff --git a/Bindings/C/VXInstructionDecoderC.c b/Bindings/C/VXInstructionDecoderC.c
index 8541cc2..7c6d862 100644
--- a/Bindings/C/VXInstructionDecoderC.c
+++ b/Bindings/C/VXInstructionDecoderC.c
@@ -287,6 +287,11 @@ VXBaseDataSourceContext* VXMemoryDataSource_Create(
     VXMemoryDataSource      *thiz = malloc(sizeof(VXMemoryDataSource));
     VXBaseDataSourceContext *ctx  = malloc(sizeof(VXBaseDataSourceContext));
 
+    if (!thiz || !ctx)
+    {
+        return NULL;
+    }
+
     ctx->d.type = TYPE_MEMORYDATASOURCE;
     ctx->d.ptr  = thiz;
 
@@ -362,6 +367,11 @@ VXInstructionDecoderContext* VXInstructionDecoder_CreateEx(
     VXInstructionDecoder *thiz       = malloc(sizeof(VXInstructionDecoder));
     VXInstructionDecoderContext *ctx = malloc(sizeof(VXInstructionDecoderContext));
 
+    if (!thiz || !ctx)
+    {
+        return NULL;
+    }
+
     ctx->d.ptr  = thiz;
     ctx->d.type = TYPE_INSTRUCTIONDECODER;
 
@@ -1590,7 +1600,7 @@ static bool VXInstructionDecoder_DecodeOpcode(VXInstructionDecoderContext *ctx,
                 {
                     if (info->operand[i].type != OPTYPE_NONE)
                     {
-                        info->operand[i - 1].access_mode = OPACCESSMODE_READ;
+                        info->operand[i].access_mode = OPACCESSMODE_READ;
                     }    
                 }
                 if (info->operand[0].type != OPTYPE_NONE)
diff --git a/Bindings/C/VXInstructionFormatterC.c b/Bindings/C/VXInstructionFormatterC.c
index 64db11f..cd81a15 100644
--- a/Bindings/C/VXInstructionFormatterC.c
+++ b/Bindings/C/VXInstructionFormatterC.c
@@ -193,6 +193,11 @@ VXBaseSymbolResolverContext* VXCustomSymbolResolver_Create(
     VXCustomSymbolResolver      *thiz = malloc(sizeof(VXCustomSymbolResolver));
     VXBaseSymbolResolverContext *ctx  = malloc(sizeof(VXBaseSymbolResolverContext));
 
+    if (!thiz || !ctx)
+    {
+        return NULL;
+    }
+
     ctx->d.type = TYPE_CUSTOMSYMBOLRESOLVER;
     ctx->d.ptr  = thiz;
 
@@ -676,6 +681,9 @@ VXBaseInstructionFormatterContext* VXIntelInstructionFormatter_CreateEx(
     VXIntelInstructionFormatter *thiz = malloc(sizeof(VXIntelInstructionFormatter));
     VXBaseInstructionFormatterContext *ctx = malloc(sizeof(VXBaseInstructionFormatterContext));
 
+    if (!thiz || !ctx)
+        return NULL;
+
     ctx->d.type = TYPE_INTELINSTRUCTIONFORMATTER;
     ctx->d.ptr  = thiz;
 
diff --git a/Examples/CBindings/test.c b/Examples/CBindings/test.c
index 3cfa534..ae68857 100644
--- a/Examples/CBindings/test.c
+++ b/Examples/CBindings/test.c
@@ -113,6 +113,11 @@ int main()
         }
     }
 
+    VXBaseDataSource_Release(input32);
+    VXBaseDataSource_Release(input64);
+    VXBaseInstructionFormatter_Release(formatter);
+    VXInstructionDecoder_Release(decoder);
+
     getchar();
     return 0;
 }
\ No newline at end of file