Fuzzing test

flobernd · flobernd · commit f05434e50bd9 · 2021-12-22T09:37:46.000+01:00
diff --git a/src/SharedData.c b/src/SharedData.c
@@ -211,4 +211,4 @@ ZyanBool ZydisGetAccessedFlags(const ZydisInstructionDefinition* definition,
 
 /* ---------------------------------------------------------------------------------------------- */
 
-/* ============================================================================================== */
+/* ============================================================================================== */
diff --git a/tools/ZydisFuzzDecoder.c b/tools/ZydisFuzzDecoder.c
@@ -49,6 +49,10 @@ typedef struct ZydisFuzzControlBlock_
     ZyanUPointer formatter_properties[ZYDIS_FORMATTER_PROP_MAX_VALUE + 1];
     char string[16];
     ZyanU16 formatter_max_len;
+
+    ZydisDecoder decoder;
+    ZydisDecoderContext context;
+    ZydisDecodedInstruction instruction;
 } ZydisFuzzControlBlock;
 
 /* ============================================================================================== */
@@ -86,6 +90,9 @@ int ZydisFuzzTarget(ZydisStreamRead read_fn, void* stream_ctx)
         }
     }
 
+    ZydisDecodedOperand operands2[ZYDIS_MAX_OPERAND_COUNT];
+    ZydisDecoderDecodeOperands(&control_block.decoder, &control_block.context, &control_block.instruction, operands2, ZYDIS_MAX_OPERAND_COUNT);
+
     ZydisFormatter formatter;
     if (!ZYAN_SUCCESS(ZydisFormatterInit(&formatter, control_block.formatter_style)))
     {

Original file line number	Diff line number	Diff line change
`@@ -211,4 +211,4 @@ ZyanBool ZydisGetAccessedFlags(const ZydisInstructionDefinition* definition,`
`211`	`211`
`212`	`212`	`/* ---------------------------------------------------------------------------------------------- */`
`213`	`213`
`214`		`-/* ============================================================================================== */`
	`214`	`+/* ============================================================================================== */`
Original file line number	Diff line number	Diff line change
`@@ -49,6 +49,10 @@ typedef struct ZydisFuzzControlBlock_`
`49`	`49`	`ZyanUPointer formatter_properties[ZYDIS_FORMATTER_PROP_MAX_VALUE + 1];`
`50`	`50`	`char string[16];`
`51`	`51`	`ZyanU16 formatter_max_len;`
	`52`	`+`
	`53`	`+ ZydisDecoder decoder;`
	`54`	`+ ZydisDecoderContext context;`
	`55`	`+ ZydisDecodedInstruction instruction;`
`52`	`56`	`} ZydisFuzzControlBlock;`
`53`	`57`
`54`	`58`	`/* ============================================================================================== */`
`@@ -86,6 +90,9 @@ int ZydisFuzzTarget(ZydisStreamRead read_fn, void* stream_ctx)`
`86`	`90`	`}`
`87`	`91`	`}`
`88`	`92`
	`93`	`+ ZydisDecodedOperand operands2[ZYDIS_MAX_OPERAND_COUNT];`
	`94`	`+ ZydisDecoderDecodeOperands(&control_block.decoder, &control_block.context, &control_block.instruction, operands2, ZYDIS_MAX_OPERAND_COUNT);`
	`95`	`+`
`89`	`96`	`ZydisFormatter formatter;`
`90`	`97`	`if (!ZYAN_SUCCESS(ZydisFormatterInit(&formatter, control_block.formatter_style)))`
`91`	`98`	`{`