Can I use Process.start in dll that I am trying to fuzz. about sharpfuzz HOT 9 CLOSED

My dll starts a process using System,Diagnostic.Process.Start I am able to perform instrumentation on this dll without any issue, but while running afl-fuzz, I get an error due to Process.start
Is it possible using sharpfuzz

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Which error do you get?

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This error means that the function you are passing to Fuzzer.Run is throwing exception (or crashing the process) when called with the initial input. Try calling it directly, and see if it will finish without throwing exceptions.

You can also share your fuzzing function here, so I can try to spot if there is anything unusual with it.

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This issue only occurs when I use System.Diagnostics.Process.Start in the instrumented dll. Can you please check if you are able to fuzz an instrumented dll with this method

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I don't think that Process.Start is the issue here. If you give me more details about what you are doing, I might be able to help you.

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Sorry for the late reply :
the code is something like this

	public static void Main(string[] args)
	{
		Fuzzer.Run(stream =>
		{
		    try
		    {
                          Console.log("Open this file")
		      Program.start("www.google.com");
		    }
		    catch (ArgumentException)
		    {
		    }
		});

The code works after I comment out Program.start.

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This is not a reproducible example (it's not even a valid C# code). Again, unless you give me a working example of what you are doing, I really cannot help you.

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Closing due to inactivity.

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