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Re: [PATCH v3 02/16] fuzz: Add general virtual-device fuzzer
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From: |
Paolo Bonzini |
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Subject: |
Re: [PATCH v3 02/16] fuzz: Add general virtual-device fuzzer |
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Date: |
Mon, 12 Oct 2020 09:02:01 +0200 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.11.0 |
On 11/10/20 17:35, Alexander Bulekov wrote:
>> Instead of always looking for a separator, can you:
>>
>> 1) skip over it if you find it naturally at the end of a command (that
>> is, "FUZZ" is like a comment command)
>>
>> 2) actively search for it only if you stumble upon an unrecognized command?
>>
> What is the end goal? Is it to be able to use the "FUZZ" bytes to fuzz
> devices?
Yes, possibly, and perhaps also using a shorter separator that is easier
to learn. But if the dictionary is enough to work around the learning
time and it's unlikely that crossover produces inputs like that, I guess
it's okay to have the separator.
Paolo