On 21/09/20 16:34, Alexander Bulekov wrote:
>> Can you fuzz writing "FUZZ" in memory? Like:
>> OP_WRITE(0x100000, "UsingLibFUZZerString")?
> No.. Hopefully that's not a huge problem.
> 

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?

In that case, if you have

  AbcFUZZD0x100000UsingLibFUZZerFUZZ

The first and third instances would be ignored, while the second would
be part of the input.  On the other hand if you have

  bcFUZZD0x100000UsingLibFUZZerFUZZ

"b" is an invalid command and therefore you'd skip directly to "D".

Paolo


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