Persistent mode and qemu mode together?

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Luke Smith

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Dec 26, 2019, 10:45:46 PM12/26/19

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If I have a binary with LLVMFuzzerTestOneInput(), is it possible to use persistent fuzzing with the QEMU mode? The use case I'm thinking of is if you are writing a fuzzing harness for a closed-source library. (So you can create an LLVMFuzzerTestOneInput function, but you can't compile the target code with instrumuntation)

Robert Święcki

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Jan 20, 2020, 9:28:56 AM1/20/20

to Luke Smith, honggfuzz

Hi,

Sorry for the late response!

Yeah, please comment out the fork-server #define before compiling qemu, and it should work out of the box

https://github.com/thebabush/honggfuzz-qemu/blob/honggfuzz/fuzz/config.h

pt., 27 gru 2019 o 04:45 Luke Smith <lukecs...@gmail.com> napisał(a):

If I have a binary with LLVMFuzzerTestOneInput(), is it possible to use persistent fuzzing with the QEMU mode? The use case I'm thinking of is if you are writing a fuzzing harness for a closed-source library. (So you can create an LLVMFuzzerTestOneInput function, but you can't compile the target code with instrumuntation)

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