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Re: [Xen-devel] [PATCH 0/4] fuzz: basic AFL support



Hi Wei,

On 20/01/17 12:11, Wei Liu wrote:
Provide simple stub programs for AFL fuzzer. For usage, please see README.afl.

This series doesn't aim to improve fuzzing targets. It is just demonstration
for how we could use the same fuzzing code for both oss-fuzz and AFL.

The stub programs are identical in libefl and x86 emulator at the moment, but
they will likely diverge in the future. The duplication of code is deliberate.

Julien, FYI I think the in-tree libfdt could have something similar, too.

I am not sure if it would be useful. We know that libfdt is not protected against rogue device-tree and therefore fuzzing will likely break it. Any device-tree used are expected to be trusted (this is documented in the tools).

Anyway, it would be nice to get libfdt fixed and provide patch the upstream version [1].

Cheers,

[1] https://git.kernel.org/cgit/utils/dtc/dtc.git

--
Julien Grall

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