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

[Julien Grall <julien.grall@xxxxxxx>]

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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