Re: [Xen-devel] [PATCH 2/4] tools/fuzz: add AFL stub program for x86 insn emulator fuzzer

[Ian Jackson <ian.jackson@xxxxxxxxxxxxx>]

Andrew Cooper writes ("Re: [PATCH 2/4] tools/fuzz: add AFL stub program for x86 
insn emulator fuzzer"):
> On 24/01/17 17:22, Ian Jackson wrote:
> > You don't need to test with stat unless you want to support files
> > bigger than your static buffer.
> 
> It is expected that AFL data will eventually become longer than the
> fuzzer wishes.  You should ignore extraneous data.

No, you should exit nonzero.

That will signal to fuzzers that this is not a "valid" input and so
not interesting.  It will signal to other kinds of test code that
something is wrong.

Ian.

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