Wireshark-dev: Re: [Wireshark-dev] [Wireshark-commits] master cf142c6: Get Wireshark to compile
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From: Gerald Combs <gerald@xxxxxxxxxxxxx>
Date: Sat, 24 Jan 2015 17:04:33 -0800
On 1/24/15 3:07 PM, Guy Harris wrote:
> 
> On Jan 24, 2015, at 2:43 PM, Gerald Combs <gerald@xxxxxxxxxxxxx> wrote:
> 
>> These were fixes that had to be made prior to fuzzing. As far as I can
>> tell they fall into the "squelch a compiler warning" category. afl-gcc
>> generates an instrumented executable, which you can then run under
>> afl-fuzz (the actual fuzzer). According to the documentation the
>> instrumentation isn't strictly necessary but it does enable more
>> intelligent and efficient fuzzing.
> 
> So on what version of GCC is the version of afl-gcc you're running based?  That might either be an incomplete data flow analysis in that version of GCC, or might be AFL extending the data flow analysis but not doing a complete job of it.

$ gcc --version
gcc-4.6.real (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3
Copyright (C) 2011 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

New fuzzer, old-ish compiler.