Playing with fuzzers

Emiel Kollof coolvibe at hackerheaven.org
Fri Sep 15 06:09:50 PDT 2006


Op vrijdag 15 september 2006 12:17, schreef Emiel Kollof:
> Hi,
>
> Ilja van Sprundel (some of you might know him) was playing around with a
> trivial syscall fuzzer in DragonFly 1.6-RELEASE and found a few bugs.
>
> One is a free(NULL) in sendmsg, and a panic in malloc that's triggered by
> vfork -> fork1 -> fdcopy -> malloc.

He also has some backraces that were caused by the fuzzer here:

ilja.netric.org/files/dfbsd.bmp
ilja.netric.org/files/dfbsd.2bmp
ilja.netric.org/files/dfbsd3.bmp
ilja.netric.org/files/dfbsd4.bmp

Those are vmware screendumps.

Cheers,
Emiel
-- 
Dr. Livingston?
Dr. Livingston I. Presume?
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