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Re: [Tinycc-devel] WARNING: TinyCC segmentation faults
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From: |
Edmund Grimley Evans |
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Subject: |
Re: [Tinycc-devel] WARNING: TinyCC segmentation faults |
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Date: |
Thu, 15 Oct 2015 09:17:13 +0100 |
Me:
> I've not been able to reproduce that. Which version of tcc was it?
Update: I can reproduce it with the tcc from Debian amd64. It doesn't
look like a security problem because it's caused by the static
variable cur_text_section still having its initial value of zero in
the function g() at x86_64-gen.c:163. It doesn't happen with a tcc
built from git://repo.or.cz/tinycc.git, and there have been relevant
changes in the source, I think.
You could perhaps try fuzzing the tcc from git.
Thanks for encouraging me to play with afl!
Edmund