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Re: [bug-gawk] two crashes in 4.1.1 found with afl fuzzer


From: arnold
Subject: Re: [bug-gawk] two crashes in 4.1.1 found with afl fuzzer
Date: Tue, 10 Feb 2015 05:13:02 -0700
User-agent: Heirloom mailx 12.4 7/29/08

Hi.

Alexander Nasonov <address@hidden> wrote:

> Hi,
>
> Two short awk programs below crash on NetBSD amd64 box.
> I found them with the american fuzzy lop http://lcamtuf.coredump.cx/afl/
>
> echo | gawk 'address@hidden(/\r$/,"")};1' 
> ...
>
> $ echo | gawk 'address@hidden(NF? ++a " :" :"") $0}'
> ...
>
> Alex

Thanks for the report.

I just tested these two cases on the current code base (the gawk-4.1-stable
branch in git) and they no longer cause internal error / core dumps.

Arnold



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