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Re: double free corruption bash 4.2.53(1)-release


From: evil
Subject: Re: double free corruption bash 4.2.53(1)-release
Date: Thu, 9 Nov 2017 14:16:23 -0700
User-agent: SquirrelMail/1.4.23 [SVN]

Thanks for at least trying.  I haven't found anyone else that has been
able to replicate it either, this would be a huge pain to chase down for
me.  I'm able to replicate it 100% of the time on my system.  So if anyone
IS interested in trying please contact me and I will give them a shell
account to help me figure out what is wrong.  The new version of bash
doesn't seem to let me echo unicode properly, so I would be greatly
interested in figuring out what is wrong.  Or for some guidance on fixing
that.

# uname -a;/lib64/libc.so.6;lsb_release -a
Linux ifrit 3.2.35-hardened-unicorn #7 SMP PREEMPT Fri Jun 28 02:48:14 CDT
2013 x86_64 Intel(R) Xeon(R) CPU X3220 @ 2.40GHz GenuineIntel GNU/Linux
GNU C Library (Gentoo 2.23-r4 p8) stable release version 2.23, by Roland
McGrath et al.
Copyright (C) 2016 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.
Compiled by GNU CC version 4.9.3.
Available extensions:
        C stubs add-on version 2.1.2
        crypt add-on version 2.1 by Michael Glad and others
        GNU Libidn by Simon Josefsson
        Native POSIX Threads Library by Ulrich Drepper et al
        BIND-8.2.3-T5B
libc ABIs: UNIQUE IFUNC
For bug reporting instructions, please see:
<http://bugs.gentoo.org/>.
LSB Version:    n/a
Distributor ID: Gentoo
Description:    NAME=Gentoo
Release:        n/a
Codename:       n/a




> On 11/9/17 11:19 AM, address@hidden wrote:
>> Hi all,
>>
>> I found a bug in bash 4.2.48+ (doesn't seem to effect bash 4.3)
>
> Thanks for the report. A couple things: I no longer support bash-4.2.
> If this is fixed in bash-4.3, it's been fixed for almost four years in
> an official release (and longer than that in a development branch).
> Second, just for grins, I ran your script against bash-4.2.53 on RHEL6,
> and didn't get a crash.
>
> Chet
>
> --
> ``The lyf so short, the craft so long to lerne.'' - Chaucer
>                ``Ars longa, vita brevis'' - Hippocrates
> Chet Ramey, UTech, CWRU    address@hidden
> http://cnswww.cns.cwru.edu/~chet/
>





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