Re: Extended regex match (shmatch.c:115) malloc error

[Gyorgy Matyasfalvi]

Hello,

I have some more info. I tried with versions: 5.0.018 and 4.4.012 and I get
the same behavior.
Also, I'm installing Bash with depothelper (
http://hpux.connect.org.uk/hppd/cgi-bin/search?term=bash&Search=Search).

Best wishes,
Gyorgy

On Mon, Aug 9, 2021 at 1:08 PM Gyorgy Matyasfalvi <matyasfalvi@ampl.com>
wrote:

> Hello,
>
> Would like to report the following:
>
> ###########################################################################
> Configuration Information [Automatically generated, do not change]:
> Machine: ia64
> OS: hpux11.31
> Compiler: cc
> Compilation CFLAGS: -O -I/usr/local/include -D_XOPEN_SOURCE_EXTENDED +DD64
> uname output: HP-UX sovmh352 B.11.31 U ia64 1429105484 unlimited-user
> license
> Machine Type: ia64-hp-hpux11.31
>
> Bash Version: 5.1
> Patch Level: 8
> Release Status: release
>
> Description:
>         When a regex matches inside [[ ]] it results in a malloc error.
>         Whereas if it doesn't you get expected behavior.
>
>         Take the code below:
>
> ----------------------------------------------------------------------------------
>         #!/usr/bin/env bash
>
>         text="123 text!"
>         if [[ "$text" =~ "123" ]]; then
>                 printf "'123' in '$text'\n"
>         else
>                 printf "'123' not in '$text'\n"
>         fi
>
> ----------------------------------------------------------------------------------
>         You will receive:
>
> ----------------------------------------------------------------------------------
>         malloc: shmatch.c:115: assertion botched
>         free: start and end chunk sizes differ
>         Aborting...ABORT instruction (core dumped)
>
> ----------------------------------------------------------------------------------
>
>         On the other hand the code below works as expected:
>
> ----------------------------------------------------------------------------------
>         #!/usr/bin/env bash
>
>         text="123 text!"
>
>         if [[ "$text" =~ "zzz" ]]; then
>                 printf "'zzz' in '$text'\n"
>         else
>                 printf "'zzz' not in '$text'\n"
>         fi
>
> ----------------------------------------------------------------------------------
>         You will receive:
>
> ----------------------------------------------------------------------------------
>         'zzz' not in '123 text!'
>
> ----------------------------------------------------------------------------------
>
> Repeat-By:
>         fails.sh:
>
> ----------------------------------------------------------------------------------
>         text="123 text!"
>         if [[ "$text" =~ "123" ]]; then
>                 printf "'123' in '$text'\n"
>         else
>                 printf "'123' not in '$text'\n"
>         fi
>
> ----------------------------------------------------------------------------------
>         Then execute: bash fails.sh
> ###########################################################################
>
> Let me know if you need anything else. Best wishes,
> Gyorgy
>