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

[Chris F.A. Johnson]

On Mon, 9 Aug 2021, Gyorgy Matyasfalvi wrote:

> 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)
> ----------------------------------------------------------------------------------

I get:

'123' in '123 text!'

(bash 5.1 in mate-terminal)

--
   Chris F.A. Johnson                         <http://cfajohnson.com/>
   =========================== Author: ===============================
   Shell Scripting Recipes: A Problem-Solution Approach (2005, Apress)
   Pro Bash Programming: Scripting the GNU/Linux shell (2009, Apress)