Re: Bash 5.2.21 segfaults when I feed it garbage

[Chet Ramey]

On 1/8/24 12:10 AM, Nathan Mills wrote:

> Bash Version: 5.2
> Patch Level: bash-5.2-22-g4b0f8ba2
> Release Status: master
>
> Description:
>
> Bash 5.2 segfaults when I run the following crashing input (See
> Repeat-By:). 

Thanks for the report and detailed diagnosis, and the reproducer. Your fix,
unfortunately, introduces a number of memory leaks without changes to
restore_parser_state and some other code paths. I think there's a simpler
way to fix it in parse_compound_assignment and parse_string_to_word_list
directly, and that change will be in the next devel branch push.

Chet

--
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU    chet@case.edu    http://tiswww.cwru.edu/~chet/

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