Re: heap-use-after-free in executing_line_number

[Chet Ramey]

On 1/25/24 3:23 AM, Grisha Levit wrote:
> If currently_executing_command was a subshell, it can end up freed by
> the time executing_line_number checks it.

Thanks for the report. The fix is to have function_substitute save and
restore this, since parse_and_execute can overwrite it.

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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