On 8/3/20 5:30 AM, Jakub Wilk wrote:
> Bash Version: 5.0
> Patch Level: 18
> Release Status: release
>
> bash crashes with stack overflow when checking syntax of this crafted script:
>
> $ ulimit -s
> 8192
>
> $ printf 'x[$(($(fi)))`\n%050000d\n][`]\n' | tr 0 '(' | bash -n
> bash: command substitution: line 4: syntax error near unexpected token `fi'
> bash: command substitution: line 4: `fi)))`'
> Segmentation fault
I can't reproduce this with bash-5.1-alpha.
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU [email protected] http://tiswww.cwru.edu/~chet/
