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Groups > gnu.bash.bug > #16686
| From | Chet Ramey <chet.ramey@case.edu> |
|---|---|
| Newsgroups | gnu.bash.bug |
| Subject | Re: bash -n: stack overflow in extract_delimited_string() |
| Date | 2020-08-03 09:15 -0400 |
| Organization | ITS, Case Western Reserve University |
| Message-ID | <mailman.660.1596460527.2739.bug-bash@gnu.org> (permalink) |
| References | <20200803093054.gu6fmxi4eqi7hz45@jwilk.net> <7177240a-2e57-49c2-e35a-7bb16bfc12e3@case.edu> |
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 chet@case.edu http://tiswww.cwru.edu/~chet/
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Re: bash -n: stack overflow in extract_delimited_string() Chet Ramey <chet.ramey@case.edu> - 2020-08-03 09:15 -0400
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