[perl #133989] Assertion failure in Perl_leave_adjust_stacks(pp_hot.c:4653)

On Fri, 05 Apr 2019 09:26:20 -0700, randir wrote:
> While fuzzing perl v5.29.9-63-g2496d8f3f7 built with afl and run
> under libdislocator, I found the following program
> 
> E{0;readline@0}
> 
> to cause an assertion failure
> 
> perl: pp_hot.c:4653: void Perl_leave_adjust_stacks(SV **, SV **, U8,
> int): Assertion `nargs >= 0' failed.

Patch attached.

Tony

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via perlbug:  queue: perl5 status: new
https://rt.perl.org/Ticket/Display.html?id=133989

• [perl #133989] Assertion failure in Perl_leave_adjust_stacks(pp_hot.c:4653) by Tony Cook via RT