use strict;
use warnings;

use Inline C => <<'END_OF_C';
#define _GNU_SOURCE
void foo() {
    char *s;
    asprintf(&s, "%s", "foo");
    free(s);    
}
END_OF_C

foo();

__END__

Free to wrong pool 6334e0 not 8c00140021160806 at asprintf.pl line 13.