Item12887: Configure loops on some versions of perl

The issue appears to have been created in distro:2b58221be313.

The perl debugger narrowed the code down to a while loop in lib/Foswiki/Configure/TemplateParser/SimpleFreeMarker.pm Perlbrew 5.8.8, configure loops. It appears as though the while loop here:

    while (
        $_[1] =~ m{
      (?:
...
    }gx
      )
    {
        if ( defined($1) ) {

loops forever because the position within the regex never advances. Debugger shows the same line pushed over and over into an array until the server runs out of memory.

It appears to be specific to 5.8.8 built with perlbrew.

-- GeorgeClark - 05 May 2014

See Item12976. This appears to be the same loop. Running with Taint mode disabled also prevents the loop.

-- GeorgeClark - 30 Jul 2014

Also loops with perl 5.10.1. It seems reasonable to remove taint checking from configure.

-- GeorgeClark - 30 Jul 2014

Closing this as no action. Crawford's rewritten configure no longer uses the SimpleFreeMarker template engine.

-- GeorgeClark - 18 Sep 2014

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