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Bug #60626 filter_var crash
Submitted: 2011-12-29 22:29 UTC Modified: 2012-01-02 22:17 UTC
From: stephanvanruth at gmail dot com Assigned: pajoye (profile)
Status: Not a bug Package: *General Issues
PHP Version: 5.4.0RC4 OS: Win 7 x64
Private report: No CVE-ID: None
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 [2011-12-29 22:29 UTC] stephanvanruth at gmail dot com 
Description:
------------
Crash when a string longer than 225 characters (while containing @) is passed to filter_var

Test script:
---------------
filter_var('the-total-length@of-an-entire-address.cannot-be-longer-than-two-hundred-and-fifty-four-characters.and-this-address-is-254-characters-exactly.so-it-should-be-valid.and-im-going-to-add-some-more-words-here.to-increase-the-lenght-blah-blah-blah-blah-bla.org', FILTER_VALIDATE_EMAIL);

Expected result:
----------------
return the input given

Actual result:
--------------
crash

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 [2011-12-31 11:14 UTC] pajoye@php.net
-Status: Open +Status: Feedback -Assigned To: +Assigned To: pajoye
 [2011-12-31 11:14 UTC] pajoye@php.net 
It sounds to me like your stack is too small, are you using it within Apache?

Can you try in CLI using php.exe t.php and then using php.exe -n t.php please?
 [2011-12-31 14:02 UTC] stephanvanruth at gmail dot com
-Status: Feedback +Status: Assigned
 [2011-12-31 14:02 UTC] stephanvanruth at gmail dot com 
t.php:

<?php
$mail = filter_var('the-total-length@of-an-entire-address.cannot-be-longer-than-two-hundred-and-fifty-four-characters.and-this-address-is-254-characters-exactly.so-it-should-be-valid.and-im-going-to-add-some-more-words-here.to-increase-the-lenght-blah-blah-blah-blah-bla.org', FILTER_VALIDATE_EMAIL);
file_put_contents('test.txt', $mail);
?>

Success!
test.txt has been created and contains the given string.

works with both:
php t.php
php -n t.php

Thnx for this, whenever I 'think' I have found a bug, I will try this first.
I'm gonna google "Apache stack too small" now.

Happy New Year!

Stephan
 [2012-01-02 22:17 UTC] pajoye@php.net
-Status: Assigned +Status: Bogus
 [2012-01-02 22:17 UTC] pajoye@php.net 
See http://msdn.microsoft.com/en-us/library/xd3shwhf(v=vs.71).aspx

And no, no need to assign to me, there is no bug.

We do not control how apache is built nor how it is configured (stack size 
option).

Cheers.
 
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