Bug #67375 [NEW]: JIT enabled sometimes breaks filters

From: Date: Tue, 03 Jun 2014 17:21:38 +0000
Subject: Bug #67375 [NEW]: JIT enabled sometimes breaks filters
Groups: php.bugs 
Request: Send a blank email to php-bugs+get-186035@lists.php.net to get a copy of this message
From: garyamort at gmail dot com Operating system: Arch Linux 64bit PHP version: 5.5.13 Package: Filter related Bug Type: Bug Bug description:JIT enabled sometimes breaks filters Description: ------------ In some situations, if you have auto_globals_jit enables then not only are super global variables not initialized unless they are called, the underlying data storage for the original data[used by filter_input] will not be populated. As I read filter.c, there seems to be a weird schism on how it deals with this. https://github.com/php/php-src/blob/master/ext/filter/filter.c#L526 For INPUT_SERVER and INPUT_ENV it seems as if filter will make sure to initialize the data, example: if (PG(auto_globals_jit)) { zend_is_auto_global("_SERVER", sizeof("_SERVER")-1 TSRMLS_CC); } For INPUT_POST, INPUT_GET, and INPUT_COOKIE however there is no safety net. Test script: --------------- <?php // execute from web browser as http://domain/filename.php?test=123 $before = filter_input(INPUT_GET, 'test'); // $before = null $var = $_GET('test'); // $var = 'test' $after = filter_input(INPUT_GET, 'test'); // $after = 'test' if ($before !== $after) { echo 'Raw input failed to load'; } -- Edit bug report at https://bugs.php.net/bug.php?id=67375&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=67375&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=67375&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=67375&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=67375&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=67375&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=67375&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=67375&r=needscript Try newer version: https://bugs.php.net/fix.php?id=67375&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=67375&r=support Expected behavior: https://bugs.php.net/fix.php?id=67375&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=67375&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=67375&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=67375&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=67375&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=67375&r=dst IIS Stability: https://bugs.php.net/fix.php?id=67375&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=67375&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=67375&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=67375&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=67375&r=mysqlcfg

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