Bug #80719 [NEW]: Iterating afte failed ArrayObject::setIteratorClass() causes Segmentation fault

From: notmuqsit at gmail dot com Operating system: Ubuntu 20.04.1 LTS (Focal Fossa) PHP version: 7.4.15 Package: SPL related Bug Type: Bug Bug description:Iterating afte failed ArrayObject::setIteratorClass() causes Segmentation fault Description: ------------ ArrayObject::setIteratorClass() accepts a class of type ArrayIterator as its only parameter. Supplying a non-ArrayIterator class, (such as FilterIterator) causes the following error: Fatal error: ArrayObject::getIterator(): Internal compiler error, Class is not child of ArrayObject or ArrayIterator in /in/L5USF on line 5 However, foreach-ing the ArrayObject after a failed setIteratorClass() call as such causes a segmentation fault: Process exited with code 139. Test script: --------------- (https://3v4l.org/L3c7f) <?php $array = new ArrayObject(); $array->setIteratorClass(FilterIterator::class); foreach($array as $_){ } Expected result: ---------------- Fatal error: ArrayObject::getIterator(): Internal compiler error, Class is not child of ArrayObject or ArrayIterator in /in/L3c7f on line 5 Actual result: -------------- Fatal error: ArrayObject::getIterator(): Internal compiler error, Class is not child of ArrayObject or ArrayIterator in /in/L3c7f on line 5 Process exited with code 139. -- Edit bug report at https://bugs.php.net/bug.php?id=80719&edit=1 -- Fix committed: https://bugs.php.net/fix.php?id=80719&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=80719&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=80719&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=80719&r=needscript Try newer version: https://bugs.php.net/fix.php?id=80719&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=80719&r=support Expected behavior: https://bugs.php.net/fix.php?id=80719&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=80719&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=80719&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=80719&r=globals PHP version support discontinued: https://bugs.php.net/fix.php?id=80719&r=phptooold Daylight Savings: https://bugs.php.net/fix.php?id=80719&r=dst IIS Stability: https://bugs.php.net/fix.php?id=80719&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=80719&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=80719&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=80719&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=80719&r=mysqlcfg