Bug #48816 [Asn->Csd]: IteratorIterator seek() causes bus error

Edit report at https://bugs.php.net/bug.php?id=48816&edit=1 ID: 48816 Updated by: nikic@php.net Reported by: kim at burgestrand dot se Summary: IteratorIterator seek() causes bus error -Status: Assigned +Status: Closed Type: Bug Package: SPL related Operating System: Mac OS 10.5.7 PHP Version: 5.3.0 Assigned To: colder Block user comment: N Private report: N Previous Comments: ------------------------------------------------------------------------ [2016-03-18 19:33:49] nikic@php.net Closing, as per previous comment this is fixed already. ------------------------------------------------------------------------ [2013-11-19 13:14:28] arjen at react dot com Bus error (segmentation fault) fixed since 5.3.16/5.4.6 (see http://3v4l.org/FTIYK) This is a duplicate of https://bugs.php.net/bug.php?id=62616 ------------------------------------------------------------------------ [2012-05-11 01:55:34] simon at welsh dot co dot nz I am still getting a bus error with PHP 5.4, using a current git version. I am calling count() on the IteratorIterator. Reproduce code: <?php $it = new IteratorIterator(new ArrayIterator(array())); var_dump($it->count()); I would expect a PHP Fatal error: Call to undefined method ArrayIterator::count(), as there is no mention of methods being passed off to the underlying Traversable object. ------------------------------------------------------------------------ [2010-11-14 14:19:31] felipe@php.net I can reproduce it on 5.3-SVN. ==3389== Invalid read of size 4 ==3389== at 0x8291199: spl_dual_it_free (spl_iterators.c:1460) ==3389== by 0x8291653: spl_dual_it_next (spl_iterators.c:1526) ==3389== by 0x8291619: zim_spl_dual_it_next (spl_iterators.c:1616) ==3389== by 0x84E841C: zend_do_fcall_common_helper_SPEC (zend_vm_execute.h:316) ==3389== by 0x84E95E3: ZEND_DO_FCALL_BY_NAME_SPEC_HANDLER (zend_vm_execute.h:421) ==3389== by 0x84E7101: execute (zend_vm_execute.h:107) ==3389== by 0x84B54ED: zend_execute_scripts (zend.c:1194) ==3389== by 0x8427201: php_execute_script (main.c:2265) ==3389== by 0x8598D70: main (php_cli.c:1193) ==3389== Address 0x6 is not stack'd, malloc'd or (recently) free'd ==3389== ==3389== Process terminating with default action of signal 11 (SIGSEGV) ==3389== Access not within mapped region at address 0x6 ==3389== at 0x8291199: spl_dual_it_free (spl_iterators.c:1460) ==3389== by 0x8291653: spl_dual_it_next (spl_iterators.c:1526) ==3389== by 0x8291619: zim_spl_dual_it_next (spl_iterators.c:1616) ==3389== by 0x84E841C: zend_do_fcall_common_helper_SPEC (zend_vm_execute.h:316) ==3389== by 0x84E95E3: ZEND_DO_FCALL_BY_NAME_SPEC_HANDLER (zend_vm_execute.h:421) ==3389== by 0x84E7101: execute (zend_vm_execute.h:107) ==3389== by 0x84B54ED: zend_execute_scripts (zend.c:1194) ==3389== by 0x8427201: php_execute_script (main.c:2265) ==3389== by 0x8598D70: main (php_cli.c:1193) ------------------------------------------------------------------------ [2010-06-04 16:43:17] jan-phpbug at kantert dot net I can reproduce the problem in stock Ubuntu 10.04 lucid on 86_64/amd64. PHP 5.3.2-1ubuntu4.2. Results in a segmentation fault! We experienced similar problems with iterators at other points in our code. ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at https://bugs.php.net/bug.php?id=48816 -- Edit this bug report at https://bugs.php.net/bug.php?id=48816&edit=1