#41075 [NEW]: memleak when creating default object caused exception

From: tony2001@php.net Operating system: Linux PHP version: 5CVS-2007-04-13 (CVS) PHP Bug Type: Scripting Engine problem Bug description: memleak when creating default object caused exception Description: ------------ Kinda hard to explain, better look at the code below. The leak is only reproducible when return value is used, remove $var and it's gone. Reproduce code: --------------- <?php function err($errno, $errstr, $errfile, $errline) { throw new Exception($errstr); } set_error_handler("err"); class test { function foo() { $var = $this->blah->prop = "string"; var_dump($this->blah); } } $t = new test; try { $t->foo(); } catch (Exception $e) { var_dump($e->getMessage()); } ?> Actual result: -------------- ==11422== 7 bytes in 1 blocks are indirectly lost in loss record 1 of 2 ==11422== at 0x401C6CE: malloc (vg_replace_malloc.c:149) ==11422== by 0x82BEA9F: _emalloc (zend_alloc.c:2231) ==11422== by 0x82BED45: _estrndup (zend_alloc.c:2353) ==11422== by 0x82D75CF: _zval_copy_ctor_func (zend_variables.c:120) ==11422== by 0x833BDD4: _zval_copy_ctor (zend_variables.h:45) ==11422== by 0x833D047: zend_assign_to_object (zend_execute.c:593) ==11422== by 0x830DA7A: ZEND_ASSIGN_OBJ_SPEC_VAR_CONST_HANDLER (zend_vm_execute.h:9226) ==11422== by 0x82F8680: execute (zend_vm_execute.h:92) ==11422== by 0x82F8BA2: zend_do_fcall_common_helper_SPEC (zend_vm_execute.h:234) ==11422== by 0x82F8FB9: ZEND_DO_FCALL_BY_NAME_SPEC_HANDLER (zend_vm_execute.h:322) ==11422== by 0x82F8680: execute (zend_vm_execute.h:92) ==11422== by 0x82D92F7: zend_execute_scripts (zend.c:1134) ==11422== by 0x828FE7C: php_execute_script (main.c:1790) ==11422== by 0x833FA35: main (php_cli.c:1127) ==11422== ==11422== ==11422== 23 (16 direct, 7 indirect) bytes in 1 blocks are definitely lost in loss record 2 of 2 ==11422== at 0x401C6CE: malloc (vg_replace_malloc.c:149) ==11422== by 0x82BEA9F: _emalloc (zend_alloc.c:2231) ==11422== by 0x833CFFF: zend_assign_to_object (zend_execute.c:589) ==11422== by 0x830DA7A: ZEND_ASSIGN_OBJ_SPEC_VAR_CONST_HANDLER (zend_vm_execute.h:9226) ==11422== by 0x82F8680: execute (zend_vm_execute.h:92) ==11422== by 0x82F8BA2: zend_do_fcall_common_helper_SPEC (zend_vm_execute.h:234) ==11422== by 0x82F8FB9: ZEND_DO_FCALL_BY_NAME_SPEC_HANDLER (zend_vm_execute.h:322) ==11422== by 0x82F8680: execute (zend_vm_execute.h:92) ==11422== by 0x82D92F7: zend_execute_scripts (zend.c:1134) ==11422== by 0x828FE7C: php_execute_script (main.c:1790) ==11422== by 0x833FA35: main (php_cli.c:1127) -- Edit bug report at http://bugs.php.net/?id=41075&edit=1 -- Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=41075&r=trysnapshot44 Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=41075&r=trysnapshot52 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=41075&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=41075&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=41075&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=41075&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=41075&r=needscript Try newer version: http://bugs.php.net/fix.php?id=41075&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=41075&r=support Expected behavior: http://bugs.php.net/fix.php?id=41075&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=41075&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=41075&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=41075&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=41075&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=41075&r=dst IIS Stability: http://bugs.php.net/fix.php?id=41075&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=41075&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=41075&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=41075&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=41075&r=mysqlcfg