Bug #69528 [Opn]: MBString making Apache crash

Edit report at https://bugs.php.net/bug.php?id=69528&edit=1 ID: 69528 User updated by: jfha73 at gmail dot com Reported by: jfha73 at gmail dot com Summary: MBString making Apache crash Status: Open Type: Bug Package: mbstring related Operating System: Windows -PHP Version: 5.6.9 +PHP Version: 5.6.10 Block user comment: N Private report: N New Comment: This is still happening with 5.6.10 and I have tried everything you and OsTicket told me, what else can I do?. Faulting application name: httpd.exe, version: 2.4.12.0, time stamp: 0x54c8e2ca Faulting module name: php_mbstring.dll, version: 5.6.10.0, time stamp: 0x5578c5c1 Exception code: 0xc0000005 Fault offset: 0x0000000000003e7b Faulting process id: 0xdf4 Faulting application start time: 0x01d0a545fad6c6d5 Faulting application path: D:\Apache24\bin\httpd.exe Faulting module path: D:\PHP\ext\php_mbstring.dll Report Id: 67edacb0-1139-11e5-baf4-00155d003b04 Thanks Previous Comments: ------------------------------------------------------------------------ [2015-05-22 13:58:40] jfha73 at gmail dot com Hey guys, Is this an OsTicket problem or MBString extension? They just release a new version of the ticket system and it still made my apache crash with the same php_mbstring.dll error. Thanks. ------------------------------------------------------------------------ [2015-05-05 17:29:25] jfha73 at gmail dot com By the way, this is the ticket with osTicket. https://github.com/osTicket/osTicket-1.8/issues/2008 ------------------------------------------------------------------------ [2015-05-05 17:28:28] jfha73 at gmail dot com I doubled the ThreadStackSize to 131072 and it still crashed, it worked a little better though. I opened a ticket with osTicket, they also asked me to add this to the directory where osTicket was installed and nothing. php_admin_value mbstring.func_overload 0 ------------------------------------------------------------------------ [2015-05-04 06:52:18] ab@php.net Installed osTicket and here's the backtrace I've got .................................... php5ts_debug.dll!match(const unsigned char * eptr, const unsigned char * ecode, const unsigned char * mstart, int offset_top, match_data * md, eptrblock * eptrb, unsigned int rdepth) Line 2061 C php5ts_debug.dll!match(const unsigned char * eptr, const unsigned char * ecode, const unsigned char * mstart, int offset_top, match_data * md, eptrblock * eptrb, unsigned int rdepth) Line 2061 C php5ts_debug.dll!match(const unsigned char * eptr, const unsigned char * ecode, const unsigned char * mstart, int offset_top, match_data * md, eptrblock * eptrb, unsigned int rdepth) Line 1878 C php5ts_debug.dll!match(const unsigned char * eptr, const unsigned char * ecode, const unsigned char * mstart, int offset_top, match_data * md, eptrblock * eptrb, unsigned int rdepth) Line 1541 C php5ts_debug.dll!php_pcre_exec(const real_pcre * argument_re, const pcre_extra * extra_data, const char * subject, int length, int start_offset, int options, int * offsets, int offsetcount) Line 6935 C php5ts_debug.dll!php_pcre_split_impl(pcre_cache_entry * pce, char * subject, int subject_len, _zval_struct * return_value, long limit_val, long flags, void * * * tsrm_ls) Line 1580 C php5ts_debug.dll!zif_preg_split(int ht, _zval_struct * return_value, _zval_struct * * return_value_ptr, _zval_struct * this_ptr, int return_value_used, void * * * tsrm_ls) Line 1515 C php5ts_debug.dll!zend_do_fcall_common_helper_SPEC(_zend_execute_data * execute_data, void * * * tsrm_ls) Line 559 C php5ts_debug.dll!ZEND_DO_FCALL_SPEC_CONST_HANDLER(_zend_execute_data * execute_data, void * * * tsrm_ls) Line 2600 C php5ts_debug.dll!execute_ex(_zend_execute_data * execute_data, void * * * tsrm_ls) Line 363 C php5ts_debug.dll!zend_execute(_zend_op_array * op_array, void * * * tsrm_ls) Line 389 C php5ts_debug.dll!zend_execute_scripts(int type, void * * * tsrm_ls, _zval_struct * * retval, int file_count, ...) Line 1342 C php5ts_debug.dll!php_execute_script(_zend_file_handle * primary_file, void * * * tsrm_ls) Line 2597 C php5apache2_4.dll!00007ff84cab66d0() Unknown The exception happens already when installing and is a stack overflow in PCRE. This is a usual thing with PCRE when too much recursion is caused. I don't think there's something to do about this right now, maybe trying to upgrade to PCRE 8.37 . But I guess it's a good thing anyway anyway to file a ticket for osTicket :) ... the arguments for the preg_split call are: regex "/;(?=(?:[^']*'[^']*')*[^']*$)/" subject "\nDROP TABLE IF EXISTS ost_api_key;\nCREATE TABLE ost_api_key (\n id int(10) unsigned NOT NULL auto_increment,\n isactive tinyint(1) NOT NULL default '1',\n ipaddr varchar(64) NOT NULL,\n `api... subject length happens to be of 31305 bytes limit -1 flags 0 There could be also an mbstring issue as you say, but ATM i don't come through to it. What you could also try is increasing the stack size for your Apache binary, then lets see further. Thanks. ------------------------------------------------------------------------ [2015-04-30 14:21:45] jfha73 at gmail dot com I forgot to include that I downloaded the open source version of osTicket version 1.9.7 ------------------------------------------------------------------------ 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=69528 -- Edit this bug report at https://bugs.php.net/bug.php?id=69528&edit=1