#35753 [Fbk->Opn]: mysql_fetch_field + mysql 5.0.17 crashes PHP

ID: 35753 User updated by: reweiner at yahoo dot com Reported By: reweiner at yahoo dot com -Status: Feedback +Status: Open Bug Type: MySQL related Operating System: RedHat AS 3.0 PHP Version: 5.1.1 New Comment: Backtrace: #0 0x0026b78b in strlen () from /lib/tls/libc.so.6 #1 0x01102c8b in add_property_string_ex (arg=0x860f7ec, key=0x1001 <Address 0x1001 out of bounds>, key_len=4, str=0x1001 <Address 0x1001 out of bounds>, duplicate=1) at /usr/src/redhat/BUILD/php-5.1.1/Zend/zend_API.c:1264 #2 0x005c5439 in zif_mysql_fetch_field (ht=4097, return_value=0x860f7ec, return_value_ptr=0x0, this_ptr=0x0, return_value_used=1) at /usr/src/redhat/BUILD/php-5.1.1/ext/mysql/php_mysql.c:2266 #3 0x01126f57 in zend_do_fcall_common_helper_SPEC (execute_data=0xbfffa5c0) at /usr/src/redhat/BUILD/php-5.1.1/Zend/zend_vm_execute.h:188 #4 0x01126758 in execute (op_array=0x860f61c) at /usr/src/redhat/BUILD/php-5.1.1/Zend/zend_vm_execute.h:88 #5 0x010ffbf9 in zend_execute_scripts (type=8, retval=0x0, file_count=3) at /usr/src/redhat/BUILD/php-5.1.1/Zend/zend.c:1090 #6 0x010c2cfe in php_execute_script (primary_file=0xbfffc950) at /usr/src/redhat/BUILD/php-5.1.1/main/main.c:1704 #7 0x01189a3e in php_handler (r=0x86028a8) at /usr/src/redhat/BUILD/php-5.1.1/sapi/apache2handler/sapi_apache2.c:584 #8 0x08068625 in ap_run_handler () #9 0x08068c3f in ap_invoke_handler () #10 0x08065266 in ap_process_request () #11 0x080608dc in _start () #12 0x086028a8 in ?? () #13 0x00000004 in ?? () #14 0x086028a8 in ?? () #15 0x0807245c in ap_run_pre_connection () #16 0x08072315 in ap_run_process_connection () #17 0x08066b01 in ap_graceful_stop_signalled () #18 0x08066d1a in ap_graceful_stop_signalled () #19 0x08066d76 in ap_graceful_stop_signalled () #20 0x080675cd in ap_mpm_run () #21 0x0806dbcf in main () Table definition: CREATE TABLE teste ( teste varchar(20) default NULL ) ENGINE=MyISAM DEFAULT CHARSET=latin1; INSERT INTO teste VALUES ('test'); Previous Comments: ------------------------------------------------------------------------ [2005-12-21 00:58:20] tony2001@php.net Also, it'd be good to have structure of the table too. ------------------------------------------------------------------------ [2005-12-21 00:57:49] tony2001@php.net Thank you for this bug report. To properly diagnose the problem, we need a backtrace to see what is happening behind the scenes. To find out how to generate a backtrace, please read http://bugs.php.net/bugs-generating-backtrace.php for *NIX and http://bugs.php.net/bugs-generating-backtrace-win32.php for Win32 Once you have generated a backtrace, please submit it to this bug report and change the status back to "Open". Thank you for helping us make PHP better. ------------------------------------------------------------------------ [2005-12-21 00:49:41] reweiner at yahoo dot com Description: ------------ Compiling php 5.1.1 on a machine that has mysql 5.0.17 installed crashes when calling mysql_fetch_field Reproduce code: --------------- <?php $conn = mysql_connect(....,....,....) or mysql_die(); mysql_select_db("teste", $conn); $result = mysql_query('select * from teste'); /* get column metadata */ $i = 0; while ($i < mysql_num_fields($result)) { echo "Information for column $i:<br />\n"; $meta = mysql_fetch_field($result, $i); $i++; echo "Meta $meta, $result\n"; } mysql_free_result($result); mysql_close($conn); ?> Expected result: ---------------- It should work Actual result: -------------- It crashes ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=35753&edit=1