ID: 36802
Comment by: judas dot iscariote at gmail dot com
Reported By: mdalton at galaxytelecom dot net
Status: Assigned
Bug Type: Reproducible crash
Operating System: Linux
PHP Version: 5.1.2
Assigned To: georg
New Comment:
although Im not an expert on this,
seems the OP example lacks of a valid internal "mysql_link" (created
with mysqli_real_connect or similar ) and some validation is missing in
the mysqli extension an that result in a crash...
I deduce this because using a valid mysqli link the function works as
expected.
This is a bug anyway, no userspace code should crash PHP.
Previous Comments:
------------------------------------------------------------------------
[2006-03-20 23:28:15] judas dot iscariote at gmail dot com
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 46912513283232 (LWP 30938)]
0x00002aaaae4b9c65 in mysql_send_query () from
/usr/lib64/libmysqlclient.so.15
(gdb) bt
#0 0x00002aaaae4b9c65 in mysql_send_query () from
/usr/lib64/libmysqlclient.so.15
#1 0x00002aaaae4b9cd9 in mysql_real_query () from
/usr/lib64/libmysqlclient.so.15
#2 0x00002aaaae4ba011 in mysql_set_character_set () from
/usr/lib64/libmysqlclient.so.15
#3 0x00002aaaae6dcbc2 in zif_mysqli_set_charset (ht=<value optimized
out>, return_value=0x950488,
return_value_ptr=<value optimized out>, this_ptr=<value optimized
out>, return_value_used=<value optimized out>)
at /usr/src/debug/php-5.1.2/ext/mysqli/mysqli_nonapi.c:329
#4 0x00000000005555d0 in zend_do_fcall_common_helper_SPEC
(execute_data=0x7fffffb1d2a0) at zend_vm_execute.h:200
#5 0x0000000000554c53 in execute (op_array=0x9657a8) at
zend_vm_execute.h:92
#6 0x000000000053857c in zend_execute_scripts (type=8, retval=<value
optimized out>, file_count=3)
at /usr/src/debug/php-5.1.2/Zend/zend.c:1109
#7 0x00000000004fac35 in php_execute_script
(primary_file=0x7fffffb1f950) at
/usr/src/debug/php-5.1.2/main/main.c:1725
#8 0x00000000005c9285 in main (argc=2, argv=0x7fffffb1fb08) at
/usr/src/debug/php-5.1.2/sapi/cli/php_cli.c:1092
php -v
PHP 5.1.3RC2-dev (cli) (built: Mar 20 2006 17:23:27)
------------------------------------------------------------------------
[2006-03-20 19:51:37] [EMAIL PROTECTED]
Please try using this CVS snapshot:
http://snaps.php.net/php5.1-latest.tar.gz
For Windows:
http://snaps.php.net/win32/php5.1-win32-latest.zip
If you still can reproduce it with plain PHP, please provide gdb
backtrace (see http://bugs.php.net/bugs-generating-backtrace.php).
------------------------------------------------------------------------
[2006-03-20 19:49:08] mdalton at galaxytelecom dot net
Description:
------------
While trying to call set_charset method on a mysqli object php crashes
with a signal 11.
Situation tested on a stock ubuntu php + mysqli + mysql 5.0 setup, and
on a home rolled apache+hardened-php+mysql 5.0 system
Reproduce code:
---------------
<?php
$mysqli = mysqli_init ();
$mysqli->set_charset ( 'utf8' );
echo $mysqli->character_set_name ();
?>
Expected result:
----------------
script should echo 'utf8'
Actual result:
--------------
The apache child process bombs with a signal 11
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/?id=36802&edit=1
