From: skissane at iips dot mq dot edu dot au
Operating system: Linux
PHP version: 5.0.4
PHP Bug Type: MSSQL related
Bug description: segfault in _emalloc called from
php_mssql_get_column_content_with_type
Description:
------------
Segmentation fault.
Reproduce code:
---------------
<?
$q = mssql_connect("<server>","<username>","<password>");
$i = mssql_query("SELECT * FROM MSSQLTrace_99",$q);
while (mssql_fetch_row($i) !== FALSE);
Where the MSSQLTrace_99 table is created by the following MSSQL script (a
bit too big for a bug database):
http://www.iips.mq.edu.au/php_mssql_bug.txt
Expected result:
----------------
No output.
Actual result:
--------------
Backtrace:
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 16384 (LWP 29878)]
0x40440bef in _int_malloc () from /lib/i686/libc.so.6
(gdb) bt
#0 0x40440bef in _int_malloc () from /lib/i686/libc.so.6
#1 0x404422ac in malloc () from /lib/i686/libc.so.6
#2 0x0815ac58 in _emalloc (size=1078913472) at
/home/skissane/php-5.0.4/Zend/zend_alloc.c:182
#3 0x0809151e in php_mssql_get_column_content_with_type
(mssql_ptr=0x827079c, offset=1078913472, result=0x828319c,
column_type=1078910980)
at /home/skissane/php-5.0.4/ext/mssql/php_mssql.c:877
#4 0x08091daf in _mssql_fetch_batch (mssql_ptr=0x827079c,
result=0x826b5cc, retvalue=-1) at
/home/skissane/php-5.0.4/ext/mssql/php_mssql.c:1104
#5 0x0809222e in zif_mssql_query (ht=33, return_value=0x8270a54,
this_ptr=0x0, return_value_used=1) at
/home/skissane/php-5.0.4/ext/mssql/php_mssql.c:1225
#6 0x081882ce in zend_do_fcall_common_helper (execute_data=0xbfffd510,
opline=0x826f980, op_array=0x826b53c)
at /home/skissane/php-5.0.4/Zend/zend_execute.c:2727
#7 0x081858ca in execute (op_array=0x826b53c) at
/home/skissane/php-5.0.4/Zend/zend_execute.c:1406
#8 0x0816b79f in zend_execute_scripts (type=8, retval=0x0, file_count=3)
at /home/skissane/php-5.0.4/Zend/zend.c:1069
#9 0x0813eb73 in php_execute_script (primary_file=0xbffff8d0) at
/home/skissane/php-5.0.4/main/main.c:1632
#10 0x0818ebe8 in main (argc=2, argv=0xbffff954) at
/home/skissane/php-5.0.4/sapi/cli/php_cli.c:946
#11 0x403f3912 in __libc_start_main () from /lib/i686/libc.so.6
--
Edit bug report at http://bugs.php.net/?id=33201&edit=1
--
Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=33201&r=trysnapshot4
Try a CVS snapshot (php5.0):
http://bugs.php.net/fix.php?id=33201&r=trysnapshot50
Try a CVS snapshot (php5.1):
http://bugs.php.net/fix.php?id=33201&r=trysnapshot51
Fixed in CVS: http://bugs.php.net/fix.php?id=33201&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=33201&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=33201&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=33201&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=33201&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=33201&r=support
Expected behavior: http://bugs.php.net/fix.php?id=33201&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=33201&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=33201&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=33201&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=33201&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=33201&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=33201&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=33201&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=33201&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=33201&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=33201&r=mysqlcfg
