Bug #61387 [NEW]: NULL valued anonymous column causes segfault in odbc_fetch_array

From: Operating system: windows server 2003 R2 PHP version: 5.3.10 Package: ODBC related Bug Type: Bug Bug description:NULL valued anonymous column causes segfault in odbc_fetch_array Description: ------------ odbc_fetch_array segfaults when the result consists of one-column anonymous NULL-valued tuple our environment: OS: windows server 2003 R2, apache 2.2 + mod_fcgid + PHP5.3.10 (reproducible with 5.3.6) DB: SQL Server 2005 odbc driver: SQL Server Native Client 10.0 tried also with postgres, it seems to me that postgres amends the result with generated name of that column ('sum' in this case) Test script: --------------- $conn = odbc_connect( "Driver={SQL Server Native Client 10.0};Server=<some microsoft sql server>;Database=<any db name>;Trusted_Connection=yes" , '' , '' ); $res = odbc_exec( $conn , 'SELECT SUM(1) FROM information_schema.tables WHERE 3 = 2' ); $row = odbc_fetch_array($res); odbc_free_result($res); odbc_close($conn); var_dump($row); Expected result: ---------------- array(1) {[0]=> NULL} or E_WARNING Actual result: -------------- segfault, apache log says: [warn] [client x.x.x.x] (OS 109)The pipe has been ended. : mod_fcgid: get overlap result error [error] [client x.x.x.x] Premature end of script headers: foo.php [info] mod_fcgid: process C:/Webserver/Apache2.2/php-5.3.10/php-cgi.exe(4420) exit(communication error), return code -1073741819 eventlog says: Faulting application php-cgi.exe, version 5.3.10.0, faulting module php5.dll, version 5.3.10.0, fault address 0x000858df. PHP itself does not produce any sort of output -- Edit bug report at https://bugs.php.net/bug.php?id=61387&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=61387&r=trysnapshot54 Try a snapshot (PHP 5.3): https://bugs.php.net/fix.php?id=61387&r=trysnapshot53 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=61387&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=61387&r=fixed Fixed in SVN and need be documented: https://bugs.php.net/fix.php?id=61387&r=needdocs Fixed in release: https://bugs.php.net/fix.php?id=61387&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=61387&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=61387&r=needscript Try newer version: https://bugs.php.net/fix.php?id=61387&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=61387&r=support Expected behavior: https://bugs.php.net/fix.php?id=61387&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=61387&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=61387&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=61387&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=61387&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=61387&r=dst IIS Stability: https://bugs.php.net/fix.php?id=61387&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=61387&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=61387&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=61387&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=61387&r=mysqlcfg