From: Operating system: PHP version: 5.3.3 Package: PDO related Bug Type: Bug Bug description:Some calls to pdo_firebird getAttribute crash
Description: ------------ There is a bug and a few omissions in firebird_handle_get_attribute. Most significantly it declares tmp[200] which is used to store the server version. Unfortunately, a typical server version string is now over 300 bytes long. So this call just blows the driver out of the water, leaves this error in the apache log: *** stack smashing detected ***: /usr/sbin/httpd2-prefork terminated [Tue Nov 16 13:42:53 2010] [notice] child pid 11656 exit signal Segmentation fault (11) and the user is left staring at a server timeout error in the browser. This is easily fixed by declaring tmp[] to be larger. Less seriously, these attributes are not handled: PDO_ATTR_PREFETCH, PDO_ATTR_TIMEOUT, PDO_ATTR_FETCH_TABLE_NAMES so if they are called outside a try..catch then the call will fail badly. It is not obvious that a try..catch should be required so it is probably better to just handle these cases in the driver. I've attached a patch which fixes all of these issues. -- Edit bug report at http://bugs.php.net/bug.php?id=53323&edit=1 -- Try a snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=53323&r=trysnapshot52 Try a snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=53323&r=trysnapshot53 Try a snapshot (trunk): http://bugs.php.net/fix.php?id=53323&r=trysnapshottrunk Fixed in SVN: http://bugs.php.net/fix.php?id=53323&r=fixed Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=53323&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=53323&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=53323&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=53323&r=needscript Try newer version: http://bugs.php.net/fix.php?id=53323&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=53323&r=support Expected behavior: http://bugs.php.net/fix.php?id=53323&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=53323&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=53323&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=53323&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=53323&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=53323&r=dst IIS Stability: http://bugs.php.net/fix.php?id=53323&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=53323&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=53323&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=53323&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=53323&r=mysqlcfg