#31070 [NEW]: Possible integer overflow

From: dennis at inmarket dot lviv dot ua Operating system: Linux PHP version: 5.0.2 PHP Bug Type: Unknown/Other Function Bug description: Possible integer overflow Description: ------------ I believe this is related to bug 28945, but it is in No Feedback mode, and I could not contact him to reopen it. It OCASSIONALLY happens in my app (it is a large set of classes), and writes to the error log even more amazing thing: here is the sample error log entry: [12-Nov-2004 15:50:52] PHP Fatal error: Possible integer overflow in memory allocation (24 * 4294967295 + 0) in /** * Returns a SQLDataBase implementation for database $name * * @param string $name database name * @return SQLDataBase a SQLDataBase implementation for database $name */ on line 11 The file that this scratch is ripped from is class definition, where no memory allocation takes place (this is an abstract class) Reproduce code: --------------- It is not possible to reproduce this bug, it is a big set of classes (about 170Kb source code), but it is caused by the engine I believe (judging from how the error is reported) Expected result: ---------------- At least the error log should be: [12-Nov-2004 15:50:52] PHP Fatal error: Possible integer overflow in memory allocation (24 * 4294967295 + 0) in <filename> on <line number> Actual result: -------------- 12-Nov-2004 15:50:52] PHP Fatal error: Possible integer overflow in memory allocation (24 * 4294967295 + 0) in /** * Returns a SQLDataBase implementation for database $name * * @param string $name database name * @return SQLDataBase a SQLDataBase implementation for database $name */ on line 11 -- Edit bug report at http://bugs.php.net/?id=31070&edit=1 -- Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=31070&r=trysnapshot4 Try a CVS snapshot (php5.0): http://bugs.php.net/fix.php?id=31070&r=trysnapshot50 Try a CVS snapshot (php5.1): http://bugs.php.net/fix.php?id=31070&r=trysnapshot51 Fixed in CVS: http://bugs.php.net/fix.php?id=31070&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=31070&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=31070&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=31070&r=needscript Try newer version: http://bugs.php.net/fix.php?id=31070&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=31070&r=support Expected behavior: http://bugs.php.net/fix.php?id=31070&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=31070&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=31070&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=31070&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=31070&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=31070&r=dst IIS Stability: http://bugs.php.net/fix.php?id=31070&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=31070&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=31070&r=float MySQL Configuration Error: http://bugs.php.net/fix.php?id=31070&r=mysqlcfg