#31478 [NEW]: SegFault/Memory Leak

From: the_deppchef at hotmail dot com Operating system: Linux 2.4.27 (Debian) PHP version: 5CVS-2005-01-10 (dev) PHP Bug Type: Reproducible crash Bug description: SegFault/Memory Leak Description: ------------ Well, reading the manual about empty() you should think it checks whether the given variable is set before it checks whether it is empty. (Given example there: if (empty($var)) { echo '$var is either 0, empty, or not set at all'; }) However, when $var really is not set, i get a Memory Leak (in a big script). I reduced the script to the code below and now even get a Segmentation fault. Reproduce code: --------------- <?php if(empty($foo)){ echo 'empty'; }else{ echo 'not empty'; } ?> Expected result: ---------------- Echoing "empty" and nothing else. Actual result: -------------- Echoing "empty" Valgrind says: http://tdc.medieval-wars.de/valgrind.txt.pid27963 Probably most important: ==27963== Process terminating with default action of signal 11 (SIGSEGV) ==27963== Access not within mapped region at address 0xF45 ==27963== at 0x81EDD17: zend_execute_scripts (/home/necmon/php5-200501101930/Zend/zend.c:1059) ==27963== by 0x819E50D: php_execute_script (/home/necmon/php5-200501101930/main/main.c:1636) ==27963== by 0x8277DAE: main (/home/necmon/php5-200501101930/sapi/cli/php_cli.c:944) (Note: this does NOT only happen with the cli version!) -- Edit bug report at http://bugs.php.net/?id=31478&edit=1 -- Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=31478&r=trysnapshot4 Try a CVS snapshot (php5.0): http://bugs.php.net/fix.php?id=31478&r=trysnapshot50 Try a CVS snapshot (php5.1): http://bugs.php.net/fix.php?id=31478&r=trysnapshot51 Fixed in CVS: http://bugs.php.net/fix.php?id=31478&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=31478&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=31478&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=31478&r=needscript Try newer version: http://bugs.php.net/fix.php?id=31478&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=31478&r=support Expected behavior: http://bugs.php.net/fix.php?id=31478&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=31478&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=31478&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=31478&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=31478&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=31478&r=dst IIS Stability: http://bugs.php.net/fix.php?id=31478&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=31478&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=31478&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=31478&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=31478&r=mysqlcfg