#26696 [NEW]: When using string as implicit array, segfault in PHP5.0.0b3

From: saruman at northernhacking dot org Operating system: Linux RH9 PHP version: 5.0.0b2 (beta2) PHP Bug Type: Reproducible crash Bug description: When using string as implicit array, segfault in PHP5.0.0b3 Description: ------------ The ONLY change I'd done is install php-5.0.0b3 with the same config as the php-5.0.0b2 it replaced. Config vars: Configure Command './configure' '--with-pear' '--with-pgsql' '--with-apxs=/usr/local/apache/bin/apxs' '--enable-mbstring' '--prefix=/usr/local/php5' '--with-libxml-dir=/usr' Using this with php-5.0.0b2 works as expected. This behavior of a string is required by DB.php in PEAR, amongst others. Reproduce code: --------------- <?php //$str = Array('a', 's', 'd', 'd', '/', '?'); $str = 'asdd/?'; $len = strlen($str); for ($i = 0; $i < $len; $i++) { switch ($str[$i]) { case '?': echo '?'; break; } } ?> Did not crash. Expected result: ---------------- ?Did not crash. Actual result: -------------- From error_log: [Mon Dec 22 14:15:38 2003] [notice] child pid 30170 exit signal Segmentation fault (11) [Mon Dec 22 14:15:38 2003] [notice] child pid 30187 exit signal Segmentation fault (11) The two response are because MSIE seems to do a second query when the first one unexpectedly close. -- Edit bug report at http://bugs.php.net/?id=26696&edit=1 -- Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=26696&r=trysnapshot4 Try a CVS snapshot (php5): http://bugs.php.net/fix.php?id=26696&r=trysnapshot5 Fixed in CVS: http://bugs.php.net/fix.php?id=26696&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=26696&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=26696&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=26696&r=needscript Try newer version: http://bugs.php.net/fix.php?id=26696&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=26696&r=support Expected behavior: http://bugs.php.net/fix.php?id=26696&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=26696&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=26696&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=26696&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=26696&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=26696&r=dst IIS Stability: http://bugs.php.net/fix.php?id=26696&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=26696&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=26696&r=float