From: eka1970 at mail dot ru
Operating system: red hat 7.3
PHP version: 4.4.0
PHP Bug Type: Arrays related
Bug description: memory overwrite
Description:
------------
hundreds of thousands of "$a[]= ..." and "array_pop()" calls triggers
memory overwrite.
Reproduce code:
---------------
<?php
$a = array(0,1,2,3,4,5,6,7,8,9,10);
$paths = array();
$stack = array();
for($i=0; $i<100000; $i++) {
$steps = mt_rand(2,6);
// move forward
for($j=0; $j<$steps; $j++) { $stack[] = array('x'=>$a[$j]); }
$paths[] = $stack;
// move backward
for($j=0; $j<$steps; $j++) { array_pop($stack); }
}
print_r($a);
?>
Expected result:
----------------
array $a is never modified in the code, but when you print it at the end
of the script it spills out a whole lot of unexpected reccursions or just
dies with no output.
--
Edit bug report at http://bugs.php.net/?id=34269&edit=1
--
Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=34269&r=trysnapshot4
Try a CVS snapshot (php5.0):
http://bugs.php.net/fix.php?id=34269&r=trysnapshot50
Try a CVS snapshot (php5.1):
http://bugs.php.net/fix.php?id=34269&r=trysnapshot51
Fixed in CVS: http://bugs.php.net/fix.php?id=34269&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=34269&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=34269&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=34269&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=34269&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=34269&r=support
Expected behavior: http://bugs.php.net/fix.php?id=34269&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=34269&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=34269&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=34269&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=34269&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=34269&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=34269&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=34269&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=34269&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=34269&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=34269&r=mysqlcfg
