From: php at eder dot us
Operating system: FC 4, FreeBSD 5.3
PHP version: 5.0.5
PHP Bug Type: GD related
Bug description: ImageTrueColorToPalette crashes when ncolors is zero
Description:
------------
When ImageTrueColorToPalette is called with ncolors = to zero (or an
uninitialized variable), it segfaults.
Note: if $img is not loaded with a valid jpg, it will not crash, simply
error on bad image resource. So make sure 'test.jpg' points to a valid
jpeg.
Reproduce code:
---------------
<?php
$img = imagecreatefromjpeg('test.jpg');
ImageTrueColorToPalette($img, false, 0);
?>
Expected result:
----------------
No expected output, simply $img should be an indexed image.
Actual result:
--------------
Segmentation fault
--
Edit bug report at http://bugs.php.net/?id=34996&edit=1
--
Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=34996&r=trysnapshot4
Try a CVS snapshot (php5.0):
http://bugs.php.net/fix.php?id=34996&r=trysnapshot50
Try a CVS snapshot (php5.1):
http://bugs.php.net/fix.php?id=34996&r=trysnapshot51
Fixed in CVS: http://bugs.php.net/fix.php?id=34996&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=34996&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=34996&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=34996&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=34996&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=34996&r=support
Expected behavior: http://bugs.php.net/fix.php?id=34996&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=34996&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=34996&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=34996&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=34996&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=34996&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=34996&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=34996&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=34996&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=34996&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=34996&r=mysqlcfg
