Bug #66625 [NEW]: imagescale() segmentation fault on 64bits environment
From: yoya at awm dot jp
Operating system: Any
PHP version: 5.5.8
Package: GD related
Bug Type: Bug
Bug description:imagescale() segmentation fault on 64bits environment
Description:
------------
* ext/gd.c
----
PHP_FUNCTION(imagescale)
{
zval *IM;
gdImagePtr im;
gdImagePtr im_scaled;
int new_width, new_height = -1;
gdInterpolationMethod method = GD_BILINEAR_FIXED;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "rl|ll",
&IM, &new_width, &new_height, &method) == FAILURE) {
----
On 64 bits environment ,'l'(long) have 64 bits width, int and
gdInterpolationMethod type have 32 bits, so IM pointer be destroyed by
value of other variables.
This problem related to id:65171, I guess.
- https://bugs.php.net/bug.php?id=65171
Test script:
---------------
<?php
$data = file_get_contents($argv[1]);
$im = ImageCreateFromString($data);
$im2 = imagescale($im, 256, 192, IMG_NEAREST_NEIGHBOUR);
imagepng($im2, 'output.png');
Actual result:
--------------
Segmentation fault
--
Edit bug report at https://bugs.php.net/bug.php?id=66625&edit=1
--
Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=66625&r=trysnapshot54
Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=66625&r=trysnapshot55
Try a snapshot (trunk): https://bugs.php.net/fix.php?id=66625&r=trysnapshottrunk
Fixed in SVN: https://bugs.php.net/fix.php?id=66625&r=fixed
Fixed in release: https://bugs.php.net/fix.php?id=66625&r=alreadyfixed
Need backtrace: https://bugs.php.net/fix.php?id=66625&r=needtrace
Need Reproduce Script: https://bugs.php.net/fix.php?id=66625&r=needscript
Try newer version: https://bugs.php.net/fix.php?id=66625&r=oldversion
Not developer issue: https://bugs.php.net/fix.php?id=66625&r=support
Expected behavior: https://bugs.php.net/fix.php?id=66625&r=notwrong
Not enough info: https://bugs.php.net/fix.php?id=66625&r=notenoughinfo
Submitted twice: https://bugs.php.net/fix.php?id=66625&r=submittedtwice
register_globals: https://bugs.php.net/fix.php?id=66625&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=66625&r=php4
Daylight Savings: https://bugs.php.net/fix.php?id=66625&r=dst
IIS Stability: https://bugs.php.net/fix.php?id=66625&r=isapi
Install GNU Sed: https://bugs.php.net/fix.php?id=66625&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=66625&r=float
No Zend Extensions: https://bugs.php.net/fix.php?id=66625&r=nozend
MySQL Configuration Error: https://bugs.php.net/fix.php?id=66625&r=mysqlcfg
Thread (4 messages)
- yoya at awm dot jp