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Bug #40153 Segfault with external gd and imagefill
Submitted: 2007-01-17 12:53 UTC Modified: 2007-01-17 12:59 UTC
From: kore@php.net Assigned: pajoye (profile)
Status: Not a bug Package: GD related
PHP Version: 5.2.0 OS: Linux 2.6.19
Private report: No CVE-ID: None
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 [2007-01-17 12:53 UTC] kore@php.net 
Description:
------------
Segfault occurs when using imagefill() with external GD library.

Extract from `php -i`
Configure Command =>  './configure' ... '--with-gd=/usr' ...
GD Support => enabled
GD Version => 2.0 or higher

Installed GD version: gd-2.0.33 (Gentoo)

Reproduce code:
---------------
<?php
$image = imagecreatetruecolor( 400, 200 );
$bgColor = imagecolorallocatealpha( $image, 255, 255, 255, 127 );
imagefill( $image, 1, 1, $bgColor );
?>

Expected result:
----------------
Image filled with transparent white

Actual result:
--------------
Segfault

(gdb) run bug_9870_2.php
Starting program: /usr/bin/php bug_9870_2.php
[Thread debugging using libthread_db enabled]
[New Thread -1220794704 (LWP 4989)]

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1220794704 (LWP 4989)]
0xb7d46dd2 in gdImageSetPixel () from /usr/lib/libgd.so.2
(gdb) bt
#0  0xb7d46dd2 in gdImageSetPixel () from /usr/lib/libgd.so.2
#1  0x00000000 in ?? ()

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 [2007-01-17 12:59 UTC] pajoye@php.net 
It is not a php bug.

See http://bugs.libgd.org/4
 
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