php.net |  support |  documentation |  report a bug |  advanced search |  search howto |  statistics |  random bug |  login

go to bug id or search bugs for

Bug #38112 Segmentation fault in imagecreatefromgif
Submitted: 2006-07-16 10:05 UTC Modified: 2006-07-18 06:35 UTC
From: bduclaux at yahoo dot com Assigned: pajoye (profile)
Status: Closed Package: GD related
PHP Version: 5.1.4 OS: Linux
Private report: No CVE-ID: None
View Developer Edit
Welcome back! If you're the original bug submitter, here's where you can edit the bug or add additional notes.
If you forgot your password, you can retrieve your password here.
Password:
Status:
Package:
Bug Type:
Summary:
From: bduclaux at yahoo dot com
New email:
PHP Version: OS:

 

 [2006-07-16 10:05 UTC] bduclaux at yahoo dot com 
Description:
------------
imagecreatefromgif segfaults when broken gif images are loaded

Reproduce code:
---------------
<?php
$im=imagecreatefromgif("http://www.compuworldfrance.com/boutique/images_produits/26HEBOITIER0010_1.gif");
?>

Expected result:
----------------
Should not segfault !

Actual result:
--------------
The bug comes from the file php-5.1.4/ext/gd/libgd/gd_gif_in.c:394

Here is the full trace :
(gdb) bt
#0  LWZReadByte (fd=0x856c96c, flag=Variable "flag" is not available.
) at /home/sysop/php-5.1.4/ext/gd/libgd/gd_gif_in.c:394
#1  0x080ead3c in ReadImage (im=0x8569604, fd=0x856c96c, len=130, height=130, cmap=0xbfffcd80, interlace=0)
    at /home/sysop/php-5.1.4/ext/gd/libgd/gd_gif_in.c:520
#2  0x080eb008 in php_gd_gdImageCreateFromGifCtx (fd=0x856c96c) at /home/sysop/php-5.1.4/ext/gd/libgd/gd_gif_in.c:199
#3  0x080d25fb in _php_image_create_from (ht=Variable "ht" is not available.
) at /home/sysop/php-5.1.4/ext/gd/gd.c:1608
#4  0x080d281b in zif_imagecreatefromgif (ht=292440, return_value=0x4000000, return_value_ptr=0x0, this_ptr=0x0, 
    return_value_used=1) at /home/sysop/php-5.1.4/ext/gd/gd.c:1674
#5  0x0822df8c in zend_do_fcall_common_helper_SPEC (execute_data=0xbfffd510) at /home/sysop/php-5.1.4/Zend/zend_vm_execute.h:200
#6  0x0822d971 in execute (op_array=0x85674e4) at /home/sysop/php-5.1.4/Zend/zend_vm_execute.h:92
#7  0x08216252 in zend_execute_scripts (type=8, retval=0x0, file_count=3) at /home/sysop/php-5.1.4/Zend/zend.c:1109
#8  0x081e25d0 in php_execute_script (primary_file=0xbffffa10) at /home/sysop/php-5.1.4/main/main.c:1732
#9  0x08290111 in main (argc=2, argv=0xbffffae4) at /home/sysop/php-5.1.4/sapi/cli/php_cli.c:1092

Patches

Pull Requests

History

AllCommentsChangesGit/SVN commitsRelated reports
 [2006-07-16 10:37 UTC] pajoye@php.net 
Only for the record, the gif image is corrupt. Fix coming.
 [2006-07-16 11:10 UTC] pajoye@php.net 
Fixed in PHP_5_2. I will close the bug once I merge it in all branches.
 [2006-07-18 06:35 UTC] pajoye@php.net 
This bug has been fixed in CVS.

Snapshots of the sources are packaged every three hours; this change
will be in the next snapshot. You can grab the snapshot at
http://snaps.php.net/.
 
Thank you for the report, and for helping us make PHP better.
 
PHP Copyright © 2001-2024 The PHP Group
All rights reserved. 		Last updated: Thu Nov 21 14:01:29 2024 UTC