Bug #12894 Updated: GD crashes PHP by using GD Format
ID: 12894
User updated by: alberty@neptunlabs.de
Reported By: alberty@neptunlabs.de
Old Status: Closed
Status: Open
Bug Type: GD related
Operating System: i686-pc-linux-gnu
PHP Version: 4.0.7-dev (latest CVS)
New Comment:
oops, i have post a message to this problem in php.dev under: "GD seg fault on save"
however, here is another code example to reproduce
the problem:
<?php
$im_main=ImageCreateFromGD('2.gd');
ImageJPEG($im_main);
?>
The problem is _not_ ImageJPEG! You can reproduce the problem also with
ImagePNG.
here is the backtrace:
----
Program received signal SIGSEGV, Segmentation fault.
gdImageJpegCtx (im=???, outfile=???, quality=???) at gd_jpeg.c:207
207 int val = im->tpixels[i][j];
(gdb) bt
#0 gdImageJpegCtx (im=???, outfile=???, quality=???) at gd_jpeg.c:207
---
you can download the '2.gd' file under:
http://www.alberty.de/2.gd
Previous Comments:
------------------------------------------------------------------------
[2001-10-02 19:05:23] sniper@php.net
No feedback and not enought information. If problem still
exists with latest CVS / GD reopen with required information.
------------------------------------------------------------------------
[2001-08-30 22:36:22] sniper@php.net
I can not reproduce this. Does this happen with that
example script included in this report?
Does this crash happen with specific images? Where could
I get those images? What was the configure line like
for configuring PHP ?
--Jani
------------------------------------------------------------------------
[2001-08-27 08:50:44] alberty@neptunlabs.de
Hi Jani,
here is the backtrace of the second script:
Program received signal SIGSEGV, Segmentation fault.
0x40411786 in gd_module_entry () from /usr/local/apache/current/libexec/libphp4.so
(gdb) bt
#0 0x40411786 in gd_module_entry () from /usr/local/apache/current/libexec/libphp4.so
(gdb)
the script fails only if you call ImagePNG after the ImageCreateFromGD.
Also ImageGD2 creates corrupted files, but this is another bug ...
Regards,
--
Steve
------------------------------------------------------------------------
[2001-08-22 13:04:34] sniper@php.net
I can't get your scripts to crash.
Could you please generate a GDB backtrace of the crash?
--Jani
------------------------------------------------------------------------
[2001-08-22 12:13:54] alberty@neptunlabs.de
Sorry, my submitted PHP Version was wrong. I mean 4.0.7-dev from the latest CVS.
The script crash under cvs version.
Regards,
Steve
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