138614 - Mozilla crashes when recieving a null .GIF image

Status: RESOLVED DUPLICATE of bug 138280

(Core :: Graphics: ImageLib, defect)

Description

[Sean Cross]

From Bugzilla Helper:
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:0.9.9+)
Gecko/20020419
BuildID:    2002041903

In order to prevent the log file on the company intranet from filling up with
"404" errors, I "touched" three .gif files that were being refered to by "MRTG",
an SNMP monitor, effectively creating three 0-byte images.

Now, whenever those pages are viewed, Mozilla crashes.  If necessary, I will try
to prune down the page to help.

Reproducible: Always
Steps to Reproduce:
1. Replace the three images at the bottom of the output generated by MRTG with
0-byte images.

Actual Results:  Mozilla crashed

Expected Results:  Displayed the page

Comment 1

[Vadim Berezniker]

It would be nice if you could cut it down...
I just tried creating a html file that references a bunch of 0 size gifs and
nothing happened.

linux trunk 2002041817

Comment 2

[Vadim Berezniker]

I took the sample report from the mrtg homepage and saved it locally.
Made the images reference the three empty gifs and I got no crash.
I also tried renaming the files to .png (since that's the format the actual page
uses) and also no crash.

Comment 3

[Sean Cross]

It appears to also be part of SSL.  Trimmed down page is here:
<a
href="https://9bit.net/~scross/crash.html">https://9bit.net/~scross/crash.html</a>

In order to reproduce the bug, go to that page.  You may have to hit "refresh"
to get it to crash.

Comment 4

[Vadim Berezniker]

crashes with same stack trace as bug 138280
this testcase will be very helpful in the other bug probably

*** This bug has been marked as a duplicate of 138280 ***