436843 - crash if javascript has infinite recursion

Status: RESOLVED INCOMPLETE

(Core :: General, defect)

Description

[ebaynegs]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.0; en-GB; rv:1.9b4) Gecko/2008030714 Firefox/3.0b4
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-GB; rv:1.9b4) Gecko/2008030714 Firefox/3.0b4

the following javascript causes the browser to crash

<script>
var getElementsByClassName = function (classname,tagname) {
   if (document.getElementsByClassName)
     return getElementsByClassName(classname,tagname);
   if(unsafeWindow.Y.U.Dom.getElementsByClassName)
     return unsafeWindow.Y.U.Dom.getElementsByClassName(classname,tagname);
   else
     return false;

}

getElementsByClassName();
</script>


Reproducible: Always

Steps to Reproduce:
1. load test page

Actual Results:  
browser crashes

Expected Results:  
browser shouldnt crash

Comment 1

[ebaynegs]

actually the test case can be reduced to the following code
<script>
var getElementsByClassName = function (classname,tagname) {
   if (document.getElementsByClassName)
     return getElementsByClassName(classname,tagname);
}

getElementsByClassName();
</script>

Comment 2

[Carsten Book [:Tomcat]]

works for me with Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.9) Gecko/2008052906 Firefox/3.0 (Firefox 3 RC2 Candidate), no crash on testurl

Comment 3

[Mats Palmgren (inactive)]

Works for me, Firefox 3.0 RC1 on Linux and MacOSX.
http://www.mozilla.com/firefox/all-rc.html

Error Console says:
Error: too much recursion
Source File: http://steeev.freehostia.com/test/jsbug.htm
Line: 4

Comment 4

[Jesse Ruderman on Windows]

Attachment: testcase from comment 1

Comment 5

[Jesse Ruderman on Windows]

Infinitely-recursing JavaScript really shouldn't cause a crash.  ebaynegs, does it still crash for you in Firefox 3.5?