Bug 19517

Summary: DOM modification of textArea causes Access Violation (NULL pointer?)
Product: WebKit Reporter: Berend-Jan Wever <skylined>
Component: DOMAssignee: Alexey Proskuryakov <ap>
Severity: Normal Keywords: InRadar
Priority: P1    
Version: 525.x (Safari 3.1)   
Hardware: All   
OS: All   
URL: http://skypher.com/SkyLined/Repro/Safari/019a3239%20NULL/repro.html
Description Flags
proposed patch darin: review+

Description Berend-Jan Wever 2008-06-12 04:24:58 PDT
I found that the following javascript causes an Access Violation. This appears
to be a NULL pointer:

<BODY onload="go()"><SCRIPT>
    function go() {
        o = document.createElement("textArea");

Tested with Safari 3.1.1.

Marked as security, I'm not sure if you treat DoS as a security issue, so
erring on the safe side.
Comment 1 Berend-Jan Wever 2008-06-13 06:29:21 PDT
Changing priority and security flag
Comment 2 Mark Rowe (bdash) 2008-06-13 14:52:41 PDT
Comment 3 Arvind 2009-05-19 23:13:13 PDT
I am trying to analyse this bug.But when I open the safari window in debug mode I am not able to reproduce this scenario.Is there a solution to reproduce this scenario in debug mode as well ?
Comment 4 Alexey Proskuryakov 2009-05-20 03:25:37 PDT
I cannot reproduce this with nightlies either (but I can reproduce with Safari 3.2.3).
Comment 5 Alexey Proskuryakov 2009-05-20 03:32:14 PDT
Created attachment 30503 [details]
proposed patch

So, let's just add a test.
Comment 6 Alexey Proskuryakov 2009-05-21 05:35:18 PDT
Test committed r43966.