[Webkit-unassigned] [Bug 90028] New: There is not an exit to escape out of the recursive call written wrong

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=90028

           Summary: There is not an exit to escape out of the recursive
                    call written wrong
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Other
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: Major
          Priority: P2
         Component: JavaScriptCore
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: hojong.han at samsung.com
                CC: ggaren at apple.com, oliver at apple.com,
                    barraclough at apple.com


Webkit is locked up while loading "http://bonds.finam.ru/issue/info".
What I've analyzed is that "http://bonds.finam.ru/scripts/lizard/library/base.js" causes sort of recursive call.

Take a look into script codes below.
======================================================================================
Object.prototype.toString = Array.prototype.toString = Object.prototype.ToString = Array.prototype.ToString = function() {
    var cont = [];
    for (var k in this) {
        if (cont.length) cont[cont.length-1] += ",";
        var v = this[k];
        var vs = '';
        if (typeof(v) != 'undefined') {
            if (v != null) {
                if (typeof(v.constructor) != 'undefined') {
                    try{
                    if (v.constructor == String) {
                        s = v.split('\\').join('\\\\').split('"').join('\\"');
                        vs = '"'+s + '"';
                    } else {
                        vs = v.toString();
                    }
                    }
                    catch(err)
                    {
                    }
    ... skip ...
}
======================================================================================

Chrome, FireFox, some other browsers are not frozen while loading "http://bonds.finam.ru/issue/info".
Is there any other way to detour this kind of problem?

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