[Webkit-unassigned] [Bug 70840] New: Crash in WebCore::reportException(JSC::ExecState*, JSC::JSValue) due to assert failure

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=70840

           Summary: Crash in WebCore::reportException(JSC::ExecState*,
                    JSC::JSValue) due to assert failure
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Macintosh Intel
               URL: http://sadmentv.blogspot.com/2011/10/head-creative-dir
                    ector-s.html
        OS/Version: Mac OS X 10.7
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: WebCore JavaScript
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: rex_4539 at yahoo.com


Created an attachment (id=112380)
 --> (https://bugs.webkit.org/attachment.cgi?id=112380&action=review)
Crash log.

r98372

Reproducibility: once

Steps:
Go to http://sadmentv.blogspot.com/2011/10/head-creative-director-s.html

What happened:
Assert failure and crash.

ASSERTION FAILED: scriptExecutionContext
/Users/rex/WebKit/Source/WebCore/bindings/js/JSDOMBinding.cpp(185) : void WebCore::reportException(JSC::ExecState *, JSC::JSValue)
1   0x1135e002f WebCore::reportException(JSC::ExecState*, JSC::JSValue)
2   0x1111772b6 WebKit::InjectedBundle::reportException(OpaqueJSContext const*, OpaqueJSValue const*)
3   0x1112c8c0d WKBundleReportException
4   0x120d63364 Safari::EventTarget::handleEvent(Safari::Event*, Safari::RegisteredEventListener const&)
5   0x120d6350f Safari::EventTarget::fireEventListeners(Safari::Event*, Safari::EventTargetTracker*)
6   0x120d63625 Safari::EventTarget::fireEventListeners(Safari::Event*)
7   0x120d63798 Safari::EventTarget::dispatchEvent(Safari::Event*)
8   0x120d2da73 Safari::ContentExtension::dispatchMessageToPage(Safari::SString const&, Safari::WK::SerializedScriptValue const&, Safari::WK::BundlePage const&)
9   0x120d317d9 Safari::ContentExtensionsController::dispatchExtensionMessageToPage(Safari::SString const&, Safari::SString const&, Safari::WK::SerializedScriptValue const&, Safari::WK::BundlePage const&) const
10  0x120ca2d61 Safari::BrowserBundleController::didReceiveMessage(Safari::WK::Bundle&, Safari::WK::String&, Safari::WK::Type&)
11  0x120d19747 _ZN6Safari2WKL17didReceiveMessageEPK14OpaqueWKBundlePK14OpaqueWKStringPKvS8_
12  0x1113c0128 WebKit::InjectedBundleClient::didReceiveMessage(WebKit::InjectedBundle*, WTF::String const&, WebKit::APIObject*)
13  0x1111773ad WebKit::InjectedBundle::didReceiveMessage(WTF::String const&, WebKit::APIObject*)
14  0x11117749e WebKit::InjectedBundle::didReceiveMessage(CoreIPC::Connection*, CoreIPC::MessageID, CoreIPC::ArgumentDecoder*)
15  0x1112a580c WebKit::WebProcess::didReceiveMessage(CoreIPC::Connection*, CoreIPC::MessageID, CoreIPC::ArgumentDecoder*)
16  0x11116279c CoreIPC::Connection::dispatchMessage(CoreIPC::Connection::Message<CoreIPC::ArgumentDecoder>&)
17  0x111164fb3 CoreIPC::Connection::dispatchMessages()
18  0x11116bdcb MemberFunctionWorkItem0<CoreIPC::Connection>::execute()
19  0x1111cae0f RunLoop::performWork()
20  0x1111cbd40 RunLoop::performWork(void*)
21  0x110981b51 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__
22  0x1109813bd __CFRunLoopDoSources0
23  0x1109a81a9 __CFRunLoopRun
24  0x1109a7ae6 CFRunLoopRunSpecific
25  0x11c6f03d3 RunCurrentEventLoopInMode
26  0x11c6f763d ReceiveNextEventCommon
27  0x11c6f74ca BlockUntilNextEventMatchingListInMode
28  0x1183063f1 _DPSNextEvent
29  0x118305cf5 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:]
30  0x11830262d -[NSApplication run]
31  0x1111cc02c RunLoop::run()

Expected result:
No assert failure, no crash.

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