[Webkit-unassigned] [Bug 99356] New: ASSERTION FAILED: offset == invalidOffset || offset < inlineCapacity || isOutOfLineOffset(offset) : void JSC::checkOffset(PropertyOffset, PropertyOffset)

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=99356

           Summary: ASSERTION FAILED: offset == invalidOffset || offset <
                    inlineCapacity || isOutOfLineOffset(offset) : void
                    JSC::checkOffset(PropertyOffset, PropertyOffset)
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Macintosh Intel
               URL: http://www.tmz.com
        OS/Version: Mac OS X 10.8
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: rex_4539 at yahoo.com


Created an attachment (id=168766)
 --> (https://bugs.webkit.org/attachment.cgi?id=168766&action=review)
Crash log.

r131324

Reproducibility: once

Steps:
http://www.tmz.com

What happened:
Assert failure.

ASSERTION FAILED: offset == invalidOffset || offset < inlineCapacity || isOutOfLineOffset(offset)
/Users/rex/WebKit/Source/JavaScriptCore/runtime/PropertyOffset.h(73) : void JSC::checkOffset(PropertyOffset, PropertyOffset)
1   0x1078319e8 JSC::checkOffset(int, int)
2   0x1078ad599 JSC::validateOffset(int, int)
3   0x1078ad2fe JSC::JSObject::offsetForLocation(JSC::WriteBarrierBase<JSC::Unknown>*) const
4   0x1078aaddb JSC::JSFunction::getOwnPropertySlot(JSC::JSCell*, JSC::ExecState*, JSC::PropertyName, JSC::PropertySlot&)
5   0x1078aa6e9 JSC::JSFunction::put(JSC::JSCell*, JSC::ExecState*, JSC::PropertyName, JSC::JSValue, JSC::PutPropertySlot&)
6   0x10778dda9 JSC::JSValue::put(JSC::ExecState*, JSC::PropertyName, JSC::JSValue, JSC::PutPropertySlot&)
7   0x107a26590 llint_slow_path_put_by_id
8   0x107a2f652 llint_op_put_by_id
9   0x10783a9b4 JSC::JITCode::execute(JSC::JSStack*, JSC::ExecState*, JSC::JSGlobalData*)
10  0x107836e0f JSC::Interpreter::execute(JSC::ProgramExecutable*, JSC::ExecState*, JSC::JSObject*)
11  0x10770ef33 JSC::evaluate(JSC::ExecState*, JSC::SourceCode const&, JSC::JSValue, JSC::JSValue*)
12  0x1091fbc52 WebCore::JSMainThreadExecState::evaluate(JSC::ExecState*, JSC::SourceCode const&, JSC::JSValue, JSC::JSValue*)
13  0x109a07933 WebCore::ScriptController::evaluateInWorld(WebCore::ScriptSourceCode const&, WebCore::DOMWrapperWorld*)
14  0x108bbc2a5 WebCore::Frame::injectUserScriptsForWorld(WebCore::DOMWrapperWorld*, WTF::Vector<WTF::OwnPtr<WebCore::UserScript>, 0ul> const&, WebCore::UserScriptInjectionTime)
15  0x108bbc0a0 WebCore::Frame::injectUserScripts(WebCore::UserScriptInjectionTime)
16  0x108bc8004 WebCore::FrameLoader::finishedParsing()
17  0x1088becf8 WebCore::Document::finishedParsing()
18  0x108db0101 WebCore::HTMLTreeBuilder::finished()
19  0x108ce5adc WebCore::HTMLDocumentParser::end()
20  0x108ce4c1f WebCore::HTMLDocumentParser::attemptToRunDeferredScriptsAndEnd()
21  0x108ce4a10 WebCore::HTMLDocumentParser::prepareToStopParsing()
22  0x108ce5b33 WebCore::HTMLDocumentParser::attemptToEnd()
23  0x108ce5b88 WebCore::HTMLDocumentParser::finish()
24  0x10892e078 WebCore::DocumentWriter::end()
25  0x10890a06f WebCore::DocumentLoader::finishedLoading()
26  0x10955851d WebCore::MainResourceLoader::didFinishLoading(double)
27  0x1095576b1 WebCore::MainResourceLoader::continueAfterContentPolicy(WebCore::PolicyAction, WebCore::ResourceResponse const&)
28  0x109557850 WebCore::MainResourceLoader::continueAfterContentPolicy(WebCore::PolicyAction)
29  0x10955777b WebCore::MainResourceLoader::callContinueAfterContentPolicy(void*, WebCore::PolicyAction)
30  0x1096ab989 WebCore::PolicyCallback::call(WebCore::PolicyAction)
31  0x1096ac7ad WebCore::PolicyChecker::continueAfterContentPolicy(WebCore::PolicyAction)

Expected result:
No assert failure.

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