[Webkit-unassigned] [Bug 147290] Crash happens when calling removeEventListener for an SVG element which has an instance inside a <defs> element of shadow tree

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=147290

--- Comment #3 from Said Abou-Hallawa <sabouhallawa at apple.com> ---
(In reply to comment #2)
> This stack shows an assertion failure, but sounds like there is also a crash
> in release mode - is that correct?
> 
> The attached test case doesn't crash in shipping Safari/WebKit for me.

Yes the above is an assertion failure. Here is the crashing call stack which I got when opening the attached text case in the latest Safari

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0   com.apple.WebCore                 0x00007fff896746f4 WebCore::EventListenerMap::removeFirstEventListenerCreatedFromMarkup(WTF::AtomicString const&) + 20
1   com.apple.WebCore                 0x00007fff89efdca2 WebCore::SVGElement::removeEventListener(WTF::AtomicString const&, WebCore::EventListener*, bool) + 290
2   com.apple.WebCore                 0x00007fff89250578 WebCore::jsNodePrototypeFunctionRemoveEventListener(JSC::ExecState*) + 424
3   ???                               0x00003a8434e01028 0 + 64339497193512
4   com.apple.JavaScriptCore          0x00007fff8548a376 llint_entry + 22925
5   com.apple.JavaScriptCore          0x00007fff854847d9 vmEntryToJavaScript + 326
6   com.apple.JavaScriptCore          0x00007fff853b3419 JSC::JITCode::execute(JSC::VM*, JSC::ProtoCallFrame*) + 169
7   com.apple.JavaScriptCore          0x00007fff84f884ad JSC::Interpreter::executeCall(JSC::ExecState*, JSC::JSObject*, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&) + 493
8   com.apple.JavaScriptCore          0x00007fff85125507 JSC::call(JSC::ExecState*, JSC::JSValue, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&, WTF::NakedPtr<JSC::Exception>&) + 71
9   com.apple.WebCore                 0x00007fff8924f41a WebCore::JSEventListener::handleEvent(WebCore::ScriptExecutionContext*, WebCore::Event*) + 1002
10  com.apple.WebCore                 0x00007fff896778db WebCore::EventTarget::fireEventListeners(WebCore::Event*, WebCore::EventTargetData*, WTF::Vector<WebCore::RegisteredEventListener, 1ul, WTF::CrashOnOverflow, 16ul>&) + 635
11  com.apple.WebCore                 0x00007fff8915a390 WebCore::EventTarget::fireEventListeners(WebCore::Event*) + 224
12  com.apple.WebCore                 0x00007fff891b0414 WebCore::DOMWindow::dispatchEvent(WTF::PassRefPtr<WebCore::Event>, WTF::PassRefPtr<WebCore::EventTarget>) + 260
13  com.apple.WebCore                 0x00007fff891c251b WebCore::DOMWindow::dispatchLoadEvent() + 347
14  com.apple.WebCore                 0x00007fff89185dd4 WebCore::Document::implicitClose() + 324
15  com.apple.WebCore                 0x00007fff89185853 WebCore::FrameLoader::checkCompleted() + 275
16  com.apple.WebCore                 0x00007fff89184624 WebCore::FrameLoader::finishedParsing() + 100
17  com.apple.WebCore                 0x00007fff891833c1 WebCore::Document::finishedParsing() + 417
18  com.apple.WebCore                 0x00007fff8915b9aa WebCore::DocumentWriter::end() + 58
19  com.apple.WebCore                 0x00007fff8914d55c WebCore::DocumentLoader::finishedLoading(double) + 268
20  com.apple.WebCore                 0x00007fff891e8809 WebCore::CachedResource::checkNotify() + 153
21  com.apple.WebCore                 0x00007fff894abe43 WebCore::CachedRawResource::finishLoading(WebCore::SharedBuffer*) + 227
22  com.apple.WebCore                 0x00007fff891e86a1 WebCore::SubresourceLoader::didFinishLoading(double) + 1153
23  com.apple.WebKit                  0x00007fff8ec57d0d WebKit::WebResourceLoader::didReceiveWebResourceLoaderMessage(IPC::Connection&, IPC::MessageDecoder&) + 561
24  com.apple.WebKit                  0x00007fff8ea9b458 IPC::Connection::dispatchMessage(std::__1::unique_ptr<IPC::MessageDecoder, std::__1::default_delete<IPC::MessageDecoder> >) + 102
25  com.apple.WebKit                  0x00007fff8ea9d984 IPC::Connection::dispatchOneMessage() + 114
26  com.apple.JavaScriptCore          0x00007fff85570b45 WTF::RunLoop::performWork() + 437
27  com.apple.JavaScriptCore          0x00007fff85571222 WTF::RunLoop::performWork(void*) + 34
28  com.apple.CoreFoundation          0x00007fff8adf8ac1 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17
29  com.apple.CoreFoundation          0x00007fff8adeb0bc __CFRunLoopDoSources0 + 556
30  com.apple.CoreFoundation          0x00007fff8adea5df __CFRunLoopRun + 927
31  com.apple.CoreFoundation          0x00007fff8ade9fd8 CFRunLoopRunSpecific + 296
32  com.apple.HIToolbox               0x00007fff8b6a86a1 RunCurrentEventLoopInMode + 235
33  com.apple.HIToolbox               0x00007fff8b6a8437 ReceiveNextEventCommon + 432
34  com.apple.HIToolbox               0x00007fff8b6a8277 _BlockUntilNextEventMatchingListInModeWithFilter + 71
35  com.apple.AppKit                  0x00007fff8d6e106f _DPSNextEvent + 1076
36  com.apple.AppKit                  0x00007fff8daae597 -[NSApplication _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 423
37  com.apple.AppKit                  0x00007fff8d6d6efa -[NSApplication run] + 682
38  com.apple.AppKit                  0x00007fff8d6590b2 NSApplicationMain + 1176
39  libxpc.dylib                      0x00007fff91d08fa0 _xpc_objc_main + 793
40  libxpc.dylib                      0x00007fff91d0a6ef xpc_main + 494
41  com.apple.WebKit.WebContent       0x0000000105b79b4a 0x105b79000 + 2890
42  libdyld.dylib                     0x00007fff950075ad start + 1

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