<html>
    <head>
      <base href="https://bugs.webkit.org/" />
    </head>
    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - Null dereference loading Blink layout test editing/execCommand/delete-hidden-crash.html"
   href="https://bugs.webkit.org/show_bug.cgi?id=149289">149289</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Null dereference loading Blink layout test editing/execCommand/delete-hidden-crash.html
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>WebKit
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>WebKit Nightly Build
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>Unspecified
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Unspecified
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Keywords</th>
          <td>BlinkMergeCandidate, HasReduction, NeedsRadar
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>Normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>P2
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>HTML Editing
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>webkit-unassigned&#64;lists.webkit.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>jhoneycutt&#64;apple.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>webkit-bug-importer&#64;group.apple.com
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=261423" name="attach_261423" title="crashing test">attachment 261423</a> <a href="attachment.cgi?id=261423&amp;action=edit" title="crashing test">[details]</a></span>
crashing test

Null dereference loading Blink layout test editing/execCommand/delete-hidden-crash.html.

Stack trace:

Crashed Thread:        0  Dispatch queue: com.apple.main-thread

Exception Type:        EXC_BAD_ACCESS (SIGSEGV)
Exception Codes:       KERN_INVALID_ADDRESS at 0x0000000000000014
Exception Note:        EXC_CORPSE_NOTIFY

VM Regions Near 0x14:
--&gt; 
    __TEXT                 000000010102c000-000000010102e000 [    8K] r-x/rwx SM=COW  /Users/USER/*/WebKit.framework/Versions/A/XPCServices/com.apple.WebKit.WebContent.Development.xpc/Contents/MacOS/com.apple.WebKit.WebContent.Development

Application Specific Information:
CRASHING TEST: temp-tests/editing/execCommand/delete-hidden-crash.html

Global Trace Buffer (reverse chronological seconds):
41.945279    CFNetwork                     0x00007fff88d43b97 Explicitly setting CF cookie storage singleton
41.945648    CFNetwork                     0x00007fff88d8f211 Explicitly setting cookie storage singleton

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0   com.apple.WebCore                 0x0000000109855560 WebCore::Node::isDescendantOf(WebCore::Node const*) const + 32 (Node.h:638)
1   com.apple.WebCore                 0x000000010901d5bc WebCore::DeleteSelectionCommand::removePreviouslySelectedEmptyTableRows() + 556 (DeleteSelectionCommand.cpp:708)
2   com.apple.WebCore                 0x000000010901e9ce WebCore::DeleteSelectionCommand::doApply() + 1598 (DeleteSelectionCommand.cpp:856)
3   com.apple.WebCore                 0x0000000108ed852b WebCore::CompositeEditCommand::applyCommandToComposite(WTF::PassRefPtr&lt;WebCore::EditCommand&gt;) + 43 (CompositeEditCommand.cpp:281)
4   com.apple.WebCore                 0x0000000108edadc7 WebCore::CompositeEditCommand::deleteSelection(bool, bool, bool, bool, bool) + 135 (StdLibExtras.h:366)
5   com.apple.WebCore                 0x000000010935e8fb WebCore::InsertTextCommand::doApply() + 107 (VisibleSelection.h:75)
6   com.apple.WebCore                 0x0000000108ed8630 WebCore::CompositeEditCommand::applyCommandToComposite(WTF::PassRefPtr&lt;WebCore::CompositeEditCommand&gt;, WebCore::VisibleSelection const&amp;) + 80 (CompositeEditCommand.cpp:296)
7   com.apple.WebCore                 0x0000000109d23c13 WebCore::TypingCommand::insertTextRunWithoutNewlines(WTF::String const&amp;, bool) + 115 (StdLibExtras.h:366)
8   com.apple.WebCore                 0x0000000109d24091 void WebCore::forEachLineInString&lt;WebCore::TypingCommandLineOperation&gt;(WTF::String const&amp;, WebCore::TypingCommandLineOperation const&amp;) + 257 (StdLibExtras.h:366)
9   com.apple.WebCore                 0x0000000109d23656 WebCore::TypingCommand::doApply() + 214 (TypingCommand.cpp:286)
10  com.apple.WebCore                 0x0000000108ed8216 WebCore::CompositeEditCommand::apply() + 102 (ScopedEventQueue.h:71)
11  com.apple.WebCore                 0x0000000109ce5263 WebCore::TextInsertionBaseCommand::applyTextInsertionCommand(WebCore::Frame*, WTF::PassRefPtr&lt;WebCore::TextInsertionBaseCommand&gt;, WebCore::VisibleSelection const&amp;, WebCore::VisibleSelection const&amp;) + 67 (StdLibExtras.h:366)
12  com.apple.WebCore                 0x0000000109d22bde WebCore::TypingCommand::insertText(WebCore::Document&amp;, WTF::String const&amp;, WebCore::VisibleSelection const&amp;, unsigned int, WebCore::TypingCommand::TextCompositionType) + 686 (StdLibExtras.h:366)
13  com.apple.WebCore                 0x000000010910c29a WebCore::executeInsertText(WebCore::Frame&amp;, WebCore::Event*, WebCore::EditorCommandSource, WTF::String const&amp;) + 26 (EditorCommand.cpp:535)
14  com.apple.WebCore                 0x000000010910a876 WebCore::Editor::Command::execute(WTF::String const&amp;, WebCore::Event*) const + 182 (EditorCommand.cpp:1704)
15  com.apple.WebCore                 0x0000000109043c36 WebCore::Document::execCommand(WTF::String const&amp;, bool, WTF::String const&amp;) + 214 (Document.cpp:4666)
16  com.apple.WebCore                 0x000000010945a074 WebCore::jsDocumentPrototypeFunctionExecCommand(JSC::ExecState*) + 420 (JSCJSValue.h:499)
17  ???                               0x00002bb58a001028 0 + 48058704334888
18  com.apple.JavaScriptCore          0x00000001087b676f llint_entry + 22696
19  com.apple.JavaScriptCore          0x00000001087b0ce4 vmEntryToJavaScript + 299
20  com.apple.JavaScriptCore          0x00000001086712d9 JSC::JITCode::execute(JSC::VM*, JSC::ProtoCallFrame*) + 169 (JITCode.cpp:82)
21  com.apple.JavaScriptCore          0x0000000108657d12 JSC::Interpreter::executeCall(JSC::ExecState*, JSC::JSObject*, JSC::CallType, JSC::CallData const&amp;, JSC::JSValue, JSC::ArgList const&amp;) + 450 (Interpreter.cpp:1008)
22  com.apple.JavaScriptCore          0x00000001083238b7 JSC::call(JSC::ExecState*, JSC::JSValue, JSC::CallType, JSC::CallData const&amp;, JSC::JSValue, JSC::ArgList const&amp;, WTF::NakedPtr&lt;JSC::Exception&gt;&amp;) + 71 (MarkedBlock.h:241)
23  com.apple.WebCore                 0x00000001094defa4 WebCore::JSEventListener::handleEvent(WebCore::ScriptExecutionContext*, WebCore::Event*) + 996 (JSMainThreadExecState.h:56)
24  com.apple.WebCore                 0x00000001091454db WebCore::EventTarget::fireEventListeners(WebCore::Event*, WebCore::EventTargetData*, WTF::Vector&lt;WebCore::RegisteredEventListener, 1ul, WTF::CrashOnOverflow, 16ul&gt;&amp;) + 635 (InspectorInstrumentation.h:285)
25  com.apple.WebCore                 0x00000001091451a0 WebCore::EventTarget::fireEventListeners(WebCore::Event*) + 224 (EventTarget.cpp:208)
26  com.apple.WebCore                 0x00000001090d1bf4 WebCore::DOMWindow::dispatchEvent(WTF::PassRefPtr&lt;WebCore::Event&gt;, WTF::PassRefPtr&lt;WebCore::EventTarget&gt;) + 260 (DOMWindow.cpp:1900)
27  com.apple.WebCore                 0x00000001090d730b WebCore::DOMWindow::dispatchLoadEvent() + 347 (StdLibExtras.h:366)
28  com.apple.WebCore                 0x000000010903a294 WebCore::Document::implicitClose() + 324 (Document.cpp:4077)
29  com.apple.WebCore                 0x00000001091c7003 WebCore::FrameLoader::checkCompleted() + 275 (FrameLoader.cpp:839)
30  com.apple.WebCore                 0x00000001091c595b WebCore::FrameLoader::finishedParsing() + 123 (FrameLoader.cpp:760)
31  com.apple.WebCore                 0x0000000109045281 WebCore::Document::finishedParsing() + 417 (Frame.h:377)
32  com.apple.WebCore                 0x0000000109271e05 WebCore::HTMLDocumentParser::prepareToStopParsing() + 165 (RefCounted.h:99)
33  com.apple.WebCore                 0x000000010907569a WebCore::DocumentWriter::end() + 58 (StdLibExtras.h:366)
34  com.apple.WebCore                 0x000000010905d9ec WebCore::DocumentLoader::finishedLoading(double) + 268 (ResourceErrorBase.h:42)
35  com.apple.WebCore                 0x0000000108e8e179 WebCore::CachedResource::checkNotify() + 153 (CachedResourceClientWalker.h:51)
36  com.apple.WebCore                 0x0000000108e8a433 WebCore::CachedRawResource::finishLoading(WebCore::SharedBuffer*) + 227 (CachedRawResource.cpp:104)
37  com.apple.WebCore                 0x0000000109c05501 WebCore::SubresourceLoader::didFinishLoading(double) + 1153 (ResourceLoader.h:154)
38  com.apple.WebKit                  0x000000010774b98d WebKit::WebResourceLoader::didReceiveWebResourceLoaderMessage(IPC::Connection&amp;, IPC::MessageDecoder&amp;) + 561 (HandleMessage.h:16)
39  com.apple.WebKit                  0x00000001075251f1 IPC::Connection::dispatchMessage(std::__1::unique_ptr&lt;IPC::MessageDecoder, std::__1::default_delete&lt;IPC::MessageDecoder&gt; &gt;) + 127 (memory:2636)
40  com.apple.WebKit                  0x0000000107527b4a IPC::Connection::dispatchOneMessage() + 126 (memory:2656)
41  com.apple.JavaScriptCore          0x0000000108969985 WTF::RunLoop::performWork() + 437 (functional:1742)
42  com.apple.JavaScriptCore          0x0000000108969d32 WTF::RunLoop::performWork(void*) + 34 (RunLoopCF.cpp:39)
43  com.apple.CoreFoundation          0x00007fff949e2c01 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17
44  com.apple.CoreFoundation          0x00007fff949d4b1c __CFRunLoopDoSources0 + 556
45  com.apple.CoreFoundation          0x00007fff949d403f __CFRunLoopRun + 927
46  com.apple.CoreFoundation          0x00007fff949d3a38 CFRunLoopRunSpecific + 296
47  com.apple.HIToolbox               0x00007fff88e673bd RunCurrentEventLoopInMode + 235
48  com.apple.HIToolbox               0x00007fff88e67153 ReceiveNextEventCommon + 432
49  com.apple.HIToolbox               0x00007fff88e66f93 _BlockUntilNextEventMatchingListInModeWithFilter + 71
50  com.apple.AppKit                  0x00007fff870b81e7 _DPSNextEvent + 1076
51  com.apple.AppKit                  0x00007fff8748490d -[NSApplication _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 454
52  com.apple.AppKit                  0x00007fff870ae0b8 -[NSApplication run] + 682
53  com.apple.AppKit                  0x00007fff87030396 NSApplicationMain + 1176
54  libxpc.dylib                      0x00007fff8c70ff70 _xpc_objc_main + 793
55  libxpc.dylib                      0x00007fff8c7116bf xpc_main + 494
56  com.apple.WebKit.WebContent.Development    0x000000010102d424 main + 409 (XPCServiceMain.Development.mm:187)
57  libdyld.dylib                     0x00007fff93aa15ad start + 1</pre>
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      </p>
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      <ul>
          <li>You are the assignee for the bug.</li>
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