<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/inserting/insert-with-mutation-event.html"
href="https://bugs.webkit.org/show_bug.cgi?id=149299">149299</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Null dereference loading Blink layout test editing/inserting/insert-with-mutation-event.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@lists.webkit.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>jhoneycutt@apple.com
</td>
</tr>
<tr>
<th>CC</th>
<td>webkit-bug-importer@group.apple.com
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=261434" name="attach_261434" title="crashing test">attachment 261434</a> <a href="attachment.cgi?id=261434&action=edit" title="crashing test">[details]</a></span>
crashing test
Null dereference loading Blink layout test editing/inserting/insert-with-mutation-event.html.
Stack trace:
Crashed Thread: 0 Dispatch queue: com.apple.main-thread
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x0000000000000348
Exception Note: EXC_CORPSE_NOTIFY
VM Regions Near 0x348:
-->
__TEXT 00000001029e4000-00000001029e6000 [ 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/inserting/insert-with-mutation-event.html
Global Trace Buffer (reverse chronological seconds):
40.565241 CFNetwork 0x00007fff88d43b97 Explicitly setting CF cookie storage singleton
40.565623 CFNetwork 0x00007fff88d8f211 Explicitly setting cookie storage singleton
Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0 com.apple.WebCore 0x000000010aa177da WebCore::SimpleEditCommand::SimpleEditCommand(WebCore::Document&, WebCore::EditAction) + 90 (memory:2635)
1 com.apple.WebCore 0x000000010b4afde5 WebCore::SplitTextNodeCommand::SplitTextNodeCommand(WTF::PassRefPtr<WebCore::Text>, int) + 37 (SplitTextNodeCommand.cpp:40)
2 com.apple.WebCore 0x000000010a80317f WebCore::CompositeEditCommand::splitTextNode(WTF::PassRefPtr<WebCore::Text>, unsigned int) + 63 (StdLibExtras.h:366)
3 com.apple.WebCore 0x000000010a7527a1 WebCore::ApplyStyleCommand::splitTextAtStart(WebCore::Position const&, WebCore::Position const&) + 161 (StdLibExtras.h:366)
4 com.apple.WebCore 0x000000010a750963 WebCore::ApplyStyleCommand::applyInlineStyle(WebCore::EditingStyle*) + 723 (ApplyStyleCommand.cpp:189)
5 com.apple.WebCore 0x000000010a74e0fd WebCore::ApplyStyleCommand::doApply() + 173 (PassRefPtr.h:41)
6 com.apple.WebCore 0x000000010a80252b WebCore::CompositeEditCommand::applyCommandToComposite(WTF::PassRefPtr<WebCore::EditCommand>) + 43 (CompositeEditCommand.cpp:281)
7 com.apple.WebCore 0x000000010a8026dc WebCore::CompositeEditCommand::applyStyle(WebCore::EditingStyle const*, WebCore::EditAction) + 76 (StdLibExtras.h:366)
8 com.apple.WebCore 0x000000010ac8912d WebCore::InsertTextCommand::doApply() + 2205 (RefCounted.h:99)
9 com.apple.WebCore 0x000000010a802630 WebCore::CompositeEditCommand::applyCommandToComposite(WTF::PassRefPtr<WebCore::CompositeEditCommand>, WebCore::VisibleSelection const&) + 80 (CompositeEditCommand.cpp:296)
10 com.apple.WebCore 0x000000010b64dc13 WebCore::TypingCommand::insertTextRunWithoutNewlines(WTF::String const&, bool) + 115 (StdLibExtras.h:366)
11 com.apple.WebCore 0x000000010b64e091 void WebCore::forEachLineInString<WebCore::TypingCommandLineOperation>(WTF::String const&, WebCore::TypingCommandLineOperation const&) + 257 (StdLibExtras.h:366)
12 com.apple.WebCore 0x000000010b64cae8 WebCore::TypingCommand::insertText(WebCore::Document&, WTF::String const&, WebCore::VisibleSelection const&, unsigned int, WebCore::TypingCommand::TextCompositionType) + 440 (RefCounted.h:99)
13 com.apple.WebCore 0x000000010aa3629a WebCore::executeInsertText(WebCore::Frame&, WebCore::Event*, WebCore::EditorCommandSource, WTF::String const&) + 26 (EditorCommand.cpp:535)
14 com.apple.WebCore 0x000000010aa34876 WebCore::Editor::Command::execute(WTF::String const&, WebCore::Event*) const + 182 (EditorCommand.cpp:1704)
15 com.apple.WebCore 0x000000010a96dc36 WebCore::Document::execCommand(WTF::String const&, bool, WTF::String const&) + 214 (Document.cpp:4666)
16 com.apple.WebCore 0x000000010ad84074 WebCore::jsDocumentPrototypeFunctionExecCommand(JSC::ExecState*) + 420 (JSCJSValue.h:499)
17 ??? 0x00002c99c3201028 0 + 49038915276840
18 com.apple.JavaScriptCore 0x000000010a0e076f llint_entry + 22696
19 com.apple.JavaScriptCore 0x000000010a0dace4 vmEntryToJavaScript + 299
20 com.apple.JavaScriptCore 0x0000000109f9b2d9 JSC::JITCode::execute(JSC::VM*, JSC::ProtoCallFrame*) + 169 (JITCode.cpp:82)
21 com.apple.JavaScriptCore 0x0000000109f81a10 JSC::Interpreter::execute(JSC::ProgramExecutable*, JSC::ExecState*, JSC::JSObject*) + 10448 (Interpreter.cpp:945)
22 com.apple.JavaScriptCore 0x0000000109c944c5 JSC::evaluate(JSC::ExecState*, JSC::SourceCode const&, JSC::JSValue, WTF::NakedPtr<JSC::Exception>&) + 469 (Completion.cpp:104)
23 com.apple.WebCore 0x000000010b3f78ec WebCore::ScriptController::evaluateInWorld(WebCore::ScriptSourceCode const&, WebCore::DOMWrapperWorld&) + 284 (JSMainThreadExecState.h:62)
24 com.apple.WebCore 0x000000010b3f7b29 WebCore::ScriptController::evaluate(WebCore::ScriptSourceCode const&) + 41 (ScriptController.cpp:180)
25 com.apple.WebCore 0x000000010b3fdaac WebCore::ScriptElement::executeScript(WebCore::ScriptSourceCode const&) + 316 (ScriptElement.cpp:309)
26 com.apple.WebCore 0x000000010b3fc756 WebCore::ScriptElement::prepareScript(WTF::TextPosition const&, WebCore::ScriptElement::LegacyTypeSupport) + 1046 (StdLibExtras.h:366)
27 com.apple.WebCore 0x000000010abf95eb WebCore::HTMLScriptRunner::runScript(WebCore::Element*, WTF::TextPosition const&) + 347 (ScriptElement.h:58)
28 com.apple.WebCore 0x000000010abf9440 WebCore::HTMLScriptRunner::execute(WTF::PassRefPtr<WebCore::Element>, WTF::TextPosition const&) + 48 (HTMLScriptRunner.cpp:191)
29 com.apple.WebCore 0x000000010ab9c466 WebCore::HTMLDocumentParser::runScriptsForPausedTreeBuilder() + 86 (StdLibExtras.h:366)
30 com.apple.WebCore 0x000000010ab9c52d WebCore::HTMLDocumentParser::canTakeNextToken(WebCore::HTMLDocumentParser::SynchronousMode, WebCore::PumpSession&) + 93 (HTMLDocumentParser.cpp:214)
31 com.apple.WebCore 0x000000010ab9c0c3 WebCore::HTMLDocumentParser::pumpTokenizer(WebCore::HTMLDocumentParser::SynchronousMode) + 595 (HTMLDocumentParser.cpp:259)
32 com.apple.WebCore 0x000000010ab9cddd WebCore::HTMLDocumentParser::append(WTF::PassRefPtr<WTF::StringImpl>) + 669 (DocumentParser.h:71)
33 com.apple.WebCore 0x000000010a93f61c WebCore::DecodedDataDocumentParser::flush(WebCore::DocumentWriter&) + 92 (StdLibExtras.h:366)
34 com.apple.WebCore 0x000000010a99f68b WebCore::DocumentWriter::end() + 43 (RefPtr.h:71)
35 com.apple.WebCore 0x000000010a9879ec WebCore::DocumentLoader::finishedLoading(double) + 268 (ResourceErrorBase.h:42)
36 com.apple.WebCore 0x000000010a7b8179 WebCore::CachedResource::checkNotify() + 153 (CachedResourceClientWalker.h:51)
37 com.apple.WebCore 0x000000010a7b4433 WebCore::CachedRawResource::finishLoading(WebCore::SharedBuffer*) + 227 (CachedRawResource.cpp:104)
38 com.apple.WebCore 0x000000010b52f501 WebCore::SubresourceLoader::didFinishLoading(double) + 1153 (ResourceLoader.h:154)
39 com.apple.WebKit 0x000000010907598d WebKit::WebResourceLoader::didReceiveWebResourceLoaderMessage(IPC::Connection&, IPC::MessageDecoder&) + 561 (HandleMessage.h:16)
40 com.apple.WebKit 0x0000000108e4f1f1 IPC::Connection::dispatchMessage(std::__1::unique_ptr<IPC::MessageDecoder, std::__1::default_delete<IPC::MessageDecoder> >) + 127 (memory:2636)
41 com.apple.WebKit 0x0000000108e51b4a IPC::Connection::dispatchOneMessage() + 126 (memory:2656)
42 com.apple.JavaScriptCore 0x000000010a293985 WTF::RunLoop::performWork() + 437 (functional:1742)
43 com.apple.JavaScriptCore 0x000000010a293d32 WTF::RunLoop::performWork(void*) + 34 (RunLoopCF.cpp:39)
44 com.apple.CoreFoundation 0x00007fff949e2c01 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17
45 com.apple.CoreFoundation 0x00007fff949d4b1c __CFRunLoopDoSources0 + 556
46 com.apple.CoreFoundation 0x00007fff949d403f __CFRunLoopRun + 927
47 com.apple.CoreFoundation 0x00007fff949d3a38 CFRunLoopRunSpecific + 296
48 com.apple.HIToolbox 0x00007fff88e673bd RunCurrentEventLoopInMode + 235
49 com.apple.HIToolbox 0x00007fff88e67153 ReceiveNextEventCommon + 432
50 com.apple.HIToolbox 0x00007fff88e66f93 _BlockUntilNextEventMatchingListInModeWithFilter + 71
51 com.apple.AppKit 0x00007fff870b81e7 _DPSNextEvent + 1076
52 com.apple.AppKit 0x00007fff8748490d -[NSApplication _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 454
53 com.apple.AppKit 0x00007fff870ae0b8 -[NSApplication run] + 682
54 com.apple.AppKit 0x00007fff87030396 NSApplicationMain + 1176
55 libxpc.dylib 0x00007fff8c70ff70 _xpc_objc_main + 793
56 libxpc.dylib 0x00007fff8c7116bf xpc_main + 494
57 com.apple.WebKit.WebContent.Development 0x00000001029e5424 main + 409 (XPCServiceMain.Development.mm:187)
58 libdyld.dylib 0x00007fff93aa15ad start + 1</pre>
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