[Webkit-unassigned] [Bug 149300] New: Null dereference loading Blink layout test editing/style/apply-style-crash2.html
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Thu Sep 17 14:58:37 PDT 2015
https://bugs.webkit.org/show_bug.cgi?id=149300
Bug ID: 149300
Summary: Null dereference loading Blink layout test
editing/style/apply-style-crash2.html
Classification: Unclassified
Product: WebKit
Version: WebKit Nightly Build
Hardware: Unspecified
OS: Unspecified
Status: NEW
Keywords: BlinkMergeCandidate, HasReduction, NeedsRadar
Severity: Normal
Priority: P2
Component: HTML Editing
Assignee: webkit-unassigned at lists.webkit.org
Reporter: jhoneycutt at apple.com
CC: webkit-bug-importer at group.apple.com
Created attachment 261435
--> https://bugs.webkit.org/attachment.cgi?id=261435&action=review
crashing test
Null dereference loading Blink layout test editing/style/apply-style-crash2.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:
-->
__TEXT 000000010a350000-000000010a352000 [ 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/style/apply-style-crash2.html
Global Trace Buffer (reverse chronological seconds):
18446744062.318451 CFNetwork 0x00007fff88d43b97 Explicitly setting CF cookie storage singleton
18446744062.318817 CFNetwork 0x00007fff88d8f211 Explicitly setting cookie storage singleton
Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0 com.apple.WebCore 0x0000000112091db5 WebCore::ApplyStyleCommand::applyRelativeFontStyleChange(WebCore::EditingStyle*) + 2261 (Node.h:638)
1 com.apple.WebCore 0x00000001120900ee WebCore::ApplyStyleCommand::doApply() + 158 (RefPtr.h:61)
2 com.apple.WebCore 0x0000000112144216 WebCore::CompositeEditCommand::apply() + 102 (ScopedEventQueue.h:71)
3 com.apple.WebCore 0x0000000112367bfb WebCore::Editor::applyStyle(WTF::RefPtr<WebCore::EditingStyle>&&, WebCore::EditAction) + 107 (StdLibExtras.h:366)
4 com.apple.WebCore 0x000000011237a2a3 WebCore::applyCommandToFrame(WebCore::Frame&, WebCore::EditorCommandSource, WebCore::EditAction, WTF::Ref<WebCore::EditingStyle>&&) + 51 (StdLibExtras.h:366)
5 com.apple.WebCore 0x000000011237a22f WebCore::executeApplyStyle(WebCore::Frame&, WebCore::EditorCommandSource, WebCore::EditAction, WebCore::CSSPropertyID, WTF::String const&) + 79 (EditorCommand.cpp:129)
6 com.apple.WebCore 0x0000000112376876 WebCore::Editor::Command::execute(WTF::String const&, WebCore::Event*) const + 182 (EditorCommand.cpp:1704)
7 com.apple.WebCore 0x00000001122afc36 WebCore::Document::execCommand(WTF::String const&, bool, WTF::String const&) + 214 (Document.cpp:4666)
8 com.apple.WebCore 0x00000001126c6074 WebCore::jsDocumentPrototypeFunctionExecCommand(JSC::ExecState*) + 420 (JSCJSValue.h:499)
9 ??? 0x0000520338c01028 0 + 90173790490664
10 com.apple.JavaScriptCore 0x0000000111a2276f llint_entry + 22696
11 com.apple.JavaScriptCore 0x0000000111a1cce4 vmEntryToJavaScript + 299
12 com.apple.JavaScriptCore 0x00000001118dd2d9 JSC::JITCode::execute(JSC::VM*, JSC::ProtoCallFrame*) + 169 (JITCode.cpp:82)
13 com.apple.JavaScriptCore 0x00000001118c3a10 JSC::Interpreter::execute(JSC::ProgramExecutable*, JSC::ExecState*, JSC::JSObject*) + 10448 (Interpreter.cpp:945)
14 com.apple.JavaScriptCore 0x00000001115d64c5 JSC::evaluate(JSC::ExecState*, JSC::SourceCode const&, JSC::JSValue, WTF::NakedPtr<JSC::Exception>&) + 469 (Completion.cpp:104)
15 com.apple.WebCore 0x0000000112d398ec WebCore::ScriptController::evaluateInWorld(WebCore::ScriptSourceCode const&, WebCore::DOMWrapperWorld&) + 284 (JSMainThreadExecState.h:62)
16 com.apple.WebCore 0x0000000112d39b29 WebCore::ScriptController::evaluate(WebCore::ScriptSourceCode const&) + 41 (ScriptController.cpp:180)
17 com.apple.WebCore 0x0000000112d3faac WebCore::ScriptElement::executeScript(WebCore::ScriptSourceCode const&) + 316 (ScriptElement.cpp:309)
18 com.apple.WebCore 0x0000000112d3e756 WebCore::ScriptElement::prepareScript(WTF::TextPosition const&, WebCore::ScriptElement::LegacyTypeSupport) + 1046 (StdLibExtras.h:366)
19 com.apple.WebCore 0x000000011253b5eb WebCore::HTMLScriptRunner::runScript(WebCore::Element*, WTF::TextPosition const&) + 347 (ScriptElement.h:58)
20 com.apple.WebCore 0x000000011253b440 WebCore::HTMLScriptRunner::execute(WTF::PassRefPtr<WebCore::Element>, WTF::TextPosition const&) + 48 (HTMLScriptRunner.cpp:191)
21 com.apple.WebCore 0x00000001124de466 WebCore::HTMLDocumentParser::runScriptsForPausedTreeBuilder() + 86 (StdLibExtras.h:366)
22 com.apple.WebCore 0x00000001124de52d WebCore::HTMLDocumentParser::canTakeNextToken(WebCore::HTMLDocumentParser::SynchronousMode, WebCore::PumpSession&) + 93 (HTMLDocumentParser.cpp:214)
23 com.apple.WebCore 0x00000001124de0c3 WebCore::HTMLDocumentParser::pumpTokenizer(WebCore::HTMLDocumentParser::SynchronousMode) + 595 (HTMLDocumentParser.cpp:259)
24 com.apple.WebCore 0x00000001124deddd WebCore::HTMLDocumentParser::append(WTF::PassRefPtr<WTF::StringImpl>) + 669 (DocumentParser.h:71)
25 com.apple.WebCore 0x000000011228161c WebCore::DecodedDataDocumentParser::flush(WebCore::DocumentWriter&) + 92 (StdLibExtras.h:366)
26 com.apple.WebCore 0x00000001122e168b WebCore::DocumentWriter::end() + 43 (RefPtr.h:71)
27 com.apple.WebCore 0x00000001122c99ec WebCore::DocumentLoader::finishedLoading(double) + 268 (ResourceErrorBase.h:42)
28 com.apple.WebCore 0x00000001120fa179 WebCore::CachedResource::checkNotify() + 153 (CachedResourceClientWalker.h:51)
29 com.apple.WebCore 0x00000001120f6433 WebCore::CachedRawResource::finishLoading(WebCore::SharedBuffer*) + 227 (CachedRawResource.cpp:104)
30 com.apple.WebCore 0x0000000112e71501 WebCore::SubresourceLoader::didFinishLoading(double) + 1153 (ResourceLoader.h:154)
31 com.apple.WebKit 0x00000001109b798d WebKit::WebResourceLoader::didReceiveWebResourceLoaderMessage(IPC::Connection&, IPC::MessageDecoder&) + 561 (HandleMessage.h:16)
32 com.apple.WebKit 0x00000001107911f1 IPC::Connection::dispatchMessage(std::__1::unique_ptr<IPC::MessageDecoder, std::__1::default_delete<IPC::MessageDecoder> >) + 127 (memory:2636)
33 com.apple.WebKit 0x0000000110793b4a IPC::Connection::dispatchOneMessage() + 126 (memory:2656)
34 com.apple.JavaScriptCore 0x0000000111bd5985 WTF::RunLoop::performWork() + 437 (functional:1742)
35 com.apple.JavaScriptCore 0x0000000111bd5d32 WTF::RunLoop::performWork(void*) + 34 (RunLoopCF.cpp:39)
36 com.apple.CoreFoundation 0x00007fff949e2c01 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17
37 com.apple.CoreFoundation 0x00007fff949d4b1c __CFRunLoopDoSources0 + 556
38 com.apple.CoreFoundation 0x00007fff949d403f __CFRunLoopRun + 927
39 com.apple.CoreFoundation 0x00007fff949d3a38 CFRunLoopRunSpecific + 296
40 com.apple.HIToolbox 0x00007fff88e673bd RunCurrentEventLoopInMode + 235
41 com.apple.HIToolbox 0x00007fff88e67153 ReceiveNextEventCommon + 432
42 com.apple.HIToolbox 0x00007fff88e66f93 _BlockUntilNextEventMatchingListInModeWithFilter + 71
43 com.apple.AppKit 0x00007fff870b81e7 _DPSNextEvent + 1076
44 com.apple.AppKit 0x00007fff8748490d -[NSApplication _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 454
45 com.apple.AppKit 0x00007fff870ae0b8 -[NSApplication run] + 682
46 com.apple.AppKit 0x00007fff87030396 NSApplicationMain + 1176
47 libxpc.dylib 0x00007fff8c70ff70 _xpc_objc_main + 793
48 libxpc.dylib 0x00007fff8c7116bf xpc_main + 494
49 com.apple.WebKit.WebContent.Development 0x000000010a351424 main + 409 (XPCServiceMain.Development.mm:187)
50 libdyld.dylib 0x00007fff93aa15ad start + 1
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