Bug 164078 – ASSERTION FAILED: length in WebCore::TextIteratorCopyableText::set

• Component: WebCore Misc.
• Status: NEW

[Renata Hodovan]

Load the attached test with debug WebKitTestRunner:

Checked version: 2c9fa6e
OS: Darwin-15.6.0-x86_64-i386-64bit

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Backtrace:

ASSERTION FAILED: length
WebKit/Source/WebCore/editing/TextIterator.cpp(315) : void WebCore::TextIteratorCopyableText::set(WTF::String &&, unsigned int, unsigned int)
1   0x1103ba4f1 WTFCrash
2   0x11ab6cd5e WebCore::TextIteratorCopyableText::set(WTF::String&&, unsigned int, unsigned int)
3   0x11ab5d8ac WebCore::TextIterator::emitText(WebCore::Text&, WebCore::RenderText&, int, int)
4   0x11ab5ac5f WebCore::TextIterator::handleTextNode()
5   0x11ab546f0 WebCore::TextIterator::advance()
6   0x11ab64ed8 WebCore::CharacterIterator::advance(int)
7   0x11ab69cd5 WebCore::findPlainText(WebCore::Range const&, WTF::String const&, unsigned char, unsigned long&)
8   0x11ab696e3 WebCore::findPlainText(WebCore::Range const&, WTF::String const&, unsigned char)
9   0x115b339f0 WebCore::Editor::rangeOfString(WTF::String const&, WebCore::Range*, unsigned char)
10  0x115b32bc1 WebCore::Editor::findString(WTF::String const&, unsigned char)
11  0x115a4d94a WebCore::DOMWindow::find(WTF::String const&, bool, bool, bool, bool, bool, bool) const
12  0x11751b4f3 WebCore::jsDOMWindowInstanceFunctionFind(JSC::ExecState*)
13  0x338d55001028
14  0x10fa3f994 llint_entry
15  0x10fa384ae vmEntryToJavaScript
16  0x10f4662be JSC::JITCode::execute(JSC::VM*, JSC::ProtoCallFrame*)
17  0x10f3316f1 JSC::Interpreter::executeCall(JSC::ExecState*, JSC::JSObject*, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&)
18  0x10de1271b JSC::call(JSC::ExecState*, JSC::JSValue, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&)
19  0x10de12c38 JSC::call(JSC::ExecState*, JSC::JSValue, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&, WTF::NakedPtr<JSC::Exception>&)
20  0x10de136ae JSC::profiledCall(JSC::ExecState*, JSC::ProfilingReason, JSC::JSValue, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&, WTF::NakedPtr<JSC::Exception>&)
21  0x116fdd1f1 WebCore::JSMainThreadExecState::profiledCall(JSC::ExecState*, JSC::ProfilingReason, JSC::JSValue, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&, WTF::NakedPtr<JSC::Exception>&)
22  0x1176f2bed WebCore::JSEventListener::handleEvent(WebCore::ScriptExecutionContext*, WebCore::Event*)
23  0x115c6a3c9 WebCore::EventTarget::fireEventListeners(WebCore::Event&, WTF::Vector<WTF::RefPtr<WebCore::RegisteredEventListener>, 1ul, WTF::CrashOnOverflow, 16ul>)
24  0x115c69c16 WebCore::EventTarget::fireEventListeners(WebCore::Event&)
25  0x115a4192b WebCore::DOMWindow::dispatchEvent(WebCore::Event&, WebCore::EventTarget*)
26  0x115a58345 WebCore::DOMWindow::dispatchLoadEvent()
27  0x1157e6ad2 WebCore::Document::dispatchWindowLoadEvent()
28  0x1157dc54d WebCore::Document::implicitClose()
29  0x1160c21e3 WebCore::FrameLoader::checkCallImplicitClose()
30  0x1160c1ccc WebCore::FrameLoader::checkCompleted()
31  0x1160be177 WebCore::FrameLoader::finishedParsing()
ASAN:DEADLYSIGNAL
=================================================================
==2412==ERROR: AddressSanitizer: SEGV on unknown address 0x0000bbadbeef (pc 0x0001103ba529 bp 0x7fff590e6e10 sp 0x7fff590e6e00 T0)
    #0 0x1103ba528 in WTFCrash (WebKit/WebKitBuild/Debug/JavaScriptCore.framework/Versions/A/JavaScriptCore+0x2d01528)
    #1 0x11ab6cd5d in WebCore::TextIteratorCopyableText::set(WTF::String&&, unsigned int, unsigned int) (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x651cd5d)
    #2 0x11ab5d8ab in WebCore::TextIterator::emitText(WebCore::Text&, WebCore::RenderText&, int, int) (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x650d8ab)
    #3 0x11ab5ac5e in WebCore::TextIterator::handleTextNode() (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x650ac5e)
    #4 0x11ab546ef in WebCore::TextIterator::advance() (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x65046ef)
    #5 0x11ab64ed7 in WebCore::CharacterIterator::advance(int) (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x6514ed7)
    #6 0x11ab69cd4 in WebCore::findPlainText(WebCore::Range const&, WTF::String const&, unsigned char, unsigned long&) (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x6519cd4)
    #7 0x11ab696e2 in WebCore::findPlainText(WebCore::Range const&, WTF::String const&, unsigned char) (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x65196e2)
    #8 0x115b339ef in WebCore::Editor::rangeOfString(WTF::String const&, WebCore::Range*, unsigned char) (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x14e39ef)
    #9 0x115b32bc0 in WebCore::Editor::findString(WTF::String const&, unsigned char) (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x14e2bc0)
    #10 0x115a4d949 in WebCore::DOMWindow::find(WTF::String const&, bool, bool, bool, bool, bool, bool) const (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x13fd949)
    #11 0x11751b4f2 in WebCore::jsDOMWindowInstanceFunctionFind(JSC::ExecState*) (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x2ecb4f2)
    #12 0x338d55001027  (<unknown module>)
    #13 0x10fa3f993 in llint_entry (WebKit/WebKitBuild/Debug/JavaScriptCore.framework/Versions/A/JavaScriptCore+0x2386993)
    #14 0x10fa384ad in vmEntryToJavaScript (WebKit/WebKitBuild/Debug/JavaScriptCore.framework/Versions/A/JavaScriptCore+0x237f4ad)
    #15 0x10f4662bd in JSC::JITCode::execute(JSC::VM*, JSC::ProtoCallFrame*) (WebKit/WebKitBuild/Debug/JavaScriptCore.framework/Versions/A/JavaScriptCore+0x1dad2bd)
    #16 0x10f3316f0 in JSC::Interpreter::executeCall(JSC::ExecState*, JSC::JSObject*, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&) (WebKit/WebKitBuild/Debug/JavaScriptCore.framework/Versions/A/JavaScriptCore+0x1c786f0)
    #17 0x10de1271a in JSC::call(JSC::ExecState*, JSC::JSValue, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&) (WebKit/WebKitBuild/Debug/JavaScriptCore.framework/Versions/A/JavaScriptCore+0x75971a)
    #18 0x10de12c37 in JSC::call(JSC::ExecState*, JSC::JSValue, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&, WTF::NakedPtr<JSC::Exception>&) (WebKit/WebKitBuild/Debug/JavaScriptCore.framework/Versions/A/JavaScriptCore+0x759c37)
    #19 0x10de136ad in JSC::profiledCall(JSC::ExecState*, JSC::ProfilingReason, JSC::JSValue, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&, WTF::NakedPtr<JSC::Exception>&) (WebKit/WebKitBuild/Debug/JavaScriptCore.framework/Versions/A/JavaScriptCore+0x75a6ad)
    #20 0x116fdd1f0 in WebCore::JSMainThreadExecState::profiledCall(JSC::ExecState*, JSC::ProfilingReason, JSC::JSValue, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&, WTF::NakedPtr<JSC::Exception>&) (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x298d1f0)
    #21 0x1176f2bec in WebCore::JSEventListener::handleEvent(WebCore::ScriptExecutionContext*, WebCore::Event*) (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x30a2bec)
    #22 0x115c6a3c8 in WebCore::EventTarget::fireEventListeners(WebCore::Event&, WTF::Vector<WTF::RefPtr<WebCore::RegisteredEventListener>, 1ul, WTF::CrashOnOverflow, 16ul>) (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x161a3c8)
    #23 0x115c69c15 in WebCore::EventTarget::fireEventListeners(WebCore::Event&) (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x1619c15)
    #24 0x115a4192a in WebCore::DOMWindow::dispatchEvent(WebCore::Event&, WebCore::EventTarget*) (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x13f192a)
    #25 0x115a58344 in WebCore::DOMWindow::dispatchLoadEvent() (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x1408344)
    #26 0x1157e6ad1 in WebCore::Document::dispatchWindowLoadEvent() (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x1196ad1)
    #27 0x1157dc54c in WebCore::Document::implicitClose() (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x118c54c)
    #28 0x1160c21e2 in WebCore::FrameLoader::checkCallImplicitClose() (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x1a721e2)
    #29 0x1160c1ccb in WebCore::FrameLoader::checkCompleted() (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x1a71ccb)
    #30 0x1160be176 in WebCore::FrameLoader::finishedParsing() (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x1a6e176)
    #31 0x115800ab2 in WebCore::Document::finishedParsing() (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x11b0ab2)
    #32 0x116487555 in WebCore::HTMLConstructionSite::finishedParsing() (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x1e37555)
    #33 0x11677f5b7 in WebCore::HTMLTreeBuilder::finished() (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x212f5b7)
    #34 0x1164facfb in WebCore::HTMLDocumentParser::end() (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x1eaacfb)
    #35 0x1164f69e6 in WebCore::HTMLDocumentParser::attemptToRunDeferredScriptsAndEnd() (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x1ea69e6)
    #36 0x1164f664d in WebCore::HTMLDocumentParser::prepareToStopParsing() (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x1ea664d)
    #37 0x1164fad9b in WebCore::HTMLDocumentParser::attemptToEnd() (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x1eaad9b)
    #38 0x1164fadf3 in WebCore::HTMLDocumentParser::finish() (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x1eaadf3)
    #39 0x1159c597f in WebCore::DocumentWriter::end() (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x137597f)
    #40 0x11591fe56 in WebCore::DocumentLoader::finishedLoading(double) (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x12cfe56)
    #41 0x11591f98a in WebCore::DocumentLoader::notifyFinished(WebCore::CachedResource&) (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x12cf98a)
    #42 0x114c61b23 in WebCore::CachedResource::checkNotify() (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x611b23)
    #43 0x114c61d13 in WebCore::CachedResource::finishLoading(WebCore::SharedBuffer*) (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x611d13)
    #44 0x114c56d54 in WebCore::CachedRawResource::finishLoading(WebCore::SharedBuffer*) (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x606d54)
    #45 0x11a74fe8e in WebCore::SubresourceLoader::didFinishLoading(double) (WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore+0x60ffe8e)
    #46 0x1085b643e in WebKit::WebResourceLoader::didFinishResourceLoad(double) (WebKit/WebKitBuild/Debug/WebKit.framework/Versions/A/WebKit+0x1a9143e)
    #47 0x1085c46ce in void IPC::callMemberFunctionImpl<WebKit::WebResourceLoader, void (WebKit::WebResourceLoader::*)(double), std::__1::tuple<double>, 0ul>(WebKit::WebResourceLoader*, void (WebKit::WebResourceLoader::*)(double), std::__1::tuple<double>&&, std::__1::integer_sequence<unsigned long, 0ul>) (WebKit/WebKitBuild/Debug/WebKit.framework/Versions/A/WebKit+0x1a9f6ce)
    #48 0x1085c4374 in void IPC::callMemberFunction<WebKit::WebResourceLoader, void (WebKit::WebResourceLoader::*)(double), std::__1::tuple<double>, std::__1::integer_sequence<unsigned long, 0ul> >(std::__1::tuple<double>&&, WebKit::WebResourceLoader*, void (WebKit::WebResourceLoader::*)(double)) (WebKit/WebKitBuild/Debug/WebKit.framework/Versions/A/WebKit+0x1a9f374)
    #49 0x1085c1680 in void IPC::handleMessage<Messages::WebResourceLoader::DidFinishResourceLoad, WebKit::WebResourceLoader, void (WebKit::WebResourceLoader::*)(double)>(IPC::Decoder&, WebKit::WebResourceLoader*, void (WebKit::WebResourceLoader::*)(double)) (WebKit/WebKitBuild/Debug/WebKit.framework/Versions/A/WebKit+0x1a9c680)
    #50 0x1085bfa10 in WebKit::WebResourceLoader::didReceiveWebResourceLoaderMessage(IPC::Connection&, IPC::Decoder&) (WebKit/WebKitBuild/Debug/WebKit.framework/Versions/A/WebKit+0x1a9aa10)
    #51 0x1072e8da9 in WebKit::NetworkProcessConnection::didReceiveMessage(IPC::Connection&, IPC::Decoder&) (WebKit/WebKitBuild/Debug/WebKit.framework/Versions/A/WebKit+0x7c3da9)
    #52 0x106cfcfba in IPC::Connection::dispatchMessage(IPC::Decoder&) (WebKit/WebKitBuild/Debug/WebKit.framework/Versions/A/WebKit+0x1d7fba)
    #53 0x106ce57c4 in IPC::Connection::dispatchMessage(std::__1::unique_ptr<IPC::Decoder, std::__1::default_delete<IPC::Decoder> >) (WebKit/WebKitBuild/Debug/WebKit.framework/Versions/A/WebKit+0x1c07c4)
    #54 0x106cfdca5 in IPC::Connection::dispatchOneMessage() (WebKit/WebKitBuild/Debug/WebKit.framework/Versions/A/WebKit+0x1d8ca5)
    #55 0x106d0e25c in IPC::Connection::enqueueIncomingMessage(std::__1::unique_ptr<IPC::Decoder, std::__1::default_delete<IPC::Decoder> >)::$_14::operator()() (WebKit/WebKitBuild/Debug/WebKit.framework/Versions/A/WebKit+0x1e925c)
    #56 0x106d0e188 in WTF::Function<void ()>::CallableWrapper<IPC::Connection::enqueueIncomingMessage(std::__1::unique_ptr<IPC::Decoder, std::__1::default_delete<IPC::Decoder> >)::$_14>::call() (WebKit/WebKitBuild/Debug/WebKit.framework/Versions/A/WebKit+0x1e9188)
    #57 0x11043e830 in WTF::Function<void ()>::operator()() const (WebKit/WebKitBuild/Debug/JavaScriptCore.framework/Versions/A/JavaScriptCore+0x2d85830)
    #58 0x110488d50 in WTF::RunLoop::performWork() (WebKit/WebKitBuild/Debug/JavaScriptCore.framework/Versions/A/JavaScriptCore+0x2dcfd50)
    #59 0x110489b11 in WTF::RunLoop::performWork(void*) (WebKit/WebKitBuild/Debug/JavaScriptCore.framework/Versions/A/JavaScriptCore+0x2dd0b11)
    #60 0x7fff81c1f880 in __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ (/System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation+0xaa880)
    #61 0x7fff81bfefbb in __CFRunLoopDoSources0 (/System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation+0x89fbb)
    #62 0x7fff81bfe4de in __CFRunLoopRun (/System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation+0x894de)
    #63 0x7fff81bfded7 in CFRunLoopRunSpecific (/System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation+0x88ed7)
    #64 0x7fff82fde934 in RunCurrentEventLoopInMode (/System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/HIToolbox.framework/Versions/A/HIToolbox+0x30934)
    #65 0x7fff82fde76e in ReceiveNextEventCommon (/System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/HIToolbox.framework/Versions/A/HIToolbox+0x3076e)
    #66 0x7fff82fde5ae in _BlockUntilNextEventMatchingListInModeWithFilter (/System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/HIToolbox.framework/Versions/A/HIToolbox+0x305ae)
    #67 0x7fff8e643df5 in _DPSNextEvent (/System/Library/Frameworks/AppKit.framework/Versions/C/AppKit+0x48df5)
    #68 0x7fff8e643225 in -[NSApplication _nextEventMatchingEventMask:untilDate:inMode:dequeue:] (/System/Library/Frameworks/AppKit.framework/Versions/C/AppKit+0x48225)
    #69 0x7fff8e637d7f in -[NSApplication run] (/System/Library/Frameworks/AppKit.framework/Versions/C/AppKit+0x3cd7f)
    #70 0x7fff8e601367 in NSApplicationMain (/System/Library/Frameworks/AppKit.framework/Versions/C/AppKit+0x6367)
    #71 0x7fff92f09193 in _xpc_objc_main (/usr/lib/system/libxpc.dylib+0x11193)
    #72 0x7fff92f07bbd in xpc_main (/usr/lib/system/libxpc.dylib+0xfbbd)
    #73 0x106b10f73 in main (WebKit/WebKitBuild/Debug/WebKit.framework/Versions/A/XPCServices/com.apple.WebKit.WebContent.xpc/Contents/MacOS/com.apple.WebKit.WebContent.Development+0x100001f73)
    #74 0x7fff8ab8d5ac in start (/usr/lib/system/libdyld.dylib+0x35ac)
    #75 0x0  (<unknown module>)

AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (WebKit/WebKitBuild/Debug/JavaScriptCore.framework/Versions/A/JavaScriptCore+0x2d01528) in WTFCrash
==2412==ABORTING
#CRASHED - com.apple.WebKit.WebContent.Development (pid 2412)

[Renata Hodovan]

Created attachment 293055 [details]
Test

[Renata Hodovan]

Created attachment 293056 [details]
Beautified test

[Ahmad Saleem]

I am not able to hit this assert in Minibrowser WK2 Debug build based of 259136@main using attached test case.

Do we need to track it further? Thanks!