174560 2017-07-15 21:37:59 -0700 REGRESSION(r218910): Crash when password field changes to text field 2017-07-18 16:08:33 -0700 1 1 1 Unclassified WebKit Accessibility WebKit Local Build Mac All RESOLVED FIXED InRadar P2 Normal --- 1 dbates rniwa aboxhall apinheiro buildbot cfleizach commit-queue dmazzoni d_russell jcraig jdiggs n_wang rniwa samuel_white webkit-bug-importer zalan oldest_to_newest 1329320 0 315592 dbates 2017-07-15 21:37:59 -0700 Created attachment 315592 Test case Perform the following: 1. Open the attached test case. 2. Click the password field to focus it. Then WebKit will crash in AXObjectCache::textMarkerDataForFirstPositionInTextControl() because we deference nullptr returned by AXObjectCache::getOrCreate(). <rdar://problem/33261681> 1329321 1 dbates 2017-07-15 21:38:37 -0700 (lldb) bt * thread #1, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x10) * frame #0: 0x0000000104622f9c WebCore`WebCore::AccessibilityObject::axObjectID(this=0x0000000000000000) const at AccessibilityObject.h:795 frame #1: 0x00000001047f223f WebCore`WebCore::AXObjectCache::textMarkerDataForFirstPositionInTextControl(this=0x000000011b99f380, textControl=0x000000011b9dd380) at AXObjectCache.cpp:2199 frame #2: 0x000000010720ca7f WebCore`::-[WebAccessibilityObjectWrapper textMarkerForFirstPositionInTextControl:](self=0x0000610000000cf0, _cmd="textMarkerForFirstPositionInTextControl:", textControl=0x000000011b9dd380) at WebAccessibilityObjectWrapperMac.mm:703 frame #3: 0x0000000104818930 WebCore`WebCore::addTextMarkerFor(change=2 key/value pairs, object=0x000000011b9ed5a0, textControl=0x000000011b9dd380) at AXObjectCacheMac.mm:420 frame #4: 0x00000001048184ba WebCore`NSDictionary* WebCore::textReplacementChangeDictionary<WebCore::HTMLTextFormControlElement>(object=0x000000011b9ed5a0, type=AXTextEditTypeInsert, string={ length = 10, contents = 'Click here' }, markerTarget=0x000000011b9dd380) at AXObjectCacheMac.mm:438 frame #5: 0x00000001048182d1 WebCore`WebCore::AXObjectCache::postTextReplacementPlatformNotificationForTextControl(this=0x000000011b99f380, object=0x000000011b9ed5a0, deletedText={ length = 0, contents = '' }, insertedText={ length = 10, contents = 'Click here' }, textControl=0x000000011b9dd380) at AXObjectCacheMac.mm:495 frame #6: 0x00000001047ed6b3 WebCore`WebCore::AXObjectCache::postTextReplacementNotificationForTextControl(this=0x000000011b99f380, textControl=0x000000011b9dd380, deletedText={ length = 0, contents = '' }, insertedText={ length = 10, contents = 'Click here' }) at AXObjectCache.cpp:1308 frame #7: 0x0000000105415833 WebCore`WebCore::HTMLTextFormControlElement::setInnerTextValue(this=0x000000011b9dd380, value={ length = 10, contents = 'Click here' }) at HTMLTextFormControlElement.cpp:582 frame #8: 0x000000010708050c WebCore`WebCore::TextFieldInputType::updateInnerTextValue(this=0x000000011b95baa8) at TextFieldInputType.cpp:576 frame #9: 0x000000010535df29 WebCore`WebCore::HTMLInputElement::updateType(this=0x000000011b9dd380) at HTMLInputElement.cpp:516 frame #10: 0x000000010535f0eb WebCore`WebCore::HTMLInputElement::parseAttribute(this=0x000000011b9dd380, name=0x00007fff5fbfda28, value={ length = 4, contents = 'text' }) at HTMLInputElement.cpp:692 frame #11: 0x0000000104f0cbf9 WebCore`WebCore::Element::attributeChanged(this=0x000000011b9dd380, name=0x00007fff5fbfda28, oldValue={ length = 8, contents = 'password' }, newValue={ length = 4, contents = 'text' }, (null)=ModifiedDirectly) at Element.cpp:1333 frame #12: 0x0000000106e79e0f WebCore`WebCore::StyledElement::attributeChanged(this=0x000000011b9dd380, name=0x00007fff5fbfda28, oldValue={ length = 8, contents = 'password' }, newValue={ length = 4, contents = 'text' }, reason=ModifiedDirectly) at StyledElement.cpp:90 frame #13: 0x0000000104f18eb4 WebCore`WebCore::Element::didModifyAttribute(this=0x000000011b9dd380, name=0x00007fff5fbfda28, oldValue={ length = 8, contents = 'password' }, newValue={ length = 4, contents = 'text' }) at Element.cpp:3376 frame #14: 0x0000000104f0c7b9 WebCore`WebCore::Element::setAttributeInternal(this=0x000000011b9dd380, index=0, name=0x00007fff5fbfda98, newValue={ length = 4, contents = 'text' }, inSynchronizationOfLazyAttribute=NotInSynchronizationOfLazyAttribute) at Element.cpp:1290 frame #15: 0x0000000104f0c491 WebCore`WebCore::Element::setAttribute(this=0x000000011b9dd380, localName={ length = 4, contents = 'type' }, value={ length = 4, contents = 'text' }) at Element.cpp:1237 frame #16: 0x0000000105a7e2f7 WebCore`WebCore::jsElementPrototypeFunctionSetAttributeBody(state=0x00007fff5fbfdcb0, castedThis=0x000000012066c0c0, throwScope=0x00007fff5fbfdc38) at JSElement.cpp:1893 frame #17: 0x0000000105a7324e WebCore`long long WebCore::IDLOperation<WebCore::JSElement>::call<&(state=0x00007fff5fbfdcb0, operationName="setAttribute")), (WebCore::CastedThisErrorBehavior)0>(JSC::ExecState&, char const*) at JSDOMOperation.h:53 frame #18: 0x0000000105a72fdc WebCore`WebCore::jsElementPrototypeFunctionSetAttribute(state=0x00007fff5fbfdcb0) at JSElement.cpp:1899 frame #19: 0x00005f4f670038e8 frame #20: 0x000000011173d183 JavaScriptCore`llint_entry at LowLevelInterpreter.asm:795 frame #21: 0x00000001117357e7 JavaScriptCore`llintPCRangeStart at LowLevelInterpreter64.asm:256 frame #22: 0x00000001115229fe JavaScriptCore`JSC::JITCode::execute(this=0x00000001251db500, vm=0x0000000120500000, protoCallFrame=0x00007fff5fbfdf08) at JITCode.cpp:81 frame #23: 0x00000001114d2af5 JavaScriptCore`JSC::Interpreter::executeCall(this=0x000000011b9fcc68, callFrame=0x00000001206e00e8, function=0x0000000120678a90, callType=JS, callData=0x00007fff5fbfe520, thisValue=JSValue @ 0x00007fff5fbfe020, args=0x00007fff5fbfe408) at Interpreter.cpp:971 frame #24: 0x0000000110c9f7f8 JavaScriptCore`JSC::call(exec=0x00000001206e00e8, functionObject=JSValue @ 0x00007fff5fbfe0a0, callType=JS, callData=0x00007fff5fbfe520, thisValue=JSValue @ 0x00007fff5fbfe098, args=0x00007fff5fbfe408) at CallData.cpp:40 frame #25: 0x0000000110c9f909 JavaScriptCore`JSC::call(exec=0x00000001206e00e8, functionObject=JSValue @ 0x00007fff5fbfe190, callType=JS, callData=0x00007fff5fbfe520, thisValue=JSValue @ 0x00007fff5fbfe188, args=0x00007fff5fbfe408, returnedException=0x00007fff5fbfe430) at CallData.cpp:47 frame #26: 0x0000000110c9fb8d JavaScriptCore`JSC::profiledCall(exec=0x00000001206e00e8, reason=Other, functionObject=JSValue @ 0x00007fff5fbfe220, callType=JS, callData=0x00007fff5fbfe520, thisValue=JSValue @ 0x00007fff5fbfe218, args=0x00007fff5fbfe408, returnedException=0x00007fff5fbfe430) at CallData.cpp:66 frame #27: 0x00000001057d0b5b WebCore`WebCore::JSMainThreadExecState::profiledCall(exec=0x00000001206e00e8, reason=Other, functionObject=JSValue @ 0x00007fff5fbfe2b0, callType=JS, callData=0x00007fff5fbfe520, thisValue=JSValue @ 0x00007fff5fbfe2a8, args=0x00007fff5fbfe408, returnedException=0x00007fff5fbfe430) at JSMainThreadExecState.h:72 frame #28: 0x0000000105aa6f19 WebCore`WebCore::JSEventListener::handleEvent(this=0x000000011b9e1b60, scriptExecutionContext=0x000000011b92e000, event=0x000000011b987258) at JSEventListener.cpp:155 frame #29: 0x0000000104f73ac6 WebCore`WebCore::EventTarget::fireEventListeners(this=0x000000011b9dd380, event=0x000000011b987258, listeners={ size = 1, capacity = 0 }) at EventTarget.cpp:264 frame #30: 0x0000000104f7368e WebCore`WebCore::EventTarget::fireEventListeners(this=0x000000011b9dd380, event=0x000000011b987258) at EventTarget.cpp:209 frame #31: 0x00000001066209b1 WebCore`WebCore::Node::handleLocalEvents(this=0x000000011b9dd380, event=0x000000011b987258) at Node.cpp:2368 frame #32: 0x0000000104f416fb WebCore`WebCore::EventContext::handleLocalEvents(this=0x000000011b9e77f8, event=0x000000011b987258) const at EventContext.cpp:54 frame #33: 0x0000000104f419ca WebCore`WebCore::MouseOrFocusEventContext::handleLocalEvents(this=0x000000011b9e77f8, event=0x000000011b987258) const at EventContext.cpp:85 frame #34: 0x0000000104f423f8 WebCore`WebCore::dispatchEventInDOM(event=0x000000011b987258, path=0x00007fff5fbfe928) at EventDispatcher.cpp:105 frame #35: 0x0000000104f41e97 WebCore`WebCore::EventDispatcher::dispatchEvent(node=0x000000011b9e1958, event=0x000000011b987258) at EventDispatcher.cpp:163 frame #36: 0x0000000106620a0d WebCore`WebCore::Node::dispatchEvent(this=0x000000011b9e1958, event=0x000000011b987258) at Node.cpp:2382 frame #37: 0x0000000104f062bf WebCore`WebCore::Element::dispatchMouseEvent(this=0x000000011b9e1958, platformEvent=0x00007fff5fbfeed0, eventType={ length = 7, contents = 'mouseup' }, detail=1, relatedTarget=0x0000000000000000) at Element.cpp:285 frame #38: 0x0000000104f4b21c WebCore`WebCore::EventHandler::dispatchMouseEvent(this=0x000000011b9f1600, eventType={ length = 7, contents = 'mouseup' }, targetNode=0x000000011b9e1958, (null)=true, clickCount=1, platformMouseEvent=0x00007fff5fbfeed0, setUnder=false) at EventHandler.cpp:2553 frame #39: 0x0000000104f4dbe3 WebCore`WebCore::EventHandler::handleMouseReleaseEvent(this=0x000000011b9f1600, platformMouseEvent=0x00007fff5fbfeed0) at EventHandler.cpp:2077 frame #40: 0x0000000104f5cdb8 WebCore`WebCore::EventHandler::mouseUp(this=0x000000011b9f1600, event=0x0000600000121180, correspondingPressureEvent=0x0000000000000000) at EventHandlerMac.mm:547 frame #41: 0x0000000103c8b507 WebKitLegacy`::-[WebHTMLView mouseUp:](self=0x0000600000169c00, _cmd="mouseUp:", event=0x0000600000121180) at WebHTMLView.mm:4777 frame #42: 0x00007fffbc60fb0a AppKit`-[NSWindow(NSEventRouting) _reallySendEvent:isDelayedEvent:] + 1544 frame #43: 0x00007fffbc60f136 AppKit`-[NSWindow(NSEventRouting) sendEvent:] + 541 frame #44: 0x00007fffbc493835 AppKit`-[NSApplication(NSEvent) sendEvent:] + 1145 frame #45: 0x00007fffbbd0e98b AppKit`-[NSApplication run] + 1002 frame #46: 0x00007fffbbcd9372 AppKit`NSApplicationMain + 1237 frame #47: 0x0000000100008e09 MiniBrowser`main(argc=5, argv=0x00007fff5fbff808) at main.m:32 frame #48: 0x00007fffd4034235 libdyld.dylib`start + 1 frame #49: 0x00007fffd4034235 libdyld.dylib`start + 1 (lldb) 1329325 2 dbates 2017-07-15 21:42:16 -0700 (In reply to Daniel Bates from comment #0) > Created attachment 315592 [details] > Test case > > Perform the following: > > 1. Open the attached test case. > 2. Click the password field to focus it. > I forgot to mention that these steps assume that VoiceOver is enabled. You can enable VoiceOver by pressing Command-F5 or by opening System Preferences > Accessibility, click Voice Over and then click Enable VoiceOver. 1329465 3 rniwa 2017-07-16 18:35:43 -0700 I'll work on this. 1329904 4 rniwa 2017-07-18 00:05:58 -0700 Thanks for the reduction, Dan. This was very useful. 1329932 5 315779 rniwa 2017-07-18 00:51:00 -0700 Created attachment 315779 Fixes the bug 1330013 6 315779 dbates 2017-07-18 09:42:33 -0700 Comment on attachment 315779 Fixes the bug View in context: https://bugs.webkit.org/attachment.cgi?id=315779&action=review > LayoutTests/accessibility/mac/input-type-change-crash-2.html:12 > + testRunner.dumpAsText(); > + accessibilityController.enableEnhancedAccessibility(true); > + internals.updateLayoutIgnorePendingStylesheetsAndRunPostLayoutTasks(); This test will not run in MiniBrowser or Safari as it makes use of DRT/WKTR functionality that is not available unconditionally. I always find it convenient when a layout test can be run by hand with manual instructions. 1330100 7 315829 rniwa 2017-07-18 13:45:45 -0700 Created attachment 315829 Patch for landing 1330119 8 315829 commit-queue 2017-07-18 14:24:10 -0700 Comment on attachment 315829 Patch for landing Rejecting attachment 315829 from commit-queue. Failed to run "['/Volumes/Data/EWS/WebKit/Tools/Scripts/webkit-patch', '--status-host=webkit-queues.webkit.org', '--bot-id=webkit-cq-02', 'land-attachment', '--force-clean', '--non-interactive', '--parent-command=commit-queue', 315829, '--port=mac']" exit_code: 2 cwd: /Volumes/Data/EWS/WebKit Last 500 characters of output: -> origin/master Partial-rebuilding .git/svn/refs/remotes/origin/master/.rev_map.268f45cc-cd09-0410-ab3c-d52691b4dbfc ... Currently at 219625 = f8c2d45d56c37002ff86dcf361215ec48c163462 r219626 = b56b9a00db8cda658322dbe07cd66cd444b6900f r219627 = 31d1684934f780819588e68c0071e4c98ba0a08b Done rebuilding .git/svn/refs/remotes/origin/master/.rev_map.268f45cc-cd09-0410-ab3c-d52691b4dbfc First, rewinding head to replay your work on top of it... Fast-forwarded master to refs/remotes/origin/master. Full output: http://webkit-queues.webkit.org/results/4143846 1330184 9 rniwa 2017-07-18 16:08:33 -0700 Committed r219638: <http://trac.webkit.org/changeset/219638> 315592 2017-07-15 21:37:59 -0700 2017-07-15 21:37:59 -0700 Test case test.html text/html 178 dbates PCFET0NUWVBFIGh0bWw+CjxodG1sPgo8Ym9keT4KPHA+Q2xpY2sgdGhlIHBhc3N3b3JkIGZpZWxk IHRvIGZvY3VzLjwvcD4gCjxpbnB1dCB0eXBlPSJwYXNzd29yZCIgdmFsdWU9IkNsaWNrIGhlcmUi IG9ubW91c2V1cD0idGhpcy5zZXRBdHRyaWJ1dGUoJ3R5cGUnLCAndGV4dCcpIj4KPC9ib2R5Pgo8 L2h0bWw+Cg== 315779 2017-07-18 00:51:00 -0700 2017-07-18 13:45:43 -0700 Fixes the bug bug-174560-20170718005100.patch text/plain 5610 rniwa U3VidmVyc2lvbiBSZXZpc2lvbjogMjE5NTk5CmRpZmYgLS1naXQgYS9Tb3VyY2UvV2ViQ29yZS9D aGFuZ2VMb2cgYi9Tb3VyY2UvV2ViQ29yZS9DaGFuZ2VMb2cKaW5kZXggMGEzNzBkMGI2YTYyOTVj MjU3YzMwOGIzMzBjZDhkZGNhMDYxNjU2Mi4uY2ZjNTEwZjEzYTc1MmJjZjJmNjdjZmYyNWM5OGYx MTI5ZjEwNmMwYyAxMDA2NDQKLS0tIGEvU291cmNlL1dlYkNvcmUvQ2hhbmdlTG9nCisrKyBiL1Nv 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