[Webkit-unassigned] [Bug 186629] New: AX: Crash in AccessibilityNodeObject::textUnderElement(WebCore::AccessibilityTextUnderElementMode) const + 536

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=186629

            Bug ID: 186629
           Summary: AX: Crash in
                    AccessibilityNodeObject::textUnderElement(WebCore::Acc
                    essibilityTextUnderElementMode) const + 536
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: All
                OS: All
            Status: NEW
          Keywords: InRadar
          Severity: Normal
          Priority: P2
         Component: Accessibility
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: n_wang at apple.com
                CC: n_wang at apple.com, webkit-bug-importer at group.apple.com

0   WebCore                             0x00000001977d4b68 WebCore::AccessibilityNodeObject::textUnderElement(WebCore::AccessibilityTextUnderElementMode) const + 536 
1   WebCore                             0x00000001977d4b38 WebCore::AccessibilityNodeObject::textUnderElement(WebCore::AccessibilityTextUnderElementMode) const + 488 
2   WebCore                             0x00000001977e40f4 WebCore::AccessibilityRenderObject::textUnderElement(WebCore::AccessibilityTextUnderElementMode) const + 876 (./accessibility/AccessibilityRenderObject.cpp:689)
3   WebCore                             0x00000001977d5104 WebCore::AccessibilityNodeObject::textUnderElement(WebCore::AccessibilityTextUnderElementMode) const + 1972 (./accessibility/AccessibilityNodeObject.cpp:1779)
4   WebCore                             0x00000001977e40f4 WebCore::AccessibilityRenderObject::textUnderElement(WebCore::AccessibilityTextUnderElementMode) const + 876 (./accessibility/AccessibilityRenderObject.cpp:689)
5   WebCore                             0x00000001977d0224 WebCore::accessibleNameForNode(WebCore::Node*, WebCore::Node*) + 1304 (./accessibility/AccessibilityNodeObject.cpp:1986)
6   WebCore                             0x00000001977d6438 WebCore::AccessibilityNodeObject::accessibilityDescriptionForElements(WTF::Vector<WebCore::Element*, 0ul, WTF::CrashOnOverflow, 16ul>&) const + 108 (./accessibility/AccessibilityNodeObject.cpp:2031)
7   WebCore                             0x00000001977d680c WebCore::AccessibilityNodeObject::ariaLabeledByAttribute() const + 88 (./accessibility/AccessibilityNodeObject.cpp:2056)
8   WebCore                             0x00000001977d26a0 WebCore::AccessibilityNodeObject::ariaLabeledByText(WTF::Vector<WebCore::AccessibilityText, 0ul, WTF::CrashOnOverflow, 16ul>&) const + 56 (./accessibility/AccessibilityNodeObject.cpp:1478)
9   WebCore                             0x00000001977d0aec WebCore::AccessibilityNodeObject::alternativeText(WTF::Vector<WebCore::AccessibilityText, 0ul, WTF::CrashOnOverflow, 16ul>&) const + 248 (./accessibility/AccessibilityNodeObject.cpp:1315)
10  WebCore                             0x00000001977d3ba0 WebCore::AccessibilityNodeObject::accessibilityText(WTF::Vector<WebCore::AccessibilityText, 0ul, WTF::CrashOnOverflow, 16ul>&) + 52 (./accessibility/AccessibilityNodeObject.cpp:1467)
11  WebCore                             0x000000019837590c -[WebAccessibilityObjectWrapperBase baseAccessibilityTitle] + 220 (/BuildRoot/Library/Caches/com.apple.xbs/Sources/WebCore/WebCore-7606.1.19.1/accessibility/mac/WebAccessibilityObjectWrapperBase.mm:338)
12  WebCore                             0x0000000196fa5a64 -[WebAccessibilityObjectWrapper accessibilityLabel] + 100 (./accessibility/ios/WebAccessibilityObjectWrapperIOS.mm:1132)

<rdar://problem/40828348>

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