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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - AX: iOS: Crash at accessibilityObjectForMainFramePlugin()"
href="https://bugs.webkit.org/show_bug.cgi?id=146399">146399</a>
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<th>Summary</th>
<td>AX: iOS: Crash at accessibilityObjectForMainFramePlugin()
</td>
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<th>Classification</th>
<td>Unclassified
</td>
</tr>
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<th>Product</th>
<td>WebKit
</td>
</tr>
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<th>Version</th>
<td>528+ (Nightly build)
</td>
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<th>Hardware</th>
<td>All
</td>
</tr>
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<th>OS</th>
<td>All
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
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<th>Keywords</th>
<td>InRadar
</td>
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<th>Severity</th>
<td>Normal
</td>
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<th>Priority</th>
<td>P2
</td>
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<th>Component</th>
<td>Accessibility
</td>
</tr>
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<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
</td>
</tr>
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<th>Reporter</th>
<td>cfleizach@apple.com
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</tr>
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<th>CC</th>
<td>webkit-bug-importer@group.apple.com
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<pre>Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Subtype: KERN_INVALID_ADDRESS at 0x00000018
Triggered by Thread: 0
Thread 0 name: Dispatch queue: com.apple.main-thread
Thread 0 Crashed ↩:
0 WebKit 0x2bef7704 WebKit::WebPage::accessibilityObjectForMainFramePlugin() + 4 (memory:2644)
1 WebKit 0x2bf74a46 -[WKAccessibilityWebPageObjectBase accessibilityRootObjectWrapper] + 42 (WKAccessibilityWebPageObjectBase.mm:57)
2 Foundation 0x27ddec20 -[NSObject(NSKeyValueCoding) valueForKey:] + 220 (NSKeyValueCoding.m:380)
3 AccessibilityUtilities 0x2c4cb8ea __57-[NSObject(UIAccessibilitySafeCategory) safeValueForKey:]_block_invoke + 26 (AXSafeValue.m:288)
4 AccessibilityUtilities 0x2c4cbd24 -[NSObject(UIAccessibilitySafeCategory) _accessibilityPerformSafeValueKeyBlock:withKey:onClass:] + 84 (AXSafeValue.m:341)
5 AccessibilityUtilities 0x2c4cb5f2 -[NSObject(UIAccessibilitySafeCategory) safeValueForKey:] + 230 (AXSafeValue.m:287)
6 WebProcess 0x252d7dae -[WKAccessibilityWebPageObjectAccessibility _initializeRootIfNecessary] + 30 (WKAccessibilityWebPageObjectAccessibility.m:141)
7 WebProcess 0x252d7b6e -[WKAccessibilityWebPageObjectAccessibility accessibilityHitTest:] + 26 (WKAccessibilityWebPageObjectAccessibility.m:80)
8 WebProcess 0x252d8bae -[WKNSObjectAccessibility accessibilityHitTest:] + 234 (NSObject+AXWebProcess.m:33)
9 AXRuntime 0x2c3de9c6 _copyElementAtPositionCallback + 126 (AXSimpleRuntimeManager.m:114)
10 AXRuntime 0x2c3e53fa _AXXMIGCopyElementAtPosition + 178 (AccessibilityPriv.m:1129)
<rdar://problem/19604231></pre>
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