WebKit WebCore::AccessibilityRenderObject::handleAriaExpandedChanged Use-After-Free

WebKit: use-after-free in WebCore::AccessibilityRenderObject::handleAriaExpandedChanged CVE-2017-7043 There is a use-after-free security vulnerability in WebKit. The vulnerability was confirmed on ASan build of WebKit nightly. Note that accessibility features need to be enabled in order to trigge...