[Webkit-unassigned] [Bug 132214] New: REGRESSION (r167689): Hovering file name in a file input causes a crash

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=132214

           Summary: REGRESSION (r167689): Hovering file name in a file
                    input causes a crash
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
               URL: data:text/html,<input%20type=file>
        OS/Version: Unspecified
            Status: NEW
          Keywords: Regression
          Severity: Normal
          Priority: P1
         Component: Event Handling
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: ap at webkit.org
                CC: rniwa at webkit.org


Steps to reproduce:
1. Open data:text/html,<input%20type=file>
2. Hover "no files" text.

Results: crash.

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0   com.apple.JavaScriptCore          0x0000000106fbab7e WTFCrash + 62
1   com.apple.WebCore                 0x00000001076f4479 WTF::CrashOnOverflow::overflowed() + 9
2   com.apple.WebCore                 0x000000010789dcac WebCore::EventDispatcher::dispatchEvent(WebCore::Node*, WTF::PassRefPtr<WebCore::Event>) + 2108
3   com.apple.WebCore                 0x00000001073b082d WebCore::Node::dispatchEvent(WTF::PassRefPtr<WebCore::Event>) + 29
4   com.apple.WebCore                 0x00000001078947fe WebCore::Element::dispatchMouseEvent(WebCore::PlatformMouseEvent const&, WTF::AtomicString const&, int, WebCore::Element*) + 270
5   com.apple.WebCore                 0x0000000107547932 WebCore::EventHandler::updateMouseEventTargetNode(WebCore::Node*, WebCore::PlatformMouseEvent const&, bool) + 2770
6   com.apple.WebCore                 0x0000000107546bf6 WebCore::EventHandler::dispatchMouseEvent(WTF::AtomicString const&, WebCore::Node*, bool, int, WebCore::PlatformMouseEvent const&, bool) + 70
7   com.apple.WebCore                 0x0000000107544dff WebCore::EventHandler::handleMouseMoveEvent(WebCore::PlatformMouseEvent const&, WebCore::HitTestResult*, bool) + 1279
8   com.apple.WebCore                 0x000000010754469b WebCore::EventHandler::mouseMoved(WebCore::PlatformMouseEvent const&) + 107
9   com.apple.WebCore                 0x00000001080c2097 WebCore::UserInputBridge::handleMouseMoveEvent(WebCore::PlatformMouseEvent const&, WebCore::InputSource) + 23

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