[Webkit-unassigned] [Bug 247368] New: Crash in gamepads in WKWebView apps that also listen to the GameController framework themselves

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=247368

            Bug ID: 247368
           Summary: Crash in gamepads in WKWebView apps that also listen
                    to the GameController framework themselves
           Product: WebKit
           Version: Safari 16
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit Misc.
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: beidson at apple.com

Crash in gamepads in WKWebView apps that also listen to the GameController framework themselves

If an app's UI process uses GameController framework directly before a web page in a WKWebView does, then the GameController framework tells that app about attached controllers ahead of time.

This subtlely gets WebKit's notion of attached game controllers out of sync with reality.
If the user then moves a joystick on the gamepad to cause input (but not press a button to cause the gamepad to be exposed to the web page) then we crash. (And ASSERT in debug builds)

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