[PATCH v2 0/1] MR10648: sechost: Catch invalid HDEVNOTIFY arguments to I_ScUnregisterDeviceNotification.

[Tim Clem (＠tclem)]

Steam has started unregistering an invalid handle on shutdown, resulting in a crash. On native, invalid handles are detected. I independently tested that these errors are caught at the sechost level, not just in user32.

Native distinguishes between valid pointers that are not valid HDEVNOTIFYs and access violations, so I added a magic value to the struct so we can detect that scenario.

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  v2: sechost: Catch invalid HDEVNOTIFY arguments to I_ScUnregisterDeviceNotification.
 
https://gitlab.winehq.org/wine/wine/-/merge_requests/10648