New subject: [Bug 45568] League of Legends 8.12+ fails to start a game ( anticheat engine, validation of loaded DLLs)

4 Aug 2018


      https://bugs.winehq.org/show_bug.cgi?id=45568
Bug ID: 45568
           Summary: League of Legends 8.12+ fails to start a game
                    (anticheat engine, validation of loaded DLLs)
           Product: Wine
           Version: 3.13
          Hardware: x86
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: wine-bugs@winehq.org
          Reporter: z.figura12@gmail.com
      Distribution: ---
Diagnosed by Andrew Wesie; partially split off from bug 45327.
The game marks all pages of its executable as NOACCESS, then registers a
vectored exception handler. When a page is accessed, it will determine if the
access is authorized, and if so, it will decrypt the page and mark it as
readable. The game only allows access from its own modules, or from a module
explicitly loaded by LoadLibrary; in specific, libraries that are automatically
loaded as dependences are not considered authorized.
In particular this fails because the game loads dinput8, whose real
implementation lives in dinput, and this will attempt to access data via
callbacks.
If this diagnosis is complete, this bug is a WONTFIX. We can easily work around
this specific case by sharing source between dinput and dinput8, but no similar
solution exists for other dependencies.
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[Bug 45568] New: League of Legends 8.12+ fails to start a game ( anticheat engine, validation of loaded DLLs)