[Bug 45568] New: League of Legends 8.12+ fails to start a game ( anticheat engine, validation of loaded DLLs)
wine-bugs at winehq.org
wine-bugs at winehq.org
Sat Aug 4 11:41:32 CDT 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 at winehq.org
Reporter: z.figura12 at 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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