[Bug 48183] New: Running most applications causes a crash in krnl386.exe DllMain() when the Windows version is set to non-NT

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=48183

            Bug ID: 48183
           Summary: Running most applications causes a crash in
                    krnl386.exe DllMain() when the Windows version is set
                    to non-NT
           Product: Wine
           Version: 4.16
          Hardware: x86
                OS: Linux
            Status: NEW
          Keywords: regression
          Severity: minor
          Priority: P2
         Component: kernel32
          Assignee: wine-bugs at winehq.org
          Reporter: z.figura12 at gmail.com
                CC: julliard at winehq.org
   Regression SHA1: 911e50849a9bc05ab11d896a3b7f7a3b3462fabd
      Distribution: ---

The sequence of events goes as follows:

1. ntdll loads the main executable,
2. which loads e.g. advapi32,
3. which loads kernelbase,
4. which triggers attaching of kernel32,
5. which, if the Windows version is lower than NT, loads krnl386.exe,
6. which loads and attaches krnl386.exe,
7. which calls GetCommandLineA(),
8. which returns NULL, since kernelbase has not been attached yet,
9. which causes a crash when krnl386 tries to dereference it.

The crash is silently caught, but I'm not sure that any given 16-bit
application still functions.

Most likely this will be fixed by moving more things to kernelbase; I'm filing
this bug just in case it isn't.

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