[Bug 47394] New: Valgrind reports Invalid read of size 4 one frame below call_dll_entry_point

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=47394

            Bug ID: 47394
           Summary: Valgrind reports Invalid read of size 4 one frame
                    below call_dll_entry_point
           Product: Wine
           Version: 4.10
          Hardware: x86
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: ntdll
          Assignee: wine-bugs at winehq.org
          Reporter: jeffersoncarpenter2 at gmail.com
      Distribution: ---

Created attachment 64741
  --> https://bugs.winehq.org/attachment.cgi?id=64741
Output of valgrind --trace-children=yes wine main.exe

Steps to reproduce:

* Build wine-4.10 for 32 bits.
* Using i686-w64-mingw32-gcc, compile 'int main() { return 0; }'
* Disable the wine preloader (chmod -x wine-preloader)
* Run with valgrind


Valgrind reports an invalid read of size 4 one frame below call_dll_entry_point
while loading rpcrt4.dll.  Prior to this it (at least, a wine process with the
same process id) successfully loads ntdll.dll, KERNEL32.dll, advapi32.dll,
msvcrt.dll calling call_dll_entry_point without any issues, as confirmed by
inserting the line

FIXME("Loading %s %i %p\n", debugstr_w(wm->ldr.BaseDllName.Buffer), getpid(),
(void*)entry);

above

retv = call_dll_entry_point( entry, module, reason, lpReserved );

inside of MODULE_InitDLL.

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