[Bug 48442] New: MPGUI crash on start in MSVCRT__wctomb_s_l in msvcr100

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=48442

Bug ID: 48442
           Summary: MPGUI crash on start in MSVCRT__wctomb_s_l in
                    msvcr100
           Product: Wine
           Version: 5.0-rc4
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: msvcrt
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Created attachment 66220
  --> https://bugs.winehq.org/attachment.cgi?id=66220
stacktrace

Hi, 
MPGUI  (a C++/CLI application, so C++ app that use the .NET runtime )crash on 
start with a Unhandled exception: page fault on read access to 0x00000020 in
32-bit code (0x7c6e61a0).

PArt of the stacktrace:
0 0x7c6e61a0 MSVCRT__wctomb_s_l+0x1180() in msvcr100 (0x0032f378)
  1 0x7c6e87f0 MSVCRT_vsnprintf+0x3f() in msvcr100 (0x0032f3c8)
  2 0x7c6e8952 MSVCRT_sprintf_s+0x21() in msvcr100 (0x0032f3f8)

0x7c6e61a0 MSVCRT__wctomb_s_l+0x1180 in msvcr100: movzbl    0x0(%edi),%eax

This part of the stacktrace suggest that native dotnet may be a workaround:

10 0x6c54c5ee mono_jit_runtime_invoke+0x46d(exc=<is not available>)
[Z:\vagrant\mono\mono\mini\mini-runtime.c:3184] in libmono-2.0-x86 (0x005f6b48)
  11 0x6c71da32 object_new_handle_common_tail+0x1d1(o=<is not available>,
klass=<is not available>, error=<is not available>)
[Z:\vagrant\mono\mono\metadata\object.c:3029] in libmono-2.0-x86 (0x00000000)
  12 0x6c722105 mono_runtime_object_init+0xd4()
[Z:\vagrant\mono\mono\metadata\object.c:5151] in libmono-2.0-x86 (0x00000000)
  13 0x6c5a3372 mono_jit_exec+0x191() [Z:\vagrant\mono\mono\mini\driver.c:1325]

Full stacktrace attached.

Prefix is new. 32bit
Wine Log is empty.