[Bug 36651] New: shlwapi/tests/path.c: stack smashing detected (valgrind/gcc-4.9.0)

https://bugs.winehq.org/show_bug.cgi?id=36651

Bug ID: 36651
           Summary: shlwapi/tests/path.c: stack smashing detected
                    (valgrind/gcc-4.9.0)
           Product: Wine
           Version: 1.7.19
          Hardware: x86
                OS: Linux
            Status: NEW
          Keywords: download, source, testcase
          Severity: normal
          Priority: P2
         Component: shlwapi
          Assignee: [e-mail]
          Reporter: [e-mail]

Created attachment 48695
  --> https://bugs.winehq.org/attachment.cgi?id=48695
output

If I compile wine with 4.9.0 and run it under valgrind, I noticed that
shlwapi/path crashes pretty spectacularly:

*** stack smashing detected ***: shlwapi_test.exe.so terminated
======= Backtrace: =========
/lib32/libc.so.6(+0x6e96d)[0x42a296d]
/lib32/libc.so.6(__fortify_fail+0x45)[0x43347d5]
/lib32/libc.so.6(+0x10078a)[0x433478a]
/home/austin/wine-valgrind/dlls/shlwapi/shlwapi.dll.so(+0x50314)[0x5100314]
/home/austin/wine-valgrind/dlls/shlwapi/shlwapi.dll.so(PathCombineW+0x2e1)[0x50dfa84]
/home/austin/wine-valgrind/dlls/shlwapi/shlwapi.dll.so(PathCombineA+0x18f)[0x50df743]

I'll attach the full output