[Bug 50341] New: MS-MPI 10.x crashes due to use-after-free in RpcAsyncCompleteCall()

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=50341

Bug ID: 50341
           Summary: MS-MPI 10.x crashes due to use-after-free in
                    RpcAsyncCompleteCall()
           Product: Wine
           Version: 5.6
          Hardware: x86-64
               URL: https://github.com/microsoft/Microsoft-MPI/releases/do
                    wnload/v10.1.1/msmpisetup.exe
                OS: Linux
            Status: NEW
          Keywords: download
          Severity: normal
          Priority: P2
         Component: rpc
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Continued from bug 45699.

RPCRT4_process_packet() frees the stub message which RpcAsyncCompleteCall()
subsequently uses.