[Bug 46692] New: valgrind shows several invalid frees in rpcrt4/tests/ server.c

https://bugs.winehq.org/show_bug.cgi?id=46692

Bug ID: 46692
           Summary: valgrind shows several invalid frees in
                    rpcrt4/tests/server.c
           Product: Wine
           Version: 4.2
          Hardware: x86
                OS: Linux
            Status: NEW
          Keywords: download, source, testcase, valgrind
          Severity: normal
          Priority: P2
         Component: rpc
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: Gentoo

For example:
==3664== 1 errors in context 1 of 15:                                           
==3664== Thread 6:                                                              
==3664== Invalid free() / delete / delete[] / realloc()                         
==3664==    at 0x7BC48AEE: notify_free (heap.c:268)                             
==3664==    by 0x7BC4B68D: RtlFreeHeap (heap.c:1772)                            
==3664==    by 0x4A95E0E: MIDL_user_free (server.c:287)                         
==3664==    by 0x541F5C2: NdrFree (ndr_marshall.c:463)                          
==3664==    by 0x54246C3: PointerFree (ndr_marshall.c:1171)                     
==3664==    by 0x5424761: NdrPointerFree (ndr_marshall.c:1649)                  
==3664==    by 0x542EF28: call_freer (ndr_stubless.c:148)                       
==3664==    by 0x5430110: stub_do_args (ndr_stubless.c:1214)                    
==3664==    by 0x5431C9B: NdrStubCall2 (ndr_stubless.c:1502)                    
==3664==    by 0x5431DB5: NdrServerCall2 (ndr_stubless.c:1539)                  
==3664==    by 0x5440612: process_request_packet (rpc_server.c:439)             
==3664==    by 0x5441615: RPCRT4_process_packet (rpc_server.c:517)              
==3664==    by 0x54416A6: RPCRT4_worker_thread (rpc_server.c:539)               
==3664==    by 0x7BC858C7: process_rtl_work_item (threadpool.c:349)             
==3664==    by 0x7BC86E2B: threadpool_worker_proc (threadpool.c:2126)           
==3664==    by 0x7BC785A3: ??? (in
/home/austin/wine-valgrind/dlls/ntdll/ntdll.dll.so)               
==3664==    by 0x7BC7BA7E: call_thread_func (signal_i386.c:2701)                
==3664==    by 0x7BC78595: ??? (in
/home/austin/wine-valgrind/dlls/ntdll/ntdll.dll.so)               
==3664==  Address 0x4ac14dc is in a r-x mapped file
/home/austin/wine-valgrind/dlls/rpcrt4/tests/rpcrt4_test.exe.so segment
==3664==