[Bug 20548] New: Memory leak in pending overlapped I/O?

http://bugs.winehq.org/show_bug.cgi?id=20548

Summary: Memory leak in pending overlapped I/O?
           Product: Wine
           Version: 1.1.32
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: ntdll
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

Valgrinding the chromium ipc tests shows definite leaks like this:

768 bytes in 32 blocks are definitely lost in loss record 812 of 907
   by RtlAllocateHeap (heap.c:1421)
   by NtWriteFile (file.c:987)
   by WriteFile (file.c:532)
   by IPC::Channel::ChannelImpl::ProcessOutgoingMessages
(ipc_channel_win.cc:351)

and

5,572 bytes in 199 blocks are definitely lost in loss record 884 of 907
   by RtlAllocateHeap (heap.c:1421)
   by NtReadFile (file.c:660)
   by ReadFile (file.c:424)
   by IPC::Channel::ChannelImpl::ProcessIncomingMessages
(ipc_channel_win.cc:255)

What is supposed to free that memory?