[ros-bugs] [Bug 3436] New: Failed to copy message to kernel: invalid usermode buffer

[ReactOS.Bugzilla at www.reactos.org]

http://www.reactos.org/bugzilla/show_bug.cgi?id=3436

           Summary: Failed to copy message to kernel: invalid usermode
                    buffer
           Product: ReactOS
           Version: TRUNK
          Platform: QEmu
        OS/Version: ReactOS
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: Win32
        AssignedTo: ros-bugs at reactos.org
        ReportedBy: samdwise51 at gmail.com
         QAContact: ros-bugs at reactos.org


While downloading Mozilla activex control on r34227 (assert added for kicks):

(subsystems\win32\win32k\ntuser\message.c:1108) Failed to copy message to
kernel: invalid usermode buffer
Assertion 'FALSE' failed at subsystems\win32\win32k\ntuser\message.c line 1109
Entered debugger on embedded INT3 at 0x0008:0x808cb0c2.
kdb:> bt
←[7h♣Eip:
<NTOSKRNL.EXE:cb0c3 (lib\rtl\i386\debug_asm.S:33 (DbgBreakPoint at 0))>
Frames:
<win32k.sys:8629f (subsystems/win32/win32k/ntuser/message.c:1110
(@CopyMsgToKernelMem at 12))>
<win32k.sys:871ca (subsystems/win32/win32k/ntuser/message.c:1597
(@co_IntDoSendMessage at 24))>
<win32k.sys:87372 (subsystems/win32/win32k/ntuser/message.c:1683
(NtUserSendMessage at 20))>
<NTOSKRNL.EXE:ade8a (ntoskrnl\ke\i386\trap.s:244 (KiFastCallEntry))>
<ntdll.dll:6c4a> dll\ntdll\main\i386\dispatch.S:297 (KiFastSystemCallRet at 0)
<SHDOCVW.dll:6074> dll/win32/shdocvw/shdocvw_main.c:237 (dlOnProgress at 20)
<urlmon.dll:802b> dll/win32/urlmon/download.c:130 (DownloadBSC_OnProgress at 20)
<urlmon.dll:1e81> dll/win32/urlmon/bindctx.c:166
(BindStatusCallback_OnProgress at 20)
<urlmon.dll:60d4> dll/win32/urlmon/binding.c:1110 (on_progress_proc)
<urlmon.dll:360b> dll/win32/urlmon/binding.c:185 (notif_wnd_proc at 16)
<user32.dll:48d35> dll/win32/user32/windows/message.c:1173
(@IntCallWindowProcW at 24)
<user32.dll:49e12> dll/win32/user32/windows/message.c:1405 (DispatchMessageW at 4)
<urlmon.dll:52e4> dll/win32/urlmon/binding.c:1692 (start_binding)
<urlmon.dll:5be7> dll/win32/urlmon/binding.c:1709 (bind_to_storage)
<urlmon.dll:11b03> dll/win32/urlmon/umon.c:744
(URLMonikerImpl_BindToStorage at 20)
<urlmon.dll:7e2e> dll/win32/urlmon/download.c:363 (URLDownloadToFileW at 20)
<SHDOCVW.dll:5f78> dll/win32/shdocvw/shdocvw_main.c:349 (ThreadFunc at 4)
<kernel32.dll:2bc25>
<00000000>


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