[Bug 32729] New: Morrowind crashes before loading a game

http://bugs.winehq.org/show_bug.cgi?id=32729

Bug #: 32729
           Summary: Morrowind crashes before loading a game
           Product: Wine
           Version: 1.5.21
          Platform: x86
        OS/Version: Linux
            Status: NEW
          Keywords: regression
          Severity: normal
          Priority: P2
         Component: quartz
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]
    Classification: Unclassified
   Regression SHA1: 7f767bb1957fc5ebdf0f145226d01f4fe3f7d80e

Created attachment 43188
  --> http://bugs.winehq.org/attachment.cgi?id=43188
+quartz,+strmbase,+tid,+seh

Regression introduced by 7f767bb1957fc5ebdf0f145226d01f4fe3f7d80e

wine: Unhandled page fault on read access to 0x00000000 at address 0x796c80d4
Unhandled exception: page fault on read access to 0x00000000 in 32-bit code
(0x796c80d4).
Register dump:
 CS:0023 SS:002b DS:002b ES:002b FS:0063 GS:006b
 EIP:796c80d4 ESP:0033f6c0 EBP:0033f6f8 EFLAGS:00210202(  R- --  I   - - - )
 EAX:00000000 EBX:796f7ff4 ECX:0033f6c0 EDX:053188a0
 ESI:053a4d40 EDI:80040209
Stack dump:
0x0033f6c0:  05304428 796ff720 796e511e 796d704c
0x0033f6d0:  053a4d40 796ff4c8 796debf4 796dbe88
0x0033f6e0:  0033f720 00000006 0033f710 796f7ff4
0x0033f6f0:  00000001 80040209 0033f758 796784dc
0x0033f700:  0007a120 05304420 79648bf9 796784dc
0x0033f710:  053a4d40 796ff4c8 796debf4 796dbe88
Backtrace:
=>0 0x796c80d4 BaseOutputPinImpl_Active+0x104(This=0x5304428)
[/home/austin/wine-git/dlls/strmbase/../../include/strmif.h:2932] in quartz
(0x0033f6f8)
  1 0x796784dc Parser_Run+0xfb(iface=0x5304428, tStart=0x796e511e796ff720)
[/home/austin/wine-git/dlls/quartz/parser.c:328] in quartz (0x0033f758)
  2 0x7965a256 SendRun+0x35(pFilter=0x5304428, data=0x796ff720)
[/home/austin/wine-git/dlls/quartz/../../include/strmif.h:1934] in quartz
(0x0033f798)
  3 0x7965d3f9 ExploreGraph+0xe8(pGraph=0x535e4c0, pOutputPin=<is not
available>, FoundFilter=0x7965a220, data=0x535e5d0)
[/home/austin/wine-git/dlls/quartz/filtergraph.c:1882] in quartz (0x0033f918)
  4 0x79663ea0 SendFilterMessage+0x1ef(This=0x535e4c0, FoundFilter=0x7965a220,
data=0x535e5d0) [/home/austin/wine-git/dlls/quartz/filtergraph.c:1972] in
quartz (0x0033f998)
  5 0x796642b9 MediaControl_Run+0xf8(iface=0x5304428)
[/home/austin/wine-git/dlls/quartz/filtergraph.c:2011] in quartz (0x0033f9f8)
  6 0x00403525 in morrowind (+0x3524) (0x0033fa48)
  7 0x00425426 in morrowind (+0x25425) (0x05396c98)
  8 0x00000000 (0x05393b58)
0x796c80d4 BaseOutputPinImpl_Active+0x104
[/home/austin/wine-git/dlls/strmbase/../../include/strmif.h:2932] in quartz:
movl     0x0(%eax),%edx
2932        return This->lpVtbl->Commit(This);

+quartz,+strmbase,+tid,+seh attached