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Re: BLODA detection code in latest snapshot


On Tue, Feb 28, 2012 at 10:21:44AM +0100, Corinna Vinschen wrote:
>> On Feb 27 18:53, David Rothenberger wrote:
>> > On 2/27/2012 4:26 AM, Corinna Vinschen wrote:
>> > >   Of course this is not foolproof.  The only filtered system DLLs so
>> > >   far are kernel32.dll, ntdll.dll, mswsock.dll, amd ws2_32.dll.  If you
>> > >   playing around with this, and if you find that a core system DLL is
>> > >   reported (like, say, advapi32.dll), then please notify this list, too.
>> > 
>> > On one of my Windows XP 32 boxes, it is reporting
>> > 
>> > Potential BLODA detected!  Thread function called outside of Cygwin DLL:
>> >   C:\WINDOWS\system32\advapi32.dll
>> > 
>> > when I ssh to another host. The machine DOES have potential BLODA,
>> > though: Symantec Endpoint Protection. It's never caused me any problems.
>> 
>> Weird!  I can't reproduce this on my XP box so I have to assume
>> this is a result of SEPs influence.  Hmm.  That's a bit disappointing.
>> How on earth can SEP call a thread function in advapi32?  I don't
>> think any of them are documented...
>> 
I had the same with script+xinit (using snapshot 20120314 and the
new xorg-server 1.12, although i don't think this makes any difference):

% script
% xinit      <- this is an alias
...
Welcome to the XWin X Server
Vendor: The Cygwin/X Project
Release: 1.12.0.0
OS: Windows XP Service Pack 3 [Windows NT 5.1 build 2600] (Win32)
Package: version 1.12.0-1 built 2012-03-12

XWin was started with the following command line:

/usr/bin/XWin -emulate3buttons -unixkill :0

_XSERVTransSocketOpenCOTSServer: Unable to open socket for inet6
_XSERVTransOpen: transport open failed for inet6/po8371:0
_XSERVTransMakeAllCOTSServerListeners: failed to open listener for inet6


Potential BLODA detected!  Thread function called outside of Cygwin DLL:
  D:\WINDOWS\system32\ADVAPI32.DLL
(II) xorg.conf is not supported
(II) See http://x.cygwin.com/docs/faq/cygwin-x-faq.html for more information
LoadPreferences: /tmp/myh/.XWinrc not found
LoadPreferences: Loading /etc/X11/system.XWinrc

...

% exit
exit
Script done, file is typescript



Hope this helps,

Denis Excoffier.

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