1.7.5: Occasional failure of CreatePipe or signal handing due to thread-unsafe code in cwdstuff::set

Corinna Vinschen corinna-cygwin@cygwin.com
Thu Aug 12 15:30:00 GMT 2010


On Aug 12 17:26, Corinna Vinschen wrote:
> On Aug 12 16:38, Corinna Vinschen wrote:
> > On Aug 12 10:12, Christopher Faylor wrote:
> > > On Thu, Aug 12, 2010 at 04:01:54PM +0200, Corinna Vinschen wrote:
> > No.  I never came across a directory which is not writable under
> > SE_BACKUP_NAME conditions.
> 
> Erm... 
> 
> ... come to think of it, regardless of SE_BACKUP_NAME, if the
> application uses CreateFile without the FILE_FLAG_BACKUP_SEMANTICS flag,
> which is not really typical for Win32 calls anyway, then the application
> will get an ERROR_ACCESS_DENIED when trying to create a file in such
> a directory.
> 
> Shouldn't that be sufficient?

No, it's not.  A non-admin user or a admin user in a non-elevated
shell won't be able to open the dir in the first place.

Sigh.


Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Project Co-Leader          cygwin AT cygwin DOT com
Red Hat



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