Messages in this thread | | | Date | Fri, 27 Jul 2012 07:33:39 +1000 | From | Chris Jones <> | Subject | Re: [BUG] NTFS code doesn't sanitize folder names sufficiently |
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Marian Beermann wrote: > Hello everyone, > > today I noticed some very odd behaviour, which could lead people to > believe a loss of data, because it is possible to create directories > with backslashes in them. > > I am currently running kernel 3.5. > > To completly reproduce the problem to the full extend you'll need a > Windows computer, but to see whats wrong Linux completly suffices :-) > > On a Linux computer > 1. Create a directory named TestA on an NTFS partition > 2. Create a subdirectory of TestA named TestB > 3. Create a third directory alongside TestA named TestA\TestB (the > fundamental problem is this: backslashes in directory names) > > Connect the drive containing the NTFS partition now to a Windows > computer and navigate to the directory containing TestA and > TestA\TestB. If you navigate to the folder (not path!) TestA\TestB > you'll actually see the contents of the path TestA\TestB (the > subfolder TestB) and not the contents of the directory. > It is not possible on a Windows machine to access the contents of the > directory named TestA\TestB. This is not a bug in Windows, it's caused > by a bug in the NTFS driver, which allows illegal characters. > > The solution to this would be to disallow creation of files and > folders on NTFS drives containing illegal characters. > > Best regards > Marian Beermann
Yeah that's a tough one. I wouldn't exactly call it a bug. There's probably lots of stuff like this you could do that the command line would allow you to perform but not be a correct and intended function. I would put this down to user error rather than a bug. Anyone with knowledge of operating systems and file system structuring should know that / or \ are illegal characters for creating a directories. Whether it be on Windows or Linux.
Regards
-- Chris Jones @ kernel.devproject@gmail.com also on oracle.kerneldev@gmail.com and netbsd.kerneldev@gmail.com
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