[Samba] Re: major cifs bug in 2.6.19+?

Jason Haar Jason.Haar at trimble.co.nz
Mon Apr 30 18:42:30 GMT 2007

Josh Kelley wrote:
> When DFS is enabled, the SMB protocol requires that the client send
> the full path to the network share (including server), rather than
> just the directory (e.g., \\server\share\parent\subdir1 instead of
> just parent\subdir1).  This lets the DFS server know what DFS root was
> originally requested.  The CIFS client fails to do that; it instead
> just sends parent\subdir1, which causes parent to be interpreted as a
> server name and subdir1 as a share name.  This is why searching for
> parent\subdir1\parent\subdir1 works; the initial "parent\subdir1" is
> parsed out as the server and share, then parent\subdir1 is correctly
> processed as the path. 
That's a great explanation - makes a lot of sense now!

However, this problem doesn't affect us under 2.6.18 - only the newer
kernels. Maybe something was broken in the cifs kernel module in newer

> I reported this as a bug a while ago, but it apparently hasn't been
> fixed yet.  See https://bugzilla.samba.org/show_bug.cgi?id=4066.

Thanks for that - I'll add a "me too"


Jason Haar
Information Security Manager, Trimble Navigation Ltd.
Phone: +64 3 9635 377 Fax: +64 3 9635 417
PGP Fingerprint: 7A2E 0407 C9A6 CAF6 2B9F 8422 C063 5EBB FE1D 66D1

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