[cifs-protocol] SMB2_CREATE pathname "x\..\y.txt" -> STATUS_INVALID_PARAMETER? [120061624003369]

Jeff McCashland jeffm at microsoft.com
Tue Jun 16 17:31:10 UTC 2020

[Obaid to BCC]

Hi Volker,

I will look into the question and I'll let you know what I discover. 

Best regards,
Jeff McCashland | Senior Escalation Engineer | Microsoft Protocol Open Specifications Team 
Phone: +1 (425) 703-8300 x38300 | Hours: 9am-5pm | Time zone: (UTC-08:00) Pacific Time (US and Canada)
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We value your feedback.  My manager is Jeremy Chapman (jeremyc), +1 (469) 775-2475

-----Original Message-----
From: Obaid Farooqi <obaidf at microsoft.com> 
Sent: Tuesday, June 16, 2020 9:24 AM
To: Volker.Lendecke at SerNet.DE
Cc: cifs-protocol at lists.samba.org
Subject: RE: SMB2_CREATE pathname "x\..\y.txt" -> STATUS_INVALID_PARAMETER? [120061624003369]

Hi Volker:
Thanks for contacting Microsoft. I have created a case to track this issue. A member of the open specifications team will be in touch soon.

Obaid Farooqi
Escalatiion Engineer | Microsoft

-----Original Message-----
From: Volker Lendecke <Volker.Lendecke at SerNet.DE>
Sent: Tuesday, June 16, 2020 10:03 AM
To: Interoperability Documentation Help <dochelp at microsoft.com>
Cc: cifs-protocol at lists.samba.org
Subject: [EXTERNAL] SMB2_CREATE pathname "x\..\y.txt" -> STATUS_INVALID_PARAMETER?

Hi, Dochelp!

Attached find a trace that I could not explain according to [MS-SMB2] or [MS-FSCC]. I open a file "y.txt" that does exist, see frame 33. I create a directory "x", see frames 42/43. I then try to open "x\..\y.txt" and get a STATUS_INVALID_PARAMETER in frame 55. I could not find ".." to be illegal as part of a path in the docs.

Can you point me in the right direction?

The server is Windows 2012R2 in case that matters.



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