[SRU][Xenial][Zesty][Artful][PATCH 0/1] SMB3: Validate negotiate request must always be signed

[Joseph Salisbury]

BugLink: http://bugs.launchpad.net/bugs/1729337

== SRU Justification ==
The bug reporter stated they have a cluster of servers that applied Xenial updates 
and then were unable to mount CIFS shares after upgrading to 4.4.0-98. The 
same machines on 4.4.0-97 do not hit the regression.  It was found that the
regression is fixed by mainline commit:
4587eee04e2a ("SMB3: Validate negotiate request must always be signed").

This fix is required in all Ubuntu supported releases.  Commit 4587eee04e2a
landed in mailine as of 4.14-rc7.  It  was also cc'd to upstream stable, 
but it has not landed in any stable releases yet, which is the reason for 
this SRU.  

Commit 4587eee04e2a is also required in Trusty, but Trusty needs a minor backort,
so it's SRU will be sent seperate. 

    
== Fix ==
commit 4587eee04e2ac7ac3ac9fa2bc164fb6e548f99cd
Author: Steve French <smfrench at gmail.com>
Date:   Wed Oct 25 15:58:31 2017 -0500
    SMB3: Validate negotiate request must always be signed

== Regression Potential ==
This patch is to fix a regression.  It was also cc'd to upstream stable, so 
it received addition review upstream.

== Test Case ==
A test kernel was built with this patch and tested by the original bug reporter.
The bug reporter states the test kernel resolved the bug.

Steve French (1):
  SMB3: Validate negotiate request must always be signed

 fs/cifs/smb2pdu.c | 3 +++
 1 file changed, 3 insertions(+)

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2.7.4