[Bug 1021530] Re: [SRU] update to include stable fixes for OVS 1.4

[James Page]

Uploaded to -proposed for SRU team review.

** Description changed:

+ [IMPACT]
+ 
+  * ovs-vsswitchd crashes when processing IPv6 neighbor discovery packets
+ with VLAN headers received in a tunnel configured with key=flow or
+ in_key=flow.
+ 
+  * This bug affects us from pushing a change to to the OpenStack Quantum
+ project, which uses OVS on Ubuntu precise quite heavily.
+ 
+ [TESTCASE]
+ 
+  * Install the current openvswitch package from precise (1.4.0) on two
+ machines. Then, create tunnel ports between the two machines. Next
+ attach a VM to each of the ovs_bridges and add flow table entries which
+ cause traffic entering the bridge to be appended with a VLAN_ID and then
+ output a tunnel port. When IPv6 neighbor discovery packets from the vm
+ enter this port ovs-vswitchd will crash.
+ 
+ [Regression Potential]
+ 
+  * None
+ 
+ [Other Info]
+  * Patch: http://openvswitch.org/cgi-bin/gitweb.cgi?p=openvswitch;a=commitdiff_plain;h=11f84dce005dd14a374ab2ef5f8c25bcf8285a36;hp=776cf91b42f631b4929fffe8ddd2aa06b40ea24c
+  * Mailing list discussion: http://openvswitch.org/pipermail/dev/2012-May/017249.html
+  * Link to patch that exposes this issue in openstack Quantum: https://review.openstack.org/#/c/9416/
+ 
+ >> Original bug report <<
+ 
  Hello,
  
  I'm the lead of the OpenStack Quantum project, which uses OVS on Ubuntu
  precise quite heavily.
  
  We have a bug fix for an issue in Quantum that necessarily triggers a
  bug in OVS 1.4.0 that has been fixed in the stable 1.4.2 release.  We
  want to push our fix, but pushing it before precise has the
  corresponding OVS bugfix would cause many people to experience the OVS
  bug, which is actually worse than the bug we've fixed in Quantum.
  
  Can we get precise upgraded to OVS 1.4.2?
  
  If this isn't the right venue to request this, please point me to the
  right place.

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https://bugs.launchpad.net/bugs/1021530

Title:
  [SRU] update to include stable fixes for OVS 1.4

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