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

[Aaron Rosen]

[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]
 
 * Link to patch that exposes this issue in openstack Quantum  https://review.openstack.org/#/c/9416/

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

Title:
  update to include stable fixes for OVS 1.4

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