LLS allows for the extension of existing OSPF packets to provide additional bit space. The additional bit space enables greater information per packet exchange between OSPF neighbors.

Symptom:

When enabling LLS on the router, OSPF adjacency with the ASA stuck in INIT state.

Router(config)#int g0/0/1

Router(config-if)#ip OSPF lls  (command to enable LLS)

On the Peer device, we get below Error  (neighbor detached)

%OSPF-5-ADJCHG: Process 100, Nbr x.x.x.x on GigabitEthernet0/0/1 from FULL to DOWN, Neighbor Down: Interface down or detached.

Router(config)#logg
OSPF-100 ADJ   Gi0/0/1: Cannot see ourself in hello from x.x.x.x, state INIT

Router# sh ip ospf neighbor
Neighbor ID     Pri   State           Dead Time   Address         Interface
x.x.x.x    1   INIT/DROTHER    00:00:16    y.y.y.y   GigabitEthernet0/0/1  <----- Stuck in INIT 

On ASA, the following log is generated:
ASA5525(config)# %ASA-4-409003: Received invalid packet: Bad LLS TLV length from Y.Y.Y.Y

Soultion: 
A temporary solution is to disable the LLS on the router or switch connected to ASA. 
Interface gigabitEthernet 0/0/1
Ip ospf lls disable   (Disable LLS)