AM I SAFE

hi
i would like to know if i am on safe kernel

now i have android stock 4.0.4

N7000XXLRB

kernel 3.0.15-1163394
dpi@dell171 #3

IMM76DXXLRI

and i root my phone with this

PhilZ-cwm6-DDLRB-ODD-3.81-signed

am i on safe kernel?

can i download any rom in my extsd and instal with cwm

thank you