CM 10.1 isn't fully 4.2.2 yet. you should use 4.2.1 kernels or flash a specific file to get 4.2.2 kernels to work.
Here's the file for Maguro ONLY if you want it. Flash it before flashing the kernal.
http://jeremyp.fr/gnex/GNex-maguro-GPL-422.zip
All credit goes to j3r3myp