Mailing the story:
Linux Kernel 3.12.52 Released, Install/Upgrade Now In Ubuntu/Linux Mint
Linux Kernel 3.12.52 was released yesterday with improvements and bug fixes. The kernel updates bring more security and stability. If your system has 3.12 series kernel and you can not wait for 3.12.52 officially available then you can upgrade to 3.12.52 in Ubuntu/Linux mint from here.