This kernel update provides an update to 3.12.9 and fixes the following critical security issue:
Pageexec reported a bug in the Linux kernel's recvmmsg syscall when called from code using the x32 ABI. An unprivileged local user could exploit this flaw to cause a denial of service (system crash) or gain administrator privileges (CVE-2014-0038)
It also fixes an issue where some laptops are forced to use vesa driver & No ACPI (mga#6077)
For other changes, see the referenced changelog.