CVE-2014-1438 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-1438): The restore_fpu_checking function in arch/x86/include/asm/fpu-internal.h in the Linux kernel before 3.12.8 on the AMD K7 and K8 platforms does not clear pending exceptions before proceeding to an EMMS instruction, which allows local users to cause a denial of service (task kill) or possibly gain privileges via a crafted application.
Fix in 3.13, https://github.com/torvalds/linux/commit/26bef1318adc1b3a530ecc807ef99346db2aa8b0