Denial of Service and Privilege Escalation Vulnerability in Linux Kernel on AMD K7 and K8 Platforms

Denial of Service and Privilege Escalation Vulnerability in Linux Kernel on AMD K7 and K8 Platforms

CVE-2014-1438 · MEDIUM Severity

AV:L/AC:M/AU:N/C:N/I:N/A:C

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.

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