CVE-2014-2039

arch/s390/kernel/head64.S en el kernel de Linux anterior a 3.13.5 en la plataforma s390 no maneja debidamente intentos de uso de la pila de vinculación, lo que permite a usuarios locales causar una denegación de servicio (caída de sistema) mediante la ejecución de una instrucción manipulada.

The kernel packages contain the Linux kernel, the core of any Linux operating system. A flaw was found in the way the Linux kernel's futex subsystem handled the requeuing of certain Priority Inheritance futexes. A local, unprivileged user could use this flaw to escalate their privileges on the system. A flaw was found in the way the Linux kernel's floppy driver handled user space provided data in certain error code paths while processing FDRAWCMD IOCTL commands. A local user with write access to /dev/fdX could use this flaw to free (using the kfree() function) arbitrary kernel memory. Various other issues were also addressed.