CVE-2012-1097

El funcionalidad regset (también conocido como conjunto de registros) en el kernel de Linux antes de v3.2.10 no controla correctamente la ausencia de métodos ."set" y ".get", lo que permite a usuarios locales causar una denegación de servicio (desreferencia de puntero nulo) o, posiblemente, tener un impacto no especificado a través de (1) un PTRACE_GETREGSET o (2) una llamada ptrace PTRACE_SETREGSET.

The kernel packages contain the Linux kernel, the core of any Linux operating system. A local, unprivileged user could use an integer overflow flaw in drm_mode_dirtyfb_ioctl() to cause a denial of service or escalate their privileges. It was found that the kvm_vm_ioctl_assign_device() function in the KVM subsystem of a Linux kernel did not check if the user requesting device assignment was privileged or not. A local, unprivileged user on the host could assign unused PCI devices, or even devices that were in use and whose resources were not properly claimed by the respective drivers, which could result in the host crashing.