covering the week's top textbooks like Linux bias canonical has published new Ubuntu Linux kernel security updates for all of its supported releases to patch several vulnerabilities discovered lately by various security researchers affecting Linux four point one five four point four and five point three kernels and several versions of Ubuntu Linux the new security patch fixes an issue found in the Intel Wi-Fi driver a race condition discovered in Linux kernels virtual terminal implementation a flaw discovered in the floppy driver and a race condition in the block IO tracing implementation all these issues could allow a local attacker to either crash the system or expose sensitive information the new kernel update also patches a stack buffer overflow discovered in the v host net driver this could allow a local attacker with the ability to perform ioctl calls on dev v host net to cause a denial of service crashing the system that's just to name a few of the critical security issues that have been patched canonical urges all users to update their installations and install the new kernel versions as soon as possible new kernel versions are also available for raspberry pi devices cloud environments om processors Snapdragon processors as well as Amazon Web Services Microsoft Azure cloud Oracle cloud Google cloud platform and Google container engine systems keep in mind when updating a production system that a system reboot is required for the security issues to be corrected so it's best to schedule a short downtime to perform this update