Packages linux - Linux kernel linux-aws - Linux kernel for Amazon Web Services (AWS) systems linux-kvm - Linux kernel for cloud environments linux-lts-xenial - Linux hardware enablement kernel from Xenial for Trusty Details Jean-Claude Graf, Sandro Rüegge, Ali Hajiabadi, and Kaveh Razavi discovered that the Linux kernel contained insufficient branch predictor isolation between a guest and a userspace hypervisor for certain processors. This flaw is known as VMSCAPE. An attacker in a guest VM could possibly use this to expose sensitive information from the host OS. (CVE-2025-40300) Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: DMA engine subsystem; GPU…