Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks. CVE-2018-15471 Felix Wilhelm of Google Project Zero discovered a flaw in the hash handling of the xen-netback Linux kernel module. A malicious or buggy frontend may cause the backend to make out of bounds memory accesses, potentially resulting in privilege escalation, denial of service, or information leaks. https://xenbits.xen.org/xsa/advisory-270.html CVE-2018-18021 It was discovered that the KVM subsystem on the arm64 platform does not properly handle the KVM_SET_ON_REG ioctl. An attacker who can create KVM based virtual machines can take advantage of this flaw for denial of service or privilege escalation .