A flaw was found in the Linux kernel. The existing KVM SEV API has a vulnerability that allows a non-root (host) user-level application to crash the host kernel by creating a confidential guest VM instance in AMD CPU that supports Secure Encrypted Virtualization (SEV).
A flaw was found in the Linux kernel. The existing KVM SEV API has a vulnerability that allows a non-root (host) user-level application to crash the host kernel by creating a confidential guest VM instance in AMD CPU that supports Secure Encrypted Virtualization (SEV).
This flaw does not affect the versions of the kernel packages as shipped with Red Hat Enterprise Linux 6 and 7, as they did not include support for SEV. Red Hat Enterprise Linux 8 currently provides SEV as a Technology Preview. Using SEV in a production environment is discouraged. For additional details please see https://access.redhat.com/articles/4491591 and https://access.redhat.com/support/offerings/techpreview.
Vulmon