CyberRota Analysis
AI-GeneratedThe vulnerability affects the Linux kernel's KVM component, specifically concerning the intra-host migration and mirroring of SEV-SNP virtual machines (VMs). Without proper implementation of state transfer for SNP-specific elements, such as guest request buffers, there is a risk of misconfiguration that could lead to security issues during VM migration. Organizations utilizing SEV-SNP VMs should prioritize addressing this vulnerability to ensure secure VM operations and prevent potential exploitation during migration processes.
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Do not allow intra-host migration/mirroring of SNP VMs The intra-host migration/mirroring feature is not fully implemented for SEV-SNP VMs. The proper migration requires additional SNP-specific state such as guest_req_mutex, guest_req_buf, and guest_resp_buf to be transferred or initialized on the destination. The SNP VM mirroring requires vmsa features to be copied as well otherwise ASID would be bound to SNP range while VM is detected as a SEV VM. Reject SNP source VMs in migration/mirroring until proper SNP state transfer is implemented. [sean: let lines poke past 80 chars, tag for stable]