Microsoft Security Response Center 中文 关注 CVE-2026-53345 KVM：当虚拟机处于死亡状态时，若内存被污染且无 vCPU 运行，则不发出警告” CVE-2026-53345 KVM: Don't WARN if memory is dirtied without a vCPU when the VM is dying msrc.microsoft.com
