CVE-2024-27066 virtio: packed: fix unmap leak for indirect desc table

In the Linux kernel, the following vulnerability has been resolved: virtio: packed: fix unmap leak for indirect desc table When usedmaapi and premapped are true, then the dounmap is false. Because the dounmap is false, vringunmapextrapacked is not called by detachbufpacked. if unlikelyvq-dounmap...