CVE-2025-38074 vhost-scsi: protect vq->log_used with vq->mutex

In the Linux kernel, the following vulnerability has been resolved: vhost-scsi: protect vq-logused with vq-mutex The vhost-scsi completion path may access vq-logbase when vq-logused is already set to false. vhost-thread QEMU-thread vhostscsicompletecmdwork - vhostaddused - vhostaddusedn if...