D31156.1794714304.diff
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	diff --git a/sys/amd64/vmm/vmm_dev.c b/sys/amd64/vmm/vmm_dev.c
	--- a/sys/amd64/vmm/vmm_dev.c
	+++ b/sys/amd64/vmm/vmm_dev.c
	@@ -1015,6 +1015,11 @@
	error = EINVAL;
	goto out;
	}
	+ if (cr_cansee(curthread->td_ucred, sc->cdev->si_cred)) {
	+ mtx_unlock(&vmmdev_mtx);
	+ error = EINVAL;
	+ goto out;
	+ }

	/*
	* The 'cdev' will be destroyed asynchronously when 'si_threadcount'
	@@ -1117,8 +1122,8 @@
	goto out;
	}

	- error = make_dev_p(MAKEDEV_CHECKNAME, &cdev, &vmmdevsw, NULL,
	- UID_ROOT, GID_WHEEL, 0600, "vmm/%s", buf);
	+ error = make_dev_p(MAKEDEV_CHECKNAME, &cdev, &vmmdevsw,
	+ curthread->td_ucred, UID_ROOT, GID_WHEEL, 0600, "vmm/%s", buf);
	if (error != 0) {
	vmmdev_destroy(sc);
	goto out;