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D31156.id92118.diff
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D31156.id92118.diff

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;

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