/*
* This is a global event; just wakeup the waiting thread.
* Once we successfully unload, we can cleanup the monitor state.
+ *
+ * NB. A malicious or compromised Hyper-V could send a spurious
+ * message of type CHANNELMSG_UNLOAD_RESPONSE, and trigger a call
+ * of the complete() below. Make sure that unload_event has been
+ * initialized by the time this complete() is executed.
*/
complete(&vmbus_connection.unload_event);
}
if (vmbus_proto_version < VERSION_WIN8_1)
return;
- init_completion(&vmbus_connection.unload_event);
+ reinit_completion(&vmbus_connection.unload_event);
memset(&hdr, 0, sizeof(struct vmbus_channel_message_header));
hdr.msgtype = CHANNELMSG_UNLOAD;
vmbus_post_msg(&hdr, sizeof(struct vmbus_channel_message_header),
struct vmbus_connection vmbus_connection = {
.conn_state = DISCONNECTED,
+ .unload_event = COMPLETION_INITIALIZER(
+ vmbus_connection.unload_event),
.next_gpadl_handle = ATOMIC_INIT(0xE1E10),
.ready_for_suspend_event = COMPLETION_INITIALIZER(