diff --git a/include/monitor/monitor.h b/include/monitor/monitor.h
index c5c9ea292fca..a714d8ef80a5 100644
--- a/include/monitor/monitor.h
+++ b/include/monitor/monitor.h
@@ -17,6 +17,7 @@ extern Monitor *cur_mon;
 bool monitor_cur_is_qmp(void);
 
 void monitor_init(CharDriverState *chr, int flags);
+void monitor_cleanup(void);
 
 int monitor_suspend(Monitor *mon);
 void monitor_resume(Monitor *mon);
diff --git a/monitor.c b/monitor.c
index 5d68a5d6fce2..5c003731e288 100644
--- a/monitor.c
+++ b/monitor.c
@@ -635,6 +635,13 @@ static void monitor_data_init(Monitor *mon)
 
 static void monitor_data_destroy(Monitor *mon)
 {
+    if (mon->chr) {
+        qemu_chr_add_handlers(mon->chr, NULL, NULL, NULL, NULL);
+    }
+    if (monitor_is_qmp(mon)) {
+        json_message_parser_destroy(&mon->qmp.parser);
+    }
+    g_free(mon->rs);
     QDECREF(mon->outbuf);
     qemu_mutex_destroy(&mon->out_lock);
 }
@@ -4196,6 +4203,19 @@ void monitor_init(CharDriverState *chr, int flags)
     qemu_mutex_unlock(&monitor_lock);
 }
 
+void monitor_cleanup(void)
+{
+    Monitor *mon, *next;
+
+    qemu_mutex_lock(&monitor_lock);
+    QLIST_FOREACH_SAFE(mon, &mon_list, entry, next) {
+        QLIST_REMOVE(mon, entry);
+        monitor_data_destroy(mon);
+        g_free(mon);
+    }
+    qemu_mutex_unlock(&monitor_lock);
+}
+
 static void bdrv_password_cb(void *opaque, const char *password,
                              void *readline_opaque)
 {
diff --git a/vl.c b/vl.c
index e7c2c628de29..a14c438d3887 100644
--- a/vl.c
+++ b/vl.c
@@ -4612,6 +4612,7 @@ int main(int argc, char **argv, char **envp)
 
     /* vhost-user must be cleaned up before chardevs.  */
     net_cleanup();
+    monitor_cleanup();
     qemu_chr_cleanup();
 
     return 0;