ip: fix use-after-free in IPv6 SLAAC expiration

[vpp.git] / src / vnet / session / session_node.c

diff --git a/src/vnet/session/session_node.c b/src/vnet/session/session_node.c
index ad18637..e2e98eb 100644 (file)
--- a/src/vnet/session/session_node.c
+++ b/src/vnet/session/session_node.c
@@ -1122,6 +1122,7 @@ session_event_dispatch_ctrl (session_worker_t * wrk, session_evt_elt_t * elt)
   elt = pool_elt_at_index (wrk->event_elts, ei);
   if (!clib_llist_elt_is_linked (elt, evt_list))
     {
+      e = &elt->evt;
       if (e->event_type >= SESSION_CTRL_EVT_BOUND)
        session_evt_ctrl_data_free (wrk, elt);
       session_evt_elt_free (wrk, elt);
@@ -1339,6 +1340,7 @@ session_queue_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node,
 VLIB_REGISTER_NODE (session_queue_node) =
 {
   .function = session_queue_node_fn,
+  .flags = VLIB_NODE_FLAG_TRACE_SUPPORTED,
   .name = "session-queue",
   .format_trace = format_session_queue_trace,
   .type = VLIB_NODE_TYPE_INPUT,