vcl: validate fs before cleanup

[vpp.git] / src / vcl / vcl_private.c

diff --git a/src/vcl/vcl_private.c b/src/vcl/vcl_private.c
index eb01d1c..ba54c91 100644 (file)
--- a/src/vcl/vcl_private.c
+++ b/src/vcl/vcl_private.c
@@ -459,8 +459,11 @@ vcl_session_detach_fifos (vcl_session_t *s)
   fifo_segment_free_client_fifo (fs, s->tx_fifo);
   if (s->ct_rx_fifo)
     {
-      fs = fifo_segment_get_segment (&vcm->segment_main,
-                                    s->ct_rx_fifo->segment_index);
+      fs = fifo_segment_get_segment_if_valid (&vcm->segment_main,
+                                             s->ct_rx_fifo->segment_index);
+      if (!fs)
+       goto done;
+
       fifo_segment_free_client_fifo (fs, s->ct_rx_fifo);
       fifo_segment_free_client_fifo (fs, s->ct_tx_fifo);
     }