fib: refresh adj pointer after fib_walk_sync due to possible realloc

[vpp.git] / src / vnet / adj / adj_nbr.c

diff --git a/src/vnet/adj/adj_nbr.c b/src/vnet/adj/adj_nbr.c
index 7531326..7acdccc 100644 (file)
--- a/src/vnet/adj/adj_nbr.c
+++ b/src/vnet/adj/adj_nbr.c
@@ -452,6 +452,12 @@ adj_nbr_update_rewrite_internal (ip_adjacency_t *adj,
        };
 
        fib_walk_sync(FIB_NODE_TYPE_ADJ, walk_ai, &bw_ctx);
+       /*
+        * fib_walk_sync may allocate a new adjacency and potentially cuase a
+        * realloc for adj_pool. When that happens, adj pointer is no longer
+        * valid here. We refresh the adj pointer accordingly.
+        */
+       adj = adj_get (ai);
     }
 
     /*