vhost: fix dereferencing invalid pointer after realloc

[dpdk.git] / lib / librte_vhost / vhost_user.c

diff --git a/lib/librte_vhost/vhost_user.c b/lib/librte_vhost/vhost_user.c
index 3b934a7fa127b6b908b7ece862aff88b04facd0e..34086a764d0441fd5b36d3de30d1e68196e46026 100644 (file)
--- a/lib/librte_vhost/vhost_user.c
+++ b/lib/librte_vhost/vhost_user.c
@@ -1198,6 +1198,12 @@ vhost_user_msg_handler(int vid, int fd)
 
        }
 
+       /*
+        * The virtio_net struct might have been reallocated on a different
+        * NUMA node, so dev pointer might no more be valid.
+        */
+       dev = get_device(vid);
+
        if (msg.flags & VHOST_USER_NEED_REPLY) {
                msg.payload.u64 = !!ret;
                msg.size = sizeof(msg.payload.u64);