1 files changed, 2 insertions, 0 deletions

diff --git a/net/core/dev.c b/net/core/dev.c
index c0946cb2b354..e5942bf45a6d 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -3451,6 +3451,8 @@ static int napi_gro_complete(struct sk_buff *skb)
         struct list_head *head = &ptype_base[ntohs(type) & PTYPE_HASH_MASK];
         int err = -ENOENT;
 
+        BUILD_BUG_ON(sizeof(struct napi_gro_cb) > sizeof(skb->cb));
+
         if (NAPI_GRO_CB(skb)->count == 1) {
                 skb_shinfo(skb)->gso_size = 0;
                 goto out;