diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index d5a67d7eed3b..6268f709dea9 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -2484,8 +2484,11 @@ static int build_aevent(struct sk_buff *skb, struct xfrm_state *x, const struct
 	err = xfrm_if_id_put(skb, x->if_id);
 	if (err)
 		goto out_cancel;
-	if (x->pcpu_num != UINT_MAX)
+	if (x->pcpu_num != UINT_MAX) {
 		err = nla_put_u32(skb, XFRMA_SA_PCPU, x->pcpu_num);
+		if (err)
+			goto out_cancel;
+	}
 
 	nlmsg_end(skb, nlh);
 	return 0;