diff --git a/drivers/net/mctp/mctp-i3c.c b/drivers/net/mctp/mctp-i3c.c index d247fe483c588594c0dc92aa8e9c3c798d910d6b..c1e72253063b54a9c2ff9e45e6202347b8c962a7 100644 --- a/drivers/net/mctp/mctp-i3c.c +++ b/drivers/net/mctp/mctp-i3c.c @@ -507,6 +507,9 @@ static int mctp_i3c_header_create(struct sk_buff *skb, struct net_device *dev, { struct mctp_i3c_internal_hdr *ihdr; + if (!daddr || !saddr) + return -EINVAL; + skb_push(skb, sizeof(struct mctp_i3c_internal_hdr)); skb_reset_mac_header(skb); ihdr = (void *)skb_mac_header(skb);