diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index 7c83e01526ed..8865c1a42667 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -2874,6 +2874,9 @@ static int tpacket_snd(struct packet_sock *po, struct msghdr *msg)
 						    vnet_hdr.hdr_len);
 			has_vnet_hdr = true;
 		}
+		/* Prevent the byte count from wrapping into a negative errno */
+		if (unlikely(tp_len > INT_MAX - len_sum))
+			break;
 		copylen = max_t(int, copylen, hard_header_len);
 		skb = sock_alloc_send_skb(&po->sk,
 				hlen + tlen + sizeof(struct sockaddr_ll) +