diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/sfc/ptp.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/ethernet/sfc/ptp.c b/drivers/net/ethernet/sfc/ptp.c index 03acf57df045..93a61a157d10 100644 --- a/drivers/net/ethernet/sfc/ptp.c +++ b/drivers/net/ethernet/sfc/ptp.c @@ -989,7 +989,11 @@ bool efx_ptp_is_ptp_tx(struct efx_nic *efx, struct sk_buff *skb) skb->len >= PTP_MIN_LENGTH && skb->len <= MC_CMD_PTP_IN_TRANSMIT_PACKET_MAXNUM && likely(skb->protocol == htons(ETH_P_IP)) && + skb_transport_header_was_set(skb) && + skb_network_header_len(skb) >= sizeof(struct iphdr) && ip_hdr(skb)->protocol == IPPROTO_UDP && + skb_headlen(skb) >= + skb_transport_offset(skb) + sizeof(struct udphdr) && udp_hdr(skb)->dest == htons(PTP_EVENT_PORT); } |