From 0a80966b1043c3e2dc684140f155a3fded308660 Mon Sep 17 00:00:00 2001 From: Tom Herbert Date: Wed, 7 May 2014 16:52:39 -0700 Subject: net: Verify UDP checksum before handoff to encap Moving validation of UDP checksum to be done in UDP not encap layer. Signed-off-by: Tom Herbert Signed-off-by: David S. Miller --- net/ipv6/udp.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'net/ipv6/udp.c') diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index fc2be63e32d5..7edf096867c4 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -634,6 +634,10 @@ int udpv6_queue_rcv_skb(struct sock *sk, struct sk_buff *skb) if (skb->len > sizeof(struct udphdr) && encap_rcv != NULL) { int ret; + /* Verify checksum before giving to encap */ + if (udp_lib_checksum_complete(skb)) + goto csum_error; + ret = encap_rcv(sk, skb); if (ret <= 0) { UDP_INC_STATS_BH(sock_net(sk), -- cgit v1.2.3