ipv6: raw: check sk->sk_rcvbuf earlier

[linux-2.6-microblaze.git] / net / ipv6 / raw.c

diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index 7792740..ca49e66 100644 (file)
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -160,6 +160,13 @@ static bool ipv6_raw_deliver(struct sk_buff *skb, int nexthdr)
                if (!raw_v6_match(net, sk, nexthdr, daddr, saddr,
                                  inet6_iif(skb), inet6_sdif(skb)))
                        continue;
+
+               if (atomic_read(&sk->sk_rmem_alloc) >=
+                   READ_ONCE(sk->sk_rcvbuf)) {
+                       atomic_inc(&sk->sk_drops);
+                       continue;
+               }
+
                delivered = true;
                switch (nexthdr) {
                case IPPROTO_ICMPV6: