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| author | David S. Miller <davem@davemloft.net> | 2017-04-20 17:35:33 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-04-20 17:35:33 +0300 |
| commit | 7b9f6da175f9387ebfc202f35e0d39514899ab19 (patch) | |
| tree | a884c05aaeff40d8f80831549cccc820dcdd0f4f /net/ipv6/ip6_input.c | |
| parent | 9868879f293c599ce13b584c5bd8800312970781 (diff) | |
| parent | 1debdc8f9ebd07daf140e417b3841596911e0066 (diff) | |
| download | linux-7b9f6da175f9387ebfc202f35e0d39514899ab19.tar.xz | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
A function in kernel/bpf/syscall.c which got a bug fix in 'net'
was moved to kernel/bpf/verifier.c in 'net-next'.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/ip6_input.c')
| -rw-r--r-- | net/ipv6/ip6_input.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/net/ipv6/ip6_input.c b/net/ipv6/ip6_input.c index b04539dd4629..9ee208a348f5 100644 --- a/net/ipv6/ip6_input.c +++ b/net/ipv6/ip6_input.c @@ -124,11 +124,14 @@ int ipv6_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt max_t(unsigned short, 1, skb_shinfo(skb)->gso_segs)); /* * RFC4291 2.5.3 + * The loopback address must not be used as the source address in IPv6 + * packets that are sent outside of a single node. [..] * A packet received on an interface with a destination address * of loopback must be dropped. */ - if (!(dev->flags & IFF_LOOPBACK) && - ipv6_addr_loopback(&hdr->daddr)) + if ((ipv6_addr_loopback(&hdr->saddr) || + ipv6_addr_loopback(&hdr->daddr)) && + !(dev->flags & IFF_LOOPBACK)) goto err; /* RFC4291 Errata ID: 3480 |