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authorMarcel Ziswiler <marcel.ziswiler@toradex.com>2019-03-28 16:27:49 +0100
committerMarcel Ziswiler <marcel.ziswiler@toradex.com>2019-03-28 16:27:49 +0100
commitd899927728beca8357a5b4120b690cb3c1d80844 (patch)
treeccb170439cc8638d71f6120ae08a6faded46db98 /net/ipv6/sit.c
parent8d60367808c45e33c0a9127621f4e5fc34914f6b (diff)
parent0a8ab17689e628c84a666195bfc6ab85d11cf057 (diff)
Diffstat (limited to 'net/ipv6/sit.c')
-rw-r--r--net/ipv6/sit.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index fc7ca1e46908..c9c6a5e829ab 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -540,7 +540,8 @@ static int ipip6_err(struct sk_buff *skb, u32 info)
}
err = 0;
- if (!ip6_err_gen_icmpv6_unreach(skb, iph->ihl * 4, type, data_len))
+ if (__in6_dev_get(skb->dev) &&
+ !ip6_err_gen_icmpv6_unreach(skb, iph->ihl * 4, type, data_len))
goto out;
if (t->parms.iph.daddr == 0)
@@ -766,8 +767,9 @@ static bool check_6rd(struct ip_tunnel *tunnel, const struct in6_addr *v6dst,
pbw0 = tunnel->ip6rd.prefixlen >> 5;
pbi0 = tunnel->ip6rd.prefixlen & 0x1f;
- d = (ntohl(v6dst->s6_addr32[pbw0]) << pbi0) >>
- tunnel->ip6rd.relay_prefixlen;
+ d = tunnel->ip6rd.relay_prefixlen < 32 ?
+ (ntohl(v6dst->s6_addr32[pbw0]) << pbi0) >>
+ tunnel->ip6rd.relay_prefixlen : 0;
pbi1 = pbi0 - tunnel->ip6rd.relay_prefixlen;
if (pbi1 > 0)
@@ -1850,6 +1852,7 @@ static int __net_init sit_init_net(struct net *net)
err_reg_dev:
ipip6_dev_free(sitn->fb_tunnel_dev);
+ free_netdev(sitn->fb_tunnel_dev);
err_alloc_dev:
return err;
}