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authorDavid S. Miller <davem@davemloft.net>2019-03-27 17:37:58 -0700
committerDavid S. Miller <davem@davemloft.net>2019-03-27 17:37:58 -0700
commit356d71e00d278d865f8c7f68adebd6ce4698a7e2 (patch)
tree8cb2dabf7440b56c6dee76b4253210c6b603b98e /net/ipv6
parentdf453700e8d81b1bdafdf684365ee2b9431fb702 (diff)
parent1a9df9e29c2afecf6e3089442d429b377279ca3c (diff)
downloadlinux-356d71e00d278d865f8c7f68adebd6ce4698a7e2.tar.bz2
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'net/ipv6')
-rw-r--r--net/ipv6/netfilter/ip6t_srh.c6
-rw-r--r--net/ipv6/route.c18
-rw-r--r--net/ipv6/tcp_ipv6.c8
3 files changed, 20 insertions, 12 deletions
diff --git a/net/ipv6/netfilter/ip6t_srh.c b/net/ipv6/netfilter/ip6t_srh.c
index 1059894a6f4c..4cb83fb69844 100644
--- a/net/ipv6/netfilter/ip6t_srh.c
+++ b/net/ipv6/netfilter/ip6t_srh.c
@@ -210,6 +210,8 @@ static bool srh1_mt6(const struct sk_buff *skb, struct xt_action_param *par)
psidoff = srhoff + sizeof(struct ipv6_sr_hdr) +
((srh->segments_left + 1) * sizeof(struct in6_addr));
psid = skb_header_pointer(skb, psidoff, sizeof(_psid), &_psid);
+ if (!psid)
+ return false;
if (NF_SRH_INVF(srhinfo, IP6T_SRH_INV_PSID,
ipv6_masked_addr_cmp(psid, &srhinfo->psid_msk,
&srhinfo->psid_addr)))
@@ -223,6 +225,8 @@ static bool srh1_mt6(const struct sk_buff *skb, struct xt_action_param *par)
nsidoff = srhoff + sizeof(struct ipv6_sr_hdr) +
((srh->segments_left - 1) * sizeof(struct in6_addr));
nsid = skb_header_pointer(skb, nsidoff, sizeof(_nsid), &_nsid);
+ if (!nsid)
+ return false;
if (NF_SRH_INVF(srhinfo, IP6T_SRH_INV_NSID,
ipv6_masked_addr_cmp(nsid, &srhinfo->nsid_msk,
&srhinfo->nsid_addr)))
@@ -233,6 +237,8 @@ static bool srh1_mt6(const struct sk_buff *skb, struct xt_action_param *par)
if (srhinfo->mt_flags & IP6T_SRH_LSID) {
lsidoff = srhoff + sizeof(struct ipv6_sr_hdr);
lsid = skb_header_pointer(skb, lsidoff, sizeof(_lsid), &_lsid);
+ if (!lsid)
+ return false;
if (NF_SRH_INVF(srhinfo, IP6T_SRH_INV_LSID,
ipv6_masked_addr_cmp(lsid, &srhinfo->lsid_msk,
&srhinfo->lsid_addr)))
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index b804be3cbf05..61f231f58da5 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -1039,14 +1039,20 @@ static struct rt6_info *ip6_create_rt_rcu(struct fib6_info *rt)
struct rt6_info *nrt;
if (!fib6_info_hold_safe(rt))
- return NULL;
+ goto fallback;
nrt = ip6_dst_alloc(dev_net(dev), dev, flags);
- if (nrt)
- ip6_rt_copy_init(nrt, rt);
- else
+ if (!nrt) {
fib6_info_release(rt);
+ goto fallback;
+ }
+ ip6_rt_copy_init(nrt, rt);
+ return nrt;
+
+fallback:
+ nrt = dev_net(dev)->ipv6.ip6_null_entry;
+ dst_hold(&nrt->dst);
return nrt;
}
@@ -1095,10 +1101,6 @@ restart:
dst_hold(&rt->dst);
} else {
rt = ip6_create_rt_rcu(f6i);
- if (!rt) {
- rt = net->ipv6.ip6_null_entry;
- dst_hold(&rt->dst);
- }
}
rcu_read_unlock();
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 77d723bbe050..eec814fe53b8 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -1119,11 +1119,11 @@ static struct sock *tcp_v6_syn_recv_sock(const struct sock *sk, struct sk_buff *
newnp->ipv6_fl_list = NULL;
newnp->pktoptions = NULL;
newnp->opt = NULL;
- newnp->mcast_oif = tcp_v6_iif(skb);
- newnp->mcast_hops = ipv6_hdr(skb)->hop_limit;
- newnp->rcv_flowinfo = ip6_flowinfo(ipv6_hdr(skb));
+ newnp->mcast_oif = inet_iif(skb);
+ newnp->mcast_hops = ip_hdr(skb)->ttl;
+ newnp->rcv_flowinfo = 0;
if (np->repflow)
- newnp->flow_label = ip6_flowlabel(ipv6_hdr(skb));
+ newnp->flow_label = 0;
/*
* No need to charge this sock to the relevant IPv6 refcnt debug socks count