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-rw-r--r--net/ipv6/addrconf.c11
-rw-r--r--net/ipv6/datagram.c10
-rw-r--r--net/ipv6/exthdrs.c1
-rw-r--r--net/ipv6/ip6_input.c7
-rw-r--r--net/ipv6/ip6mr.c13
-rw-r--r--net/ipv6/netfilter/nft_masq_ipv6.c8
-rw-r--r--net/ipv6/netfilter/nft_redir_ipv6.c8
-rw-r--r--net/ipv6/route.c6
-rw-r--r--net/ipv6/seg6.c3
-rw-r--r--net/ipv6/udp.c2
10 files changed, 37 insertions, 32 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 363172527e43..80ce478c4851 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -3626,14 +3626,19 @@ restart:
INIT_LIST_HEAD(&del_list);
list_for_each_entry_safe(ifa, tmp, &idev->addr_list, if_list) {
struct rt6_info *rt = NULL;
+ bool keep;
addrconf_del_dad_work(ifa);
+ keep = keep_addr && (ifa->flags & IFA_F_PERMANENT) &&
+ !addr_is_local(&ifa->addr);
+ if (!keep)
+ list_move(&ifa->if_list, &del_list);
+
write_unlock_bh(&idev->lock);
spin_lock_bh(&ifa->lock);
- if (keep_addr && (ifa->flags & IFA_F_PERMANENT) &&
- !addr_is_local(&ifa->addr)) {
+ if (keep) {
/* set state to skip the notifier below */
state = INET6_IFADDR_STATE_DEAD;
ifa->state = 0;
@@ -3645,8 +3650,6 @@ restart:
} else {
state = ifa->state;
ifa->state = INET6_IFADDR_STATE_DEAD;
-
- list_move(&ifa->if_list, &del_list);
}
spin_unlock_bh(&ifa->lock);
diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c
index eec27f87efac..e011122ebd43 100644
--- a/net/ipv6/datagram.c
+++ b/net/ipv6/datagram.c
@@ -405,9 +405,6 @@ static inline bool ipv6_datagram_support_addr(struct sock_exterr_skb *serr)
* At one point, excluding local errors was a quick test to identify icmp/icmp6
* errors. This is no longer true, but the test remained, so the v6 stack,
* unlike v4, also honors cmsg requests on all wifi and timestamp errors.
- *
- * Timestamp code paths do not initialize the fields expected by cmsg:
- * the PKTINFO fields in skb->cb[]. Fill those in here.
*/
static bool ip6_datagram_support_cmsg(struct sk_buff *skb,
struct sock_exterr_skb *serr)
@@ -419,14 +416,9 @@ static bool ip6_datagram_support_cmsg(struct sk_buff *skb,
if (serr->ee.ee_origin == SO_EE_ORIGIN_LOCAL)
return false;
- if (!skb->dev)
+ if (!IP6CB(skb)->iif)
return false;
- if (skb->protocol == htons(ETH_P_IPV6))
- IP6CB(skb)->iif = skb->dev->ifindex;
- else
- PKTINFO_SKB_CB(skb)->ipi_ifindex = skb->dev->ifindex;
-
return true;
}
diff --git a/net/ipv6/exthdrs.c b/net/ipv6/exthdrs.c
index 275cac628a95..25192a3b0cd7 100644
--- a/net/ipv6/exthdrs.c
+++ b/net/ipv6/exthdrs.c
@@ -388,7 +388,6 @@ looped_back:
icmpv6_param_prob(skb, ICMPV6_HDR_FIELD,
((&hdr->segments_left) -
skb_network_header(skb)));
- kfree_skb(skb);
return -1;
}
diff --git a/net/ipv6/ip6_input.c b/net/ipv6/ip6_input.c
index aacfb4bce153..c45b12b4431c 100644
--- a/net/ipv6/ip6_input.c
+++ b/net/ipv6/ip6_input.c
@@ -122,11 +122,14 @@ 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
diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c
index 6ba6c900ebcf..bf34d0950752 100644
--- a/net/ipv6/ip6mr.c
+++ b/net/ipv6/ip6mr.c
@@ -774,7 +774,8 @@ failure:
* Delete a VIF entry
*/
-static int mif6_delete(struct mr6_table *mrt, int vifi, struct list_head *head)
+static int mif6_delete(struct mr6_table *mrt, int vifi, int notify,
+ struct list_head *head)
{
struct mif_device *v;
struct net_device *dev;
@@ -820,7 +821,7 @@ static int mif6_delete(struct mr6_table *mrt, int vifi, struct list_head *head)
dev->ifindex, &in6_dev->cnf);
}
- if (v->flags & MIFF_REGISTER)
+ if ((v->flags & MIFF_REGISTER) && !notify)
unregister_netdevice_queue(dev, head);
dev_put(dev);
@@ -1331,7 +1332,6 @@ static int ip6mr_device_event(struct notifier_block *this,
struct mr6_table *mrt;
struct mif_device *v;
int ct;
- LIST_HEAD(list);
if (event != NETDEV_UNREGISTER)
return NOTIFY_DONE;
@@ -1340,10 +1340,9 @@ static int ip6mr_device_event(struct notifier_block *this,
v = &mrt->vif6_table[0];
for (ct = 0; ct < mrt->maxvif; ct++, v++) {
if (v->dev == dev)
- mif6_delete(mrt, ct, &list);
+ mif6_delete(mrt, ct, 1, NULL);
}
}
- unregister_netdevice_many(&list);
return NOTIFY_DONE;
}
@@ -1552,7 +1551,7 @@ static void mroute_clean_tables(struct mr6_table *mrt, bool all)
for (i = 0; i < mrt->maxvif; i++) {
if (!all && (mrt->vif6_table[i].flags & VIFF_STATIC))
continue;
- mif6_delete(mrt, i, &list);
+ mif6_delete(mrt, i, 0, &list);
}
unregister_netdevice_many(&list);
@@ -1707,7 +1706,7 @@ int ip6_mroute_setsockopt(struct sock *sk, int optname, char __user *optval, uns
if (copy_from_user(&mifi, optval, sizeof(mifi_t)))
return -EFAULT;
rtnl_lock();
- ret = mif6_delete(mrt, mifi, NULL);
+ ret = mif6_delete(mrt, mifi, 0, NULL);
rtnl_unlock();
return ret;
diff --git a/net/ipv6/netfilter/nft_masq_ipv6.c b/net/ipv6/netfilter/nft_masq_ipv6.c
index 6c5b5b1830a7..4146536e9c15 100644
--- a/net/ipv6/netfilter/nft_masq_ipv6.c
+++ b/net/ipv6/netfilter/nft_masq_ipv6.c
@@ -27,10 +27,10 @@ static void nft_masq_ipv6_eval(const struct nft_expr *expr,
memset(&range, 0, sizeof(range));
range.flags = priv->flags;
if (priv->sreg_proto_min) {
- range.min_proto.all =
- *(__be16 *)&regs->data[priv->sreg_proto_min];
- range.max_proto.all =
- *(__be16 *)&regs->data[priv->sreg_proto_max];
+ range.min_proto.all = (__force __be16)nft_reg_load16(
+ &regs->data[priv->sreg_proto_min]);
+ range.max_proto.all = (__force __be16)nft_reg_load16(
+ &regs->data[priv->sreg_proto_max]);
}
regs->verdict.code = nf_nat_masquerade_ipv6(pkt->skb, &range,
nft_out(pkt));
diff --git a/net/ipv6/netfilter/nft_redir_ipv6.c b/net/ipv6/netfilter/nft_redir_ipv6.c
index f5ac080fc084..a27e424f690d 100644
--- a/net/ipv6/netfilter/nft_redir_ipv6.c
+++ b/net/ipv6/netfilter/nft_redir_ipv6.c
@@ -26,10 +26,10 @@ static void nft_redir_ipv6_eval(const struct nft_expr *expr,
memset(&range, 0, sizeof(range));
if (priv->sreg_proto_min) {
- range.min_proto.all =
- *(__be16 *)&regs->data[priv->sreg_proto_min],
- range.max_proto.all =
- *(__be16 *)&regs->data[priv->sreg_proto_max],
+ range.min_proto.all = (__force __be16)nft_reg_load16(
+ &regs->data[priv->sreg_proto_min]);
+ range.max_proto.all = (__force __be16)nft_reg_load16(
+ &regs->data[priv->sreg_proto_max]);
range.flags |= NF_NAT_RANGE_PROTO_SPECIFIED;
}
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 35c58b669ebd..fb174b590fd3 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -1854,6 +1854,10 @@ static struct rt6_info *ip6_route_info_create(struct fib6_config *cfg)
int addr_type;
int err = -EINVAL;
+ /* RTF_PCPU is an internal flag; can not be set by userspace */
+ if (cfg->fc_flags & RTF_PCPU)
+ goto out;
+
if (cfg->fc_dst_len > 128 || cfg->fc_src_len > 128)
goto out;
#ifndef CONFIG_IPV6_SUBTREES
@@ -3423,6 +3427,8 @@ static int rt6_fill_node(struct net *net,
}
else if (rt->rt6i_flags & RTF_LOCAL)
rtm->rtm_type = RTN_LOCAL;
+ else if (rt->rt6i_flags & RTF_ANYCAST)
+ rtm->rtm_type = RTN_ANYCAST;
else if (rt->dst.dev && (rt->dst.dev->flags & IFF_LOOPBACK))
rtm->rtm_type = RTN_LOCAL;
else
diff --git a/net/ipv6/seg6.c b/net/ipv6/seg6.c
index a855eb325b03..5f44ffed2576 100644
--- a/net/ipv6/seg6.c
+++ b/net/ipv6/seg6.c
@@ -53,6 +53,9 @@ bool seg6_validate_srh(struct ipv6_sr_hdr *srh, int len)
struct sr6_tlv *tlv;
unsigned int tlv_len;
+ if (trailing < sizeof(*tlv))
+ return false;
+
tlv = (struct sr6_tlv *)((unsigned char *)srh + tlv_offset);
tlv_len = sizeof(*tlv) + tlv->len;
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 4e4c401e3bc6..e28082f0a307 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -1035,6 +1035,7 @@ int udpv6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
ipc6.hlimit = -1;
ipc6.tclass = -1;
ipc6.dontfrag = -1;
+ sockc.tsflags = sk->sk_tsflags;
/* destination address check */
if (sin6) {
@@ -1159,7 +1160,6 @@ do_udp_sendmsg:
fl6.flowi6_mark = sk->sk_mark;
fl6.flowi6_uid = sk->sk_uid;
- sockc.tsflags = sk->sk_tsflags;
if (msg->msg_controllen) {
opt = &opt_space;
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