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-rw-r--r--net/8021q/vlan.c6
-rw-r--r--net/core/dev.c6
-rw-r--r--net/core/skbuff.c1
-rw-r--r--net/dccp/ipv4.c13
-rw-r--r--net/dsa/Kconfig5
-rw-r--r--net/ipv4/ah4.c3
-rw-r--r--net/ipv4/cipso_ipv4.c24
-rw-r--r--net/ipv4/inet_connection_sock.c9
-rw-r--r--net/ipv4/ipip.c58
-rw-r--r--net/ipv4/syncookies.c2
-rw-r--r--net/ipv4/tcp_input.c2
-rw-r--r--net/ipv4/tcp_ipv4.c21
-rw-r--r--net/ipv4/tcp_output.c12
-rw-r--r--net/ipv6/ip6_flowlabel.c1
-rw-r--r--net/ipv6/ip6_gre.c11
-rw-r--r--net/ipv6/ip6_output.c4
-rw-r--r--net/l2tp/l2tp_ppp.c3
-rw-r--r--net/mac80211/key.c53
-rw-r--r--net/netfilter/nft_meta.c28
-rw-r--r--net/netlink/af_netlink.c17
-rw-r--r--net/netlink/af_netlink.h1
-rw-r--r--net/packet/af_packet.c24
-rw-r--r--net/sctp/input.c2
-rw-r--r--net/sctp/ipv6.c2
-rw-r--r--net/sctp/socket.c40
-rw-r--r--net/tipc/link.c28
-rw-r--r--net/tipc/link.h1
-rw-r--r--net/unix/diag.c2
28 files changed, 261 insertions, 118 deletions
diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
index 5e4199d5a388..01abb6431fd9 100644
--- a/net/8021q/vlan.c
+++ b/net/8021q/vlan.c
@@ -376,6 +376,9 @@ static int vlan_device_event(struct notifier_block *unused, unsigned long event,
dev->name);
vlan_vid_add(dev, htons(ETH_P_8021Q), 0);
}
+ if (event == NETDEV_DOWN &&
+ (dev->features & NETIF_F_HW_VLAN_CTAG_FILTER))
+ vlan_vid_del(dev, htons(ETH_P_8021Q), 0);
vlan_info = rtnl_dereference(dev->vlan_info);
if (!vlan_info)
@@ -423,9 +426,6 @@ static int vlan_device_event(struct notifier_block *unused, unsigned long event,
struct net_device *tmp;
LIST_HEAD(close_list);
- if (dev->features & NETIF_F_HW_VLAN_CTAG_FILTER)
- vlan_vid_del(dev, htons(ETH_P_8021Q), 0);
-
/* Put all VLANs for this dev in the down state too. */
vlan_group_for_each_dev(grp, i, vlandev) {
flgs = vlandev->flags;
diff --git a/net/core/dev.c b/net/core/dev.c
index b31a24b0acd4..968767dc13cb 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1113,9 +1113,8 @@ static int dev_alloc_name_ns(struct net *net,
return ret;
}
-static int dev_get_valid_name(struct net *net,
- struct net_device *dev,
- const char *name)
+int dev_get_valid_name(struct net *net, struct net_device *dev,
+ const char *name)
{
BUG_ON(!net);
@@ -1131,6 +1130,7 @@ static int dev_get_valid_name(struct net *net,
return 0;
}
+EXPORT_SYMBOL(dev_get_valid_name);
/**
* dev_change_name - change name of a device
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 62f62810cddd..fcc596a7ced3 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -4241,6 +4241,7 @@ void skb_scrub_packet(struct sk_buff *skb, bool xnet)
if (!xnet)
return;
+ ipvs_reset(skb);
skb_orphan(skb);
skb->mark = 0;
}
diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c
index e217f17997a4..6eb2bbf9873b 100644
--- a/net/dccp/ipv4.c
+++ b/net/dccp/ipv4.c
@@ -414,8 +414,7 @@ struct sock *dccp_v4_request_recv_sock(const struct sock *sk,
sk_daddr_set(newsk, ireq->ir_rmt_addr);
sk_rcv_saddr_set(newsk, ireq->ir_loc_addr);
newinet->inet_saddr = ireq->ir_loc_addr;
- newinet->inet_opt = ireq->opt;
- ireq->opt = NULL;
+ RCU_INIT_POINTER(newinet->inet_opt, rcu_dereference(ireq->ireq_opt));
newinet->mc_index = inet_iif(skb);
newinet->mc_ttl = ip_hdr(skb)->ttl;
newinet->inet_id = jiffies;
@@ -430,7 +429,10 @@ struct sock *dccp_v4_request_recv_sock(const struct sock *sk,
if (__inet_inherit_port(sk, newsk) < 0)
goto put_and_exit;
*own_req = inet_ehash_nolisten(newsk, req_to_sk(req_unhash));
-
+ if (*own_req)
+ ireq->ireq_opt = NULL;
+ else
+ newinet->inet_opt = NULL;
return newsk;
exit_overflow:
@@ -441,6 +443,7 @@ exit:
NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_LISTENDROPS);
return NULL;
put_and_exit:
+ newinet->inet_opt = NULL;
inet_csk_prepare_forced_close(newsk);
dccp_done(newsk);
goto exit;
@@ -492,7 +495,7 @@ static int dccp_v4_send_response(const struct sock *sk, struct request_sock *req
ireq->ir_rmt_addr);
err = ip_build_and_send_pkt(skb, sk, ireq->ir_loc_addr,
ireq->ir_rmt_addr,
- ireq->opt);
+ ireq_opt_deref(ireq));
err = net_xmit_eval(err);
}
@@ -546,7 +549,7 @@ out:
static void dccp_v4_reqsk_destructor(struct request_sock *req)
{
dccp_feat_list_purge(&dccp_rsk(req)->dreq_featneg);
- kfree(inet_rsk(req)->opt);
+ kfree(rcu_dereference_protected(inet_rsk(req)->ireq_opt, 1));
}
void dccp_syn_ack_timeout(const struct request_sock *req)
diff --git a/net/dsa/Kconfig b/net/dsa/Kconfig
index ff7736f7ff42..fc0c09e770e6 100644
--- a/net/dsa/Kconfig
+++ b/net/dsa/Kconfig
@@ -1,12 +1,13 @@
config HAVE_NET_DSA
def_bool y
- depends on NETDEVICES && !S390
+ depends on INET && NETDEVICES && !S390
# Drivers must select NET_DSA and the appropriate tagging format
config NET_DSA
tristate "Distributed Switch Architecture"
- depends on HAVE_NET_DSA && NET_SWITCHDEV
+ depends on HAVE_NET_DSA
+ select NET_SWITCHDEV
select PHYLIB
---help---
Say Y if you want to enable support for the hardware switches supported
diff --git a/net/ipv4/ah4.c b/net/ipv4/ah4.c
index f2a71025a770..22377c8ff14b 100644
--- a/net/ipv4/ah4.c
+++ b/net/ipv4/ah4.c
@@ -270,6 +270,9 @@ static void ah_input_done(struct crypto_async_request *base, int err)
int ihl = ip_hdrlen(skb);
int ah_hlen = (ah->hdrlen + 2) << 2;
+ if (err)
+ goto out;
+
work_iph = AH_SKB_CB(skb)->tmp;
auth_data = ah_tmp_auth(work_iph, ihl);
icv = ah_tmp_icv(ahp->ahash, auth_data, ahp->icv_trunc_len);
diff --git a/net/ipv4/cipso_ipv4.c b/net/ipv4/cipso_ipv4.c
index 6cc3e1d602fb..5f3b81941a6f 100644
--- a/net/ipv4/cipso_ipv4.c
+++ b/net/ipv4/cipso_ipv4.c
@@ -2012,7 +2012,7 @@ int cipso_v4_req_setattr(struct request_sock *req,
buf = NULL;
req_inet = inet_rsk(req);
- opt = xchg(&req_inet->opt, opt);
+ opt = xchg((__force struct ip_options_rcu **)&req_inet->ireq_opt, opt);
if (opt)
kfree_rcu(opt, rcu);
@@ -2034,11 +2034,13 @@ req_setattr_failure:
* values on failure.
*
*/
-static int cipso_v4_delopt(struct ip_options_rcu **opt_ptr)
+static int cipso_v4_delopt(struct ip_options_rcu __rcu **opt_ptr)
{
+ struct ip_options_rcu *opt = rcu_dereference_protected(*opt_ptr, 1);
int hdr_delta = 0;
- struct ip_options_rcu *opt = *opt_ptr;
+ if (!opt || opt->opt.cipso == 0)
+ return 0;
if (opt->opt.srr || opt->opt.rr || opt->opt.ts || opt->opt.router_alert) {
u8 cipso_len;
u8 cipso_off;
@@ -2100,14 +2102,10 @@ static int cipso_v4_delopt(struct ip_options_rcu **opt_ptr)
*/
void cipso_v4_sock_delattr(struct sock *sk)
{
- int hdr_delta;
- struct ip_options_rcu *opt;
struct inet_sock *sk_inet;
+ int hdr_delta;
sk_inet = inet_sk(sk);
- opt = rcu_dereference_protected(sk_inet->inet_opt, 1);
- if (!opt || opt->opt.cipso == 0)
- return;
hdr_delta = cipso_v4_delopt(&sk_inet->inet_opt);
if (sk_inet->is_icsk && hdr_delta > 0) {
@@ -2127,15 +2125,7 @@ void cipso_v4_sock_delattr(struct sock *sk)
*/
void cipso_v4_req_delattr(struct request_sock *req)
{
- struct ip_options_rcu *opt;
- struct inet_request_sock *req_inet;
-
- req_inet = inet_rsk(req);
- opt = req_inet->opt;
- if (!opt || opt->opt.cipso == 0)
- return;
-
- cipso_v4_delopt(&req_inet->opt);
+ cipso_v4_delopt(&inet_rsk(req)->ireq_opt);
}
/**
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index 45fa2aaa3d3f..01acb94c4963 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -412,9 +412,11 @@ struct dst_entry *inet_csk_route_req(const struct sock *sk,
{
const struct inet_request_sock *ireq = inet_rsk(req);
struct net *net = read_pnet(&ireq->ireq_net);
- struct ip_options_rcu *opt = ireq->opt;
+ struct ip_options_rcu *opt;
struct rtable *rt;
+ opt = ireq_opt_deref(ireq);
+
flowi4_init_output(fl4, ireq->ir_iif, ireq->ir_mark,
RT_CONN_FLAGS(sk), RT_SCOPE_UNIVERSE,
sk->sk_protocol, inet_sk_flowi_flags(sk),
@@ -448,10 +450,9 @@ struct dst_entry *inet_csk_route_child_sock(const struct sock *sk,
struct flowi4 *fl4;
struct rtable *rt;
+ opt = rcu_dereference(ireq->ireq_opt);
fl4 = &newinet->cork.fl.u.ip4;
- rcu_read_lock();
- opt = rcu_dereference(newinet->inet_opt);
flowi4_init_output(fl4, ireq->ir_iif, ireq->ir_mark,
RT_CONN_FLAGS(sk), RT_SCOPE_UNIVERSE,
sk->sk_protocol, inet_sk_flowi_flags(sk),
@@ -464,13 +465,11 @@ struct dst_entry *inet_csk_route_child_sock(const struct sock *sk,
goto no_route;
if (opt && opt->opt.is_strictroute && rt->rt_uses_gateway)
goto route_err;
- rcu_read_unlock();
return &rt->dst;
route_err:
ip_rt_put(rt);
no_route:
- rcu_read_unlock();
IP_INC_STATS_BH(net, IPSTATS_MIB_OUTNOROUTES);
return NULL;
}
diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c
index a09fb0dec725..486b283a6cd1 100644
--- a/net/ipv4/ipip.c
+++ b/net/ipv4/ipip.c
@@ -129,42 +129,68 @@ static struct rtnl_link_ops ipip_link_ops __read_mostly;
static int ipip_err(struct sk_buff *skb, u32 info)
{
-/* All the routers (except for Linux) return only
- 8 bytes of packet payload. It means, that precise relaying of
- ICMP in the real Internet is absolutely infeasible.
- */
+ /* All the routers (except for Linux) return only
+ 8 bytes of packet payload. It means, that precise relaying of
+ ICMP in the real Internet is absolutely infeasible.
+ */
struct net *net = dev_net(skb->dev);
struct ip_tunnel_net *itn = net_generic(net, ipip_net_id);
const struct iphdr *iph = (const struct iphdr *)skb->data;
- struct ip_tunnel *t;
- int err;
const int type = icmp_hdr(skb)->type;
const int code = icmp_hdr(skb)->code;
+ struct ip_tunnel *t;
+ int err = 0;
+
+ switch (type) {
+ case ICMP_DEST_UNREACH:
+ switch (code) {
+ case ICMP_SR_FAILED:
+ /* Impossible event. */
+ goto out;
+ default:
+ /* All others are translated to HOST_UNREACH.
+ * rfc2003 contains "deep thoughts" about NET_UNREACH,
+ * I believe they are just ether pollution. --ANK
+ */
+ break;
+ }
+ break;
+
+ case ICMP_TIME_EXCEEDED:
+ if (code != ICMP_EXC_TTL)
+ goto out;
+ break;
+
+ case ICMP_REDIRECT:
+ break;
+
+ default:
+ goto out;
+ }
- err = -ENOENT;
t = ip_tunnel_lookup(itn, skb->dev->ifindex, TUNNEL_NO_KEY,
iph->daddr, iph->saddr, 0);
- if (!t)
+ if (!t) {
+ err = -ENOENT;
goto out;
+ }
if (type == ICMP_DEST_UNREACH && code == ICMP_FRAG_NEEDED) {
- ipv4_update_pmtu(skb, dev_net(skb->dev), info,
- t->parms.link, 0, IPPROTO_IPIP, 0);
- err = 0;
+ ipv4_update_pmtu(skb, net, info, t->parms.link, 0,
+ iph->protocol, 0);
goto out;
}
if (type == ICMP_REDIRECT) {
- ipv4_redirect(skb, dev_net(skb->dev), t->parms.link, 0,
- IPPROTO_IPIP, 0);
- err = 0;
+ ipv4_redirect(skb, net, t->parms.link, 0, iph->protocol, 0);
goto out;
}
- if (t->parms.iph.daddr == 0)
+ if (t->parms.iph.daddr == 0) {
+ err = -ENOENT;
goto out;
+ }
- err = 0;
if (t->parms.iph.ttl == 0 && type == ICMP_TIME_EXCEEDED)
goto out;
diff --git a/net/ipv4/syncookies.c b/net/ipv4/syncookies.c
index 731b91409625..c22a74374a9c 100644
--- a/net/ipv4/syncookies.c
+++ b/net/ipv4/syncookies.c
@@ -357,7 +357,7 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb)
/* We throwed the options of the initial SYN away, so we hope
* the ACK carries the same options again (see RFC1122 4.2.3.8)
*/
- ireq->opt = tcp_v4_save_options(skb);
+ RCU_INIT_POINTER(ireq->ireq_opt, tcp_v4_save_options(skb));
if (security_inet_conn_request(sk, skb, req)) {
reqsk_free(req);
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index c4bbf704ff9c..9e8d70160d20 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -6105,7 +6105,7 @@ struct request_sock *inet_reqsk_alloc(const struct request_sock_ops *ops,
struct inet_request_sock *ireq = inet_rsk(req);
kmemcheck_annotate_bitfield(ireq, flags);
- ireq->opt = NULL;
+ ireq->ireq_opt = NULL;
atomic64_set(&ireq->ir_cookie, 0);
ireq->ireq_state = TCP_NEW_SYN_RECV;
write_pnet(&ireq->ireq_net, sock_net(sk_listener));
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 6d84e7c8c8a9..84f0816ac9a1 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -863,7 +863,7 @@ static int tcp_v4_send_synack(const struct sock *sk, struct dst_entry *dst,
err = ip_build_and_send_pkt(skb, sk, ireq->ir_loc_addr,
ireq->ir_rmt_addr,
- ireq->opt);
+ ireq_opt_deref(ireq));
err = net_xmit_eval(err);
}
@@ -875,7 +875,7 @@ static int tcp_v4_send_synack(const struct sock *sk, struct dst_entry *dst,
*/
static void tcp_v4_reqsk_destructor(struct request_sock *req)
{
- kfree(inet_rsk(req)->opt);
+ kfree(rcu_dereference_protected(inet_rsk(req)->ireq_opt, 1));
}
@@ -1204,7 +1204,7 @@ static void tcp_v4_init_req(struct request_sock *req,
sk_rcv_saddr_set(req_to_sk(req), ip_hdr(skb)->daddr);
sk_daddr_set(req_to_sk(req), ip_hdr(skb)->saddr);
ireq->no_srccheck = inet_sk(sk_listener)->transparent;
- ireq->opt = tcp_v4_save_options(skb);
+ RCU_INIT_POINTER(ireq->ireq_opt, tcp_v4_save_options(skb));
}
static struct dst_entry *tcp_v4_route_req(const struct sock *sk,
@@ -1299,10 +1299,9 @@ struct sock *tcp_v4_syn_recv_sock(const struct sock *sk, struct sk_buff *skb,
ireq = inet_rsk(req);
sk_daddr_set(newsk, ireq->ir_rmt_addr);
sk_rcv_saddr_set(newsk, ireq->ir_loc_addr);
- newinet->inet_saddr = ireq->ir_loc_addr;
- inet_opt = ireq->opt;
- rcu_assign_pointer(newinet->inet_opt, inet_opt);
- ireq->opt = NULL;
+ newinet->inet_saddr = ireq->ir_loc_addr;
+ inet_opt = rcu_dereference(ireq->ireq_opt);
+ RCU_INIT_POINTER(newinet->inet_opt, inet_opt);
newinet->mc_index = inet_iif(skb);
newinet->mc_ttl = ip_hdr(skb)->ttl;
newinet->rcv_tos = ip_hdr(skb)->tos;
@@ -1350,9 +1349,12 @@ struct sock *tcp_v4_syn_recv_sock(const struct sock *sk, struct sk_buff *skb,
if (__inet_inherit_port(sk, newsk) < 0)
goto put_and_exit;
*own_req = inet_ehash_nolisten(newsk, req_to_sk(req_unhash));
- if (*own_req)
+ if (likely(*own_req)) {
tcp_move_syn(newtp, req);
-
+ ireq->ireq_opt = NULL;
+ } else {
+ newinet->inet_opt = NULL;
+ }
return newsk;
exit_overflow:
@@ -1363,6 +1365,7 @@ exit:
NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_LISTENDROPS);
return NULL;
put_and_exit:
+ newinet->inet_opt = NULL;
inet_csk_prepare_forced_close(newsk);
tcp_done(newsk);
goto exit;
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 850d1b5bfd81..39c2919fe0d3 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -1951,6 +1951,7 @@ static int tcp_mtu_probe(struct sock *sk)
nskb->ip_summed = skb->ip_summed;
tcp_insert_write_queue_before(nskb, skb, sk);
+ tcp_highest_sack_replace(sk, skb, nskb);
len = 0;
tcp_for_write_queue_from_safe(skb, next, sk) {
@@ -2464,7 +2465,7 @@ static void tcp_collapse_retrans(struct sock *sk, struct sk_buff *skb)
BUG_ON(tcp_skb_pcount(skb) != 1 || tcp_skb_pcount(next_skb) != 1);
- tcp_highest_sack_combine(sk, next_skb, skb);
+ tcp_highest_sack_replace(sk, next_skb, skb);
tcp_unlink_write_queue(next_skb, sk);
@@ -3017,13 +3018,8 @@ struct sk_buff *tcp_make_synack(const struct sock *sk, struct dst_entry *dst,
tcp_ecn_make_synack(req, th);
th->source = htons(ireq->ir_num);
th->dest = ireq->ir_rmt_port;
- /* Setting of flags are superfluous here for callers (and ECE is
- * not even correctly set)
- */
- tcp_init_nondata_skb(skb, tcp_rsk(req)->snt_isn,
- TCPHDR_SYN | TCPHDR_ACK);
-
- th->seq = htonl(TCP_SKB_CB(skb)->seq);
+ skb->ip_summed = CHECKSUM_PARTIAL;
+ th->seq = htonl(tcp_rsk(req)->snt_isn);
/* XXX data is queued and acked as is. No buffer/window check */
th->ack_seq = htonl(tcp_rsk(req)->rcv_nxt);
diff --git a/net/ipv6/ip6_flowlabel.c b/net/ipv6/ip6_flowlabel.c
index dc2db4f7b182..f3a0a9c0f61e 100644
--- a/net/ipv6/ip6_flowlabel.c
+++ b/net/ipv6/ip6_flowlabel.c
@@ -315,6 +315,7 @@ struct ipv6_txoptions *fl6_merge_options(struct ipv6_txoptions *opt_space,
}
opt_space->dst1opt = fopt->dst1opt;
opt_space->opt_flen = fopt->opt_flen;
+ opt_space->tot_len = fopt->tot_len;
return opt_space;
}
EXPORT_SYMBOL_GPL(fl6_merge_options);
diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c
index eab117033b8a..c878cbf65485 100644
--- a/net/ipv6/ip6_gre.c
+++ b/net/ipv6/ip6_gre.c
@@ -409,13 +409,16 @@ static void ip6gre_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
case ICMPV6_DEST_UNREACH:
net_dbg_ratelimited("%s: Path to destination invalid or inactive!\n",
t->parms.name);
- break;
+ if (code != ICMPV6_PORT_UNREACH)
+ break;
+ return;
case ICMPV6_TIME_EXCEED:
if (code == ICMPV6_EXC_HOPLIMIT) {
net_dbg_ratelimited("%s: Too small hop limit or routing loop in tunnel!\n",
t->parms.name);
+ break;
}
- break;
+ return;
case ICMPV6_PARAMPROB:
teli = 0;
if (code == ICMPV6_HDR_FIELD)
@@ -431,13 +434,13 @@ static void ip6gre_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
net_dbg_ratelimited("%s: Recipient unable to parse tunneled packet!\n",
t->parms.name);
}
- break;
+ return;
case ICMPV6_PKT_TOOBIG:
mtu = be32_to_cpu(info) - offset;
if (mtu < IPV6_MIN_MTU)
mtu = IPV6_MIN_MTU;
t->dev->mtu = mtu;
- break;
+ return;
}
if (time_before(jiffies, t->err_time + IP6TUNNEL_ERR_TIMEO))
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index e22339fad10b..71624cf26832 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -1201,11 +1201,11 @@ static int ip6_setup_cork(struct sock *sk, struct inet_cork_full *cork,
if (WARN_ON(v6_cork->opt))
return -EINVAL;
- v6_cork->opt = kzalloc(opt->tot_len, sk->sk_allocation);
+ v6_cork->opt = kzalloc(sizeof(*opt), sk->sk_allocation);
if (unlikely(!v6_cork->opt))
return -ENOBUFS;
- v6_cork->opt->tot_len = opt->tot_len;
+ v6_cork->opt->tot_len = sizeof(*opt);
v6_cork->opt->opt_flen = opt->opt_flen;
v6_cork->opt->opt_nflen = opt->opt_nflen;
diff --git a/net/l2tp/l2tp_ppp.c b/net/l2tp/l2tp_ppp.c
index 8ab9c5d74416..67f2e72723b2 100644
--- a/net/l2tp/l2tp_ppp.c
+++ b/net/l2tp/l2tp_ppp.c
@@ -1015,6 +1015,9 @@ static int pppol2tp_session_ioctl(struct l2tp_session *session,
session->name, cmd, arg);
sk = ps->sock;
+ if (!sk)
+ return -EBADR;
+
sock_hold(sk);
switch (cmd) {
diff --git a/net/mac80211/key.c b/net/mac80211/key.c
index 44388d6a1d8e..4a72c0d1e56f 100644
--- a/net/mac80211/key.c
+++ b/net/mac80211/key.c
@@ -4,6 +4,7 @@
* Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
* Copyright 2007-2008 Johannes Berg <johannes@sipsolutions.net>
* Copyright 2013-2014 Intel Mobile Communications GmbH
+ * Copyright 2017 Intel Deutschland GmbH
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
@@ -18,6 +19,7 @@
#include <linux/slab.h>
#include <linux/export.h>
#include <net/mac80211.h>
+#include <crypto/algapi.h>
#include <asm/unaligned.h>
#include "ieee80211_i.h"
#include "driver-ops.h"
@@ -606,6 +608,39 @@ void ieee80211_key_free_unused(struct ieee80211_key *key)
ieee80211_key_free_common(key);
}
+static bool ieee80211_key_identical(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_key *old,
+ struct ieee80211_key *new)
+{
+ u8 tkip_old[WLAN_KEY_LEN_TKIP], tkip_new[WLAN_KEY_LEN_TKIP];
+ u8 *tk_old, *tk_new;
+
+ if (!old || new->conf.keylen != old->conf.keylen)
+ return false;
+
+ tk_old = old->conf.key;
+ tk_new = new->conf.key;
+
+ /*
+ * In station mode, don't compare the TX MIC key, as it's never used
+ * and offloaded rekeying may not care to send it to the host. This
+ * is the case in iwlwifi, for example.
+ */
+ if (sdata->vif.type == NL80211_IFTYPE_STATION &&
+ new->conf.cipher == WLAN_CIPHER_SUITE_TKIP &&
+ new->conf.keylen == WLAN_KEY_LEN_TKIP &&
+ !(new->conf.flags & IEEE80211_KEY_FLAG_PAIRWISE)) {
+ memcpy(tkip_old, tk_old, WLAN_KEY_LEN_TKIP);
+ memcpy(tkip_new, tk_new, WLAN_KEY_LEN_TKIP);
+ memset(tkip_old + NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY, 0, 8);
+ memset(tkip_new + NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY, 0, 8);
+ tk_old = tkip_old;
+ tk_new = tkip_new;
+ }
+
+ return !crypto_memneq(tk_old, tk_new, new->conf.keylen);
+}
+
int ieee80211_key_link(struct ieee80211_key *key,
struct ieee80211_sub_if_data *sdata,
struct sta_info *sta)
@@ -617,9 +652,6 @@ int ieee80211_key_link(struct ieee80211_key *key,
pairwise = key->conf.flags & IEEE80211_KEY_FLAG_PAIRWISE;
idx = key->conf.keyidx;
- key->local = sdata->local;
- key->sdata = sdata;
- key->sta = sta;
mutex_lock(&sdata->local->key_mtx);
@@ -630,6 +662,20 @@ int ieee80211_key_link(struct ieee80211_key *key,
else
old_key = key_mtx_dereference(sdata->local, sdata->keys[idx]);
+ /*
+ * Silently accept key re-installation without really installing the
+ * new version of the key to avoid nonce reuse or replay issues.
+ */
+ if (ieee80211_key_identical(sdata, old_key, key)) {
+ ieee80211_key_free_unused(key);
+ ret = 0;
+ goto out;
+ }
+
+ key->local = sdata->local;
+ key->sdata = sdata;
+ key->sta = sta;
+
increment_tailroom_need_count(sdata);
ieee80211_key_replace(sdata, sta, pairwise, old_key, key);
@@ -645,6 +691,7 @@ int ieee80211_key_link(struct ieee80211_key *key,
ret = 0;
}
+ out:
mutex_unlock(&sdata->local->key_mtx);
return ret;
diff --git a/net/netfilter/nft_meta.c b/net/netfilter/nft_meta.c
index 9dfaf4d55ee0..a97a5bf716be 100644
--- a/net/netfilter/nft_meta.c
+++ b/net/netfilter/nft_meta.c
@@ -151,8 +151,34 @@ void nft_meta_get_eval(const struct nft_expr *expr,
else
*dest = PACKET_BROADCAST;
break;
+ case NFPROTO_NETDEV:
+ switch (skb->protocol) {
+ case htons(ETH_P_IP): {
+ int noff = skb_network_offset(skb);
+ struct iphdr *iph, _iph;
+
+ iph = skb_header_pointer(skb, noff,
+ sizeof(_iph), &_iph);
+ if (!iph)
+ goto err;
+
+ if (ipv4_is_multicast(iph->daddr))
+ *dest = PACKET_MULTICAST;
+ else
+ *dest = PACKET_BROADCAST;
+
+ break;
+ }
+ case htons(ETH_P_IPV6):
+ *dest = PACKET_MULTICAST;
+ break;
+ default:
+ WARN_ON_ONCE(1);
+ goto err;
+ }
+ break;
default:
- WARN_ON(1);
+ WARN_ON_ONCE(1);
goto err;
}
break;
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index acfb16fdcd55..9ecdd61c6463 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -2077,7 +2077,7 @@ static int netlink_dump(struct sock *sk)
struct sk_buff *skb = NULL;
struct nlmsghdr *nlh;
struct module *module;
- int len, err = -ENOBUFS;
+ int err = -ENOBUFS;
int alloc_min_size;
int alloc_size;
@@ -2125,9 +2125,11 @@ static int netlink_dump(struct sock *sk)
skb_reserve(skb, skb_tailroom(skb) - alloc_size);
netlink_skb_set_owner_r(skb, sk);
- len = cb->dump(skb, cb);
+ if (nlk->dump_done_errno > 0)
+ nlk->dump_done_errno = cb->dump(skb, cb);
- if (len > 0) {
+ if (nlk->dump_done_errno > 0 ||
+ skb_tailroom(skb) < nlmsg_total_size(sizeof(nlk->dump_done_errno))) {
mutex_unlock(nlk->cb_mutex);
if (sk_filter(sk, skb))
@@ -2137,13 +2139,15 @@ static int netlink_dump(struct sock *sk)
return 0;
}
- nlh = nlmsg_put_answer(skb, cb, NLMSG_DONE, sizeof(len), NLM_F_MULTI);
- if (!nlh)
+ nlh = nlmsg_put_answer(skb, cb, NLMSG_DONE,
+ sizeof(nlk->dump_done_errno), NLM_F_MULTI);
+ if (WARN_ON(!nlh))
goto errout_skb;
nl_dump_check_consistent(cb, nlh);
- memcpy(nlmsg_data(nlh), &len, sizeof(len));
+ memcpy(nlmsg_data(nlh), &nlk->dump_done_errno,
+ sizeof(nlk->dump_done_errno));
if (sk_filter(sk, skb))
kfree_skb(skb);
@@ -2208,6 +2212,7 @@ int __netlink_dump_start(struct sock *ssk, struct sk_buff *skb,
cb->skb = skb;
nlk->cb_running = true;
+ nlk->dump_done_errno = INT_MAX;
mutex_unlock(nlk->cb_mutex);
diff --git a/net/netlink/af_netlink.h b/net/netlink/af_netlink.h
index ea4600aea6b0..d987696c0eb4 100644
--- a/net/netlink/af_netlink.h
+++ b/net/netlink/af_netlink.h
@@ -38,6 +38,7 @@ struct netlink_sock {
wait_queue_head_t wait;
bool bound;
bool cb_running;
+ int dump_done_errno;
struct netlink_callback cb;
struct mutex *cb_mutex;
struct mutex cb_def_mutex;
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index cceaab0a9261..52fad3116a01 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -1725,7 +1725,7 @@ static int fanout_add(struct sock *sk, u16 id, u16 type_flags)
out:
if (err && rollover) {
- kfree(rollover);
+ kfree_rcu(rollover, rcu);
po->rollover = NULL;
}
mutex_unlock(&fanout_mutex);
@@ -1752,8 +1752,10 @@ static struct packet_fanout *fanout_release(struct sock *sk)
else
f = NULL;
- if (po->rollover)
+ if (po->rollover) {
kfree_rcu(po->rollover, rcu);
+ po->rollover = NULL;
+ }
}
mutex_unlock(&fanout_mutex);
@@ -3770,6 +3772,7 @@ static int packet_getsockopt(struct socket *sock, int level, int optname,
void *data = &val;
union tpacket_stats_u st;
struct tpacket_rollover_stats rstats;
+ struct packet_rollover *rollover;
if (level != SOL_PACKET)
return -ENOPROTOOPT;
@@ -3848,13 +3851,18 @@ static int packet_getsockopt(struct socket *sock, int level, int optname,
0);
break;
case PACKET_ROLLOVER_STATS:
- if (!po->rollover)
+ rcu_read_lock();
+ rollover = rcu_dereference(po->rollover);
+ if (rollover) {
+ rstats.tp_all = atomic_long_read(&rollover->num);
+ rstats.tp_huge = atomic_long_read(&rollover->num_huge);
+ rstats.tp_failed = atomic_long_read(&rollover->num_failed);
+ data = &rstats;
+ lv = sizeof(rstats);
+ }
+ rcu_read_unlock();
+ if (!rollover)
return -EINVAL;
- rstats.tp_all = atomic_long_read(&po->rollover->num);
- rstats.tp_huge = atomic_long_read(&po->rollover->num_huge);
- rstats.tp_failed = atomic_long_read(&po->rollover->num_failed);
- data = &rstats;
- lv = sizeof(rstats);
break;
case PACKET_TX_HAS_OFF:
val = po->tp_tx_has_off;
diff --git a/net/sctp/input.c b/net/sctp/input.c
index 2d7859c03fd2..71c2ef84c5b0 100644
--- a/net/sctp/input.c
+++ b/net/sctp/input.c
@@ -420,7 +420,7 @@ void sctp_icmp_redirect(struct sock *sk, struct sctp_transport *t,
{
struct dst_entry *dst;
- if (!t)
+ if (sock_owned_by_user(sk) || !t)
return;
dst = sctp_transport_dst_check(t);
if (dst)
diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c
index e33e9bd4ed5a..8a61ccc37e12 100644
--- a/net/sctp/ipv6.c
+++ b/net/sctp/ipv6.c
@@ -806,6 +806,8 @@ static void sctp_inet6_skb_msgname(struct sk_buff *skb, char *msgname,
if (ipv6_addr_type(&addr->v6.sin6_addr) & IPV6_ADDR_LINKLOCAL) {
struct sctp_ulpevent *ev = sctp_skb2event(skb);
addr->v6.sin6_scope_id = ev->iif;
+ } else {
+ addr->v6.sin6_scope_id = 0;
}
}
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 3ebf3b652d60..272edd7748a0 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -168,6 +168,36 @@ static inline void sctp_set_owner_w(struct sctp_chunk *chunk)
sk_mem_charge(sk, chunk->skb->truesize);
}
+static void sctp_clear_owner_w(struct sctp_chunk *chunk)
+{
+ skb_orphan(chunk->skb);
+}
+
+static void sctp_for_each_tx_datachunk(struct sctp_association *asoc,
+ void (*cb)(struct sctp_chunk *))
+
+{
+ struct sctp_outq *q = &asoc->outqueue;
+ struct sctp_transport *t;
+ struct sctp_chunk *chunk;
+
+ list_for_each_entry(t, &asoc->peer.transport_addr_list, transports)
+ list_for_each_entry(chunk, &t->transmitted, transmitted_list)
+ cb(chunk);
+
+ list_for_each_entry(chunk, &q->retransmit, list)
+ cb(chunk);
+
+ list_for_each_entry(chunk, &q->sacked, list)
+ cb(chunk);
+
+ list_for_each_entry(chunk, &q->abandoned, list)
+ cb(chunk);
+
+ list_for_each_entry(chunk, &q->out_chunk_list, list)
+ cb(chunk);
+}
+
/* Verify that this is a valid address. */
static inline int sctp_verify_addr(struct sock *sk, union sctp_addr *addr,
int len)
@@ -4423,6 +4453,14 @@ int sctp_do_peeloff(struct sock *sk, sctp_assoc_t id, struct socket **sockp)
struct socket *sock;
int err = 0;
+ /* Do not peel off from one netns to another one. */
+ if (!net_eq(current->nsproxy->net_ns, sock_net(sk)))
+ return -EINVAL;
+
+ /* Do not peel off from one netns to another one. */
+ if (!net_eq(current->nsproxy->net_ns, sock_net(sk)))
+ return -EINVAL;
+
if (!asoc)
return -EINVAL;
@@ -7362,7 +7400,9 @@ static void sctp_sock_migrate(struct sock *oldsk, struct sock *newsk,
* paths won't try to lock it and then oldsk.
*/
lock_sock_nested(newsk, SINGLE_DEPTH_NESTING);
+ sctp_for_each_tx_datachunk(assoc, sctp_clear_owner_w);
sctp_assoc_migrate(assoc, newsk);
+ sctp_for_each_tx_datachunk(assoc, sctp_set_owner_w);
/* If the association on the newsk is already closed before accept()
* is called, set RCV_SHUTDOWN flag.
diff --git a/net/tipc/link.c b/net/tipc/link.c
index 72268eac4ec7..736fffb28ab6 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -1084,25 +1084,6 @@ drop:
return rc;
}
-/*
- * Send protocol message to the other endpoint.
- */
-void tipc_link_proto_xmit(struct tipc_link *l, u32 msg_typ, int probe_msg,
- u32 gap, u32 tolerance, u32 priority)
-{
- struct sk_buff *skb = NULL;
- struct sk_buff_head xmitq;
-
- __skb_queue_head_init(&xmitq);
- tipc_link_build_proto_msg(l, msg_typ, probe_msg, gap,
- tolerance, priority, &xmitq);
- skb = __skb_dequeue(&xmitq);
- if (!skb)
- return;
- tipc_bearer_xmit_skb(l->net, l->bearer_id, skb, l->media_addr);
- l->rcv_unacked = 0;
-}
-
static void tipc_link_build_proto_msg(struct tipc_link *l, int mtyp, bool probe,
u16 rcvgap, int tolerance, int priority,
struct sk_buff_head *xmitq)
@@ -1636,9 +1617,12 @@ int tipc_nl_link_set(struct sk_buff *skb, struct genl_info *info)
char *name;
struct tipc_link *link;
struct tipc_node *node;
+ struct sk_buff_head xmitq;
struct nlattr *attrs[TIPC_NLA_LINK_MAX + 1];
struct net *net = sock_net(skb->sk);
+ __skb_queue_head_init(&xmitq);
+
if (!info->attrs[TIPC_NLA_LINK])
return -EINVAL;
@@ -1683,14 +1667,14 @@ int tipc_nl_link_set(struct sk_buff *skb, struct genl_info *info)
tol = nla_get_u32(props[TIPC_NLA_PROP_TOL]);
link->tolerance = tol;
- tipc_link_proto_xmit(link, STATE_MSG, 0, 0, tol, 0);
+ tipc_link_build_proto_msg(link, STATE_MSG, 0, 0, tol, 0, &xmitq);
}
if (props[TIPC_NLA_PROP_PRIO]) {
u32 prio;
prio = nla_get_u32(props[TIPC_NLA_PROP_PRIO]);
link->priority = prio;
- tipc_link_proto_xmit(link, STATE_MSG, 0, 0, 0, prio);
+ tipc_link_build_proto_msg(link, STATE_MSG, 0, 0, 0, prio, &xmitq);
}
if (props[TIPC_NLA_PROP_WIN]) {
u32 win;
@@ -1702,7 +1686,7 @@ int tipc_nl_link_set(struct sk_buff *skb, struct genl_info *info)
out:
tipc_node_unlock(node);
-
+ tipc_bearer_xmit(net, bearer_id, &xmitq, &node->links[bearer_id].maddr);
return res;
}
diff --git a/net/tipc/link.h b/net/tipc/link.h
index 66d859b66c84..2a0d58671e88 100644
--- a/net/tipc/link.h
+++ b/net/tipc/link.h
@@ -153,7 +153,6 @@ struct tipc_stats {
struct tipc_link {
u32 addr;
char name[TIPC_MAX_LINK_NAME];
- struct tipc_media_addr *media_addr;
struct net *net;
/* Management and link supervision data */
diff --git a/net/unix/diag.c b/net/unix/diag.c
index 4d9679701a6d..384c84e83462 100644
--- a/net/unix/diag.c
+++ b/net/unix/diag.c
@@ -257,6 +257,8 @@ static int unix_diag_get_exact(struct sk_buff *in_skb,
err = -ENOENT;
if (sk == NULL)
goto out_nosk;
+ if (!net_eq(sock_net(sk), net))
+ goto out;
err = sock_diag_check_cookie(sk, req->udiag_cookie);
if (err)
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-29 00:09:23 +0000