diff options
Diffstat (limited to 'net')
83 files changed, 759 insertions, 302 deletions
diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c index 1b659ab652fb..bbe8414b6ee7 100644 --- a/net/batman-adv/bat_iv_ogm.c +++ b/net/batman-adv/bat_iv_ogm.c @@ -1214,7 +1214,7 @@ static bool batadv_iv_ogm_calc_tq(struct batadv_orig_node *orig_node, orig_node->last_seen = jiffies; /* find packet count of corresponding one hop neighbor */ - spin_lock_bh(&orig_node->bat_iv.ogm_cnt_lock); + spin_lock_bh(&orig_neigh_node->bat_iv.ogm_cnt_lock); if_num = if_incoming->if_num; orig_eq_count = orig_neigh_node->bat_iv.bcast_own_sum[if_num]; neigh_ifinfo = batadv_neigh_ifinfo_new(neigh_node, if_outgoing); @@ -1224,7 +1224,7 @@ static bool batadv_iv_ogm_calc_tq(struct batadv_orig_node *orig_node, } else { neigh_rq_count = 0; } - spin_unlock_bh(&orig_node->bat_iv.ogm_cnt_lock); + spin_unlock_bh(&orig_neigh_node->bat_iv.ogm_cnt_lock); /* pay attention to not get a value bigger than 100 % */ if (orig_eq_count > neigh_rq_count) diff --git a/net/batman-adv/bat_v.c b/net/batman-adv/bat_v.c index 341ceab8338d..e0e2bfcd6b3e 100644 --- a/net/batman-adv/bat_v.c +++ b/net/batman-adv/bat_v.c @@ -814,7 +814,7 @@ static bool batadv_v_gw_is_eligible(struct batadv_priv *bat_priv, } orig_gw = batadv_gw_node_get(bat_priv, orig_node); - if (!orig_node) + if (!orig_gw) goto out; if (batadv_v_gw_throughput_get(orig_gw, &orig_throughput) < 0) diff --git a/net/batman-adv/fragmentation.c b/net/batman-adv/fragmentation.c index a98cf1104a30..ebe6e38934e4 100644 --- a/net/batman-adv/fragmentation.c +++ b/net/batman-adv/fragmentation.c @@ -499,6 +499,8 @@ int batadv_frag_send_packet(struct sk_buff *skb, */ if (skb->priority >= 256 && skb->priority <= 263) frag_header.priority = skb->priority - 256; + else + frag_header.priority = 0; ether_addr_copy(frag_header.orig, primary_if->net_dev->dev_addr); ether_addr_copy(frag_header.dest, orig_node->orig); diff --git a/net/batman-adv/tp_meter.c b/net/batman-adv/tp_meter.c index 15cd2139381e..ebc4e2241c77 100644 --- a/net/batman-adv/tp_meter.c +++ b/net/batman-adv/tp_meter.c @@ -482,7 +482,7 @@ static void batadv_tp_reset_sender_timer(struct batadv_tp_vars *tp_vars) /** * batadv_tp_sender_timeout - timer that fires in case of packet loss - * @arg: address of the related tp_vars + * @t: address to timer_list inside tp_vars * * If fired it means that there was packet loss. * Switch to Slow Start, set the ss_threshold to half of the current cwnd and @@ -1106,7 +1106,7 @@ static void batadv_tp_reset_receiver_timer(struct batadv_tp_vars *tp_vars) /** * batadv_tp_receiver_shutdown - stop a tp meter receiver when timeout is * reached without received ack - * @arg: address of the related tp_vars + * @t: address to timer_list inside tp_vars */ static void batadv_tp_receiver_shutdown(struct timer_list *t) { diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c index d0ef0a8e8831..015f465c514b 100644 --- a/net/bridge/br_netlink.c +++ b/net/bridge/br_netlink.c @@ -1262,19 +1262,20 @@ static int br_dev_newlink(struct net *src_net, struct net_device *dev, struct net_bridge *br = netdev_priv(dev); int err; + err = register_netdevice(dev); + if (err) + return err; + if (tb[IFLA_ADDRESS]) { spin_lock_bh(&br->lock); br_stp_change_bridge_id(br, nla_data(tb[IFLA_ADDRESS])); spin_unlock_bh(&br->lock); } - err = register_netdevice(dev); - if (err) - return err; - err = br_changelink(dev, tb, data, extack); if (err) - unregister_netdevice(dev); + br_dev_delete(dev, NULL); + return err; } diff --git a/net/core/dev.c b/net/core/dev.c index f47e96b62308..01ee854454a8 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -3904,7 +3904,7 @@ static u32 netif_receive_generic_xdp(struct sk_buff *skb, hroom > 0 ? ALIGN(hroom, NET_SKB_PAD) : 0, troom > 0 ? troom + 128 : 0, GFP_ATOMIC)) goto do_drop; - if (troom > 0 && __skb_linearize(skb)) + if (skb_linearize(skb)) goto do_drop; } diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c index b797832565d3..60a71be75aea 100644 --- a/net/core/net_namespace.c +++ b/net/core/net_namespace.c @@ -267,7 +267,7 @@ struct net *get_net_ns_by_id(struct net *net, int id) spin_lock_bh(&net->nsid_lock); peer = idr_find(&net->netns_ids, id); if (peer) - get_net(peer); + peer = maybe_get_net(peer); spin_unlock_bh(&net->nsid_lock); rcu_read_unlock(); diff --git a/net/core/netprio_cgroup.c b/net/core/netprio_cgroup.c index 1c4810919a0a..b9057478d69c 100644 --- a/net/core/netprio_cgroup.c +++ b/net/core/netprio_cgroup.c @@ -14,7 +14,6 @@ #include <linux/module.h> #include <linux/slab.h> #include <linux/types.h> -#include <linux/module.h> #include <linux/string.h> #include <linux/errno.h> #include <linux/skbuff.h> diff --git a/net/core/skbuff.c b/net/core/skbuff.c index 6b0ff396fa9d..08f574081315 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -1177,12 +1177,12 @@ int skb_copy_ubufs(struct sk_buff *skb, gfp_t gfp_mask) int i, new_frags; u32 d_off; - if (!num_frags) - return 0; - if (skb_shared(skb) || skb_unclone(skb, gfp_mask)) return -EINVAL; + if (!num_frags) + goto release; + new_frags = (__skb_pagelen(skb) + PAGE_SIZE - 1) >> PAGE_SHIFT; for (i = 0; i < new_frags; i++) { page = alloc_page(gfp_mask); @@ -1238,6 +1238,7 @@ int skb_copy_ubufs(struct sk_buff *skb, gfp_t gfp_mask) __skb_fill_page_desc(skb, new_frags - 1, head, 0, d_off); skb_shinfo(skb)->nr_frags = new_frags; +release: skb_zcopy_clear(skb, false); return 0; } @@ -3654,8 +3655,6 @@ normal: skb_shinfo(nskb)->tx_flags |= skb_shinfo(head_skb)->tx_flags & SKBTX_SHARED_FRAG; - if (skb_zerocopy_clone(nskb, head_skb, GFP_ATOMIC)) - goto err; while (pos < offset + len) { if (i >= nfrags) { @@ -3681,6 +3680,8 @@ normal: if (unlikely(skb_orphan_frags(frag_skb, GFP_ATOMIC))) goto err; + if (skb_zerocopy_clone(nskb, frag_skb, GFP_ATOMIC)) + goto err; *nskb_frag = *frag; __skb_frag_ref(nskb_frag); @@ -4293,7 +4294,7 @@ void skb_complete_tx_timestamp(struct sk_buff *skb, struct sock *sk = skb->sk; if (!skb_may_tx_timestamp(sk, false)) - return; + goto err; /* Take a reference to prevent skb_orphan() from freeing the socket, * but only if the socket refcount is not zero. @@ -4302,7 +4303,11 @@ void skb_complete_tx_timestamp(struct sk_buff *skb, *skb_hwtstamps(skb) = *hwtstamps; __skb_complete_tx_timestamp(skb, sk, SCM_TSTAMP_SND, false); sock_put(sk); + return; } + +err: + kfree_skb(skb); } EXPORT_SYMBOL_GPL(skb_complete_tx_timestamp); diff --git a/net/dsa/slave.c b/net/dsa/slave.c index d6e7a642493b..a95a55f79137 100644 --- a/net/dsa/slave.c +++ b/net/dsa/slave.c @@ -16,7 +16,6 @@ #include <linux/of_net.h> #include <linux/of_mdio.h> #include <linux/mdio.h> -#include <linux/list.h> #include <net/rtnetlink.h> #include <net/pkt_cls.h> #include <net/tc_act/tc_mirred.h> diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c index a4573bccd6da..7a93359fbc72 100644 --- a/net/ipv4/devinet.c +++ b/net/ipv4/devinet.c @@ -1428,7 +1428,7 @@ skip: static bool inetdev_valid_mtu(unsigned int mtu) { - return mtu >= 68; + return mtu >= IPV4_MIN_MTU; } static void inetdev_send_gratuitous_arp(struct net_device *dev, diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c index f52d27a422c3..08259d078b1c 100644 --- a/net/ipv4/fib_frontend.c +++ b/net/ipv4/fib_frontend.c @@ -1298,14 +1298,19 @@ err_table_hash_alloc: static void ip_fib_net_exit(struct net *net) { - unsigned int i; + int i; rtnl_lock(); #ifdef CONFIG_IP_MULTIPLE_TABLES RCU_INIT_POINTER(net->ipv4.fib_main, NULL); RCU_INIT_POINTER(net->ipv4.fib_default, NULL); #endif - for (i = 0; i < FIB_TABLE_HASHSZ; i++) { + /* Destroy the tables in reverse order to guarantee that the + * local table, ID 255, is destroyed before the main table, ID + * 254. This is necessary as the local table may contain + * references to data contained in the main table. + */ + for (i = FIB_TABLE_HASHSZ - 1; i >= 0; i--) { struct hlist_head *head = &net->ipv4.fib_table_hash[i]; struct hlist_node *tmp; struct fib_table *tb; diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c index f04d944f8abe..c586597da20d 100644 --- a/net/ipv4/fib_semantics.c +++ b/net/ipv4/fib_semantics.c @@ -698,7 +698,7 @@ bool fib_metrics_match(struct fib_config *cfg, struct fib_info *fi) nla_for_each_attr(nla, cfg->fc_mx, cfg->fc_mx_len, remaining) { int type = nla_type(nla); - u32 val; + u32 fi_val, val; if (!type) continue; @@ -715,7 +715,11 @@ bool fib_metrics_match(struct fib_config *cfg, struct fib_info *fi) val = nla_get_u32(nla); } - if (fi->fib_metrics->metrics[type - 1] != val) + fi_val = fi->fib_metrics->metrics[type - 1]; + if (type == RTAX_FEATURES) + fi_val &= ~DST_FEATURE_ECN_CA; + + if (fi_val != val) return false; } diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c index d1f8f302dbf3..726f6b608274 100644 --- a/net/ipv4/igmp.c +++ b/net/ipv4/igmp.c @@ -89,6 +89,7 @@ #include <linux/rtnetlink.h> #include <linux/times.h> #include <linux/pkt_sched.h> +#include <linux/byteorder/generic.h> #include <net/net_namespace.h> #include <net/arp.h> @@ -321,6 +322,23 @@ igmp_scount(struct ip_mc_list *pmc, int type, int gdeleted, int sdeleted) return scount; } +/* source address selection per RFC 3376 section 4.2.13 */ +static __be32 igmpv3_get_srcaddr(struct net_device *dev, + const struct flowi4 *fl4) +{ + struct in_device *in_dev = __in_dev_get_rcu(dev); + + if (!in_dev) + return htonl(INADDR_ANY); + + for_ifa(in_dev) { + if (inet_ifa_match(fl4->saddr, ifa)) + return fl4->saddr; + } endfor_ifa(in_dev); + + return htonl(INADDR_ANY); +} + static struct sk_buff *igmpv3_newpack(struct net_device *dev, unsigned int mtu) { struct sk_buff *skb; @@ -368,7 +386,7 @@ static struct sk_buff *igmpv3_newpack(struct net_device *dev, unsigned int mtu) pip->frag_off = htons(IP_DF); pip->ttl = 1; pip->daddr = fl4.daddr; - pip->saddr = fl4.saddr; + pip->saddr = igmpv3_get_srcaddr(dev, &fl4); pip->protocol = IPPROTO_IGMP; pip->tot_len = 0; /* filled in later */ ip_select_ident(net, skb, NULL); @@ -404,16 +422,17 @@ static int grec_size(struct ip_mc_list *pmc, int type, int gdel, int sdel) } static struct sk_buff *add_grhead(struct sk_buff *skb, struct ip_mc_list *pmc, - int type, struct igmpv3_grec **ppgr) + int type, struct igmpv3_grec **ppgr, unsigned int mtu) { struct net_device *dev = pmc->interface->dev; struct igmpv3_report *pih; struct igmpv3_grec *pgr; - if (!skb) - skb = igmpv3_newpack(dev, dev->mtu); - if (!skb) - return NULL; + if (!skb) { + skb = igmpv3_newpack(dev, mtu); + if (!skb) + return NULL; + } pgr = skb_put(skb, sizeof(struct igmpv3_grec)); pgr->grec_type = type; pgr->grec_auxwords = 0; @@ -436,12 +455,17 @@ static struct sk_buff *add_grec(struct sk_buff *skb, struct ip_mc_list *pmc, struct igmpv3_grec *pgr = NULL; struct ip_sf_list *psf, *psf_next, *psf_prev, **psf_list; int scount, stotal, first, isquery, truncate; + unsigned int mtu; if (pmc->multiaddr == IGMP_ALL_HOSTS) return skb; if (ipv4_is_local_multicast(pmc->multiaddr) && !net->ipv4.sysctl_igmp_llm_reports) return skb; + mtu = READ_ONCE(dev->mtu); + if (mtu < IPV4_MIN_MTU) + return skb; + isquery = type == IGMPV3_MODE_IS_INCLUDE || type == IGMPV3_MODE_IS_EXCLUDE; truncate = type == IGMPV3_MODE_IS_EXCLUDE || @@ -462,7 +486,7 @@ static struct sk_buff *add_grec(struct sk_buff *skb, struct ip_mc_list *pmc, AVAILABLE(skb) < grec_size(pmc, type, gdeleted, sdeleted)) { if (skb) igmpv3_sendpack(skb); - skb = igmpv3_newpack(dev, dev->mtu); + skb = igmpv3_newpack(dev, mtu); } } first = 1; @@ -498,12 +522,12 @@ static struct sk_buff *add_grec(struct sk_buff *skb, struct ip_mc_list *pmc, pgr->grec_nsrcs = htons(scount); if (skb) igmpv3_sendpack(skb); - skb = igmpv3_newpack(dev, dev->mtu); + skb = igmpv3_newpack(dev, mtu); first = 1; scount = 0; } if (first) { - skb = add_grhead(skb, pmc, type, &pgr); + skb = add_grhead(skb, pmc, type, &pgr, mtu); first = 0; } if (!skb) @@ -538,7 +562,7 @@ empty_source: igmpv3_sendpack(skb); skb = NULL; /* add_grhead will get a new one */ } - skb = add_grhead(skb, pmc, type, &pgr); + skb = add_grhead(skb, pmc, type, &pgr, mtu); } } if (pgr) diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c index bb6239169b1a..45ffd3d045d2 100644 --- a/net/ipv4/ip_gre.c +++ b/net/ipv4/ip_gre.c @@ -266,7 +266,7 @@ static int erspan_rcv(struct sk_buff *skb, struct tnl_ptk_info *tpi, len = gre_hdr_len + sizeof(*ershdr); if (unlikely(!pskb_may_pull(skb, len))) - return -ENOMEM; + return PACKET_REJECT; iph = ip_hdr(skb); ershdr = (struct erspanhdr *)(skb->data + gre_hdr_len); @@ -1310,6 +1310,7 @@ static const struct net_device_ops erspan_netdev_ops = { static void ipgre_tap_setup(struct net_device *dev) { ether_setup(dev); + dev->max_mtu = 0; dev->netdev_ops = &gre_tap_netdev_ops; dev->priv_flags &= ~IFF_TX_SKB_SHARING; dev->priv_flags |= IFF_LIVE_ADDR_CHANGE; diff --git a/net/ipv4/ip_tunnel.c b/net/ipv4/ip_tunnel.c index fe6fee728ce4..5ddb1cb52bd4 100644 --- a/net/ipv4/ip_tunnel.c +++ b/net/ipv4/ip_tunnel.c @@ -349,8 +349,8 @@ static int ip_tunnel_bind_dev(struct net_device *dev) dev->needed_headroom = t_hlen + hlen; mtu -= (dev->hard_header_len + t_hlen); - if (mtu < 68) - mtu = 68; + if (mtu < IPV4_MIN_MTU) + mtu = IPV4_MIN_MTU; return mtu; } diff --git a/net/ipv4/netfilter/arp_tables.c b/net/ipv4/netfilter/arp_tables.c index f88221aebc9d..0c3c944a7b72 100644 --- a/net/ipv4/netfilter/arp_tables.c +++ b/net/ipv4/netfilter/arp_tables.c @@ -373,7 +373,6 @@ static int mark_source_chains(const struct xt_table_info *newinfo, if (!xt_find_jump_offset(offsets, newpos, newinfo->number)) return 0; - e = entry0 + newpos; } else { /* ... this is a fallthru */ newpos = pos + e->next_offset; diff --git a/net/ipv4/netfilter/ip_tables.c b/net/ipv4/netfilter/ip_tables.c index 4cbe5e80f3bf..2e0d339028bb 100644 --- a/net/ipv4/netfilter/ip_tables.c +++ b/net/ipv4/netfilter/ip_tables.c @@ -439,7 +439,6 @@ mark_source_chains(const struct xt_table_info *newinfo, if (!xt_find_jump_offset(offsets, newpos, newinfo->number)) return 0; - e = entry0 + newpos; } else { /* ... this is a fallthru */ newpos = pos + e->next_offset; diff --git a/net/ipv4/netfilter/ipt_CLUSTERIP.c b/net/ipv4/netfilter/ipt_CLUSTERIP.c index 17b4ca562944..69060e3abe85 100644 --- a/net/ipv4/netfilter/ipt_CLUSTERIP.c +++ b/net/ipv4/netfilter/ipt_CLUSTERIP.c @@ -813,12 +813,13 @@ static int clusterip_net_init(struct net *net) static void clusterip_net_exit(struct net *net) { -#ifdef CONFIG_PROC_FS struct clusterip_net *cn = net_generic(net, clusterip_net_id); +#ifdef CONFIG_PROC_FS proc_remove(cn->procdir); cn->procdir = NULL; #endif nf_unregister_net_hook(net, &cip_arp_ops); + WARN_ON_ONCE(!list_empty(&cn->configs)); } static struct pernet_operations clusterip_net_ops = { diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c index 33b70bfd1122..125c1eab3eaa 100644 --- a/net/ipv4/raw.c +++ b/net/ipv4/raw.c @@ -513,11 +513,16 @@ static int raw_sendmsg(struct sock *sk, struct msghdr *msg, size_t len) int err; struct ip_options_data opt_copy; struct raw_frag_vec rfv; + int hdrincl; err = -EMSGSIZE; if (len > 0xFFFF) goto out; + /* hdrincl should be READ_ONCE(inet->hdrincl) + * but READ_ONCE() doesn't work with bit fields + */ + hdrincl = inet->hdrincl; /* * Check the flags. */ @@ -593,7 +598,7 @@ static int raw_sendmsg(struct sock *sk, struct msghdr *msg, size_t len) /* Linux does not mangle headers on raw sockets, * so that IP options + IP_HDRINCL is non-sense. */ - if (inet->hdrincl) + if (hdrincl) goto done; if (ipc.opt->opt.srr) { if (!daddr) @@ -615,12 +620,12 @@ static int raw_sendmsg(struct sock *sk, struct msghdr *msg, size_t len) flowi4_init_output(&fl4, ipc.oif, sk->sk_mark, tos, RT_SCOPE_UNIVERSE, - inet->hdrincl ? IPPROTO_RAW : sk->sk_protocol, + hdrincl ? IPPROTO_RAW : sk->sk_protocol, inet_sk_flowi_flags(sk) | - (inet->hdrincl ? FLOWI_FLAG_KNOWN_NH : 0), + (hdrincl ? FLOWI_FLAG_KNOWN_NH : 0), daddr, saddr, 0, 0, sk->sk_uid); - if (!inet->hdrincl) { + if (!hdrincl) { rfv.msg = msg; rfv.hlen = 0; @@ -645,7 +650,7 @@ static int raw_sendmsg(struct sock *sk, struct msghdr *msg, size_t len) goto do_confirm; back_from_confirm: - if (inet->hdrincl) + if (hdrincl) err = raw_send_hdrinc(sk, &fl4, msg, len, &rt, msg->msg_flags, &ipc.sockc); diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index 9550cc42de2d..45f750e85714 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -508,9 +508,6 @@ static void tcp_rcv_rtt_update(struct tcp_sock *tp, u32 sample, int win_dep) u32 new_sample = tp->rcv_rtt_est.rtt_us; long m = sample; - if (m == 0) - m = 1; - if (new_sample != 0) { /* If we sample in larger samples in the non-timestamp * case, we could grossly overestimate the RTT especially @@ -547,6 +544,8 @@ static inline void tcp_rcv_rtt_measure(struct tcp_sock *tp) if (before(tp->rcv_nxt, tp->rcv_rtt_est.seq)) return; delta_us = tcp_stamp_us_delta(tp->tcp_mstamp, tp->rcv_rtt_est.time); + if (!delta_us) + delta_us = 1; tcp_rcv_rtt_update(tp, delta_us, 1); new_measure: @@ -563,8 +562,11 @@ static inline void tcp_rcv_rtt_measure_ts(struct sock *sk, (TCP_SKB_CB(skb)->end_seq - TCP_SKB_CB(skb)->seq >= inet_csk(sk)->icsk_ack.rcv_mss)) { u32 delta = tcp_time_stamp(tp) - tp->rx_opt.rcv_tsecr; - u32 delta_us = delta * (USEC_PER_SEC / TCP_TS_HZ); + u32 delta_us; + if (!delta) + delta = 1; + delta_us = delta * (USEC_PER_SEC / TCP_TS_HZ); tcp_rcv_rtt_update(tp, delta_us, 0); } } diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index 77ea45da0fe9..94e28350f420 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -848,7 +848,7 @@ static void tcp_v4_reqsk_send_ack(const struct sock *sk, struct sk_buff *skb, tcp_time_stamp_raw() + tcp_rsk(req)->ts_off, req->ts_recent, 0, - tcp_md5_do_lookup(sk, (union tcp_md5_addr *)&ip_hdr(skb)->daddr, + tcp_md5_do_lookup(sk, (union tcp_md5_addr *)&ip_hdr(skb)->saddr, AF_INET), inet_rsk(req)->no_srccheck ? IP_REPLY_ARG_NOSRCCHECK : 0, ip_hdr(skb)->tos); diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c index 16df6dd44b98..968fda198376 100644 --- a/net/ipv4/tcp_timer.c +++ b/net/ipv4/tcp_timer.c @@ -264,6 +264,7 @@ void tcp_delack_timer_handler(struct sock *sk) icsk->icsk_ack.pingpong = 0; icsk->icsk_ack.ato = TCP_ATO_MIN; } + tcp_mstamp_refresh(tcp_sk(sk)); tcp_send_ack(sk); __NET_INC_STATS(sock_net(sk), LINUX_MIB_DELAYEDACKS); } @@ -632,6 +633,7 @@ static void tcp_keepalive_timer (struct timer_list *t) goto out; } + tcp_mstamp_refresh(tp); if (sk->sk_state == TCP_FIN_WAIT2 && sock_flag(sk, SOCK_DEAD)) { if (tp->linger2 >= 0) { const int tmo = tcp_fin_time(sk) - TCP_TIMEWAIT_LEN; diff --git a/net/ipv4/xfrm4_input.c b/net/ipv4/xfrm4_input.c index e50b7fea57ee..bcfc00e88756 100644 --- a/net/ipv4/xfrm4_input.c +++ b/net/ipv4/xfrm4_input.c @@ -23,6 +23,12 @@ int xfrm4_extract_input(struct xfrm_state *x, struct sk_buff *skb) return xfrm4_extract_header(skb); } +static int xfrm4_rcv_encap_finish2(struct net *net, struct sock *sk, + struct sk_buff *skb) +{ + return dst_input(skb); +} + static inline int xfrm4_rcv_encap_finish(struct net *net, struct sock *sk, struct sk_buff *skb) { @@ -33,7 +39,11 @@ static inline int xfrm4_rcv_encap_finish(struct net *net, struct sock *sk, iph->tos, skb->dev)) goto drop; } - return dst_input(skb); + + if (xfrm_trans_queue(skb, xfrm4_rcv_encap_finish2)) + goto drop; + + return 0; drop: kfree_skb(skb); return NET_RX_DROP; diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c index c26f71234b9c..c9441ca45399 100644 --- a/net/ipv6/af_inet6.c +++ b/net/ipv6/af_inet6.c @@ -210,7 +210,6 @@ lookup_protocol: np->mcast_hops = IPV6_DEFAULT_MCASTHOPS; np->mc_loop = 1; np->pmtudisc = IPV6_PMTUDISC_WANT; - np->autoflowlabel = ip6_default_np_autolabel(net); np->repflow = net->ipv6.sysctl.flowlabel_reflect; sk->sk_ipv6only = net->ipv6.sysctl.bindv6only; diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c index 4cfd8e0696fe..772695960890 100644 --- a/net/ipv6/ip6_gre.c +++ b/net/ipv6/ip6_gre.c @@ -1014,6 +1014,36 @@ static void ip6gre_tunnel_setup(struct net_device *dev) eth_random_addr(dev->perm_addr); } +#define GRE6_FEATURES (NETIF_F_SG | \ + NETIF_F_FRAGLIST | \ + NETIF_F_HIGHDMA | \ + NETIF_F_HW_CSUM) + +static void ip6gre_tnl_init_features(struct net_device *dev) +{ + struct ip6_tnl *nt = netdev_priv(dev); + + dev->features |= GRE6_FEATURES; + dev->hw_features |= GRE6_FEATURES; + + if (!(nt->parms.o_flags & TUNNEL_SEQ)) { + /* TCP offload with GRE SEQ is not supported, nor + * can we support 2 levels of outer headers requiring + * an update. + */ + if (!(nt->parms.o_flags & TUNNEL_CSUM) || + nt->encap.type == TUNNEL_ENCAP_NONE) { + dev->features |= NETIF_F_GSO_SOFTWARE; + dev->hw_features |= NETIF_F_GSO_SOFTWARE; + } + + /* Can use a lockless transmit, unless we generate + * output sequences + */ + dev->features |= NETIF_F_LLTX; + } +} + static int ip6gre_tunnel_init_common(struct net_device *dev) { struct ip6_tnl *tunnel; @@ -1048,6 +1078,8 @@ static int ip6gre_tunnel_init_common(struct net_device *dev) if (!(tunnel->parms.flags & IP6_TNL_F_IGN_ENCAP_LIMIT)) dev->mtu -= 8; + ip6gre_tnl_init_features(dev); + return 0; } @@ -1298,16 +1330,12 @@ static const struct net_device_ops ip6gre_tap_netdev_ops = { .ndo_get_iflink = ip6_tnl_get_iflink, }; -#define GRE6_FEATURES (NETIF_F_SG | \ - NETIF_F_FRAGLIST | \ - NETIF_F_HIGHDMA | \ - NETIF_F_HW_CSUM) - static void ip6gre_tap_setup(struct net_device *dev) { ether_setup(dev); + dev->max_mtu = 0; dev->netdev_ops = &ip6gre_tap_netdev_ops; dev->needs_free_netdev = true; dev->priv_destructor = ip6gre_dev_free; @@ -1382,26 +1410,6 @@ static int ip6gre_newlink(struct net *src_net, struct net_device *dev, nt->net = dev_net(dev); ip6gre_tnl_link_config(nt, !tb[IFLA_MTU]); - dev->features |= GRE6_FEATURES; - dev->hw_features |= GRE6_FEATURES; - - if (!(nt->parms.o_flags & TUNNEL_SEQ)) { - /* TCP offload with GRE SEQ is not supported, nor - * can we support 2 levels of outer headers requiring - * an update. - */ - if (!(nt->parms.o_flags & TUNNEL_CSUM) || - (nt->encap.type == TUNNEL_ENCAP_NONE)) { - dev->features |= NETIF_F_GSO_SOFTWARE; - dev->hw_features |= NETIF_F_GSO_SOFTWARE; - } - - /* Can use a lockless transmit, unless we generate - * output sequences - */ - dev->features |= NETIF_F_LLTX; - } - err = register_netdevice(dev); if (err) goto out; diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index 5110a418cc4d..f7dd51c42314 100644 --- a/net/ipv6/ip6_output.c +++ b/net/ipv6/ip6_output.c @@ -166,6 +166,14 @@ int ip6_output(struct net *net, struct sock *sk, struct sk_buff *skb) !(IP6CB(skb)->flags & IP6SKB_REROUTED)); } +static bool ip6_autoflowlabel(struct net *net, const struct ipv6_pinfo *np) +{ + if (!np->autoflowlabel_set) + return ip6_default_np_autolabel(net); + else + return np->autoflowlabel; +} + /* * xmit an sk_buff (used by TCP, SCTP and DCCP) * Note : socket lock is not held for SYNACK packets, but might be modified @@ -230,7 +238,7 @@ int ip6_xmit(const struct sock *sk, struct sk_buff *skb, struct flowi6 *fl6, hlimit = ip6_dst_hoplimit(dst); ip6_flow_hdr(hdr, tclass, ip6_make_flowlabel(net, skb, fl6->flowlabel, - np->autoflowlabel, fl6)); + ip6_autoflowlabel(net, np), fl6)); hdr->payload_len = htons(seg_len); hdr->nexthdr = proto; @@ -1626,7 +1634,7 @@ struct sk_buff *__ip6_make_skb(struct sock *sk, ip6_flow_hdr(hdr, v6_cork->tclass, ip6_make_flowlabel(net, skb, fl6->flowlabel, - np->autoflowlabel, fl6)); + ip6_autoflowlabel(net, np), fl6)); hdr->hop_limit = v6_cork->hop_limit; hdr->nexthdr = proto; hdr->saddr = fl6->saddr; diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c index db84f523656d..931c38f6ff4a 100644 --- a/net/ipv6/ip6_tunnel.c +++ b/net/ipv6/ip6_tunnel.c @@ -1123,8 +1123,13 @@ route_lookup: max_headroom += 8; mtu -= 8; } - if (mtu < IPV6_MIN_MTU) - mtu = IPV6_MIN_MTU; + if (skb->protocol == htons(ETH_P_IPV6)) { + if (mtu < IPV6_MIN_MTU) + mtu = IPV6_MIN_MTU; + } else if (mtu < 576) { + mtu = 576; + } + if (skb_dst(skb) && !t->parms.collect_md) skb_dst(skb)->ops->update_pmtu(skb_dst(skb), NULL, skb, mtu); if (skb->len - t->tun_hlen - eth_hlen > mtu && !skb_is_gso(skb)) { diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c index b9404feabd78..2d4680e0376f 100644 --- a/net/ipv6/ipv6_sockglue.c +++ b/net/ipv6/ipv6_sockglue.c @@ -886,6 +886,7 @@ pref_skip_coa: break; case IPV6_AUTOFLOWLABEL: np->autoflowlabel = valbool; + np->autoflowlabel_set = 1; retv = 0; break; case IPV6_RECVFRAGSIZE: diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c index fc6d7d143f2c..844642682b83 100644 --- a/net/ipv6/mcast.c +++ b/net/ipv6/mcast.c @@ -1682,16 +1682,16 @@ static int grec_size(struct ifmcaddr6 *pmc, int type, int gdel, int sdel) } static struct sk_buff *add_grhead(struct sk_buff *skb, struct ifmcaddr6 *pmc, - int type, struct mld2_grec **ppgr) + int type, struct mld2_grec **ppgr, unsigned int mtu) { - struct net_device *dev = pmc->idev->dev; struct mld2_report *pmr; struct mld2_grec *pgr; - if (!skb) - skb = mld_newpack(pmc->idev, dev->mtu); - if (!skb) - return NULL; + if (!skb) { + skb = mld_newpack(pmc->idev, mtu); + if (!skb) + return NULL; + } pgr = skb_put(skb, sizeof(struct mld2_grec)); pgr->grec_type = type; pgr->grec_auxwords = 0; @@ -1714,10 +1714,15 @@ static struct sk_buff *add_grec(struct sk_buff *skb, struct ifmcaddr6 *pmc, struct mld2_grec *pgr = NULL; struct ip6_sf_list *psf, *psf_next, *psf_prev, **psf_list; int scount, stotal, first, isquery, truncate; + unsigned int mtu; if (pmc->mca_flags & MAF_NOREPORT) return skb; + mtu = READ_ONCE(dev->mtu); + if (mtu < IPV6_MIN_MTU) + return skb; + isquery = type == MLD2_MODE_IS_INCLUDE || type == MLD2_MODE_IS_EXCLUDE; truncate = type == MLD2_MODE_IS_EXCLUDE || @@ -1738,7 +1743,7 @@ static struct sk_buff *add_grec(struct sk_buff *skb, struct ifmcaddr6 *pmc, AVAILABLE(skb) < grec_size(pmc, type, gdeleted, sdeleted)) { if (skb) mld_sendpack(skb); - skb = mld_newpack(idev, dev->mtu); + skb = mld_newpack(idev, mtu); } } first = 1; @@ -1774,12 +1779,12 @@ static struct sk_buff *add_grec(struct sk_buff *skb, struct ifmcaddr6 *pmc, pgr->grec_nsrcs = htons(scount); if (skb) mld_sendpack(skb); - skb = mld_newpack(idev, dev->mtu); + skb = mld_newpack(idev, mtu); first = 1; scount = 0; } if (first) { - skb = add_grhead(skb, pmc, type, &pgr); + skb = add_grhead(skb, pmc, type, &pgr, mtu); first = 0; } if (!skb) @@ -1814,7 +1819,7 @@ empty_source: mld_sendpack(skb); skb = NULL; /* add_grhead will get a new one */ } - skb = add_grhead(skb, pmc, type, &pgr); + skb = add_grhead(skb, pmc, type, &pgr, mtu); } } if (pgr) diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c index f06e25065a34..1d7ae9366335 100644 --- a/net/ipv6/netfilter/ip6_tables.c +++ b/net/ipv6/netfilter/ip6_tables.c @@ -458,7 +458,6 @@ mark_source_chains(const struct xt_table_info *newinfo, if (!xt_find_jump_offset(offsets, newpos, newinfo->number)) return 0; - e = entry0 + newpos; } else { /* ... this is a fallthru */ newpos = pos + e->next_offset; diff --git a/net/ipv6/netfilter/ip6t_MASQUERADE.c b/net/ipv6/netfilter/ip6t_MASQUERADE.c index 2b1a15846f9a..92c0047e7e33 100644 --- a/net/ipv6/netfilter/ip6t_MASQUERADE.c +++ b/net/ipv6/netfilter/ip6t_MASQUERADE.c @@ -33,13 +33,19 @@ static int masquerade_tg6_checkentry(const struct xt_tgchk_param *par) if (range->flags & NF_NAT_RANGE_MAP_IPS) return -EINVAL; - return 0; + return nf_ct_netns_get(par->net, par->family); +} + +static void masquerade_tg6_destroy(const struct xt_tgdtor_param *par) +{ + nf_ct_netns_put(par->net, par->family); } static struct xt_target masquerade_tg6_reg __read_mostly = { .name = "MASQUERADE", .family = NFPROTO_IPV6, .checkentry = masquerade_tg6_checkentry, + .destroy = masquerade_tg6_destroy, .target = masquerade_tg6, .targetsize = sizeof(struct nf_nat_range), .table = "nat", diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 7a8d1500d374..0458b761f3c5 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -2336,6 +2336,7 @@ struct dst_entry *icmp6_dst_alloc(struct net_device *dev, } rt->dst.flags |= DST_HOST; + rt->dst.input = ip6_input; rt->dst.output = ip6_output; rt->rt6i_gateway = fl6->daddr; rt->rt6i_dst.addr = fl6->daddr; @@ -4297,19 +4298,13 @@ static int inet6_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr *nlh, if (!ipv6_addr_any(&fl6.saddr)) flags |= RT6_LOOKUP_F_HAS_SADDR; - if (!fibmatch) - dst = ip6_route_input_lookup(net, dev, &fl6, flags); - else - dst = ip6_route_lookup(net, &fl6, 0); + dst = ip6_route_input_lookup(net, dev, &fl6, flags); rcu_read_unlock(); } else { fl6.flowi6_oif = oif; - if (!fibmatch) - dst = ip6_route_output(net, NULL, &fl6); - else - dst = ip6_route_lookup(net, &fl6, 0); + dst = ip6_route_output(net, NULL, &fl6); } @@ -4326,6 +4321,15 @@ static int inet6_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr *nlh, goto errout; } + if (fibmatch && rt->dst.from) { + struct rt6_info *ort = container_of(rt->dst.from, + struct rt6_info, dst); + + dst_hold(&ort->dst); + ip6_rt_put(rt); + rt = ort; + } + skb = alloc_skb(NLMSG_GOODSIZE, GFP_KERNEL); if (!skb) { ip6_rt_put(rt); diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index 1f04ec0e4a7a..7178476b3d2f 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -994,7 +994,7 @@ static void tcp_v6_reqsk_send_ack(const struct sock *sk, struct sk_buff *skb, req->rsk_rcv_wnd >> inet_rsk(req)->rcv_wscale, tcp_time_stamp_raw() + tcp_rsk(req)->ts_off, req->ts_recent, sk->sk_bound_dev_if, - tcp_v6_md5_do_lookup(sk, &ipv6_hdr(skb)->daddr), + tcp_v6_md5_do_lookup(sk, &ipv6_hdr(skb)->saddr), 0, 0); } diff --git a/net/ipv6/xfrm6_input.c b/net/ipv6/xfrm6_input.c index fe04e23af986..841f4a07438e 100644 --- a/net/ipv6/xfrm6_input.c +++ b/net/ipv6/xfrm6_input.c @@ -32,6 +32,14 @@ int xfrm6_rcv_spi(struct sk_buff *skb, int nexthdr, __be32 spi, } EXPORT_SYMBOL(xfrm6_rcv_spi); +static int xfrm6_transport_finish2(struct net *net, struct sock *sk, + struct sk_buff *skb) +{ + if (xfrm_trans_queue(skb, ip6_rcv_finish)) + __kfree_skb(skb); + return -1; +} + int xfrm6_transport_finish(struct sk_buff *skb, int async) { struct xfrm_offload *xo = xfrm_offload(skb); @@ -56,7 +64,7 @@ int xfrm6_transport_finish(struct sk_buff *skb, int async) NF_HOOK(NFPROTO_IPV6, NF_INET_PRE_ROUTING, dev_net(skb->dev), NULL, skb, skb->dev, NULL, - ip6_rcv_finish); + xfrm6_transport_finish2); return -1; } diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c index 167f83b853e6..1621b6ab17ba 100644 --- a/net/mac80211/ht.c +++ b/net/mac80211/ht.c @@ -291,16 +291,15 @@ void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta, int i; mutex_lock(&sta->ampdu_mlme.mtx); - for (i = 0; i < IEEE80211_NUM_TIDS; i++) { + for (i = 0; i < IEEE80211_NUM_TIDS; i++) ___ieee80211_stop_rx_ba_session(sta, i, WLAN_BACK_RECIPIENT, WLAN_REASON_QSTA_LEAVE_QBSS, reason != AGG_STOP_DESTROY_STA && reason != AGG_STOP_PEER_REQUEST); - } - mutex_unlock(&sta->ampdu_mlme.mtx); for (i = 0; i < IEEE80211_NUM_TIDS; i++) ___ieee80211_stop_tx_ba_session(sta, i, reason); + mutex_unlock(&sta->ampdu_mlme.mtx); /* stopping might queue the work again - so cancel only afterwards */ cancel_work_sync(&sta->ampdu_mlme.work); diff --git a/net/netfilter/nf_conntrack_h323_asn1.c b/net/netfilter/nf_conntrack_h323_asn1.c index cf1bf2605c10..dc6347342e34 100644 --- a/net/netfilter/nf_conntrack_h323_asn1.c +++ b/net/netfilter/nf_conntrack_h323_asn1.c @@ -103,7 +103,6 @@ struct bitstr { #define INC_BIT(bs) if((++(bs)->bit)>7){(bs)->cur++;(bs)->bit=0;} #define INC_BITS(bs,b) if(((bs)->bit+=(b))>7){(bs)->cur+=(bs)->bit>>3;(bs)->bit&=7;} #define BYTE_ALIGN(bs) if((bs)->bit){(bs)->cur++;(bs)->bit=0;} -#define CHECK_BOUND(bs,n) if((bs)->cur+(n)>(bs)->end)return(H323_ERROR_BOUND) static unsigned int get_len(struct bitstr *bs); static unsigned int get_bit(struct bitstr *bs); static unsigned int get_bits(struct bitstr *bs, unsigned int b); @@ -165,6 +164,19 @@ static unsigned int get_len(struct bitstr *bs) return v; } +static int nf_h323_error_boundary(struct bitstr *bs, size_t bytes, size_t bits) +{ + bits += bs->bit; + bytes += bits / BITS_PER_BYTE; + if (bits % BITS_PER_BYTE > 0) + bytes++; + + if (*bs->cur + bytes > *bs->end) + return 1; + + return 0; +} + /****************************************************************************/ static unsigned int get_bit(struct bitstr *bs) { @@ -279,8 +291,8 @@ static int decode_bool(struct bitstr *bs, const struct field_t *f, PRINT("%*.s%s\n", level * TAB_SIZE, " ", f->name); INC_BIT(bs); - - CHECK_BOUND(bs, 0); + if (nf_h323_error_boundary(bs, 0, 0)) + return H323_ERROR_BOUND; return H323_ERROR_NONE; } @@ -293,11 +305,14 @@ static int decode_oid(struct bitstr *bs, const struct field_t *f, PRINT("%*.s%s\n", level * TAB_SIZE, " ", f->name); BYTE_ALIGN(bs); - CHECK_BOUND(bs, 1); + if (nf_h323_error_boundary(bs, 1, 0)) + return H323_ERROR_BOUND; + len = *bs->cur++; bs->cur += len; + if (nf_h323_error_boundary(bs, 0, 0)) + return H323_ERROR_BOUND; - CHECK_BOUND(bs, 0); return H323_ERROR_NONE; } @@ -319,6 +334,8 @@ static int decode_int(struct bitstr *bs, const struct field_t *f, bs->cur += 2; break; case CONS: /* 64K < Range < 4G */ + if (nf_h323_error_boundary(bs, 0, 2)) + return H323_ERROR_BOUND; len = get_bits(bs, 2) + 1; BYTE_ALIGN(bs); if (base && (f->attr & DECODE)) { /* timeToLive */ @@ -330,7 +347,8 @@ static int decode_int(struct bitstr *bs, const struct field_t *f, break; case UNCO: BYTE_ALIGN(bs); - CHECK_BOUND(bs, 2); + if (nf_h323_error_boundary(bs, 2, 0)) + return H323_ERROR_BOUND; len = get_len(bs); bs->cur += len; break; @@ -341,7 +359,8 @@ static int decode_int(struct bitstr *bs, const struct field_t *f, PRINT("\n"); - CHECK_BOUND(bs, 0); + if (nf_h323_error_boundary(bs, 0, 0)) + return H323_ERROR_BOUND; return H323_ERROR_NONE; } @@ -357,7 +376,8 @@ static int decode_enum(struct bitstr *bs, const struct field_t *f, INC_BITS(bs, f->sz); } - CHECK_BOUND(bs, 0); + if (nf_h323_error_boundary(bs, 0, 0)) + return H323_ERROR_BOUND; return H323_ERROR_NONE; } @@ -375,12 +395,14 @@ static int decode_bitstr(struct bitstr *bs, const struct field_t *f, len = f->lb; break; case WORD: /* 2-byte length */ - CHECK_BOUND(bs, 2); + if (nf_h323_error_boundary(bs, 2, 0)) + return H323_ERROR_BOUND; len = (*bs->cur++) << 8; len += (*bs->cur++) + f->lb; break; case SEMI: - CHECK_BOUND(bs, 2); + if (nf_h323_error_boundary(bs, 2, 0)) + return H323_ERROR_BOUND; len = get_len(bs); break; default: @@ -391,7 +413,8 @@ static int decode_bitstr(struct bitstr *bs, const struct field_t *f, bs->cur += len >> 3; bs->bit = len & 7; - CHECK_BOUND(bs, 0); + if (nf_h323_error_boundary(bs, 0, 0)) + return H323_ERROR_BOUND; return H323_ERROR_NONE; } @@ -404,12 +427,15 @@ static int decode_numstr(struct bitstr *bs, const struct field_t *f, PRINT("%*.s%s\n", level * TAB_SIZE, " ", f->name); /* 2 <= Range <= 255 */ + if (nf_h323_error_boundary(bs, 0, f->sz)) + return H323_ERROR_BOUND; len = get_bits(bs, f->sz) + f->lb; BYTE_ALIGN(bs); INC_BITS(bs, (len << 2)); - CHECK_BOUND(bs, 0); + if (nf_h323_error_boundary(bs, 0, 0)) + return H323_ERROR_BOUND; return H323_ERROR_NONE; } @@ -440,15 +466,19 @@ static int decode_octstr(struct bitstr *bs, const struct field_t *f, break; case BYTE: /* Range == 256 */ BYTE_ALIGN(bs); - CHECK_BOUND(bs, 1); + if (nf_h323_error_boundary(bs, 1, 0)) + return H323_ERROR_BOUND; len = (*bs->cur++) + f->lb; break; case SEMI: BYTE_ALIGN(bs); - CHECK_BOUND(bs, 2); + if (nf_h323_error_boundary(bs, 2, 0)) + return H323_ERROR_BOUND; len = get_len(bs) + f->lb; break; default: /* 2 <= Range <= 255 */ + if (nf_h323_error_boundary(bs, 0, f->sz)) + return H323_ERROR_BOUND; len = get_bits(bs, f->sz) + f->lb; BYTE_ALIGN(bs); break; @@ -458,7 +488,8 @@ static int decode_octstr(struct bitstr *bs, const struct field_t *f, PRINT("\n"); - CHECK_BOUND(bs, 0); + if (nf_h323_error_boundary(bs, 0, 0)) + return H323_ERROR_BOUND; return H323_ERROR_NONE; } @@ -473,10 +504,13 @@ static int decode_bmpstr(struct bitstr *bs, const struct field_t *f, switch (f->sz) { case BYTE: /* Range == 256 */ BYTE_ALIGN(bs); - CHECK_BOUND(bs, 1); + if (nf_h323_error_boundary(bs, 1, 0)) + return H323_ERROR_BOUND; len = (*bs->cur++) + f->lb; break; default: /* 2 <= Range <= 255 */ + if (nf_h323_error_boundary(bs, 0, f->sz)) + return H323_ERROR_BOUND; len = get_bits(bs, f->sz) + f->lb; BYTE_ALIGN(bs); break; @@ -484,7 +518,8 @@ static int decode_bmpstr(struct bitstr *bs, const struct field_t *f, bs->cur += len << 1; - CHECK_BOUND(bs, 0); + if (nf_h323_error_boundary(bs, 0, 0)) + return H323_ERROR_BOUND; return H323_ERROR_NONE; } @@ -503,9 +538,13 @@ static int decode_seq(struct bitstr *bs, const struct field_t *f, base = (base && (f->attr & DECODE)) ? base + f->offset : NULL; /* Extensible? */ + if (nf_h323_error_boundary(bs, 0, 1)) + return H323_ERROR_BOUND; ext = (f->attr & EXT) ? get_bit(bs) : 0; /* Get fields bitmap */ + if (nf_h323_error_boundary(bs, 0, f->sz)) + return H323_ERROR_BOUND; bmp = get_bitmap(bs, f->sz); if (base) *(unsigned int *)base = bmp; @@ -525,9 +564,11 @@ static int decode_seq(struct bitstr *bs, const struct field_t *f, /* Decode */ if (son->attr & OPEN) { /* Open field */ - CHECK_BOUND(bs, 2); + if (nf_h323_error_boundary(bs, 2, 0)) + return H323_ERROR_BOUND; len = get_len(bs); - CHECK_BOUND(bs, len); + if (nf_h323_error_boundary(bs, len, 0)) + return H323_ERROR_BOUND; if (!base || !(son->attr & DECODE)) { PRINT("%*.s%s\n", (level + 1) * TAB_SIZE, " ", son->name); @@ -555,8 +596,11 @@ static int decode_seq(struct bitstr *bs, const struct field_t *f, return H323_ERROR_NONE; /* Get the extension bitmap */ + if (nf_h323_error_boundary(bs, 0, 7)) + return H323_ERROR_BOUND; bmp2_len = get_bits(bs, 7) + 1; - CHECK_BOUND(bs, (bmp2_len + 7) >> 3); + if (nf_h323_error_boundary(bs, 0, bmp2_len)) + return H323_ERROR_BOUND; bmp2 = get_bitmap(bs, bmp2_len); bmp |= bmp2 >> f->sz; if (base) @@ -567,9 +611,11 @@ static int decode_seq(struct bitstr *bs, const struct field_t *f, for (opt = 0; opt < bmp2_len; opt++, i++, son++) { /* Check Range */ if (i >= f->ub) { /* Newer Version? */ - CHECK_BOUND(bs, 2); + if (nf_h323_error_boundary(bs, 2, 0)) + return H323_ERROR_BOUND; len = get_len(bs); - CHECK_BOUND(bs, len); + if (nf_h323_error_boundary(bs, len, 0)) + return H323_ERROR_BOUND; bs->cur += len; continue; } @@ -583,9 +629,11 @@ static int decode_seq(struct bitstr *bs, const struct field_t *f, if (!((0x80000000 >> opt) & bmp2)) /* Not present */ continue; - CHECK_BOUND(bs, 2); + if (nf_h323_error_boundary(bs, 2, 0)) + return H323_ERROR_BOUND; len = get_len(bs); - CHECK_BOUND(bs, len); + if (nf_h323_error_boundary(bs, len, 0)) + return H323_ERROR_BOUND; if (!base || !(son->attr & DECODE)) { PRINT("%*.s%s\n", (level + 1) * TAB_SIZE, " ", son->name); @@ -623,22 +671,27 @@ static int decode_seqof(struct bitstr *bs, const struct field_t *f, switch (f->sz) { case BYTE: BYTE_ALIGN(bs); - CHECK_BOUND(bs, 1); + if (nf_h323_error_boundary(bs, 1, 0)) + return H323_ERROR_BOUND; count = *bs->cur++; break; case WORD: BYTE_ALIGN(bs); - CHECK_BOUND(bs, 2); + if (nf_h323_error_boundary(bs, 2, 0)) + return H323_ERROR_BOUND; count = *bs->cur++; count <<= 8; count += *bs->cur++; break; case SEMI: BYTE_ALIGN(bs); - CHECK_BOUND(bs, 2); + if (nf_h323_error_boundary(bs, 2, 0)) + return H323_ERROR_BOUND; count = get_len(bs); break; default: + if (nf_h323_error_boundary(bs, 0, f->sz)) + return H323_ERROR_BOUND; count = get_bits(bs, f->sz); break; } @@ -658,8 +711,11 @@ static int decode_seqof(struct bitstr *bs, const struct field_t *f, for (i = 0; i < count; i++) { if (son->attr & OPEN) { BYTE_ALIGN(bs); + if (nf_h323_error_boundary(bs, 2, 0)) + return H323_ERROR_BOUND; len = get_len(bs); - CHECK_BOUND(bs, len); + if (nf_h323_error_boundary(bs, len, 0)) + return H323_ERROR_BOUND; if (!base || !(son->attr & DECODE)) { PRINT("%*.s%s\n", (level + 1) * TAB_SIZE, " ", son->name); @@ -710,11 +766,17 @@ static int decode_choice(struct bitstr *bs, const struct field_t *f, base = (base && (f->attr & DECODE)) ? base + f->offset : NULL; /* Decode the choice index number */ + if (nf_h323_error_boundary(bs, 0, 1)) + return H323_ERROR_BOUND; if ((f->attr & EXT) && get_bit(bs)) { ext = 1; + if (nf_h323_error_boundary(bs, 0, 7)) + return H323_ERROR_BOUND; type = get_bits(bs, 7) + f->lb; } else { ext = 0; + if (nf_h323_error_boundary(bs, 0, f->sz)) + return H323_ERROR_BOUND; type = get_bits(bs, f->sz); if (type >= f->lb) return H323_ERROR_RANGE; @@ -727,8 +789,11 @@ static int decode_choice(struct bitstr *bs, const struct field_t *f, /* Check Range */ if (type >= f->ub) { /* Newer version? */ BYTE_ALIGN(bs); + if (nf_h323_error_boundary(bs, 2, 0)) + return H323_ERROR_BOUND; len = get_len(bs); - CHECK_BOUND(bs, len); + if (nf_h323_error_boundary(bs, len, 0)) + return H323_ERROR_BOUND; bs->cur += len; return H323_ERROR_NONE; } @@ -742,8 +807,11 @@ static int decode_choice(struct bitstr *bs, const struct field_t *f, if (ext || (son->attr & OPEN)) { BYTE_ALIGN(bs); + if (nf_h323_error_boundary(bs, len, 0)) + return H323_ERROR_BOUND; len = get_len(bs); - CHECK_BOUND(bs, len); + if (nf_h323_error_boundary(bs, len, 0)) + return H323_ERROR_BOUND; if (!base || !(son->attr & DECODE)) { PRINT("%*.s%s\n", (level + 1) * TAB_SIZE, " ", son->name); diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c index 59c08997bfdf..382d49792f42 100644 --- a/net/netfilter/nf_conntrack_netlink.c +++ b/net/netfilter/nf_conntrack_netlink.c @@ -45,7 +45,6 @@ #include <net/netfilter/nf_conntrack_zones.h> #include <net/netfilter/nf_conntrack_timestamp.h> #include <net/netfilter/nf_conntrack_labels.h> -#include <net/netfilter/nf_conntrack_seqadj.h> #include <net/netfilter/nf_conntrack_synproxy.h> #ifdef CONFIG_NF_NAT_NEEDED #include <net/netfilter/nf_nat_core.h> @@ -1566,9 +1565,11 @@ static int ctnetlink_change_helper(struct nf_conn *ct, static int ctnetlink_change_timeout(struct nf_conn *ct, const struct nlattr * const cda[]) { - u_int32_t timeout = ntohl(nla_get_be32(cda[CTA_TIMEOUT])); + u64 timeout = (u64)ntohl(nla_get_be32(cda[CTA_TIMEOUT])) * HZ; - ct->timeout = nfct_time_stamp + timeout * HZ; + if (timeout > INT_MAX) + timeout = INT_MAX; + ct->timeout = nfct_time_stamp + (u32)timeout; if (test_bit(IPS_DYING_BIT, &ct->status)) return -ETIME; @@ -1768,6 +1769,7 @@ ctnetlink_create_conntrack(struct net *net, int err = -EINVAL; struct nf_conntrack_helper *helper; struct nf_conn_tstamp *tstamp; + u64 timeout; ct = nf_conntrack_alloc(net, zone, otuple, rtuple, GFP_ATOMIC); if (IS_ERR(ct)) @@ -1776,7 +1778,10 @@ ctnetlink_create_conntrack(struct net *net, if (!cda[CTA_TIMEOUT]) goto err1; - ct->timeout = nfct_time_stamp + ntohl(nla_get_be32(cda[CTA_TIMEOUT])) * HZ; + timeout = (u64)ntohl(nla_get_be32(cda[CTA_TIMEOUT])) * HZ; + if (timeout > INT_MAX) + timeout = INT_MAX; + ct->timeout = (u32)timeout + nfct_time_stamp; rcu_read_lock(); if (cda[CTA_HELP]) { diff --git a/net/netfilter/nf_conntrack_proto_tcp.c b/net/netfilter/nf_conntrack_proto_tcp.c index b12fc07111d0..37ef35b861f2 100644 --- a/net/netfilter/nf_conntrack_proto_tcp.c +++ b/net/netfilter/nf_conntrack_proto_tcp.c @@ -1039,6 +1039,9 @@ static int tcp_packet(struct nf_conn *ct, IP_CT_TCP_FLAG_DATA_UNACKNOWLEDGED && timeouts[new_state] > timeouts[TCP_CONNTRACK_UNACK]) timeout = timeouts[TCP_CONNTRACK_UNACK]; + else if (ct->proto.tcp.last_win == 0 && + timeouts[new_state] > timeouts[TCP_CONNTRACK_RETRANS]) + timeout = timeouts[TCP_CONNTRACK_RETRANS]; else timeout = timeouts[new_state]; spin_unlock_bh(&ct->lock); diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c index d8327b43e4dc..10798b357481 100644 --- a/net/netfilter/nf_tables_api.c +++ b/net/netfilter/nf_tables_api.c @@ -5847,6 +5847,12 @@ static int __net_init nf_tables_init_net(struct net *net) return 0; } +static void __net_exit nf_tables_exit_net(struct net *net) +{ + WARN_ON_ONCE(!list_empty(&net->nft.af_info)); + WARN_ON_ONCE(!list_empty(&net->nft.commit_list)); +} + int __nft_release_basechain(struct nft_ctx *ctx) { struct nft_rule *rule, *nr; @@ -5917,6 +5923,7 @@ static void __nft_release_afinfo(struct net *net, struct nft_af_info *afi) static struct pernet_operations nf_tables_net_ops = { .init = nf_tables_init_net, + .exit = nf_tables_exit_net, }; static int __init nf_tables_module_init(void) diff --git a/net/netfilter/nfnetlink_cthelper.c b/net/netfilter/nfnetlink_cthelper.c index 41628b393673..d33ce6d5ebce 100644 --- a/net/netfilter/nfnetlink_cthelper.c +++ b/net/netfilter/nfnetlink_cthelper.c @@ -17,6 +17,7 @@ #include <linux/types.h> #include <linux/list.h> #include <linux/errno.h> +#include <linux/capability.h> #include <net/netlink.h> #include <net/sock.h> @@ -407,6 +408,9 @@ static int nfnl_cthelper_new(struct net *net, struct sock *nfnl, struct nfnl_cthelper *nlcth; int ret = 0; + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + if (!tb[NFCTH_NAME] || !tb[NFCTH_TUPLE]) return -EINVAL; @@ -611,6 +615,9 @@ static int nfnl_cthelper_get(struct net *net, struct sock *nfnl, struct nfnl_cthelper *nlcth; bool tuple_set = false; + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + if (nlh->nlmsg_flags & NLM_F_DUMP) { struct netlink_dump_control c = { .dump = nfnl_cthelper_dump_table, @@ -678,6 +685,9 @@ static int nfnl_cthelper_del(struct net *net, struct sock *nfnl, struct nfnl_cthelper *nlcth, *n; int j = 0, ret; + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + if (tb[NFCTH_NAME]) helper_name = nla_data(tb[NFCTH_NAME]); diff --git a/net/netfilter/nfnetlink_log.c b/net/netfilter/nfnetlink_log.c index e5afab86381c..e955bec0acc6 100644 --- a/net/netfilter/nfnetlink_log.c +++ b/net/netfilter/nfnetlink_log.c @@ -1093,10 +1093,15 @@ static int __net_init nfnl_log_net_init(struct net *net) static void __net_exit nfnl_log_net_exit(struct net *net) { + struct nfnl_log_net *log = nfnl_log_pernet(net); + unsigned int i; + #ifdef CONFIG_PROC_FS remove_proc_entry("nfnetlink_log", net->nf.proc_netfilter); #endif nf_log_unset(net, &nfulnl_logger); + for (i = 0; i < INSTANCE_BUCKETS; i++) + WARN_ON_ONCE(!hlist_empty(&log->instance_table[i])); } static struct pernet_operations nfnl_log_net_ops = { diff --git a/net/netfilter/nfnetlink_queue.c b/net/netfilter/nfnetlink_queue.c index a16356cacec3..c09b36755ed7 100644 --- a/net/netfilter/nfnetlink_queue.c +++ b/net/netfilter/nfnetlink_queue.c @@ -1512,10 +1512,15 @@ static int __net_init nfnl_queue_net_init(struct net *net) static void __net_exit nfnl_queue_net_exit(struct net *net) { + struct nfnl_queue_net *q = nfnl_queue_pernet(net); + unsigned int i; + nf_unregister_queue_handler(net); #ifdef CONFIG_PROC_FS remove_proc_entry("nfnetlink_queue", net->nf.proc_netfilter); #endif + for (i = 0; i < INSTANCE_BUCKETS; i++) + WARN_ON_ONCE(!hlist_empty(&q->instance_table[i])); } static void nfnl_queue_net_exit_batch(struct list_head *net_exit_list) diff --git a/net/netfilter/nft_exthdr.c b/net/netfilter/nft_exthdr.c index a0a93d987a3b..47ec1046ad11 100644 --- a/net/netfilter/nft_exthdr.c +++ b/net/netfilter/nft_exthdr.c @@ -214,6 +214,8 @@ static const struct nla_policy nft_exthdr_policy[NFTA_EXTHDR_MAX + 1] = { [NFTA_EXTHDR_OFFSET] = { .type = NLA_U32 }, [NFTA_EXTHDR_LEN] = { .type = NLA_U32 }, [NFTA_EXTHDR_FLAGS] = { .type = NLA_U32 }, + [NFTA_EXTHDR_OP] = { .type = NLA_U32 }, + [NFTA_EXTHDR_SREG] = { .type = NLA_U32 }, }; static int nft_exthdr_init(const struct nft_ctx *ctx, diff --git a/net/netfilter/x_tables.c b/net/netfilter/x_tables.c index a77dd514297c..55802e97f906 100644 --- a/net/netfilter/x_tables.c +++ b/net/netfilter/x_tables.c @@ -1729,8 +1729,17 @@ static int __net_init xt_net_init(struct net *net) return 0; } +static void __net_exit xt_net_exit(struct net *net) +{ + int i; + + for (i = 0; i < NFPROTO_NUMPROTO; i++) + WARN_ON_ONCE(!list_empty(&net->xt.tables[i])); +} + static struct pernet_operations xt_net_ops = { .init = xt_net_init, + .exit = xt_net_exit, }; static int __init xt_init(void) diff --git a/net/netfilter/xt_bpf.c b/net/netfilter/xt_bpf.c index 041da0d9c06f..1f7fbd3c7e5a 100644 --- a/net/netfilter/xt_bpf.c +++ b/net/netfilter/xt_bpf.c @@ -27,6 +27,9 @@ static int __bpf_mt_check_bytecode(struct sock_filter *insns, __u16 len, { struct sock_fprog_kern program; + if (len > XT_BPF_MAX_NUM_INSTR) + return -EINVAL; + program.len = len; program.filter = insns; @@ -55,6 +58,9 @@ static int __bpf_mt_check_path(const char *path, struct bpf_prog **ret) mm_segment_t oldfs = get_fs(); int retval, fd; + if (strnlen(path, XT_BPF_PATH_MAX) == XT_BPF_PATH_MAX) + return -EINVAL; + set_fs(KERNEL_DS); fd = bpf_obj_get_user(path, 0); set_fs(oldfs); diff --git a/net/netfilter/xt_osf.c b/net/netfilter/xt_osf.c index 36e14b1f061d..a34f314a8c23 100644 --- a/net/netfilter/xt_osf.c +++ b/net/netfilter/xt_osf.c @@ -19,6 +19,7 @@ #include <linux/module.h> #include <linux/kernel.h> +#include <linux/capability.h> #include <linux/if.h> #include <linux/inetdevice.h> #include <linux/ip.h> @@ -70,6 +71,9 @@ static int xt_osf_add_callback(struct net *net, struct sock *ctnl, struct xt_osf_finger *kf = NULL, *sf; int err = 0; + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + if (!osf_attrs[OSF_ATTR_FINGER]) return -EINVAL; @@ -115,6 +119,9 @@ static int xt_osf_remove_callback(struct net *net, struct sock *ctnl, struct xt_osf_finger *sf; int err = -ENOENT; + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + if (!osf_attrs[OSF_ATTR_FINGER]) return -EINVAL; diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c index b9e0ee4e22f5..79cc1bf36e4a 100644 --- a/net/netlink/af_netlink.c +++ b/net/netlink/af_netlink.c @@ -253,6 +253,9 @@ static int __netlink_deliver_tap_skb(struct sk_buff *skb, struct sock *sk = skb->sk; int ret = -ENOMEM; + if (!net_eq(dev_net(dev), sock_net(sk))) + return 0; + dev_hold(dev); if (is_vmalloc_addr(skb->head)) diff --git a/net/openvswitch/flow.c b/net/openvswitch/flow.c index dbe2379329c5..f039064ce922 100644 --- a/net/openvswitch/flow.c +++ b/net/openvswitch/flow.c @@ -579,6 +579,7 @@ static int key_extract(struct sk_buff *skb, struct sw_flow_key *key) return -EINVAL; skb_reset_network_header(skb); + key->eth.type = skb->protocol; } else { eth = eth_hdr(skb); ether_addr_copy(key->eth.src, eth->h_source); @@ -592,15 +593,23 @@ static int key_extract(struct sk_buff *skb, struct sw_flow_key *key) if (unlikely(parse_vlan(skb, key))) return -ENOMEM; - skb->protocol = parse_ethertype(skb); - if (unlikely(skb->protocol == htons(0))) + key->eth.type = parse_ethertype(skb); + if (unlikely(key->eth.type == htons(0))) return -ENOMEM; + /* Multiple tagged packets need to retain TPID to satisfy + * skb_vlan_pop(), which will later shift the ethertype into + * skb->protocol. + */ + if (key->eth.cvlan.tci & htons(VLAN_TAG_PRESENT)) + skb->protocol = key->eth.cvlan.tpid; + else + skb->protocol = key->eth.type; + skb_reset_network_header(skb); __skb_push(skb, skb->data - skb_mac_header(skb)); } skb_reset_mac_len(skb); - key->eth.type = skb->protocol; /* Network layer. */ if (key->eth.type == htons(ETH_P_IP)) { diff --git a/net/rds/send.c b/net/rds/send.c index b52cdc8ae428..f72466c63f0c 100644 --- a/net/rds/send.c +++ b/net/rds/send.c @@ -1009,6 +1009,9 @@ static int rds_rdma_bytes(struct msghdr *msg, size_t *rdma_bytes) continue; if (cmsg->cmsg_type == RDS_CMSG_RDMA_ARGS) { + if (cmsg->cmsg_len < + CMSG_LEN(sizeof(struct rds_rdma_args))) + return -EINVAL; args = CMSG_DATA(cmsg); *rdma_bytes += args->remote_vec.bytes; } diff --git a/net/sched/act_meta_mark.c b/net/sched/act_meta_mark.c index 1e3f10e5da99..6445184b2759 100644 --- a/net/sched/act_meta_mark.c +++ b/net/sched/act_meta_mark.c @@ -22,7 +22,6 @@ #include <net/pkt_sched.h> #include <uapi/linux/tc_act/tc_ife.h> #include <net/tc_act/tc_ife.h> -#include <linux/rtnetlink.h> static int skbmark_encode(struct sk_buff *skb, void *skbdata, struct tcf_meta_info *e) diff --git a/net/sched/act_meta_skbtcindex.c b/net/sched/act_meta_skbtcindex.c index 2ea1f26c9e96..7221437ca3a6 100644 --- a/net/sched/act_meta_skbtcindex.c +++ b/net/sched/act_meta_skbtcindex.c @@ -22,7 +22,6 @@ #include <net/pkt_sched.h> #include <uapi/linux/tc_act/tc_ife.h> #include <net/tc_act/tc_ife.h> -#include <linux/rtnetlink.h> static int skbtcindex_encode(struct sk_buff *skb, void *skbdata, struct tcf_meta_info *e) diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c index ddcf04b4ab43..b9d63d2246e6 100644 --- a/net/sched/cls_api.c +++ b/net/sched/cls_api.c @@ -23,7 +23,6 @@ #include <linux/skbuff.h> #include <linux/init.h> #include <linux/kmod.h> -#include <linux/err.h> #include <linux/slab.h> #include <net/net_namespace.h> #include <net/sock.h> @@ -352,6 +351,8 @@ void tcf_block_put_ext(struct tcf_block *block, struct Qdisc *q, { struct tcf_chain *chain; + if (!block) + return; /* Hold a refcnt for all chains, except 0, so that they don't disappear * while we are iterating. */ diff --git a/net/sched/cls_bpf.c b/net/sched/cls_bpf.c index 6fe798c2df1a..8d78e7f4ecc3 100644 --- a/net/sched/cls_bpf.c +++ b/net/sched/cls_bpf.c @@ -42,7 +42,6 @@ struct cls_bpf_prog { struct list_head link; struct tcf_result res; bool exts_integrated; - bool offloaded; u32 gen_flags; struct tcf_exts exts; u32 handle; @@ -148,33 +147,37 @@ static bool cls_bpf_is_ebpf(const struct cls_bpf_prog *prog) } static int cls_bpf_offload_cmd(struct tcf_proto *tp, struct cls_bpf_prog *prog, - enum tc_clsbpf_command cmd) + struct cls_bpf_prog *oldprog) { - bool addorrep = cmd == TC_CLSBPF_ADD || cmd == TC_CLSBPF_REPLACE; struct tcf_block *block = tp->chain->block; - bool skip_sw = tc_skip_sw(prog->gen_flags); struct tc_cls_bpf_offload cls_bpf = {}; + struct cls_bpf_prog *obj; + bool skip_sw; int err; + skip_sw = prog && tc_skip_sw(prog->gen_flags); + obj = prog ?: oldprog; + tc_cls_common_offload_init(&cls_bpf.common, tp); - cls_bpf.command = cmd; - cls_bpf.exts = &prog->exts; - cls_bpf.prog = prog->filter; - cls_bpf.name = prog->bpf_name; - cls_bpf.exts_integrated = prog->exts_integrated; - cls_bpf.gen_flags = prog->gen_flags; + cls_bpf.command = TC_CLSBPF_OFFLOAD; + cls_bpf.exts = &obj->exts; + cls_bpf.prog = prog ? prog->filter : NULL; + cls_bpf.oldprog = oldprog ? oldprog->filter : NULL; + cls_bpf.name = obj->bpf_name; + cls_bpf.exts_integrated = obj->exts_integrated; + cls_bpf.gen_flags = obj->gen_flags; err = tc_setup_cb_call(block, NULL, TC_SETUP_CLSBPF, &cls_bpf, skip_sw); - if (addorrep) { + if (prog) { if (err < 0) { - cls_bpf_offload_cmd(tp, prog, TC_CLSBPF_DESTROY); + cls_bpf_offload_cmd(tp, oldprog, prog); return err; } else if (err > 0) { prog->gen_flags |= TCA_CLS_FLAGS_IN_HW; } } - if (addorrep && skip_sw && !(prog->gen_flags & TCA_CLS_FLAGS_IN_HW)) + if (prog && skip_sw && !(prog->gen_flags & TCA_CLS_FLAGS_IN_HW)) return -EINVAL; return 0; @@ -183,38 +186,17 @@ static int cls_bpf_offload_cmd(struct tcf_proto *tp, struct cls_bpf_prog *prog, static int cls_bpf_offload(struct tcf_proto *tp, struct cls_bpf_prog *prog, struct cls_bpf_prog *oldprog) { - struct cls_bpf_prog *obj = prog; - enum tc_clsbpf_command cmd; - bool skip_sw; - int ret; - - skip_sw = tc_skip_sw(prog->gen_flags) || - (oldprog && tc_skip_sw(oldprog->gen_flags)); - - if (oldprog && oldprog->offloaded) { - if (!tc_skip_hw(prog->gen_flags)) { - cmd = TC_CLSBPF_REPLACE; - } else if (!tc_skip_sw(prog->gen_flags)) { - obj = oldprog; - cmd = TC_CLSBPF_DESTROY; - } else { - return -EINVAL; - } - } else { - if (tc_skip_hw(prog->gen_flags)) - return skip_sw ? -EINVAL : 0; - cmd = TC_CLSBPF_ADD; - } - - ret = cls_bpf_offload_cmd(tp, obj, cmd); - if (ret) - return ret; + if (prog && oldprog && prog->gen_flags != oldprog->gen_flags) + return -EINVAL; - obj->offloaded = true; - if (oldprog) - oldprog->offloaded = false; + if (prog && tc_skip_hw(prog->gen_flags)) + prog = NULL; + if (oldprog && tc_skip_hw(oldprog->gen_flags)) + oldprog = NULL; + if (!prog && !oldprog) + return 0; - return 0; + return cls_bpf_offload_cmd(tp, prog, oldprog); } static void cls_bpf_stop_offload(struct tcf_proto *tp, @@ -222,25 +204,26 @@ static void cls_bpf_stop_offload(struct tcf_proto *tp, { int err; - if (!prog->offloaded) - return; - - err = cls_bpf_offload_cmd(tp, prog, TC_CLSBPF_DESTROY); - if (err) { + err = cls_bpf_offload_cmd(tp, NULL, prog); + if (err) pr_err("Stopping hardware offload failed: %d\n", err); - return; - } - - prog->offloaded = false; } static void cls_bpf_offload_update_stats(struct tcf_proto *tp, struct cls_bpf_prog *prog) { - if (!prog->offloaded) - return; + struct tcf_block *block = tp->chain->block; + struct tc_cls_bpf_offload cls_bpf = {}; + + tc_cls_common_offload_init(&cls_bpf.common, tp); + cls_bpf.command = TC_CLSBPF_STATS; + cls_bpf.exts = &prog->exts; + cls_bpf.prog = prog->filter; + cls_bpf.name = prog->bpf_name; + cls_bpf.exts_integrated = prog->exts_integrated; + cls_bpf.gen_flags = prog->gen_flags; - cls_bpf_offload_cmd(tp, prog, TC_CLSBPF_STATS); + tc_setup_cb_call(block, NULL, TC_SETUP_CLSBPF, &cls_bpf, false); } static int cls_bpf_init(struct tcf_proto *tp) diff --git a/net/sched/cls_u32.c b/net/sched/cls_u32.c index ac152b4f4247..507859cdd1cb 100644 --- a/net/sched/cls_u32.c +++ b/net/sched/cls_u32.c @@ -45,7 +45,6 @@ #include <net/netlink.h> #include <net/act_api.h> #include <net/pkt_cls.h> -#include <linux/netdevice.h> #include <linux/idr.h> struct tc_u_knode { diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c index b6c4f536876b..0f1eab99ff4e 100644 --- a/net/sched/sch_api.c +++ b/net/sched/sch_api.c @@ -795,6 +795,8 @@ static int tc_fill_qdisc(struct sk_buff *skb, struct Qdisc *q, u32 clid, tcm->tcm_info = refcount_read(&q->refcnt); if (nla_put_string(skb, TCA_KIND, q->ops->id)) goto nla_put_failure; + if (nla_put_u8(skb, TCA_HW_OFFLOAD, !!(q->flags & TCQ_F_OFFLOADED))) + goto nla_put_failure; if (q->ops->dump && q->ops->dump(q, skb) < 0) goto nla_put_failure; qlen = q->q.qlen; diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c index cd1b200acae7..661c7144b53a 100644 --- a/net/sched/sch_generic.c +++ b/net/sched/sch_generic.c @@ -1040,6 +1040,8 @@ void mini_qdisc_pair_swap(struct mini_Qdisc_pair *miniqp, if (!tp_head) { RCU_INIT_POINTER(*miniqp->p_miniq, NULL); + /* Wait for flying RCU callback before it is freed. */ + rcu_barrier_bh(); return; } @@ -1055,7 +1057,7 @@ void mini_qdisc_pair_swap(struct mini_Qdisc_pair *miniqp, rcu_assign_pointer(*miniqp->p_miniq, miniq); if (miniq_old) - /* This is counterpart of the rcu barrier above. We need to + /* This is counterpart of the rcu barriers above. We need to * block potential new user of miniq_old until all readers * are not seeing it. */ diff --git a/net/sched/sch_ingress.c b/net/sched/sch_ingress.c index 5ecc38f35d47..fc1286f499c1 100644 --- a/net/sched/sch_ingress.c +++ b/net/sched/sch_ingress.c @@ -68,6 +68,8 @@ static int ingress_init(struct Qdisc *sch, struct nlattr *opt) struct net_device *dev = qdisc_dev(sch); int err; + net_inc_ingress_queue(); + mini_qdisc_pair_init(&q->miniqp, sch, &dev->miniq_ingress); q->block_info.binder_type = TCF_BLOCK_BINDER_TYPE_CLSACT_INGRESS; @@ -78,7 +80,6 @@ static int ingress_init(struct Qdisc *sch, struct nlattr *opt) if (err) return err; - net_inc_ingress_queue(); sch->flags |= TCQ_F_CPUSTATS; return 0; @@ -172,6 +173,9 @@ static int clsact_init(struct Qdisc *sch, struct nlattr *opt) struct net_device *dev = qdisc_dev(sch); int err; + net_inc_ingress_queue(); + net_inc_egress_queue(); + mini_qdisc_pair_init(&q->miniqp_ingress, sch, &dev->miniq_ingress); q->ingress_block_info.binder_type = TCF_BLOCK_BINDER_TYPE_CLSACT_INGRESS; @@ -190,18 +194,11 @@ static int clsact_init(struct Qdisc *sch, struct nlattr *opt) err = tcf_block_get_ext(&q->egress_block, sch, &q->egress_block_info); if (err) - goto err_egress_block_get; - - net_inc_ingress_queue(); - net_inc_egress_queue(); + return err; sch->flags |= TCQ_F_CPUSTATS; return 0; - -err_egress_block_get: - tcf_block_put_ext(q->ingress_block, sch, &q->ingress_block_info); - return err; } static void clsact_destroy(struct Qdisc *sch) diff --git a/net/sched/sch_red.c b/net/sched/sch_red.c index 9d874e60e032..f0747eb87dc4 100644 --- a/net/sched/sch_red.c +++ b/net/sched/sch_red.c @@ -157,6 +157,7 @@ static int red_offload(struct Qdisc *sch, bool enable) .handle = sch->handle, .parent = sch->parent, }; + int err; if (!tc_can_offload(dev) || !dev->netdev_ops->ndo_setup_tc) return -EOPNOTSUPP; @@ -171,7 +172,14 @@ static int red_offload(struct Qdisc *sch, bool enable) opt.command = TC_RED_DESTROY; } - return dev->netdev_ops->ndo_setup_tc(dev, TC_SETUP_QDISC_RED, &opt); + err = dev->netdev_ops->ndo_setup_tc(dev, TC_SETUP_QDISC_RED, &opt); + + if (!err && enable) + sch->flags |= TCQ_F_OFFLOADED; + else + sch->flags &= ~TCQ_F_OFFLOADED; + + return err; } static void red_destroy(struct Qdisc *sch) @@ -274,7 +282,7 @@ static int red_init(struct Qdisc *sch, struct nlattr *opt) return red_change(sch, opt); } -static int red_dump_offload(struct Qdisc *sch, struct tc_red_qopt *opt) +static int red_dump_offload_stats(struct Qdisc *sch, struct tc_red_qopt *opt) { struct net_device *dev = qdisc_dev(sch); struct tc_red_qopt_offload hw_stats = { @@ -286,21 +294,12 @@ static int red_dump_offload(struct Qdisc *sch, struct tc_red_qopt *opt) .stats.qstats = &sch->qstats, }, }; - int err; - opt->flags &= ~TC_RED_OFFLOADED; - if (!tc_can_offload(dev) || !dev->netdev_ops->ndo_setup_tc) - return 0; - - err = dev->netdev_ops->ndo_setup_tc(dev, TC_SETUP_QDISC_RED, - &hw_stats); - if (err == -EOPNOTSUPP) + if (!(sch->flags & TCQ_F_OFFLOADED)) return 0; - if (!err) - opt->flags |= TC_RED_OFFLOADED; - - return err; + return dev->netdev_ops->ndo_setup_tc(dev, TC_SETUP_QDISC_RED, + &hw_stats); } static int red_dump(struct Qdisc *sch, struct sk_buff *skb) @@ -319,7 +318,7 @@ static int red_dump(struct Qdisc *sch, struct sk_buff *skb) int err; sch->qstats.backlog = q->qdisc->qstats.backlog; - err = red_dump_offload(sch, &opt); + err = red_dump_offload_stats(sch, &opt); if (err) goto nla_put_failure; @@ -347,7 +346,7 @@ static int red_dump_stats(struct Qdisc *sch, struct gnet_dump *d) .marked = q->stats.prob_mark + q->stats.forced_mark, }; - if (tc_can_offload(dev) && dev->netdev_ops->ndo_setup_tc) { + if (sch->flags & TCQ_F_OFFLOADED) { struct red_stats hw_stats = {0}; struct tc_red_qopt_offload hw_stats_request = { .command = TC_RED_XSTATS, diff --git a/net/sctp/debug.c b/net/sctp/debug.c index 3f619fdcbf0a..291c97b07058 100644 --- a/net/sctp/debug.c +++ b/net/sctp/debug.c @@ -78,6 +78,9 @@ const char *sctp_cname(const union sctp_subtype cid) case SCTP_CID_AUTH: return "AUTH"; + case SCTP_CID_RECONF: + return "RECONF"; + default: break; } diff --git a/net/sctp/socket.c b/net/sctp/socket.c index eb17a911aa29..b4fb6e4886d2 100644 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@ -3891,13 +3891,17 @@ static int sctp_setsockopt_reset_streams(struct sock *sk, struct sctp_association *asoc; int retval = -EINVAL; - if (optlen < sizeof(struct sctp_reset_streams)) + if (optlen < sizeof(*params)) return -EINVAL; params = memdup_user(optval, optlen); if (IS_ERR(params)) return PTR_ERR(params); + if (params->srs_number_streams * sizeof(__u16) > + optlen - sizeof(*params)) + goto out; + asoc = sctp_id2assoc(sk, params->srs_assoc_id); if (!asoc) goto out; @@ -4494,7 +4498,7 @@ static int sctp_init_sock(struct sock *sk) SCTP_DBG_OBJCNT_INC(sock); local_bh_disable(); - percpu_counter_inc(&sctp_sockets_allocated); + sk_sockets_allocated_inc(sk); sock_prot_inuse_add(net, sk->sk_prot, 1); /* Nothing can fail after this block, otherwise @@ -4538,7 +4542,7 @@ static void sctp_destroy_sock(struct sock *sk) } sctp_endpoint_free(sp->ep); local_bh_disable(); - percpu_counter_dec(&sctp_sockets_allocated); + sk_sockets_allocated_dec(sk); sock_prot_inuse_add(sock_net(sk), sk->sk_prot, -1); local_bh_enable(); } diff --git a/net/sctp/ulpqueue.c b/net/sctp/ulpqueue.c index a71be33f3afe..e36ec5dd64c6 100644 --- a/net/sctp/ulpqueue.c +++ b/net/sctp/ulpqueue.c @@ -1084,29 +1084,21 @@ void sctp_ulpq_partial_delivery(struct sctp_ulpq *ulpq, void sctp_ulpq_renege(struct sctp_ulpq *ulpq, struct sctp_chunk *chunk, gfp_t gfp) { - struct sctp_association *asoc; - __u16 needed, freed; - - asoc = ulpq->asoc; + struct sctp_association *asoc = ulpq->asoc; + __u32 freed = 0; + __u16 needed; - if (chunk) { - needed = ntohs(chunk->chunk_hdr->length); - needed -= sizeof(struct sctp_data_chunk); - } else - needed = SCTP_DEFAULT_MAXWINDOW; - - freed = 0; + needed = ntohs(chunk->chunk_hdr->length) - + sizeof(struct sctp_data_chunk); if (skb_queue_empty(&asoc->base.sk->sk_receive_queue)) { freed = sctp_ulpq_renege_order(ulpq, needed); - if (freed < needed) { + if (freed < needed) freed += sctp_ulpq_renege_frags(ulpq, needed - freed); - } } /* If able to free enough room, accept this chunk. */ - if (chunk && (freed >= needed)) { - int retval; - retval = sctp_ulpq_tail_data(ulpq, chunk, gfp); + if (freed >= needed) { + int retval = sctp_ulpq_tail_data(ulpq, chunk, gfp); /* * Enter partial delivery if chunk has not been * delivered; otherwise, drain the reassembly queue. diff --git a/net/strparser/strparser.c b/net/strparser/strparser.c index c5fda15ba319..1fdab5c4eda8 100644 --- a/net/strparser/strparser.c +++ b/net/strparser/strparser.c @@ -401,7 +401,7 @@ void strp_data_ready(struct strparser *strp) * allows a thread in BH context to safely check if the process * lock is held. In this case, if the lock is held, queue work. */ - if (sock_owned_by_user(strp->sk)) { + if (sock_owned_by_user_nocheck(strp->sk)) { queue_work(strp_wq, &strp->work); return; } diff --git a/net/sunrpc/auth_gss/gss_rpc_xdr.c b/net/sunrpc/auth_gss/gss_rpc_xdr.c index c4778cae58ef..444380f968f1 100644 --- a/net/sunrpc/auth_gss/gss_rpc_xdr.c +++ b/net/sunrpc/auth_gss/gss_rpc_xdr.c @@ -231,6 +231,7 @@ static int gssx_dec_linux_creds(struct xdr_stream *xdr, goto out_free_groups; creds->cr_group_info->gid[i] = kgid; } + groups_sort(creds->cr_group_info); return 0; out_free_groups: diff --git a/net/sunrpc/auth_gss/svcauth_gss.c b/net/sunrpc/auth_gss/svcauth_gss.c index 5dd4e6c9fef2..26531193fce4 100644 --- a/net/sunrpc/auth_gss/svcauth_gss.c +++ b/net/sunrpc/auth_gss/svcauth_gss.c @@ -481,6 +481,7 @@ static int rsc_parse(struct cache_detail *cd, goto out; rsci.cred.cr_group_info->gid[i] = kgid; } + groups_sort(rsci.cred.cr_group_info); /* mech name */ len = qword_get(&mesg, buf, mlen); diff --git a/net/sunrpc/svcauth_unix.c b/net/sunrpc/svcauth_unix.c index 740b67d5a733..af7f28fb8102 100644 --- a/net/sunrpc/svcauth_unix.c +++ b/net/sunrpc/svcauth_unix.c @@ -520,6 +520,7 @@ static int unix_gid_parse(struct cache_detail *cd, ug.gi->gid[i] = kgid; } + groups_sort(ug.gi); ugp = unix_gid_lookup(cd, uid); if (ugp) { struct cache_head *ch; @@ -819,6 +820,7 @@ svcauth_unix_accept(struct svc_rqst *rqstp, __be32 *authp) kgid_t kgid = make_kgid(&init_user_ns, svc_getnl(argv)); cred->cr_group_info->gid[i] = kgid; } + groups_sort(cred->cr_group_info); if (svc_getu32(argv) != htonl(RPC_AUTH_NULL) || svc_getu32(argv) != 0) { *authp = rpc_autherr_badverf; return SVC_DENIED; diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c index 333b9d697ae5..33b74fd84051 100644 --- a/net/sunrpc/xprt.c +++ b/net/sunrpc/xprt.c @@ -1001,6 +1001,7 @@ void xprt_transmit(struct rpc_task *task) { struct rpc_rqst *req = task->tk_rqstp; struct rpc_xprt *xprt = req->rq_xprt; + unsigned int connect_cookie; int status, numreqs; dprintk("RPC: %5u xprt_transmit(%u)\n", task->tk_pid, req->rq_slen); @@ -1024,6 +1025,7 @@ void xprt_transmit(struct rpc_task *task) } else if (!req->rq_bytes_sent) return; + connect_cookie = xprt->connect_cookie; req->rq_xtime = ktime_get(); status = xprt->ops->send_request(task); trace_xprt_transmit(xprt, req->rq_xid, status); @@ -1047,20 +1049,28 @@ void xprt_transmit(struct rpc_task *task) xprt->stat.bklog_u += xprt->backlog.qlen; xprt->stat.sending_u += xprt->sending.qlen; xprt->stat.pending_u += xprt->pending.qlen; + spin_unlock_bh(&xprt->transport_lock); - /* Don't race with disconnect */ - if (!xprt_connected(xprt)) - task->tk_status = -ENOTCONN; - else { + req->rq_connect_cookie = connect_cookie; + if (rpc_reply_expected(task) && !READ_ONCE(req->rq_reply_bytes_recvd)) { /* - * Sleep on the pending queue since - * we're expecting a reply. + * Sleep on the pending queue if we're expecting a reply. + * The spinlock ensures atomicity between the test of + * req->rq_reply_bytes_recvd, and the call to rpc_sleep_on(). */ - if (!req->rq_reply_bytes_recvd && rpc_reply_expected(task)) + spin_lock(&xprt->recv_lock); + if (!req->rq_reply_bytes_recvd) { rpc_sleep_on(&xprt->pending, task, xprt_timer); - req->rq_connect_cookie = xprt->connect_cookie; + /* + * Send an extra queue wakeup call if the + * connection was dropped in case the call to + * rpc_sleep_on() raced. + */ + if (!xprt_connected(xprt)) + xprt_wake_pending_tasks(xprt, -ENOTCONN); + } + spin_unlock(&xprt->recv_lock); } - spin_unlock_bh(&xprt->transport_lock); } static void xprt_add_backlog(struct rpc_xprt *xprt, struct rpc_task *task) diff --git a/net/sunrpc/xprtrdma/rpc_rdma.c b/net/sunrpc/xprtrdma/rpc_rdma.c index ed34dc0f144c..a3f2ab283aeb 100644 --- a/net/sunrpc/xprtrdma/rpc_rdma.c +++ b/net/sunrpc/xprtrdma/rpc_rdma.c @@ -1408,11 +1408,7 @@ void rpcrdma_reply_handler(struct rpcrdma_rep *rep) dprintk("RPC: %s: reply %p completes request %p (xid 0x%08x)\n", __func__, rep, req, be32_to_cpu(rep->rr_xid)); - if (list_empty(&req->rl_registered) && - !test_bit(RPCRDMA_REQ_F_TX_RESOURCES, &req->rl_flags)) - rpcrdma_complete_rqst(rep); - else - queue_work(rpcrdma_receive_wq, &rep->rr_work); + queue_work_on(req->rl_cpu, rpcrdma_receive_wq, &rep->rr_work); return; out_badstatus: diff --git a/net/sunrpc/xprtrdma/transport.c b/net/sunrpc/xprtrdma/transport.c index 646c24494ea7..6ee1ad8978f3 100644 --- a/net/sunrpc/xprtrdma/transport.c +++ b/net/sunrpc/xprtrdma/transport.c @@ -52,6 +52,7 @@ #include <linux/slab.h> #include <linux/seq_file.h> #include <linux/sunrpc/addr.h> +#include <linux/smp.h> #include "xprt_rdma.h" @@ -656,6 +657,7 @@ xprt_rdma_allocate(struct rpc_task *task) task->tk_pid, __func__, rqst->rq_callsize, rqst->rq_rcvsize, req); + req->rl_cpu = smp_processor_id(); req->rl_connect_cookie = 0; /* our reserved value */ rpcrdma_set_xprtdata(rqst, req); rqst->rq_buffer = req->rl_sendbuf->rg_base; diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c index 710b3f77db82..8607c029c0dd 100644 --- a/net/sunrpc/xprtrdma/verbs.c +++ b/net/sunrpc/xprtrdma/verbs.c @@ -83,7 +83,7 @@ rpcrdma_alloc_wq(void) struct workqueue_struct *recv_wq; recv_wq = alloc_workqueue("xprtrdma_receive", - WQ_MEM_RECLAIM | WQ_UNBOUND | WQ_HIGHPRI, + WQ_MEM_RECLAIM | WQ_HIGHPRI, 0); if (!recv_wq) return -ENOMEM; diff --git a/net/sunrpc/xprtrdma/xprt_rdma.h b/net/sunrpc/xprtrdma/xprt_rdma.h index 51686d9eac5f..1342f743f1c4 100644 --- a/net/sunrpc/xprtrdma/xprt_rdma.h +++ b/net/sunrpc/xprtrdma/xprt_rdma.h @@ -342,6 +342,7 @@ enum { struct rpcrdma_buffer; struct rpcrdma_req { struct list_head rl_list; + int rl_cpu; unsigned int rl_connect_cookie; struct rpcrdma_buffer *rl_buffer; struct rpcrdma_rep *rl_reply; diff --git a/net/tipc/bearer.c b/net/tipc/bearer.c index 47ec121574ce..c8001471da6c 100644 --- a/net/tipc/bearer.c +++ b/net/tipc/bearer.c @@ -324,6 +324,7 @@ restart: if (res) { pr_warn("Bearer <%s> rejected, enable failure (%d)\n", name, -res); + kfree(b); return -EINVAL; } @@ -347,8 +348,10 @@ restart: if (skb) tipc_bearer_xmit_skb(net, bearer_id, skb, &b->bcast_addr); - if (tipc_mon_create(net, bearer_id)) + if (tipc_mon_create(net, bearer_id)) { + bearer_disable(net, b); return -ENOMEM; + } pr_info("Enabled bearer <%s>, discovery domain %s, priority %u\n", name, diff --git a/net/tipc/group.c b/net/tipc/group.c index 95fec2c057d6..8e12ab55346b 100644 --- a/net/tipc/group.c +++ b/net/tipc/group.c @@ -351,8 +351,7 @@ void tipc_group_update_member(struct tipc_member *m, int len) if (m->window >= ADV_IDLE) return; - if (!list_empty(&m->congested)) - return; + list_del_init(&m->congested); /* Sort member into congested members' list */ list_for_each_entry_safe(_m, tmp, &grp->congested, congested) { @@ -369,18 +368,20 @@ void tipc_group_update_bc_members(struct tipc_group *grp, int len, bool ack) u16 prev = grp->bc_snd_nxt - 1; struct tipc_member *m; struct rb_node *n; + u16 ackers = 0; for (n = rb_first(&grp->members); n; n = rb_next(n)) { m = container_of(n, struct tipc_member, tree_node); if (tipc_group_is_enabled(m)) { tipc_group_update_member(m, len); m->bc_acked = prev; + ackers++; } } /* Mark number of acknowledges to expect, if any */ if (ack) - grp->bc_ackers = grp->member_cnt; + grp->bc_ackers = ackers; grp->bc_snd_nxt++; } @@ -648,6 +649,7 @@ static void tipc_group_proto_xmit(struct tipc_group *grp, struct tipc_member *m, } else if (mtyp == GRP_REMIT_MSG) { msg_set_grp_remitted(hdr, m->window); } + msg_set_dest_droppable(hdr, true); __skb_queue_tail(xmitq, skb); } @@ -689,15 +691,16 @@ void tipc_group_proto_rcv(struct tipc_group *grp, bool *usr_wakeup, msg_set_grp_bc_seqno(ehdr, m->bc_syncpt); __skb_queue_tail(inputq, m->event_msg); } - if (m->window < ADV_IDLE) - tipc_group_update_member(m, 0); - else - list_del_init(&m->congested); + list_del_init(&m->congested); + tipc_group_update_member(m, 0); return; case GRP_LEAVE_MSG: if (!m) return; m->bc_syncpt = msg_grp_bc_syncpt(hdr); + list_del_init(&m->list); + list_del_init(&m->congested); + *usr_wakeup = true; /* Wait until WITHDRAW event is received */ if (m->state != MBR_LEAVING) { @@ -709,8 +712,6 @@ void tipc_group_proto_rcv(struct tipc_group *grp, bool *usr_wakeup, ehdr = buf_msg(m->event_msg); msg_set_grp_bc_seqno(ehdr, m->bc_syncpt); __skb_queue_tail(inputq, m->event_msg); - *usr_wakeup = true; - list_del_init(&m->congested); return; case GRP_ADV_MSG: if (!m) @@ -849,19 +850,29 @@ void tipc_group_member_evt(struct tipc_group *grp, *usr_wakeup = true; m->usr_pending = false; node_up = tipc_node_is_up(net, node); - - /* Hold back event if more messages might be expected */ - if (m->state != MBR_LEAVING && node_up) { - m->event_msg = skb; - tipc_group_decr_active(grp, m); - m->state = MBR_LEAVING; - } else { - if (node_up) + m->event_msg = NULL; + + if (node_up) { + /* Hold back event if a LEAVE msg should be expected */ + if (m->state != MBR_LEAVING) { + m->event_msg = skb; + tipc_group_decr_active(grp, m); + m->state = MBR_LEAVING; + } else { msg_set_grp_bc_seqno(hdr, m->bc_syncpt); - else + __skb_queue_tail(inputq, skb); + } + } else { + if (m->state != MBR_LEAVING) { + tipc_group_decr_active(grp, m); + m->state = MBR_LEAVING; msg_set_grp_bc_seqno(hdr, m->bc_rcv_nxt); + } else { + msg_set_grp_bc_seqno(hdr, m->bc_syncpt); + } __skb_queue_tail(inputq, skb); } + list_del_init(&m->list); list_del_init(&m->congested); } *sk_rcvbuf = tipc_group_rcvbuf_limit(grp); diff --git a/net/tipc/monitor.c b/net/tipc/monitor.c index 8e884ed06d4b..32dc33a94bc7 100644 --- a/net/tipc/monitor.c +++ b/net/tipc/monitor.c @@ -642,9 +642,13 @@ void tipc_mon_delete(struct net *net, int bearer_id) { struct tipc_net *tn = tipc_net(net); struct tipc_monitor *mon = tipc_monitor(net, bearer_id); - struct tipc_peer *self = get_self(net, bearer_id); + struct tipc_peer *self; struct tipc_peer *peer, *tmp; + if (!mon) + return; + + self = get_self(net, bearer_id); write_lock_bh(&mon->lock); tn->monitors[bearer_id] = NULL; list_for_each_entry_safe(peer, tmp, &self->list, list) { diff --git a/net/tipc/socket.c b/net/tipc/socket.c index 5d18c0caa92b..3b4084480377 100644 --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@ -727,11 +727,11 @@ static unsigned int tipc_poll(struct file *file, struct socket *sock, switch (sk->sk_state) { case TIPC_ESTABLISHED: + case TIPC_CONNECTING: if (!tsk->cong_link_cnt && !tsk_conn_cong(tsk)) revents |= POLLOUT; /* fall thru' */ case TIPC_LISTEN: - case TIPC_CONNECTING: if (!skb_queue_empty(&sk->sk_receive_queue)) revents |= POLLIN | POLLRDNORM; break; @@ -1140,7 +1140,7 @@ void tipc_sk_mcast_rcv(struct net *net, struct sk_buff_head *arrvq, __skb_dequeue(arrvq); __skb_queue_tail(inputq, skb); } - refcount_dec(&skb->users); + kfree_skb(skb); spin_unlock_bh(&inputq->lock); continue; } diff --git a/net/wireless/Makefile b/net/wireless/Makefile index 278d979c211a..1d84f91bbfb0 100644 --- a/net/wireless/Makefile +++ b/net/wireless/Makefile @@ -23,19 +23,36 @@ ifneq ($(CONFIG_CFG80211_EXTRA_REGDB_KEYDIR),) cfg80211-y += extra-certs.o endif -$(obj)/shipped-certs.c: $(wildcard $(srctree)/$(src)/certs/*.x509) +$(obj)/shipped-certs.c: $(wildcard $(srctree)/$(src)/certs/*.hex) @$(kecho) " GEN $@" - @echo '#include "reg.h"' > $@ - @echo 'const u8 shipped_regdb_certs[] = {' >> $@ - @for f in $^ ; do hexdump -v -e '1/1 "0x%.2x," "\n"' < $$f >> $@ ; done - @echo '};' >> $@ - @echo 'unsigned int shipped_regdb_certs_len = sizeof(shipped_regdb_certs);' >> $@ + @(echo '#include "reg.h"'; \ + echo 'const u8 shipped_regdb_certs[] = {'; \ + cat $^ ; \ + echo '};'; \ + echo 'unsigned int shipped_regdb_certs_len = sizeof(shipped_regdb_certs);'; \ + ) > $@ $(obj)/extra-certs.c: $(CONFIG_CFG80211_EXTRA_REGDB_KEYDIR:"%"=%) \ $(wildcard $(CONFIG_CFG80211_EXTRA_REGDB_KEYDIR:"%"=%)/*.x509) @$(kecho) " GEN $@" - @echo '#include "reg.h"' > $@ - @echo 'const u8 extra_regdb_certs[] = {' >> $@ - @for f in $^ ; do test -f $$f && hexdump -v -e '1/1 "0x%.2x," "\n"' < $$f >> $@ || true ; done - @echo '};' >> $@ - @echo 'unsigned int extra_regdb_certs_len = sizeof(extra_regdb_certs);' >> $@ + @(set -e; \ + allf=""; \ + for f in $^ ; do \ + # similar to hexdump -v -e '1/1 "0x%.2x," "\n"' \ + thisf=$$(od -An -v -tx1 < $$f | \ + sed -e 's/ /\n/g' | \ + sed -e 's/^[0-9a-f]\+$$/\0/;t;d' | \ + sed -e 's/^/0x/;s/$$/,/'); \ + # file should not be empty - maybe command substitution failed? \ + test ! -z "$$thisf";\ + allf=$$allf$$thisf;\ + done; \ + ( \ + echo '#include "reg.h"'; \ + echo 'const u8 extra_regdb_certs[] = {'; \ + echo "$$allf"; \ + echo '};'; \ + echo 'unsigned int extra_regdb_certs_len = sizeof(extra_regdb_certs);'; \ + ) > $@) + +clean-files += shipped-certs.c extra-certs.c diff --git a/net/wireless/certs/sforshee.hex b/net/wireless/certs/sforshee.hex new file mode 100644 index 000000000000..14ea66643ffa --- /dev/null +++ b/net/wireless/certs/sforshee.hex @@ -0,0 +1,86 @@ +/* Seth Forshee's regdb certificate */ +0x30, 0x82, 0x02, 0xa4, 0x30, 0x82, 0x01, 0x8c, +0x02, 0x09, 0x00, 0xb2, 0x8d, 0xdf, 0x47, 0xae, +0xf9, 0xce, 0xa7, 0x30, 0x0d, 0x06, 0x09, 0x2a, +0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x0b, +0x05, 0x00, 0x30, 0x13, 0x31, 0x11, 0x30, 0x0f, +0x06, 0x03, 0x55, 0x04, 0x03, 0x0c, 0x08, 0x73, +0x66, 0x6f, 0x72, 0x73, 0x68, 0x65, 0x65, 0x30, +0x20, 0x17, 0x0d, 0x31, 0x37, 0x31, 0x30, 0x30, +0x36, 0x31, 0x39, 0x34, 0x30, 0x33, 0x35, 0x5a, +0x18, 0x0f, 0x32, 0x31, 0x31, 0x37, 0x30, 0x39, +0x31, 0x32, 0x31, 0x39, 0x34, 0x30, 0x33, 0x35, +0x5a, 0x30, 0x13, 0x31, 0x11, 0x30, 0x0f, 0x06, +0x03, 0x55, 0x04, 0x03, 0x0c, 0x08, 0x73, 0x66, +0x6f, 0x72, 0x73, 0x68, 0x65, 0x65, 0x30, 0x82, +0x01, 0x22, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, +0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x01, 0x05, +0x00, 0x03, 0x82, 0x01, 0x0f, 0x00, 0x30, 0x82, +0x01, 0x0a, 0x02, 0x82, 0x01, 0x01, 0x00, 0xb5, +0x40, 0xe3, 0x9c, 0x28, 0x84, 0x39, 0x03, 0xf2, +0x39, 0xd7, 0x66, 0x2c, 0x41, 0x38, 0x15, 0xac, +0x7e, 0xa5, 0x83, 0x71, 0x25, 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0x06, 0x3f, 0xc8, 0xb6, 0xe4, +0x6a, 0x28, 0xf2, 0x34, 0x5c, 0x23, 0x3f, 0x32, +0xc0, 0xe6, 0xad, 0x0f, 0xac, 0xcf, 0x55, 0x74, +0x47, 0x73, 0xd3, 0x01, 0x85, 0xb7, 0x0b, 0x22, +0x56, 0x24, 0x7d, 0x9f, 0x09, 0xa9, 0x0e, 0x86, +0x9e, 0x37, 0x5b, 0x9c, 0x6d, 0x02, 0xd9, 0x8c, +0xc8, 0x50, 0x6a, 0xe2, 0x59, 0xf3, 0x16, 0x06, +0xea, 0xb2, 0x42, 0xb5, 0x58, 0xfe, 0xba, 0xd1, +0x81, 0x57, 0x1a, 0xef, 0xb2, 0x38, 0x88, 0x58, +0xf6, 0xaa, 0xc4, 0x2e, 0x8b, 0x5a, 0x27, 0xe4, +0xa5, 0xe8, 0xa4, 0xca, 0x67, 0x5c, 0xac, 0x72, +0x67, 0xc3, 0x6f, 0x13, 0xc3, 0x2d, 0x35, 0x79, +0xd7, 0x8a, 0xe7, 0xf5, 0xd4, 0x21, 0x30, 0x4a, +0xd5, 0xf6, 0xa3, 0xd9, 0x79, 0x56, 0xf2, 0x0f, +0x10, 0xf7, 0x7d, 0xd0, 0x51, 0x93, 0x2f, 0x47, +0xf8, 0x7d, 0x4b, 0x0a, 0x84, 0x55, 0x12, 0x0a, +0x7d, 0x4e, 0x3b, 0x1f, 0x2b, 0x2f, 0xfc, 0x28, +0xb3, 0x69, 0x34, 0xe1, 0x80, 0x80, 0xbb, 0xe2, +0xaf, 0xb9, 0xd6, 0x30, 0xf1, 0x1d, 0x54, 0x87, +0x23, 0x99, 0x9f, 0x51, 0x03, 0x4c, 0x45, 0x7d, +0x02, 0x65, 0x73, 0xab, 0xfd, 0xcf, 0x94, 0xcc, +0x0d, 0x3a, 0x60, 0xfd, 0x3c, 0x14, 0x2f, 0x16, +0x33, 0xa9, 0x21, 0x1f, 0xcb, 0x50, 0xb1, 0x8f, +0x03, 0xee, 0xa0, 0x66, 0xa9, 0x16, 0x79, 0x14, diff --git a/net/wireless/certs/sforshee.x509 b/net/wireless/certs/sforshee.x509 Binary files differdeleted file mode 100644 index c6f8f9d6b988..000000000000 --- a/net/wireless/certs/sforshee.x509 +++ /dev/null diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index b1ac23ca20c8..213d0c498c97 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -2610,7 +2610,7 @@ static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flag case NL80211_IFTYPE_AP: if (wdev->ssid_len && nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid)) - goto nla_put_failure; + goto nla_put_failure_locked; break; case NL80211_IFTYPE_STATION: case NL80211_IFTYPE_P2P_CLIENT: @@ -2623,7 +2623,7 @@ static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flag if (!ssid_ie) break; if (nla_put(msg, NL80211_ATTR_SSID, ssid_ie[1], ssid_ie + 2)) - goto nla_put_failure; + goto nla_put_failure_locked; break; } default: @@ -2635,6 +2635,8 @@ static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flag genlmsg_end(msg, hdr); return 0; + nla_put_failure_locked: + wdev_unlock(wdev); nla_put_failure: genlmsg_cancel(msg, hdr); return -EMSGSIZE; diff --git a/net/xfrm/xfrm_input.c b/net/xfrm/xfrm_input.c index 347ab31574d5..3f6f6f8c9fa5 100644 --- a/net/xfrm/xfrm_input.c +++ b/net/xfrm/xfrm_input.c @@ -8,15 +8,29 @@ * */ +#include <linux/bottom_half.h> +#include <linux/interrupt.h> #include <linux/slab.h> #include <linux/module.h> #include <linux/netdevice.h> +#include <linux/percpu.h> #include <net/dst.h> #include <net/ip.h> #include <net/xfrm.h> #include <net/ip_tunnels.h> #include <net/ip6_tunnel.h> +struct xfrm_trans_tasklet { + struct tasklet_struct tasklet; + struct sk_buff_head queue; +}; + +struct xfrm_trans_cb { + int (*finish)(struct net *net, struct sock *sk, struct sk_buff *skb); +}; + +#define XFRM_TRANS_SKB_CB(__skb) ((struct xfrm_trans_cb *)&((__skb)->cb[0])) + static struct kmem_cache *secpath_cachep __read_mostly; static DEFINE_SPINLOCK(xfrm_input_afinfo_lock); @@ -25,6 +39,8 @@ static struct xfrm_input_afinfo const __rcu *xfrm_input_afinfo[AF_INET6 + 1]; static struct gro_cells gro_cells; static struct net_device xfrm_napi_dev; +static DEFINE_PER_CPU(struct xfrm_trans_tasklet, xfrm_trans_tasklet); + int xfrm_input_register_afinfo(const struct xfrm_input_afinfo *afinfo) { int err = 0; @@ -207,7 +223,7 @@ int xfrm_input(struct sk_buff *skb, int nexthdr, __be32 spi, int encap_type) xfrm_address_t *daddr; struct xfrm_mode *inner_mode; u32 mark = skb->mark; - unsigned int family; + unsigned int family = AF_UNSPEC; int decaps = 0; int async = 0; bool xfrm_gro = false; @@ -216,6 +232,16 @@ int xfrm_input(struct sk_buff *skb, int nexthdr, __be32 spi, int encap_type) if (encap_type < 0) { x = xfrm_input_state(skb); + + if (unlikely(x->km.state != XFRM_STATE_VALID)) { + if (x->km.state == XFRM_STATE_ACQ) + XFRM_INC_STATS(net, LINUX_MIB_XFRMACQUIREERROR); + else + XFRM_INC_STATS(net, + LINUX_MIB_XFRMINSTATEINVALID); + goto drop; + } + family = x->outer_mode->afinfo->family; /* An encap_type of -1 indicates async resumption. */ @@ -467,9 +493,41 @@ int xfrm_input_resume(struct sk_buff *skb, int nexthdr) } EXPORT_SYMBOL(xfrm_input_resume); +static void xfrm_trans_reinject(unsigned long data) +{ + struct xfrm_trans_tasklet *trans = (void *)data; + struct sk_buff_head queue; + struct sk_buff *skb; + + __skb_queue_head_init(&queue); + skb_queue_splice_init(&trans->queue, &queue); + + while ((skb = __skb_dequeue(&queue))) + XFRM_TRANS_SKB_CB(skb)->finish(dev_net(skb->dev), NULL, skb); +} + +int xfrm_trans_queue(struct sk_buff *skb, + int (*finish)(struct net *, struct sock *, + struct sk_buff *)) +{ + struct xfrm_trans_tasklet *trans; + + trans = this_cpu_ptr(&xfrm_trans_tasklet); + + if (skb_queue_len(&trans->queue) >= netdev_max_backlog) + return -ENOBUFS; + + XFRM_TRANS_SKB_CB(skb)->finish = finish; + skb_queue_tail(&trans->queue, skb); + tasklet_schedule(&trans->tasklet); + return 0; +} +EXPORT_SYMBOL(xfrm_trans_queue); + void __init xfrm_input_init(void) { int err; + int i; init_dummy_netdev(&xfrm_napi_dev); err = gro_cells_init(&gro_cells, &xfrm_napi_dev); @@ -480,4 +538,13 @@ void __init xfrm_input_init(void) sizeof(struct sec_path), 0, SLAB_HWCACHE_ALIGN|SLAB_PANIC, NULL); + + for_each_possible_cpu(i) { + struct xfrm_trans_tasklet *trans; + + trans = &per_cpu(xfrm_trans_tasklet, i); + __skb_queue_head_init(&trans->queue); + tasklet_init(&trans->tasklet, xfrm_trans_reinject, + (unsigned long)trans); + } } diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c index 9542975eb2f9..70aa5cb0c659 100644 --- a/net/xfrm/xfrm_policy.c +++ b/net/xfrm/xfrm_policy.c @@ -1168,9 +1168,15 @@ static struct xfrm_policy *xfrm_sk_policy_lookup(const struct sock *sk, int dir, again: pol = rcu_dereference(sk->sk_policy[dir]); if (pol != NULL) { - bool match = xfrm_selector_match(&pol->selector, fl, family); + bool match; int err = 0; + if (pol->family != family) { + pol = NULL; + goto out; + } + + match = xfrm_selector_match(&pol->selector, fl, family); if (match) { if ((sk->sk_mark & pol->mark.m) != pol->mark.v) { pol = NULL; @@ -1833,6 +1839,7 @@ xfrm_resolve_and_create_bundle(struct xfrm_policy **pols, int num_pols, sizeof(struct xfrm_policy *) * num_pols) == 0 && xfrm_xdst_can_reuse(xdst, xfrm, err)) { dst_hold(&xdst->u.dst); + xfrm_pols_put(pols, num_pols); while (err > 0) xfrm_state_put(xfrm[--err]); return xdst; diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c index 065d89606888..500b3391f474 100644 --- a/net/xfrm/xfrm_state.c +++ b/net/xfrm/xfrm_state.c @@ -1343,6 +1343,7 @@ static struct xfrm_state *xfrm_state_clone(struct xfrm_state *orig, if (orig->aead) { x->aead = xfrm_algo_aead_clone(orig->aead); + x->geniv = orig->geniv; if (!x->aead) goto error; } diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c index 983b0233767b..bdb48e5dba04 100644 --- a/net/xfrm/xfrm_user.c +++ b/net/xfrm/xfrm_user.c @@ -1419,11 +1419,14 @@ static void copy_templates(struct xfrm_policy *xp, struct xfrm_user_tmpl *ut, static int validate_tmpl(int nr, struct xfrm_user_tmpl *ut, u16 family) { + u16 prev_family; int i; if (nr > XFRM_MAX_DEPTH) return -EINVAL; + prev_family = family; + for (i = 0; i < nr; i++) { /* We never validated the ut->family value, so many * applications simply leave it at zero. The check was @@ -1435,6 +1438,12 @@ static int validate_tmpl(int nr, struct xfrm_user_tmpl *ut, u16 family) if (!ut[i].family) ut[i].family = family; + if ((ut[i].mode == XFRM_MODE_TRANSPORT) && + (ut[i].family != prev_family)) + return -EINVAL; + + prev_family = ut[i].family; + switch (ut[i].family) { case AF_INET: break; @@ -1445,6 +1454,21 @@ static int validate_tmpl(int nr, struct xfrm_user_tmpl *ut, u16 family) default: return -EINVAL; } + + switch (ut[i].id.proto) { + case IPPROTO_AH: + case IPPROTO_ESP: + case IPPROTO_COMP: +#if IS_ENABLED(CONFIG_IPV6) + case IPPROTO_ROUTING: + case IPPROTO_DSTOPTS: +#endif + case IPSEC_PROTO_ANY: + break; + default: + return -EINVAL; + } + } return 0; @@ -2470,7 +2494,7 @@ static const struct nla_policy xfrma_policy[XFRMA_MAX+1] = { [XFRMA_PROTO] = { .type = NLA_U8 }, [XFRMA_ADDRESS_FILTER] = { .len = sizeof(struct xfrm_address_filter) }, [XFRMA_OFFLOAD_DEV] = { .len = sizeof(struct xfrm_user_offload) }, - [XFRMA_OUTPUT_MARK] = { .len = NLA_U32 }, + [XFRMA_OUTPUT_MARK] = { .type = NLA_U32 }, }; static const struct nla_policy xfrma_spd_policy[XFRMA_SPD_MAX+1] = { |