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-rw-r--r--net/8021q/vlan_core.c5
-rw-r--r--net/bluetooth/hci_conn.c7
-rw-r--r--net/bluetooth/hci_event.c17
-rw-r--r--net/bluetooth/l2cap_core.c8
-rw-r--r--net/bluetooth/l2cap_sock.c5
-rw-r--r--net/bluetooth/mgmt.c104
-rw-r--r--net/bluetooth/smp.c9
-rw-r--r--net/core/dst.c16
-rw-r--r--net/core/filter.c10
-rw-r--r--net/core/skbuff.c2
-rw-r--r--net/ipv4/ip_tunnel.c14
-rw-r--r--net/ipv4/tcp_fastopen.c2
-rw-r--r--net/ipv4/tcp_input.c2
-rw-r--r--net/netfilter/ipvs/ip_vs_ctl.c2
-rw-r--r--net/netfilter/nf_conntrack_netlink.c20
-rw-r--r--net/netfilter/nf_nat_core.c35
-rw-r--r--net/netfilter/nf_tables_api.c11
-rw-r--r--net/netfilter/nft_compat.c18
-rw-r--r--net/netfilter/nft_nat.c14
-rw-r--r--net/sctp/sysctl.c46
20 files changed, 219 insertions, 128 deletions
diff --git a/net/8021q/vlan_core.c b/net/8021q/vlan_core.c
index 9012b1c922b6..75d427763992 100644
--- a/net/8021q/vlan_core.c
+++ b/net/8021q/vlan_core.c
@@ -114,8 +114,11 @@ EXPORT_SYMBOL(vlan_dev_vlan_proto);
static struct sk_buff *vlan_reorder_header(struct sk_buff *skb)
{
- if (skb_cow(skb, skb_headroom(skb)) < 0)
+ if (skb_cow(skb, skb_headroom(skb)) < 0) {
+ kfree_skb(skb);
return NULL;
+ }
+
memmove(skb->data - ETH_HLEN, skb->data - VLAN_ETH_HLEN, 2 * ETH_ALEN);
skb->mac_header += VLAN_HLEN;
return skb;
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index 8671bc79a35b..ca01d1861854 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -610,11 +610,6 @@ static void hci_req_add_le_create_conn(struct hci_request *req,
if (hci_update_random_address(req, false, &own_addr_type))
return;
- /* Save the address type used for this connnection attempt so we able
- * to retrieve this information if we need it.
- */
- conn->src_type = own_addr_type;
-
cp.scan_interval = cpu_to_le16(hdev->le_scan_interval);
cp.scan_window = cpu_to_le16(hdev->le_scan_window);
bacpy(&cp.peer_addr, &conn->dst);
@@ -894,7 +889,7 @@ static int hci_conn_auth(struct hci_conn *conn, __u8 sec_level, __u8 auth_type)
/* If we're already encrypted set the REAUTH_PEND flag,
* otherwise set the ENCRYPT_PEND.
*/
- if (conn->key_type != 0xff)
+ if (conn->link_mode & HCI_LM_ENCRYPT)
set_bit(HCI_CONN_REAUTH_PEND, &conn->flags);
else
set_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 21e5913d12e0..640c54ec1bd2 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -48,6 +48,10 @@ static void hci_cc_inquiry_cancel(struct hci_dev *hdev, struct sk_buff *skb)
smp_mb__after_atomic(); /* wake_up_bit advises about this barrier */
wake_up_bit(&hdev->flags, HCI_INQUIRY);
+ hci_dev_lock(hdev);
+ hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
+ hci_dev_unlock(hdev);
+
hci_conn_check_pending(hdev);
}
@@ -3537,7 +3541,11 @@ static void hci_io_capa_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
cp.authentication = conn->auth_type;
/* Request MITM protection if our IO caps allow it
- * except for the no-bonding case
+ * except for the no-bonding case.
+ * conn->auth_type is not updated here since
+ * that might cause the user confirmation to be
+ * rejected in case the remote doesn't have the
+ * IO capabilities for MITM.
*/
if (conn->io_capability != HCI_IO_NO_INPUT_OUTPUT &&
cp.authentication != HCI_AT_NO_BONDING)
@@ -3628,8 +3636,11 @@ static void hci_user_confirm_request_evt(struct hci_dev *hdev,
/* If we're not the initiators request authorization to
* proceed from user space (mgmt_user_confirm with
- * confirm_hint set to 1). */
- if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
+ * confirm_hint set to 1). The exception is if neither
+ * side had MITM in which case we do auto-accept.
+ */
+ if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags) &&
+ (loc_mitm || rem_mitm)) {
BT_DBG("Confirming auto-accept as acceptor");
confirm_hint = 1;
goto confirm;
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 6eabbe05fe54..323f23cd2c37 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -1663,7 +1663,13 @@ static void l2cap_conn_del(struct hci_conn *hcon, int err)
kfree_skb(conn->rx_skb);
skb_queue_purge(&conn->pending_rx);
- flush_work(&conn->pending_rx_work);
+
+ /* We can not call flush_work(&conn->pending_rx_work) here since we
+ * might block if we are running on a worker from the same workqueue
+ * pending_rx_work is waiting on.
+ */
+ if (work_pending(&conn->pending_rx_work))
+ cancel_work_sync(&conn->pending_rx_work);
l2cap_unregister_all_users(conn);
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index ade3fb4c23bc..e1378693cc90 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -787,11 +787,6 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname,
/*change security for LE channels */
if (chan->scid == L2CAP_CID_ATT) {
- if (!conn->hcon->out) {
- err = -EINVAL;
- break;
- }
-
if (smp_conn_security(conn->hcon, sec.level))
break;
sk->sk_state = BT_CONFIG;
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 0fce54412ffd..af8e0a6243b7 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -1047,6 +1047,43 @@ static void clean_up_hci_complete(struct hci_dev *hdev, u8 status)
}
}
+static void hci_stop_discovery(struct hci_request *req)
+{
+ struct hci_dev *hdev = req->hdev;
+ struct hci_cp_remote_name_req_cancel cp;
+ struct inquiry_entry *e;
+
+ switch (hdev->discovery.state) {
+ case DISCOVERY_FINDING:
+ if (test_bit(HCI_INQUIRY, &hdev->flags)) {
+ hci_req_add(req, HCI_OP_INQUIRY_CANCEL, 0, NULL);
+ } else {
+ cancel_delayed_work(&hdev->le_scan_disable);
+ hci_req_add_le_scan_disable(req);
+ }
+
+ break;
+
+ case DISCOVERY_RESOLVING:
+ e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY,
+ NAME_PENDING);
+ if (!e)
+ return;
+
+ bacpy(&cp.bdaddr, &e->data.bdaddr);
+ hci_req_add(req, HCI_OP_REMOTE_NAME_REQ_CANCEL, sizeof(cp),
+ &cp);
+
+ break;
+
+ default:
+ /* Passive scanning */
+ if (test_bit(HCI_LE_SCAN, &hdev->dev_flags))
+ hci_req_add_le_scan_disable(req);
+ break;
+ }
+}
+
static int clean_up_hci_state(struct hci_dev *hdev)
{
struct hci_request req;
@@ -1063,9 +1100,7 @@ static int clean_up_hci_state(struct hci_dev *hdev)
if (test_bit(HCI_ADVERTISING, &hdev->dev_flags))
disable_advertising(&req);
- if (test_bit(HCI_LE_SCAN, &hdev->dev_flags)) {
- hci_req_add_le_scan_disable(&req);
- }
+ hci_stop_discovery(&req);
list_for_each_entry(conn, &hdev->conn_hash.list, list) {
struct hci_cp_disconnect dc;
@@ -2996,8 +3031,13 @@ static int user_pairing_resp(struct sock *sk, struct hci_dev *hdev,
}
if (addr->type == BDADDR_LE_PUBLIC || addr->type == BDADDR_LE_RANDOM) {
- /* Continue with pairing via SMP */
+ /* Continue with pairing via SMP. The hdev lock must be
+ * released as SMP may try to recquire it for crypto
+ * purposes.
+ */
+ hci_dev_unlock(hdev);
err = smp_user_confirm_reply(conn, mgmt_op, passkey);
+ hci_dev_lock(hdev);
if (!err)
err = cmd_complete(sk, hdev->id, mgmt_op,
@@ -3574,8 +3614,6 @@ static int stop_discovery(struct sock *sk, struct hci_dev *hdev, void *data,
{
struct mgmt_cp_stop_discovery *mgmt_cp = data;
struct pending_cmd *cmd;
- struct hci_cp_remote_name_req_cancel cp;
- struct inquiry_entry *e;
struct hci_request req;
int err;
@@ -3605,52 +3643,22 @@ static int stop_discovery(struct sock *sk, struct hci_dev *hdev, void *data,
hci_req_init(&req, hdev);
- switch (hdev->discovery.state) {
- case DISCOVERY_FINDING:
- if (test_bit(HCI_INQUIRY, &hdev->flags)) {
- hci_req_add(&req, HCI_OP_INQUIRY_CANCEL, 0, NULL);
- } else {
- cancel_delayed_work(&hdev->le_scan_disable);
-
- hci_req_add_le_scan_disable(&req);
- }
-
- break;
+ hci_stop_discovery(&req);
- case DISCOVERY_RESOLVING:
- e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY,
- NAME_PENDING);
- if (!e) {
- mgmt_pending_remove(cmd);
- err = cmd_complete(sk, hdev->id,
- MGMT_OP_STOP_DISCOVERY, 0,
- &mgmt_cp->type,
- sizeof(mgmt_cp->type));
- hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
- goto unlock;
- }
-
- bacpy(&cp.bdaddr, &e->data.bdaddr);
- hci_req_add(&req, HCI_OP_REMOTE_NAME_REQ_CANCEL, sizeof(cp),
- &cp);
-
- break;
-
- default:
- BT_DBG("unknown discovery state %u", hdev->discovery.state);
-
- mgmt_pending_remove(cmd);
- err = cmd_complete(sk, hdev->id, MGMT_OP_STOP_DISCOVERY,
- MGMT_STATUS_FAILED, &mgmt_cp->type,
- sizeof(mgmt_cp->type));
+ err = hci_req_run(&req, stop_discovery_complete);
+ if (!err) {
+ hci_discovery_set_state(hdev, DISCOVERY_STOPPING);
goto unlock;
}
- err = hci_req_run(&req, stop_discovery_complete);
- if (err < 0)
- mgmt_pending_remove(cmd);
- else
- hci_discovery_set_state(hdev, DISCOVERY_STOPPING);
+ mgmt_pending_remove(cmd);
+
+ /* If no HCI commands were sent we're done */
+ if (err == -ENODATA) {
+ err = cmd_complete(sk, hdev->id, MGMT_OP_STOP_DISCOVERY, 0,
+ &mgmt_cp->type, sizeof(mgmt_cp->type));
+ hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
+ }
unlock:
hci_dev_unlock(hdev);
diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c
index 3d1cc164557d..f2829a7932e2 100644
--- a/net/bluetooth/smp.c
+++ b/net/bluetooth/smp.c
@@ -544,7 +544,7 @@ static u8 smp_random(struct smp_chan *smp)
hci_le_start_enc(hcon, ediv, rand, stk);
hcon->enc_key_size = smp->enc_key_size;
} else {
- u8 stk[16];
+ u8 stk[16], auth;
__le64 rand = 0;
__le16 ediv = 0;
@@ -556,8 +556,13 @@ static u8 smp_random(struct smp_chan *smp)
memset(stk + smp->enc_key_size, 0,
SMP_MAX_ENC_KEY_SIZE - smp->enc_key_size);
+ if (hcon->pending_sec_level == BT_SECURITY_HIGH)
+ auth = 1;
+ else
+ auth = 0;
+
hci_add_ltk(hcon->hdev, &hcon->dst, hcon->dst_type,
- HCI_SMP_STK_SLAVE, 0, stk, smp->enc_key_size,
+ HCI_SMP_STK_SLAVE, auth, stk, smp->enc_key_size,
ediv, rand);
}
diff --git a/net/core/dst.c b/net/core/dst.c
index 80d6286c8b62..a028409ee438 100644
--- a/net/core/dst.c
+++ b/net/core/dst.c
@@ -269,6 +269,15 @@ again:
}
EXPORT_SYMBOL(dst_destroy);
+static void dst_destroy_rcu(struct rcu_head *head)
+{
+ struct dst_entry *dst = container_of(head, struct dst_entry, rcu_head);
+
+ dst = dst_destroy(dst);
+ if (dst)
+ __dst_free(dst);
+}
+
void dst_release(struct dst_entry *dst)
{
if (dst) {
@@ -276,11 +285,8 @@ void dst_release(struct dst_entry *dst)
newrefcnt = atomic_dec_return(&dst->__refcnt);
WARN_ON(newrefcnt < 0);
- if (unlikely(dst->flags & DST_NOCACHE) && !newrefcnt) {
- dst = dst_destroy(dst);
- if (dst)
- __dst_free(dst);
- }
+ if (unlikely(dst->flags & DST_NOCACHE) && !newrefcnt)
+ call_rcu(&dst->rcu_head, dst_destroy_rcu);
}
}
EXPORT_SYMBOL(dst_release);
diff --git a/net/core/filter.c b/net/core/filter.c
index 735fad897496..1dbf6462f766 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -840,11 +840,11 @@ int sk_convert_filter(struct sock_filter *prog, int len,
BUILD_BUG_ON(BPF_MEMWORDS * sizeof(u32) > MAX_BPF_STACK);
BUILD_BUG_ON(BPF_REG_FP + 1 != MAX_BPF_REG);
- if (len <= 0 || len >= BPF_MAXINSNS)
+ if (len <= 0 || len > BPF_MAXINSNS)
return -EINVAL;
if (new_prog) {
- addrs = kzalloc(len * sizeof(*addrs), GFP_KERNEL);
+ addrs = kcalloc(len, sizeof(*addrs), GFP_KERNEL);
if (!addrs)
return -ENOMEM;
}
@@ -1101,7 +1101,7 @@ static int check_load_and_stores(struct sock_filter *filter, int flen)
BUILD_BUG_ON(BPF_MEMWORDS > 16);
- masks = kmalloc(flen * sizeof(*masks), GFP_KERNEL);
+ masks = kmalloc_array(flen, sizeof(*masks), GFP_KERNEL);
if (!masks)
return -ENOMEM;
@@ -1382,7 +1382,7 @@ static struct sk_filter *__sk_migrate_realloc(struct sk_filter *fp,
fp_new = sock_kmalloc(sk, len, GFP_KERNEL);
if (fp_new) {
*fp_new = *fp;
- /* As we're kepping orig_prog in fp_new along,
+ /* As we're keeping orig_prog in fp_new along,
* we need to make sure we're not evicting it
* from the old fp.
*/
@@ -1524,8 +1524,8 @@ static struct sk_filter *__sk_prepare_filter(struct sk_filter *fp,
/**
* sk_unattached_filter_create - create an unattached filter
- * @fprog: the filter program
* @pfp: the unattached filter that is created
+ * @fprog: the filter program
*
* Create a filter independent of any socket. We first run some
* sanity checks on it to make sure it does not explode on us later.
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 9cd5344fad73..c1a33033cbe2 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -2993,7 +2993,7 @@ struct sk_buff *skb_segment(struct sk_buff *head_skb,
skb_put(nskb, len),
len, 0);
SKB_GSO_CB(nskb)->csum_start =
- skb_headroom(nskb) + offset;
+ skb_headroom(nskb) + doffset;
continue;
}
diff --git a/net/ipv4/ip_tunnel.c b/net/ipv4/ip_tunnel.c
index 097b3e7c1e8f..54b6731dab55 100644
--- a/net/ipv4/ip_tunnel.c
+++ b/net/ipv4/ip_tunnel.c
@@ -73,12 +73,7 @@ static void __tunnel_dst_set(struct ip_tunnel_dst *idst,
{
struct dst_entry *old_dst;
- if (dst) {
- if (dst->flags & DST_NOCACHE)
- dst = NULL;
- else
- dst_clone(dst);
- }
+ dst_clone(dst);
old_dst = xchg((__force struct dst_entry **)&idst->dst, dst);
dst_release(old_dst);
}
@@ -108,13 +103,14 @@ static struct rtable *tunnel_rtable_get(struct ip_tunnel *t, u32 cookie)
rcu_read_lock();
dst = rcu_dereference(this_cpu_ptr(t->dst_cache)->dst);
+ if (dst && !atomic_inc_not_zero(&dst->__refcnt))
+ dst = NULL;
if (dst) {
if (dst->obsolete && dst->ops->check(dst, cookie) == NULL) {
- rcu_read_unlock();
tunnel_dst_reset(t);
- return NULL;
+ dst_release(dst);
+ dst = NULL;
}
- dst_hold(dst);
}
rcu_read_unlock();
return (struct rtable *)dst;
diff --git a/net/ipv4/tcp_fastopen.c b/net/ipv4/tcp_fastopen.c
index 62e48cf84e60..9771563ab564 100644
--- a/net/ipv4/tcp_fastopen.c
+++ b/net/ipv4/tcp_fastopen.c
@@ -131,7 +131,7 @@ static bool tcp_fastopen_create_child(struct sock *sk,
struct dst_entry *dst,
struct request_sock *req)
{
- struct tcp_sock *tp = tcp_sk(sk);
+ struct tcp_sock *tp;
struct request_sock_queue *queue = &inet_csk(sk)->icsk_accept_queue;
struct sock *child;
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 40661fc1e233..b5c23756965a 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -1162,7 +1162,7 @@ static int tcp_match_skb_to_sack(struct sock *sk, struct sk_buff *skb,
unsigned int new_len = (pkt_len / mss) * mss;
if (!in_sack && new_len < pkt_len) {
new_len += mss;
- if (new_len > skb->len)
+ if (new_len >= skb->len)
return 0;
}
pkt_len = new_len;
diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
index c42e83d2751c..581a6584ed0c 100644
--- a/net/netfilter/ipvs/ip_vs_ctl.c
+++ b/net/netfilter/ipvs/ip_vs_ctl.c
@@ -3778,6 +3778,7 @@ static void __net_exit ip_vs_control_net_cleanup_sysctl(struct net *net)
cancel_delayed_work_sync(&ipvs->defense_work);
cancel_work_sync(&ipvs->defense_work.work);
unregister_net_sysctl_table(ipvs->sysctl_hdr);
+ ip_vs_stop_estimator(net, &ipvs->tot_stats);
}
#else
@@ -3840,7 +3841,6 @@ void __net_exit ip_vs_control_net_cleanup(struct net *net)
struct netns_ipvs *ipvs = net_ipvs(net);
ip_vs_trash_cleanup(net);
- ip_vs_stop_estimator(net, &ipvs->tot_stats);
ip_vs_control_net_cleanup_sysctl(net);
remove_proc_entry("ip_vs_stats_percpu", net->proc_net);
remove_proc_entry("ip_vs_stats", net->proc_net);
diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c
index 58579634427d..300ed1eec729 100644
--- a/net/netfilter/nf_conntrack_netlink.c
+++ b/net/netfilter/nf_conntrack_netlink.c
@@ -597,6 +597,9 @@ ctnetlink_nlmsg_size(const struct nf_conn *ct)
#ifdef CONFIG_NF_CONNTRACK_MARK
+ nla_total_size(sizeof(u_int32_t)) /* CTA_MARK */
#endif
+#ifdef CONFIG_NF_CONNTRACK_ZONES
+ + nla_total_size(sizeof(u_int16_t)) /* CTA_ZONE */
+#endif
+ ctnetlink_proto_size(ct)
+ ctnetlink_label_size(ct)
;
@@ -1150,7 +1153,7 @@ static int ctnetlink_done_list(struct netlink_callback *cb)
static int
ctnetlink_dump_list(struct sk_buff *skb, struct netlink_callback *cb, bool dying)
{
- struct nf_conn *ct, *last = NULL;
+ struct nf_conn *ct, *last;
struct nf_conntrack_tuple_hash *h;
struct hlist_nulls_node *n;
struct nfgenmsg *nfmsg = nlmsg_data(cb->nlh);
@@ -1163,8 +1166,7 @@ ctnetlink_dump_list(struct sk_buff *skb, struct netlink_callback *cb, bool dying
if (cb->args[2])
return 0;
- if (cb->args[0] == nr_cpu_ids)
- return 0;
+ last = (struct nf_conn *)cb->args[1];
for (cpu = cb->args[0]; cpu < nr_cpu_ids; cpu++) {
struct ct_pcpu *pcpu;
@@ -1174,7 +1176,6 @@ ctnetlink_dump_list(struct sk_buff *skb, struct netlink_callback *cb, bool dying
pcpu = per_cpu_ptr(net->ct.pcpu_lists, cpu);
spin_lock_bh(&pcpu->lock);
- last = (struct nf_conn *)cb->args[1];
list = dying ? &pcpu->dying : &pcpu->unconfirmed;
restart:
hlist_nulls_for_each_entry(h, n, list, hnnode) {
@@ -1193,7 +1194,9 @@ restart:
ct);
rcu_read_unlock();
if (res < 0) {
- nf_conntrack_get(&ct->ct_general);
+ if (!atomic_inc_not_zero(&ct->ct_general.use))
+ continue;
+ cb->args[0] = cpu;
cb->args[1] = (unsigned long)ct;
spin_unlock_bh(&pcpu->lock);
goto out;
@@ -1202,10 +1205,10 @@ restart:
if (cb->args[1]) {
cb->args[1] = 0;
goto restart;
- } else
- cb->args[2] = 1;
+ }
spin_unlock_bh(&pcpu->lock);
}
+ cb->args[2] = 1;
out:
if (last)
nf_ct_put(last);
@@ -2040,6 +2043,9 @@ ctnetlink_nfqueue_build_size(const struct nf_conn *ct)
#ifdef CONFIG_NF_CONNTRACK_MARK
+ nla_total_size(sizeof(u_int32_t)) /* CTA_MARK */
#endif
+#ifdef CONFIG_NF_CONNTRACK_ZONES
+ + nla_total_size(sizeof(u_int16_t)) /* CTA_ZONE */
+#endif
+ ctnetlink_proto_size(ct)
;
}
diff --git a/net/netfilter/nf_nat_core.c b/net/netfilter/nf_nat_core.c
index 09096a670c45..a49907b1dabc 100644
--- a/net/netfilter/nf_nat_core.c
+++ b/net/netfilter/nf_nat_core.c
@@ -525,6 +525,39 @@ static int nf_nat_proto_remove(struct nf_conn *i, void *data)
return i->status & IPS_NAT_MASK ? 1 : 0;
}
+static int nf_nat_proto_clean(struct nf_conn *ct, void *data)
+{
+ struct nf_conn_nat *nat = nfct_nat(ct);
+
+ if (nf_nat_proto_remove(ct, data))
+ return 1;
+
+ if (!nat || !nat->ct)
+ return 0;
+
+ /* This netns is being destroyed, and conntrack has nat null binding.
+ * Remove it from bysource hash, as the table will be freed soon.
+ *
+ * Else, when the conntrack is destoyed, nf_nat_cleanup_conntrack()
+ * will delete entry from already-freed table.
+ */
+ if (!del_timer(&ct->timeout))
+ return 1;
+
+ spin_lock_bh(&nf_nat_lock);
+ hlist_del_rcu(&nat->bysource);
+ ct->status &= ~IPS_NAT_DONE_MASK;
+ nat->ct = NULL;
+ spin_unlock_bh(&nf_nat_lock);
+
+ add_timer(&ct->timeout);
+
+ /* don't delete conntrack. Although that would make things a lot
+ * simpler, we'd end up flushing all conntracks on nat rmmod.
+ */
+ return 0;
+}
+
static void nf_nat_l4proto_clean(u8 l3proto, u8 l4proto)
{
struct nf_nat_proto_clean clean = {
@@ -795,7 +828,7 @@ static void __net_exit nf_nat_net_exit(struct net *net)
{
struct nf_nat_proto_clean clean = {};
- nf_ct_iterate_cleanup(net, &nf_nat_proto_remove, &clean, 0, 0);
+ nf_ct_iterate_cleanup(net, nf_nat_proto_clean, &clean, 0, 0);
synchronize_rcu();
nf_ct_free_hashtable(net->ct.nat_bysource, net->ct.nat_htable_size);
}
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index 624e083125b9..ab4566cfcbe4 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -1730,6 +1730,9 @@ static int nf_tables_newrule(struct sock *nlsk, struct sk_buff *skb,
if (!create || nlh->nlmsg_flags & NLM_F_REPLACE)
return -EINVAL;
handle = nf_tables_alloc_handle(table);
+
+ if (chain->use == UINT_MAX)
+ return -EOVERFLOW;
}
if (nla[NFTA_RULE_POSITION]) {
@@ -1789,14 +1792,15 @@ static int nf_tables_newrule(struct sock *nlsk, struct sk_buff *skb,
if (nlh->nlmsg_flags & NLM_F_REPLACE) {
if (nft_rule_is_active_next(net, old_rule)) {
- trans = nft_trans_rule_add(&ctx, NFT_MSG_NEWRULE,
+ trans = nft_trans_rule_add(&ctx, NFT_MSG_DELRULE,
old_rule);
if (trans == NULL) {
err = -ENOMEM;
goto err2;
}
nft_rule_disactivate_next(net, old_rule);
- list_add_tail(&rule->list, &old_rule->list);
+ chain->use--;
+ list_add_tail_rcu(&rule->list, &old_rule->list);
} else {
err = -ENOENT;
goto err2;
@@ -1826,6 +1830,7 @@ err3:
list_del_rcu(&nft_trans_rule(trans)->list);
nft_rule_clear(net, nft_trans_rule(trans));
nft_trans_destroy(trans);
+ chain->use++;
}
err2:
nf_tables_rule_destroy(&ctx, rule);
@@ -2845,7 +2850,7 @@ static int nf_tables_dump_set(struct sk_buff *skb, struct netlink_callback *cb)
goto nla_put_failure;
nfmsg = nlmsg_data(nlh);
- nfmsg->nfgen_family = NFPROTO_UNSPEC;
+ nfmsg->nfgen_family = ctx.afi->family;
nfmsg->version = NFNETLINK_V0;
nfmsg->res_id = 0;
diff --git a/net/netfilter/nft_compat.c b/net/netfilter/nft_compat.c
index 8a779be832fb..1840989092ed 100644
--- a/net/netfilter/nft_compat.c
+++ b/net/netfilter/nft_compat.c
@@ -195,6 +195,15 @@ static void
nft_target_destroy(const struct nft_ctx *ctx, const struct nft_expr *expr)
{
struct xt_target *target = expr->ops->data;
+ void *info = nft_expr_priv(expr);
+ struct xt_tgdtor_param par;
+
+ par.net = ctx->net;
+ par.target = target;
+ par.targinfo = info;
+ par.family = ctx->afi->family;
+ if (par.target->destroy != NULL)
+ par.target->destroy(&par);
module_put(target->me);
}
@@ -382,6 +391,15 @@ static void
nft_match_destroy(const struct nft_ctx *ctx, const struct nft_expr *expr)
{
struct xt_match *match = expr->ops->data;
+ void *info = nft_expr_priv(expr);
+ struct xt_mtdtor_param par;
+
+ par.net = ctx->net;
+ par.match = match;
+ par.matchinfo = info;
+ par.family = ctx->afi->family;
+ if (par.match->destroy != NULL)
+ par.match->destroy(&par);
module_put(match->me);
}
diff --git a/net/netfilter/nft_nat.c b/net/netfilter/nft_nat.c
index a0195d28bcfc..79ff58cd36dc 100644
--- a/net/netfilter/nft_nat.c
+++ b/net/netfilter/nft_nat.c
@@ -175,12 +175,14 @@ static int nft_nat_dump(struct sk_buff *skb, const struct nft_expr *expr)
if (nla_put_be32(skb,
NFTA_NAT_REG_ADDR_MAX, htonl(priv->sreg_addr_max)))
goto nla_put_failure;
- if (nla_put_be32(skb,
- NFTA_NAT_REG_PROTO_MIN, htonl(priv->sreg_proto_min)))
- goto nla_put_failure;
- if (nla_put_be32(skb,
- NFTA_NAT_REG_PROTO_MAX, htonl(priv->sreg_proto_max)))
- goto nla_put_failure;
+ if (priv->sreg_proto_min) {
+ if (nla_put_be32(skb, NFTA_NAT_REG_PROTO_MIN,
+ htonl(priv->sreg_proto_min)))
+ goto nla_put_failure;
+ if (nla_put_be32(skb, NFTA_NAT_REG_PROTO_MAX,
+ htonl(priv->sreg_proto_max)))
+ goto nla_put_failure;
+ }
return 0;
nla_put_failure:
diff --git a/net/sctp/sysctl.c b/net/sctp/sysctl.c
index dcb19592761e..12c7e01c2677 100644
--- a/net/sctp/sysctl.c
+++ b/net/sctp/sysctl.c
@@ -321,41 +321,40 @@ static int proc_sctp_do_hmac_alg(struct ctl_table *ctl, int write,
loff_t *ppos)
{
struct net *net = current->nsproxy->net_ns;
- char tmp[8];
struct ctl_table tbl;
- int ret;
- int changed = 0;
+ bool changed = false;
char *none = "none";
+ char tmp[8];
+ int ret;
memset(&tbl, 0, sizeof(struct ctl_table));
if (write) {
tbl.data = tmp;
- tbl.maxlen = 8;
+ tbl.maxlen = sizeof(tmp);
} else {
tbl.data = net->sctp.sctp_hmac_alg ? : none;
tbl.maxlen = strlen(tbl.data);
}
- ret = proc_dostring(&tbl, write, buffer, lenp, ppos);
- if (write) {
+ ret = proc_dostring(&tbl, write, buffer, lenp, ppos);
+ if (write && ret == 0) {
#ifdef CONFIG_CRYPTO_MD5
if (!strncmp(tmp, "md5", 3)) {
net->sctp.sctp_hmac_alg = "md5";
- changed = 1;
+ changed = true;
}
#endif
#ifdef CONFIG_CRYPTO_SHA1
if (!strncmp(tmp, "sha1", 4)) {
net->sctp.sctp_hmac_alg = "sha1";
- changed = 1;
+ changed = true;
}
#endif
if (!strncmp(tmp, "none", 4)) {
net->sctp.sctp_hmac_alg = NULL;
- changed = 1;
+ changed = true;
}
-
if (!changed)
ret = -EINVAL;
}
@@ -368,11 +367,10 @@ static int proc_sctp_do_rto_min(struct ctl_table *ctl, int write,
loff_t *ppos)
{
struct net *net = current->nsproxy->net_ns;
- int new_value;
- struct ctl_table tbl;
unsigned int min = *(unsigned int *) ctl->extra1;
unsigned int max = *(unsigned int *) ctl->extra2;
- int ret;
+ struct ctl_table tbl;
+ int ret, new_value;
memset(&tbl, 0, sizeof(struct ctl_table));
tbl.maxlen = sizeof(unsigned int);
@@ -381,12 +379,15 @@ static int proc_sctp_do_rto_min(struct ctl_table *ctl, int write,
tbl.data = &new_value;
else
tbl.data = &net->sctp.rto_min;
+
ret = proc_dointvec(&tbl, write, buffer, lenp, ppos);
- if (write) {
- if (ret || new_value > max || new_value < min)
+ if (write && ret == 0) {
+ if (new_value > max || new_value < min)
return -EINVAL;
+
net->sctp.rto_min = new_value;
}
+
return ret;
}
@@ -395,11 +396,10 @@ static int proc_sctp_do_rto_max(struct ctl_table *ctl, int write,
loff_t *ppos)
{
struct net *net = current->nsproxy->net_ns;
- int new_value;
- struct ctl_table tbl;
unsigned int min = *(unsigned int *) ctl->extra1;
unsigned int max = *(unsigned int *) ctl->extra2;
- int ret;
+ struct ctl_table tbl;
+ int ret, new_value;
memset(&tbl, 0, sizeof(struct ctl_table));
tbl.maxlen = sizeof(unsigned int);
@@ -408,12 +408,15 @@ static int proc_sctp_do_rto_max(struct ctl_table *ctl, int write,
tbl.data = &new_value;
else
tbl.data = &net->sctp.rto_max;
+
ret = proc_dointvec(&tbl, write, buffer, lenp, ppos);
- if (write) {
- if (ret || new_value > max || new_value < min)
+ if (write && ret == 0) {
+ if (new_value > max || new_value < min)
return -EINVAL;
+
net->sctp.rto_max = new_value;
}
+
return ret;
}
@@ -444,8 +447,7 @@ static int proc_sctp_do_auth(struct ctl_table *ctl, int write,
tbl.data = &net->sctp.auth_enable;
ret = proc_dointvec(&tbl, write, buffer, lenp, ppos);
-
- if (write) {
+ if (write && ret == 0) {
struct sock *sk = net->sctp.ctl_sock;
net->sctp.auth_enable = new_value;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-28 14:51:45 +0000