Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

net/batman-adv/hard-interface.c
  commit 690bb6fb64f5 ("batman-adv: Request iflink once in batadv-on-batadv check")
  commit 6ee3c393eeb7 ("batman-adv: Demote batadv-on-batadv skip error message")
https://lore.kernel.org/all/20220302163049.101957-1-sw@simonwunderlich.de/

net/smc/af_smc.c
  commit 4d08b7b57ece ("net/smc: Fix cleanup when register ULP fails")
  commit 462791bbfa35 ("net/smc: add sysctl interface for SMC")
https://lore.kernel.org/all/20220302112209.355def40@canb.auug.org.au/

Signed-off-by: Jakub Kicinski <kuba@kernel.org>

36 files changed, 351 insertions, 157 deletions

diff --git a/net/batman-adv/hard-interface.c b/net/batman-adv/hard-interface.c
index b25afc7ff59c..83fb51b6e299 100644
--- a/net/batman-adv/hard-interface.c
+++ b/net/batman-adv/hard-interface.c
@@ -149,22 +149,25 @@ static bool batadv_is_on_batman_iface(const struct net_device *net_dev)
 	struct net *net = dev_net(net_dev);
 	struct net_device *parent_dev;
 	struct net *parent_net;
+	int iflink;
 	bool ret;
 
 	/* check if this is a batman-adv mesh interface */
 	if (batadv_softif_is_valid(net_dev))
 		return true;
 
-	/* no more parents..stop recursion */
-	if (dev_get_iflink(net_dev) == 0 ||
-	    dev_get_iflink(net_dev) == net_dev->ifindex)
+	iflink = dev_get_iflink(net_dev);
+	if (iflink == 0)
 		return false;
 
 	parent_net = batadv_getlink_net(net_dev, net);
 
+	/* iflink to itself, most likely physical device */
+	if (net == parent_net && iflink == net_dev->ifindex)
+		return false;
+
 	/* recurse over the parent device */
-	parent_dev = __dev_get_by_index((struct net *)parent_net,
-					dev_get_iflink(net_dev));
+	parent_dev = __dev_get_by_index((struct net *)parent_net, iflink);
 	if (!parent_dev) {
 		pr_warn("Cannot find parent device. Skipping batadv-on-batadv check for %s\n",
 			net_dev->name);
@@ -214,14 +217,15 @@ static struct net_device *batadv_get_real_netdevice(struct net_device *netdev)
 	struct net_device *real_netdev = NULL;
 	struct net *real_net;
 	struct net *net;
-	int ifindex;
+	int iflink;
 
 	ASSERT_RTNL();
 
 	if (!netdev)
 		return NULL;
 
-	if (netdev->ifindex == dev_get_iflink(netdev)) {
+	iflink = dev_get_iflink(netdev);
+	if (iflink == 0) {
 		dev_hold(netdev);
 		return netdev;
 	}
@@ -231,9 +235,16 @@ static struct net_device *batadv_get_real_netdevice(struct net_device *netdev)
 		goto out;
 
 	net = dev_net(hard_iface->soft_iface);
-	ifindex = dev_get_iflink(netdev);
 	real_net = batadv_getlink_net(netdev, net);
-	real_netdev = dev_get_by_index(real_net, ifindex);
+
+	/* iflink to itself, most likely physical device */
+	if (net == real_net && netdev->ifindex == iflink) {
+		real_netdev = netdev;
+		dev_hold(real_netdev);
+		goto out;
+	}
+
+	real_netdev = dev_get_by_index(real_net, iflink);
 
 out:
 	batadv_hardif_put(hard_iface);
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 5bde0ec41177..b4782a6c1025 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -2739,6 +2739,7 @@ void hci_release_dev(struct hci_dev *hdev)
 	hci_dev_unlock(hdev);
 
 	ida_simple_remove(&hci_index_ida, hdev->id);
+	kfree_skb(hdev->sent_cmd);
 	kfree(hdev);
 }
 EXPORT_SYMBOL(hci_release_dev);
diff --git a/net/bluetooth/hci_sync.c b/net/bluetooth/hci_sync.c
index 6e71aa6b6fea..8fa57ef0bbc9 100644
--- a/net/bluetooth/hci_sync.c
+++ b/net/bluetooth/hci_sync.c
@@ -1844,6 +1844,7 @@ static u8 hci_update_accept_list_sync(struct hci_dev *hdev)
 	struct bdaddr_list *b, *t;
 	u8 num_entries = 0;
 	bool pend_conn, pend_report;
+	u8 filter_policy;
 	int err;
 
 	/* Pause advertising if resolving list can be used as controllers are
@@ -1930,6 +1931,8 @@ static u8 hci_update_accept_list_sync(struct hci_dev *hdev)
 		err = -EINVAL;
 
 done:
+	filter_policy = err ? 0x00 : 0x01;
+
 	/* Enable address resolution when LL Privacy is enabled. */
 	err = hci_le_set_addr_resolution_enable_sync(hdev, 0x01);
 	if (err)
@@ -1940,7 +1943,7 @@ done:
 		hci_resume_advertising_sync(hdev);
 
 	/* Select filter policy to use accept list */
-	return err ? 0x00 : 0x01;
+	return filter_policy;
 }
 
 /* Returns true if an le connection is in the scanning state */
@@ -3265,10 +3268,10 @@ static int hci_le_set_event_mask_sync(struct hci_dev *hdev)
 	if (hdev->le_features[0] & HCI_LE_DATA_LEN_EXT)
 		events[0] |= 0x40;	/* LE Data Length Change */
 
-	/* If the controller supports LL Privacy feature, enable
-	 * the corresponding event.
+	/* If the controller supports LL Privacy feature or LE Extended Adv,
+	 * enable the corresponding event.
 	 */
-	if (hdev->le_features[0] & HCI_LE_LL_PRIVACY)
+	if (use_enhanced_conn_complete(hdev))
 		events[1] |= 0x02;	/* LE Enhanced Connection Complete */
 
 	/* If the controller supports Extended Scanner Filter
@@ -4109,9 +4112,9 @@ int hci_dev_close_sync(struct hci_dev *hdev)
 	hci_inquiry_cache_flush(hdev);
 	hci_pend_le_actions_clear(hdev);
 	hci_conn_hash_flush(hdev);
-	hci_dev_unlock(hdev);
-
+	/* Prevent data races on hdev->smp_data or hdev->smp_bredr_data */
 	smp_unregister(hdev);
+	hci_dev_unlock(hdev);
 
 	hci_sock_dev_event(hdev, HCI_DEV_DOWN);
 
@@ -5188,7 +5191,7 @@ static int hci_le_ext_create_conn_sync(struct hci_dev *hdev,
 	return __hci_cmd_sync_status_sk(hdev, HCI_OP_LE_EXT_CREATE_CONN,
 					plen, data,
 					HCI_EV_LE_ENHANCED_CONN_COMPLETE,
-					HCI_CMD_TIMEOUT, NULL);
+					conn->conn_timeout, NULL);
 }
 
 int hci_le_create_conn_sync(struct hci_dev *hdev, struct hci_conn *conn)
@@ -5273,9 +5276,18 @@ int hci_le_create_conn_sync(struct hci_dev *hdev, struct hci_conn *conn)
 	cp.min_ce_len = cpu_to_le16(0x0000);
 	cp.max_ce_len = cpu_to_le16(0x0000);
 
+	/* BLUETOOTH CORE SPECIFICATION Version 5.3 | Vol 4, Part E page 2261:
+	 *
+	 * If this event is unmasked and the HCI_LE_Connection_Complete event
+	 * is unmasked, only the HCI_LE_Enhanced_Connection_Complete event is
+	 * sent when a new connection has been created.
+	 */
 	err = __hci_cmd_sync_status_sk(hdev, HCI_OP_LE_CREATE_CONN,
-				       sizeof(cp), &cp, HCI_EV_LE_CONN_COMPLETE,
-				       HCI_CMD_TIMEOUT, NULL);
+				       sizeof(cp), &cp,
+				       use_enhanced_conn_complete(hdev) ?
+				       HCI_EV_LE_ENHANCED_CONN_COMPLETE :
+				       HCI_EV_LE_CONN_COMPLETE,
+				       conn->conn_timeout, NULL);
 
 done:
 	/* Re-enable advertising after the connection attempt is finished. */
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 5dd684e0b259..71aff6e65e7c 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -1220,7 +1220,13 @@ static int new_settings(struct hci_dev *hdev, struct sock *skip)
 static void mgmt_set_powered_complete(struct hci_dev *hdev, void *data, int err)
 {
 	struct mgmt_pending_cmd *cmd = data;
-	struct mgmt_mode *cp = cmd->param;
+	struct mgmt_mode *cp;
+
+	/* Make sure cmd still outstanding. */
+	if (cmd != pending_find(MGMT_OP_SET_POWERED, hdev))
+		return;
+
+	cp = cmd->param;
 
 	bt_dev_dbg(hdev, "err %d", err);
 
@@ -1244,7 +1250,7 @@ static void mgmt_set_powered_complete(struct hci_dev *hdev, void *data, int err)
 				mgmt_status(err));
 	}
 
-	mgmt_pending_free(cmd);
+	mgmt_pending_remove(cmd);
 }
 
 static int set_powered_sync(struct hci_dev *hdev, void *data)
@@ -1283,7 +1289,7 @@ static int set_powered(struct sock *sk, struct hci_dev *hdev, void *data,
 		goto failed;
 	}
 
-	cmd = mgmt_pending_new(sk, MGMT_OP_SET_POWERED, hdev, data, len);
+	cmd = mgmt_pending_add(sk, MGMT_OP_SET_POWERED, hdev, data, len);
 	if (!cmd) {
 		err = -ENOMEM;
 		goto failed;
@@ -1292,6 +1298,9 @@ static int set_powered(struct sock *sk, struct hci_dev *hdev, void *data,
 	err = hci_cmd_sync_queue(hdev, set_powered_sync, cmd,
 				 mgmt_set_powered_complete);
 
+	if (err < 0)
+		mgmt_pending_remove(cmd);
+
 failed:
 	hci_dev_unlock(hdev);
 	return err;
@@ -1385,6 +1394,10 @@ static void mgmt_set_discoverable_complete(struct hci_dev *hdev, void *data,
 
 	bt_dev_dbg(hdev, "err %d", err);
 
+	/* Make sure cmd still outstanding. */
+	if (cmd != pending_find(MGMT_OP_SET_DISCOVERABLE, hdev))
+		return;
+
 	hci_dev_lock(hdev);
 
 	if (err) {
@@ -1404,7 +1417,7 @@ static void mgmt_set_discoverable_complete(struct hci_dev *hdev, void *data,
 	new_settings(hdev, cmd->sk);
 
 done:
-	mgmt_pending_free(cmd);
+	mgmt_pending_remove(cmd);
 	hci_dev_unlock(hdev);
 }
 
@@ -1513,7 +1526,7 @@ static int set_discoverable(struct sock *sk, struct hci_dev *hdev, void *data,
 		goto failed;
 	}
 
-	cmd = mgmt_pending_new(sk, MGMT_OP_SET_DISCOVERABLE, hdev, data, len);
+	cmd = mgmt_pending_add(sk, MGMT_OP_SET_DISCOVERABLE, hdev, data, len);
 	if (!cmd) {
 		err = -ENOMEM;
 		goto failed;
@@ -1540,6 +1553,9 @@ static int set_discoverable(struct sock *sk, struct hci_dev *hdev, void *data,
 	err = hci_cmd_sync_queue(hdev, set_discoverable_sync, cmd,
 				 mgmt_set_discoverable_complete);
 
+	if (err < 0)
+		mgmt_pending_remove(cmd);
+
 failed:
 	hci_dev_unlock(hdev);
 	return err;
@@ -1552,6 +1568,10 @@ static void mgmt_set_connectable_complete(struct hci_dev *hdev, void *data,
 
 	bt_dev_dbg(hdev, "err %d", err);
 
+	/* Make sure cmd still outstanding. */
+	if (cmd != pending_find(MGMT_OP_SET_CONNECTABLE, hdev))
+		return;
+
 	hci_dev_lock(hdev);
 
 	if (err) {
@@ -1564,7 +1584,9 @@ static void mgmt_set_connectable_complete(struct hci_dev *hdev, void *data,
 	new_settings(hdev, cmd->sk);
 
 done:
-	mgmt_pending_free(cmd);
+	if (cmd)
+		mgmt_pending_remove(cmd);
+
 	hci_dev_unlock(hdev);
 }
 
@@ -1636,7 +1658,7 @@ static int set_connectable(struct sock *sk, struct hci_dev *hdev, void *data,
 		goto failed;
 	}
 
-	cmd = mgmt_pending_new(sk, MGMT_OP_SET_CONNECTABLE, hdev, data, len);
+	cmd = mgmt_pending_add(sk, MGMT_OP_SET_CONNECTABLE, hdev, data, len);
 	if (!cmd) {
 		err = -ENOMEM;
 		goto failed;
@@ -1656,6 +1678,9 @@ static int set_connectable(struct sock *sk, struct hci_dev *hdev, void *data,
 	err = hci_cmd_sync_queue(hdev, set_connectable_sync, cmd,
 				 mgmt_set_connectable_complete);
 
+	if (err < 0)
+		mgmt_pending_remove(cmd);
+
 failed:
 	hci_dev_unlock(hdev);
 	return err;
@@ -1776,6 +1801,10 @@ static void set_ssp_complete(struct hci_dev *hdev, void *data, int err)
 	u8 enable = cp->val;
 	bool changed;
 
+	/* Make sure cmd still outstanding. */
+	if (cmd != pending_find(MGMT_OP_SET_SSP, hdev))
+		return;
+
 	if (err) {
 		u8 mgmt_err = mgmt_status(err);
 
@@ -3323,6 +3352,9 @@ static void set_name_complete(struct hci_dev *hdev, void *data, int err)
 
 	bt_dev_dbg(hdev, "err %d", err);
 
+	if (cmd != pending_find(MGMT_OP_SET_LOCAL_NAME, hdev))
+		return;
+
 	if (status) {
 		mgmt_cmd_status(cmd->sk, hdev->id, MGMT_OP_SET_LOCAL_NAME,
 				status);
@@ -3495,6 +3527,9 @@ static void set_default_phy_complete(struct hci_dev *hdev, void *data, int err)
 	struct sk_buff *skb = cmd->skb;
 	u8 status = mgmt_status(err);
 
+	if (cmd != pending_find(MGMT_OP_SET_PHY_CONFIGURATION, hdev))
+		return;
+
 	if (!status) {
 		if (!skb)
 			status = MGMT_STATUS_FAILED;
@@ -3761,13 +3796,6 @@ static int set_wideband_speech(struct sock *sk, struct hci_dev *hdev,
 
 	hci_dev_lock(hdev);
 
-	if (pending_find(MGMT_OP_SET_WIDEBAND_SPEECH, hdev)) {
-		err = mgmt_cmd_status(sk, hdev->id,
-				      MGMT_OP_SET_WIDEBAND_SPEECH,
-				      MGMT_STATUS_BUSY);
-		goto unlock;
-	}
-
 	if (hdev_is_powered(hdev) &&
 	    !!cp->val != hci_dev_test_flag(hdev,
 					   HCI_WIDEBAND_SPEECH_ENABLED)) {
@@ -5038,12 +5066,6 @@ static int read_local_oob_data(struct sock *sk, struct hci_dev *hdev,
 		goto unlock;
 	}
 
-	if (pending_find(MGMT_OP_READ_LOCAL_OOB_DATA, hdev)) {
-		err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_DATA,
-				      MGMT_STATUS_BUSY);
-		goto unlock;
-	}
-
 	cmd = mgmt_pending_new(sk, MGMT_OP_READ_LOCAL_OOB_DATA, hdev, NULL, 0);
 	if (!cmd)
 		err = -ENOMEM;
@@ -5263,11 +5285,16 @@ static void start_discovery_complete(struct hci_dev *hdev, void *data, int err)
 {
 	struct mgmt_pending_cmd *cmd = data;
 
+	if (cmd != pending_find(MGMT_OP_START_DISCOVERY, hdev) &&
+	    cmd != pending_find(MGMT_OP_START_LIMITED_DISCOVERY, hdev) &&
+	    cmd != pending_find(MGMT_OP_START_SERVICE_DISCOVERY, hdev))
+		return;
+
 	bt_dev_dbg(hdev, "err %d", err);
 
 	mgmt_cmd_complete(cmd->sk, cmd->index, cmd->opcode, mgmt_status(err),
 			  cmd->param, 1);
-	mgmt_pending_free(cmd);
+	mgmt_pending_remove(cmd);
 
 	hci_discovery_set_state(hdev, err ? DISCOVERY_STOPPED:
 				DISCOVERY_FINDING);
@@ -5329,7 +5356,7 @@ static int start_discovery_internal(struct sock *sk, struct hci_dev *hdev,
 	else
 		hdev->discovery.limited = false;
 
-	cmd = mgmt_pending_new(sk, op, hdev, data, len);
+	cmd = mgmt_pending_add(sk, op, hdev, data, len);
 	if (!cmd) {
 		err = -ENOMEM;
 		goto failed;
@@ -5338,7 +5365,7 @@ static int start_discovery_internal(struct sock *sk, struct hci_dev *hdev,
 	err = hci_cmd_sync_queue(hdev, start_discovery_sync, cmd,
 				 start_discovery_complete);
 	if (err < 0) {
-		mgmt_pending_free(cmd);
+		mgmt_pending_remove(cmd);
 		goto failed;
 	}
 
@@ -5432,7 +5459,7 @@ static int start_service_discovery(struct sock *sk, struct hci_dev *hdev,
 		goto failed;
 	}
 
-	cmd = mgmt_pending_new(sk, MGMT_OP_START_SERVICE_DISCOVERY,
+	cmd = mgmt_pending_add(sk, MGMT_OP_START_SERVICE_DISCOVERY,
 			       hdev, data, len);
 	if (!cmd) {
 		err = -ENOMEM;
@@ -5465,7 +5492,7 @@ static int start_service_discovery(struct sock *sk, struct hci_dev *hdev,
 	err = hci_cmd_sync_queue(hdev, start_discovery_sync, cmd,
 				 start_discovery_complete);
 	if (err < 0) {
-		mgmt_pending_free(cmd);
+		mgmt_pending_remove(cmd);
 		goto failed;
 	}
 
@@ -5497,11 +5524,14 @@ static void stop_discovery_complete(struct hci_dev *hdev, void *data, int err)
 {
 	struct mgmt_pending_cmd *cmd = data;
 
+	if (cmd != pending_find(MGMT_OP_STOP_DISCOVERY, hdev))
+		return;
+
 	bt_dev_dbg(hdev, "err %d", err);
 
 	mgmt_cmd_complete(cmd->sk, cmd->index, cmd->opcode, mgmt_status(err),
 			  cmd->param, 1);
-	mgmt_pending_free(cmd);
+	mgmt_pending_remove(cmd);
 
 	if (!err)
 		hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
@@ -5537,7 +5567,7 @@ static int stop_discovery(struct sock *sk, struct hci_dev *hdev, void *data,
 		goto unlock;
 	}
 
-	cmd = mgmt_pending_new(sk, MGMT_OP_STOP_DISCOVERY, hdev, data, len);
+	cmd = mgmt_pending_add(sk, MGMT_OP_STOP_DISCOVERY, hdev, data, len);
 	if (!cmd) {
 		err = -ENOMEM;
 		goto unlock;
@@ -5546,7 +5576,7 @@ static int stop_discovery(struct sock *sk, struct hci_dev *hdev, void *data,
 	err = hci_cmd_sync_queue(hdev, stop_discovery_sync, cmd,
 				 stop_discovery_complete);
 	if (err < 0) {
-		mgmt_pending_free(cmd);
+		mgmt_pending_remove(cmd);
 		goto unlock;
 	}
 
@@ -7476,6 +7506,9 @@ static void read_local_oob_ext_data_complete(struct hci_dev *hdev, void *data,
 	u8 status = mgmt_status(err);
 	u16 eir_len;
 
+	if (cmd != pending_find(MGMT_OP_READ_LOCAL_OOB_EXT_DATA, hdev))
+		return;
+
 	if (!status) {
 		if (!skb)
 			status = MGMT_STATUS_FAILED;
@@ -7971,11 +8004,7 @@ static bool requested_adv_flags_are_valid(struct hci_dev *hdev, u32 adv_flags)
 
 static bool adv_busy(struct hci_dev *hdev)
 {
-	return (pending_find(MGMT_OP_ADD_ADVERTISING, hdev) ||
-		pending_find(MGMT_OP_REMOVE_ADVERTISING, hdev) ||
-		pending_find(MGMT_OP_SET_LE, hdev) ||
-		pending_find(MGMT_OP_ADD_EXT_ADV_PARAMS, hdev) ||
-		pending_find(MGMT_OP_ADD_EXT_ADV_DATA, hdev));
+	return pending_find(MGMT_OP_SET_LE, hdev);
 }
 
 static void add_adv_complete(struct hci_dev *hdev, struct sock *sk, u8 instance,
@@ -8565,9 +8594,7 @@ static int remove_advertising(struct sock *sk, struct hci_dev *hdev,
 		goto unlock;
 	}
 
-	if (pending_find(MGMT_OP_ADD_ADVERTISING, hdev) ||
-	    pending_find(MGMT_OP_REMOVE_ADVERTISING, hdev) ||
-	    pending_find(MGMT_OP_SET_LE, hdev)) {
+	if (pending_find(MGMT_OP_SET_LE, hdev)) {
 		err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_REMOVE_ADVERTISING,
 				      MGMT_STATUS_BUSY);
 		goto unlock;
diff --git a/net/bluetooth/mgmt_util.c b/net/bluetooth/mgmt_util.c
index edee60bbc7b4..37eef2ce55ae 100644
--- a/net/bluetooth/mgmt_util.c
+++ b/net/bluetooth/mgmt_util.c
@@ -77,11 +77,12 @@ int mgmt_send_event_skb(unsigned short channel, struct sk_buff *skb, int flag,
 {
 	struct hci_dev *hdev;
 	struct mgmt_hdr *hdr;
-	int len = skb->len;
+	int len;
 
 	if (!skb)
 		return -EINVAL;
 
+	len = skb->len;
 	hdev = bt_cb(skb)->mgmt.hdev;
 
 	/* Time stamp */
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index e5082836295b..23f3ba343661 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -3907,6 +3907,7 @@ struct sk_buff *skb_segment_list(struct sk_buff *skb,
 		list_skb = list_skb->next;
 
 		err = 0;
+		delta_truesize += nskb->truesize;
 		if (skb_shared(nskb)) {
 			tmp = skb_clone(nskb, GFP_ATOMIC);
 			if (tmp) {
@@ -3931,7 +3932,6 @@ struct sk_buff *skb_segment_list(struct sk_buff *skb,
 		tail = nskb;
 
 		delta_len += nskb->len;
-		delta_truesize += nskb->truesize;
 
 		skb_push(nskb, -skb_network_offset(nskb) + offset);
 
diff --git a/net/core/skmsg.c b/net/core/skmsg.c
index 8eb671c827f9..929a2b096b04 100644
--- a/net/core/skmsg.c
+++ b/net/core/skmsg.c
@@ -1153,7 +1153,7 @@ static int sk_psock_verdict_recv(read_descriptor_t *desc, struct sk_buff *skb,
 	struct sk_psock *psock;
 	struct bpf_prog *prog;
 	int ret = __SK_DROP;
-	int len = skb->len;
+	int len = orig_len;
 
 	/* clone here so sk_eat_skb() in tcp_read_sock does not drop our data */
 	skb = skb_clone(skb, GFP_ATOMIC);
diff --git a/net/dcb/dcbnl.c b/net/dcb/dcbnl.c
index b441ab330fd3..dc4fb699b56c 100644
--- a/net/dcb/dcbnl.c
+++ b/net/dcb/dcbnl.c
@@ -2073,8 +2073,52 @@ u8 dcb_ieee_getapp_default_prio_mask(const struct net_device *dev)
 }
 EXPORT_SYMBOL(dcb_ieee_getapp_default_prio_mask);
 
+static void dcbnl_flush_dev(struct net_device *dev)
+{
+	struct dcb_app_type *itr, *tmp;
+
+	spin_lock_bh(&dcb_lock);
+
+	list_for_each_entry_safe(itr, tmp, &dcb_app_list, list) {
+		if (itr->ifindex == dev->ifindex) {
+			list_del(&itr->list);
+			kfree(itr);
+		}
+	}
+
+	spin_unlock_bh(&dcb_lock);
+}
+
+static int dcbnl_netdevice_event(struct notifier_block *nb,
+				 unsigned long event, void *ptr)
+{
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
+
+	switch (event) {
+	case NETDEV_UNREGISTER:
+		if (!dev->dcbnl_ops)
+			return NOTIFY_DONE;
+
+		dcbnl_flush_dev(dev);
+
+		return NOTIFY_OK;
+	default:
+		return NOTIFY_DONE;
+	}
+}
+
+static struct notifier_block dcbnl_nb __read_mostly = {
+	.notifier_call  = dcbnl_netdevice_event,
+};
+
 static int __init dcbnl_init(void)
 {
+	int err;
+
+	err = register_netdevice_notifier(&dcbnl_nb);
+	if (err)
+		return err;
+
 	rtnl_register(PF_UNSPEC, RTM_GETDCB, dcb_doit, NULL, 0);
 	rtnl_register(PF_UNSPEC, RTM_SETDCB, dcb_doit, NULL, 0);
 
diff --git a/net/dsa/dsa2.c b/net/dsa/dsa2.c
index 030d5f26715a..d5f21a770689 100644
--- a/net/dsa/dsa2.c
+++ b/net/dsa/dsa2.c
@@ -1294,7 +1294,7 @@ int dsa_tree_change_tag_proto(struct dsa_switch_tree *dst,
 	info.tag_ops = tag_ops;
 	err = dsa_tree_notify(dst, DSA_NOTIFIER_TAG_PROTO, &info);
 	if (err)
-		return err;
+		goto out_unwind_tagger;
 
 	err = dsa_tree_bind_tag_proto(dst, tag_ops);
 	if (err)
diff --git a/net/ipv4/esp4.c b/net/ipv4/esp4.c
index 851f542928a3..e1b1d080e908 100644
--- a/net/ipv4/esp4.c
+++ b/net/ipv4/esp4.c
@@ -671,7 +671,7 @@ static int esp_output(struct xfrm_state *x, struct sk_buff *skb)
 		struct xfrm_dst *dst = (struct xfrm_dst *)skb_dst(skb);
 		u32 padto;
 
-		padto = min(x->tfcpad, __xfrm_state_mtu(x, dst->child_mtu_cached));
+		padto = min(x->tfcpad, xfrm_state_mtu(x, dst->child_mtu_cached));
 		if (skb->len < padto)
 			esp.tfclen = padto - skb->len;
 	}
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 68f1236b2858..33f20134e3f1 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -1683,11 +1683,13 @@ int tcp_read_sock(struct sock *sk, read_descriptor_t *desc,
 				if (!copied)
 					copied = used;
 				break;
-			} else if (used <= len) {
-				seq += used;
-				copied += used;
-				offset += used;
 			}
+			if (WARN_ON_ONCE(used > len))
+				used = len;
+			seq += used;
+			copied += used;
+			offset += used;
+
 			/* If recv_actor drops the lock (e.g. TCP splice
 			 * receive) the skb pointer might be invalid when
 			 * getting here: tcp_collapse might have deleted it
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 63aea19004a6..b22504176588 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -3730,6 +3730,7 @@ static int addrconf_ifdown(struct net_device *dev, bool unregister)
 	struct inet6_dev *idev;
 	struct inet6_ifaddr *ifa, *tmp;
 	bool keep_addr = false;
+	bool was_ready;
 	int state, i;
 
 	ASSERT_RTNL();
@@ -3795,7 +3796,10 @@ restart:
 
 	addrconf_del_rs_timer(idev);
 
-	/* Step 2: clear flags for stateless addrconf */
+	/* Step 2: clear flags for stateless addrconf, repeated down
+	 *         detection
+	 */
+	was_ready = idev->if_flags & IF_READY;
 	if (!unregister)
 		idev->if_flags &= ~(IF_RS_SENT|IF_RA_RCVD|IF_READY);
 
@@ -3869,7 +3873,7 @@ restart:
 	if (unregister) {
 		ipv6_ac_destroy_dev(idev);
 		ipv6_mc_destroy_dev(idev);
-	} else {
+	} else if (was_ready) {
 		ipv6_mc_down(idev);
 	}
 
diff --git a/net/ipv6/esp6.c b/net/ipv6/esp6.c
index 8bb2c407b46b..7591160edce1 100644
--- a/net/ipv6/esp6.c
+++ b/net/ipv6/esp6.c
@@ -707,7 +707,7 @@ static int esp6_output(struct xfrm_state *x, struct sk_buff *skb)
 		struct xfrm_dst *dst = (struct xfrm_dst *)skb_dst(skb);
 		u32 padto;
 
-		padto = min(x->tfcpad, __xfrm_state_mtu(x, dst->child_mtu_cached));
+		padto = min(x->tfcpad, xfrm_state_mtu(x, dst->child_mtu_cached));
 		if (skb->len < padto)
 			esp.tfclen = padto - skb->len;
 	}
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 50db9b20d746..e69fac576970 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -1407,8 +1407,6 @@ static int ip6_setup_cork(struct sock *sk, struct inet_cork_full *cork,
 		if (np->frag_size)
 			mtu = np->frag_size;
 	}
-	if (mtu < IPV6_MIN_MTU)
-		return -EINVAL;
 	cork->base.fragsize = mtu;
 	cork->base.gso_size = ipc6->gso_size;
 	cork->base.tx_flags = 0;
@@ -1471,8 +1469,6 @@ static int __ip6_append_data(struct sock *sk,
 
 	fragheaderlen = sizeof(struct ipv6hdr) + rt->rt6i_nfheader_len +
 			(opt ? opt->opt_nflen : 0);
-	maxfraglen = ((mtu - fragheaderlen) & ~7) + fragheaderlen -
-		     sizeof(struct frag_hdr);
 
 	headersize = sizeof(struct ipv6hdr) +
 		     (opt ? opt->opt_flen + opt->opt_nflen : 0) +
@@ -1480,6 +1476,13 @@ static int __ip6_append_data(struct sock *sk,
 		      sizeof(struct frag_hdr) : 0) +
 		     rt->rt6i_nfheader_len;
 
+	if (mtu < fragheaderlen ||
+	    ((mtu - fragheaderlen) & ~7) + fragheaderlen < sizeof(struct frag_hdr))
+		goto emsgsize;
+
+	maxfraglen = ((mtu - fragheaderlen) & ~7) + fragheaderlen -
+		     sizeof(struct frag_hdr);
+
 	/* as per RFC 7112 section 5, the entire IPv6 Header Chain must fit
 	 * the first fragment
 	 */
diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index a8861db52c18..909f937befd7 100644
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -1371,27 +1371,23 @@ static void mld_process_v2(struct inet6_dev *idev, struct mld2_query *mld,
 }
 
 /* called with rcu_read_lock() */
-int igmp6_event_query(struct sk_buff *skb)
+void igmp6_event_query(struct sk_buff *skb)
 {
 	struct inet6_dev *idev = __in6_dev_get(skb->dev);
 
-	if (!idev)
-		return -EINVAL;
-
-	if (idev->dead) {
-		kfree_skb(skb);
-		return -ENODEV;
-	}
+	if (!idev || idev->dead)
+		goto out;
 
 	spin_lock_bh(&idev->mc_query_lock);
 	if (skb_queue_len(&idev->mc_query_queue) < MLD_MAX_SKBS) {
 		__skb_queue_tail(&idev->mc_query_queue, skb);
 		if (!mod_delayed_work(mld_wq, &idev->mc_query_work, 0))
 			in6_dev_hold(idev);
+		skb = NULL;
 	}
 	spin_unlock_bh(&idev->mc_query_lock);
-
-	return 0;
+out:
+	kfree_skb(skb);
 }
 
 static void __mld_query_work(struct sk_buff *skb)
@@ -1542,27 +1538,23 @@ static void mld_query_work(struct work_struct *work)
 }
 
 /* called with rcu_read_lock() */
-int igmp6_event_report(struct sk_buff *skb)
+void igmp6_event_report(struct sk_buff *skb)
 {
 	struct inet6_dev *idev = __in6_dev_get(skb->dev);
 
-	if (!idev)
-		return -EINVAL;
-
-	if (idev->dead) {
-		kfree_skb(skb);
-		return -ENODEV;
-	}
+	if (!idev || idev->dead)
+		goto out;
 
 	spin_lock_bh(&idev->mc_report_lock);
 	if (skb_queue_len(&idev->mc_report_queue) < MLD_MAX_SKBS) {
 		__skb_queue_tail(&idev->mc_report_queue, skb);
 		if (!mod_delayed_work(mld_wq, &idev->mc_report_work, 0))
 			in6_dev_hold(idev);
+		skb = NULL;
 	}
 	spin_unlock_bh(&idev->mc_report_lock);
-
-	return 0;
+out:
+	kfree_skb(skb);
 }
 
 static void __mld_report_work(struct sk_buff *skb)
diff --git a/net/key/af_key.c b/net/key/af_key.c
index de24a7d474df..9bf52a09b5ff 100644
--- a/net/key/af_key.c
+++ b/net/key/af_key.c
@@ -2623,7 +2623,7 @@ static int pfkey_migrate(struct sock *sk, struct sk_buff *skb,
 	}
 
 	return xfrm_migrate(&sel, dir, XFRM_POLICY_TYPE_MAIN, m, i,
-			    kma ? &k : NULL, net, NULL);
+			    kma ? &k : NULL, net, NULL, 0);
 
  out:
 	return err;
diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c
index 74a878f213d3..1deb3d874a4b 100644
--- a/net/mac80211/agg-tx.c
+++ b/net/mac80211/agg-tx.c
@@ -9,7 +9,7 @@
  * Copyright 2007, Michael Wu <flamingice@sourmilk.net>
  * Copyright 2007-2010, Intel Corporation
  * Copyright(c) 2015-2017 Intel Deutschland GmbH
- * Copyright (C) 2018 - 2021 Intel Corporation
+ * Copyright (C) 2018 - 2022 Intel Corporation
  */
 
 #include <linux/ieee80211.h>
@@ -626,6 +626,14 @@ int ieee80211_start_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid,
 		return -EINVAL;
 	}
 
+	if (test_sta_flag(sta, WLAN_STA_MFP) &&
+	    !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) {
+		ht_dbg(sdata,
+		       "MFP STA not authorized - deny BA session request %pM tid %d\n",
+		       sta->sta.addr, tid);
+		return -EINVAL;
+	}
+
 	/*
 	 * 802.11n-2009 11.5.1.1: If the initiating STA is an HT STA, is a
 	 * member of an IBSS, and has no other existing Block Ack agreement
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index da35791b8378..95aaf00c876c 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -376,7 +376,7 @@ struct ieee80211_mgd_auth_data {
 
 	u8 key[WLAN_KEY_LEN_WEP104];
 	u8 key_len, key_idx;
-	bool done;
+	bool done, waiting;
 	bool peer_confirmed;
 	bool timeout_started;
 
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 20b57ddf149c..950be0f43b53 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -37,6 +37,7 @@
 #define IEEE80211_AUTH_TIMEOUT_SAE	(HZ * 2)
 #define IEEE80211_AUTH_MAX_TRIES	3
 #define IEEE80211_AUTH_WAIT_ASSOC	(HZ * 5)
+#define IEEE80211_AUTH_WAIT_SAE_RETRY	(HZ * 2)
 #define IEEE80211_ASSOC_TIMEOUT		(HZ / 5)
 #define IEEE80211_ASSOC_TIMEOUT_LONG	(HZ / 2)
 #define IEEE80211_ASSOC_TIMEOUT_SHORT	(HZ / 10)
@@ -3016,8 +3017,15 @@ static void ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata,
 		    (status_code == WLAN_STATUS_ANTI_CLOG_REQUIRED ||
 		     (auth_transaction == 1 &&
 		      (status_code == WLAN_STATUS_SAE_HASH_TO_ELEMENT ||
-		       status_code == WLAN_STATUS_SAE_PK))))
+		       status_code == WLAN_STATUS_SAE_PK)))) {
+			/* waiting for userspace now */
+			ifmgd->auth_data->waiting = true;
+			ifmgd->auth_data->timeout =
+				jiffies + IEEE80211_AUTH_WAIT_SAE_RETRY;
+			ifmgd->auth_data->timeout_started = true;
+			run_again(sdata, ifmgd->auth_data->timeout);
 			goto notify_driver;
+		}
 
 		sdata_info(sdata, "%pM denied authentication (status %d)\n",
 			   mgmt->sa, status_code);
@@ -4608,10 +4616,10 @@ void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata)
 
 	if (ifmgd->auth_data && ifmgd->auth_data->timeout_started &&
 	    time_after(jiffies, ifmgd->auth_data->timeout)) {
-		if (ifmgd->auth_data->done) {
+		if (ifmgd->auth_data->done || ifmgd->auth_data->waiting) {
 			/*
-			 * ok ... we waited for assoc but userspace didn't,
-			 * so let's just kill the auth data
+			 * ok ... we waited for assoc or continuation but
+			 * userspace didn't do it, so kill the auth data
 			 */
 			ieee80211_destroy_auth_data(sdata, false);
 		} else if (ieee80211_auth(sdata)) {
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index d54a4d98c648..beb6b92eb780 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -2607,7 +2607,8 @@ static void ieee80211_deliver_skb_to_local_stack(struct sk_buff *skb,
 		 * address, so that the authenticator (e.g. hostapd) will see
 		 * the frame, but bridge won't forward it anywhere else. Note
 		 * that due to earlier filtering, the only other address can
-		 * be the PAE group address.
+		 * be the PAE group address, unless the hardware allowed them
+		 * through in 802.3 offloaded mode.
 		 */
 		if (unlikely(skb->protocol == sdata->control_port_protocol &&
 			     !ether_addr_equal(ehdr->h_dest, sdata->vif.addr)))
@@ -2922,13 +2923,13 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
 	    ether_addr_equal(sdata->vif.addr, hdr->addr3))
 		return RX_CONTINUE;
 
-	ac = ieee80211_select_queue_80211(sdata, skb, hdr);
+	ac = ieee802_1d_to_ac[skb->priority];
 	q = sdata->vif.hw_queue[ac];
 	if (ieee80211_queue_stopped(&local->hw, q)) {
 		IEEE80211_IFSTA_MESH_CTR_INC(ifmsh, dropped_frames_congestion);
 		return RX_DROP_MONITOR;
 	}
-	skb_set_queue_mapping(skb, q);
+	skb_set_queue_mapping(skb, ac);
 
 	if (!--mesh_hdr->ttl) {
 		if (!is_multicast_ether_addr(hdr->addr1))
@@ -4514,12 +4515,7 @@ static void ieee80211_rx_8023(struct ieee80211_rx_data *rx,
 
 	/* deliver to local stack */
 	skb->protocol = eth_type_trans(skb, fast_rx->dev);
-	memset(skb->cb, 0, sizeof(skb->cb));
-	if (rx->list)
-		list_add_tail(&skb->list, rx->list);
-	else
-		netif_receive_skb(skb);
-
+	ieee80211_deliver_skb_to_local_stack(skb, rx);
 }
 
 static bool ieee80211_invoke_fast_rx(struct ieee80211_rx_data *rx,
diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c
index f60f01b14fac..1c72f25f083e 100644
--- a/net/mptcp/protocol.c
+++ b/net/mptcp/protocol.c
@@ -466,9 +466,12 @@ static bool mptcp_pending_data_fin(struct sock *sk, u64 *seq)
 static void mptcp_set_datafin_timeout(const struct sock *sk)
 {
 	struct inet_connection_sock *icsk = inet_csk(sk);
+	u32 retransmits;
 
-	mptcp_sk(sk)->timer_ival = min(TCP_RTO_MAX,
-				       TCP_RTO_MIN << icsk->icsk_retransmits);
+	retransmits = min_t(u32, icsk->icsk_retransmits,
+			    ilog2(TCP_RTO_MAX / TCP_RTO_MIN));
+
+	mptcp_sk(sk)->timer_ival = TCP_RTO_MIN << retransmits;
 }
 
 static void __mptcp_set_timeout(struct sock *sk, long tout)
@@ -3294,6 +3297,17 @@ static int mptcp_ioctl_outq(const struct mptcp_sock *msk, u64 v)
 		return 0;
 
 	delta = msk->write_seq - v;
+	if (__mptcp_check_fallback(msk) && msk->first) {
+		struct tcp_sock *tp = tcp_sk(msk->first);
+
+		/* the first subflow is disconnected after close - see
+		 * __mptcp_close_ssk(). tcp_disconnect() moves the write_seq
+		 * so ignore that status, too.
+		 */
+		if (!((1 << msk->first->sk_state) &
+		      (TCPF_SYN_SENT | TCPF_SYN_RECV | TCPF_CLOSE)))
+			delta += READ_ONCE(tp->write_seq) - tp->snd_una;
+	}
 	if (delta > INT_MAX)
 		delta = INT_MAX;
 
diff --git a/net/netfilter/core.c b/net/netfilter/core.c
index d1c9dfbb11fa..9a4feb922cf6 100644
--- a/net/netfilter/core.c
+++ b/net/netfilter/core.c
@@ -428,14 +428,15 @@ static int __nf_register_net_hook(struct net *net, int pf,
 	p = nf_entry_dereference(*pp);
 	new_hooks = nf_hook_entries_grow(p, reg);
 
-	if (!IS_ERR(new_hooks))
+	if (!IS_ERR(new_hooks)) {
+		hooks_validate(new_hooks);
 		rcu_assign_pointer(*pp, new_hooks);
+	}
 
 	mutex_unlock(&nf_hook_mutex);
 	if (IS_ERR(new_hooks))
 		return PTR_ERR(new_hooks);
 
-	hooks_validate(new_hooks);
 #ifdef CONFIG_NETFILTER_INGRESS
 	if (nf_ingress_hook(reg, pf))
 		net_inc_ingress_queue();
diff --git a/net/netfilter/nf_flow_table_offload.c b/net/netfilter/nf_flow_table_offload.c
index b561e0a44a45..fc4265acd9c4 100644
--- a/net/netfilter/nf_flow_table_offload.c
+++ b/net/netfilter/nf_flow_table_offload.c
@@ -110,7 +110,11 @@ static int nf_flow_rule_match(struct nf_flow_match *match,
 		nf_flow_rule_lwt_match(match, tun_info);
 	}
 
-	key->meta.ingress_ifindex = tuple->iifidx;
+	if (tuple->xmit_type == FLOW_OFFLOAD_XMIT_TC)
+		key->meta.ingress_ifindex = tuple->tc.iifidx;
+	else
+		key->meta.ingress_ifindex = tuple->iifidx;
+
 	mask->meta.ingress_ifindex = 0xffffffff;
 
 	if (tuple->encap_num > 0 && !(tuple->in_vlan_ingress & BIT(0)) &&
diff --git a/net/netfilter/nf_queue.c b/net/netfilter/nf_queue.c
index 6d12afabfe8a..63d1516816b1 100644
--- a/net/netfilter/nf_queue.c
+++ b/net/netfilter/nf_queue.c
@@ -46,6 +46,15 @@ void nf_unregister_queue_handler(void)
 }
 EXPORT_SYMBOL(nf_unregister_queue_handler);
 
+static void nf_queue_sock_put(struct sock *sk)
+{
+#ifdef CONFIG_INET
+	sock_gen_put(sk);
+#else
+	sock_put(sk);
+#endif
+}
+
 static void nf_queue_entry_release_refs(struct nf_queue_entry *entry)
 {
 	struct nf_hook_state *state = &entry->state;
@@ -54,7 +63,7 @@ static void nf_queue_entry_release_refs(struct nf_queue_entry *entry)
 	dev_put(state->in);
 	dev_put(state->out);
 	if (state->sk)
-		sock_put(state->sk);
+		nf_queue_sock_put(state->sk);
 
 #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
 	dev_put(entry->physin);
@@ -87,19 +96,21 @@ static void __nf_queue_entry_init_physdevs(struct nf_queue_entry *entry)
 }
 
 /* Bump dev refs so they don't vanish while packet is out */
-void nf_queue_entry_get_refs(struct nf_queue_entry *entry)
+bool nf_queue_entry_get_refs(struct nf_queue_entry *entry)
 {
 	struct nf_hook_state *state = &entry->state;
 
+	if (state->sk && !refcount_inc_not_zero(&state->sk->sk_refcnt))
+		return false;
+
 	dev_hold(state->in);
 	dev_hold(state->out);
-	if (state->sk)
-		sock_hold(state->sk);
 
 #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
 	dev_hold(entry->physin);
 	dev_hold(entry->physout);
 #endif
+	return true;
 }
 EXPORT_SYMBOL_GPL(nf_queue_entry_get_refs);
 
@@ -169,6 +180,18 @@ static int __nf_queue(struct sk_buff *skb, const struct nf_hook_state *state,
 		break;
 	}
 
+	if (skb_sk_is_prefetched(skb)) {
+		struct sock *sk = skb->sk;
+
+		if (!sk_is_refcounted(sk)) {
+			if (!refcount_inc_not_zero(&sk->sk_refcnt))
+				return -ENOTCONN;
+
+			/* drop refcount on skb_orphan */
+			skb->destructor = sock_edemux;
+		}
+	}
+
 	entry = kmalloc(sizeof(*entry) + route_key_size, GFP_ATOMIC);
 	if (!entry)
 		return -ENOMEM;
@@ -187,7 +210,10 @@ static int __nf_queue(struct sk_buff *skb, const struct nf_hook_state *state,
 
 	__nf_queue_entry_init_physdevs(entry);
 
-	nf_queue_entry_get_refs(entry);
+	if (!nf_queue_entry_get_refs(entry)) {
+		kfree(entry);
+		return -ENOTCONN;
+	}
 
 	switch (entry->state.pf) {
 	case AF_INET:
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index 9cd1d7a62804..c86748b3873b 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -4502,7 +4502,7 @@ static void nft_set_catchall_destroy(const struct nft_ctx *ctx,
 	list_for_each_entry_safe(catchall, next, &set->catchall_list, list) {
 		list_del_rcu(&catchall->list);
 		nft_set_elem_destroy(set, catchall->elem, true);
-		kfree_rcu(catchall);
+		kfree_rcu(catchall, rcu);
 	}
 }
 
@@ -5669,7 +5669,7 @@ static void nft_setelem_catchall_remove(const struct net *net,
 	list_for_each_entry_safe(catchall, next, &set->catchall_list, list) {
 		if (catchall->elem == elem->priv) {
 			list_del_rcu(&catchall->list);
-			kfree_rcu(catchall);
+			kfree_rcu(catchall, rcu);
 			break;
 		}
 	}
diff --git a/net/netfilter/nfnetlink_queue.c b/net/netfilter/nfnetlink_queue.c
index db9b5357f2ca..a364f8e5e698 100644
--- a/net/netfilter/nfnetlink_queue.c
+++ b/net/netfilter/nfnetlink_queue.c
@@ -717,9 +717,15 @@ static struct nf_queue_entry *
 nf_queue_entry_dup(struct nf_queue_entry *e)
 {
 	struct nf_queue_entry *entry = kmemdup(e, e->size, GFP_ATOMIC);
-	if (entry)
-		nf_queue_entry_get_refs(entry);
-	return entry;
+
+	if (!entry)
+		return NULL;
+
+	if (nf_queue_entry_get_refs(entry))
+		return entry;
+
+	kfree(entry);
+	return NULL;
 }
 
 #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
diff --git a/net/sched/act_ct.c b/net/sched/act_ct.c
index 5234e8bcc764..89e46f66e3d9 100644
--- a/net/sched/act_ct.c
+++ b/net/sched/act_ct.c
@@ -355,6 +355,13 @@ static void tcf_ct_flow_table_put(struct tcf_ct_params *params)
 	}
 }
 
+static void tcf_ct_flow_tc_ifidx(struct flow_offload *entry,
+				 struct nf_conn_act_ct_ext *act_ct_ext, u8 dir)
+{
+	entry->tuplehash[dir].tuple.xmit_type = FLOW_OFFLOAD_XMIT_TC;
+	entry->tuplehash[dir].tuple.tc.iifidx = act_ct_ext->ifindex[dir];
+}
+
 static void tcf_ct_flow_table_add(struct tcf_ct_flow_table *ct_ft,
 				  struct nf_conn *ct,
 				  bool tcp)
@@ -379,10 +386,8 @@ static void tcf_ct_flow_table_add(struct tcf_ct_flow_table *ct_ft,
 
 	act_ct_ext = nf_conn_act_ct_ext_find(ct);
 	if (act_ct_ext) {
-		entry->tuplehash[FLOW_OFFLOAD_DIR_ORIGINAL].tuple.iifidx =
-			act_ct_ext->ifindex[IP_CT_DIR_ORIGINAL];
-		entry->tuplehash[FLOW_OFFLOAD_DIR_REPLY].tuple.iifidx =
-			act_ct_ext->ifindex[IP_CT_DIR_REPLY];
+		tcf_ct_flow_tc_ifidx(entry, act_ct_ext, FLOW_OFFLOAD_DIR_ORIGINAL);
+		tcf_ct_flow_tc_ifidx(entry, act_ct_ext, FLOW_OFFLOAD_DIR_REPLY);
 	}
 
 	err = flow_offload_add(&ct_ft->nf_ft, entry);
diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c
index 6447607675fa..e508e4f3a073 100644
--- a/net/smc/af_smc.c
+++ b/net/smc/af_smc.c
@@ -285,7 +285,7 @@ static int smc_release(struct socket *sock)
 {
 	struct sock *sk = sock->sk;
 	struct smc_sock *smc;
-	int rc = 0;
+	int old_state, rc = 0;
 
 	if (!sk)
 		goto out;
@@ -293,8 +293,10 @@ static int smc_release(struct socket *sock)
 	sock_hold(sk); /* sock_put below */
 	smc = smc_sk(sk);
 
+	old_state = sk->sk_state;
+
 	/* cleanup for a dangling non-blocking connect */
-	if (smc->connect_nonblock && sk->sk_state == SMC_INIT)
+	if (smc->connect_nonblock && old_state == SMC_INIT)
 		tcp_abort(smc->clcsock->sk, ECONNABORTED);
 
 	if (cancel_work_sync(&smc->connect_work))
@@ -308,6 +310,10 @@ static int smc_release(struct socket *sock)
 	else
 		lock_sock(sk);
 
+	if (old_state == SMC_INIT && sk->sk_state == SMC_ACTIVE &&
+	    !smc->use_fallback)
+		smc_close_active_abort(smc);
+
 	rc = __smc_release(smc);
 
 	/* detach socket */
@@ -3287,7 +3293,7 @@ static int __init smc_init(void)
 	rc = tcp_register_ulp(&smc_ulp_ops);
 	if (rc) {
 		pr_err("%s: tcp_ulp_register fails with %d\n", __func__, rc);
-		goto out_sock;
+		goto out_ib;
 	}
 
 	rc = smc_sysctl_init();
@@ -3301,6 +3307,8 @@ static int __init smc_init(void)
 
 out_ulp:
 	tcp_unregister_ulp(&smc_ulp_ops);
+out_ib:
+	smc_ib_unregister_client();
 out_sock:
 	sock_unregister(PF_SMC);
 out_proto6:
diff --git a/net/smc/smc_core.c b/net/smc/smc_core.c
index 1674b2549f8b..f40f6ed0fbdb 100644
--- a/net/smc/smc_core.c
+++ b/net/smc/smc_core.c
@@ -1161,8 +1161,8 @@ void smc_conn_free(struct smc_connection *conn)
 			cancel_work_sync(&conn->abort_work);
 	}
 	if (!list_empty(&lgr->list)) {
-		smc_lgr_unregister_conn(conn);
 		smc_buf_unuse(conn, lgr); /* allow buffer reuse */
+		smc_lgr_unregister_conn(conn);
 	}
 
 	if (!lgr->conns_num)
@@ -1864,7 +1864,8 @@ int smc_conn_create(struct smc_sock *smc, struct smc_init_info *ini)
 		    (ini->smcd_version == SMC_V2 ||
 		     lgr->vlan_id == ini->vlan_id) &&
 		    (role == SMC_CLNT || ini->is_smcd ||
-		     lgr->conns_num < SMC_RMBS_PER_LGR_MAX)) {
+		    (lgr->conns_num < SMC_RMBS_PER_LGR_MAX &&
+		      !bitmap_full(lgr->rtokens_used_mask, SMC_RMBS_PER_LGR_MAX)))) {
 			/* link group found */
 			ini->first_contact_local = 0;
 			conn->lgr = lgr;
diff --git a/net/wireless/Makefile b/net/wireless/Makefile
index 1e9be50469ce..527ae669f6f7 100644
--- a/net/wireless/Makefile
+++ b/net/wireless/Makefile
@@ -33,7 +33,7 @@ $(obj)/shipped-certs.c: $(wildcard $(srctree)/$(src)/certs/*.hex)
 	  echo 'unsigned int shipped_regdb_certs_len = sizeof(shipped_regdb_certs);'; \
 	 ) > $@
 
-$(obj)/extra-certs.c: $(CONFIG_CFG80211_EXTRA_REGDB_KEYDI) \
+$(obj)/extra-certs.c: $(CONFIG_CFG80211_EXTRA_REGDB_KEYDIR) \
 		      $(wildcard $(CONFIG_CFG80211_EXTRA_REGDB_KEYDIR)/*.x509)
 	@$(kecho) "  GEN     $@"
 	$(Q)(set -e; \
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 578bff9c378b..c01fbcc848e8 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -13411,6 +13411,9 @@ static int handle_nan_filter(struct nlattr *attr_filter,
 	i = 0;
 	nla_for_each_nested(attr, attr_filter, rem) {
 		filter[i].filter = nla_memdup(attr, GFP_KERNEL);
+		if (!filter[i].filter)
+			goto err;
+
 		filter[i].len = nla_len(attr);
 		i++;
 	}
@@ -13423,6 +13426,15 @@ static int handle_nan_filter(struct nlattr *attr_filter,
 	}
 
 	return 0;
+
+err:
+	i = 0;
+	nla_for_each_nested(attr, attr_filter, rem) {
+		kfree(filter[i].filter);
+		i++;
+	}
+	kfree(filter);
+	return -ENOMEM;
 }
 
 static int nl80211_nan_add_func(struct sk_buff *skb,
@@ -17816,7 +17828,8 @@ void cfg80211_ch_switch_notify(struct net_device *dev,
 	wdev->chandef = *chandef;
 	wdev->preset_chandef = *chandef;
 
-	if (wdev->iftype == NL80211_IFTYPE_STATION &&
+	if ((wdev->iftype == NL80211_IFTYPE_STATION ||
+	     wdev->iftype == NL80211_IFTYPE_P2P_CLIENT) &&
 	    !WARN_ON(!wdev->current_bss))
 		cfg80211_update_assoc_bss_entry(wdev, chandef->chan);
 
diff --git a/net/xfrm/xfrm_device.c b/net/xfrm/xfrm_device.c
index 3fa066419d37..39bce5d764de 100644
--- a/net/xfrm/xfrm_device.c
+++ b/net/xfrm/xfrm_device.c
@@ -223,6 +223,9 @@ int xfrm_dev_state_add(struct net *net, struct xfrm_state *x,
 	if (x->encap || x->tfcpad)
 		return -EINVAL;
 
+	if (xuo->flags & ~(XFRM_OFFLOAD_IPV6 | XFRM_OFFLOAD_INBOUND))
+		return -EINVAL;
+
 	dev = dev_get_by_index(net, xuo->ifindex);
 	if (!dev) {
 		if (!(xuo->flags & XFRM_OFFLOAD_INBOUND)) {
@@ -262,7 +265,8 @@ int xfrm_dev_state_add(struct net *net, struct xfrm_state *x,
 	netdev_tracker_alloc(dev, &xso->dev_tracker, GFP_ATOMIC);
 	xso->real_dev = dev;
 	xso->num_exthdrs = 1;
-	xso->flags = xuo->flags;
+	/* Don't forward bit that is not implemented */
+	xso->flags = xuo->flags & ~XFRM_OFFLOAD_IPV6;
 
 	err = dev->xfrmdev_ops->xdo_dev_state_add(x);
 	if (err) {
diff --git a/net/xfrm/xfrm_interface.c b/net/xfrm/xfrm_interface.c
index 4991e99ced9a..daec1fb08bf5 100644
--- a/net/xfrm/xfrm_interface.c
+++ b/net/xfrm/xfrm_interface.c
@@ -673,12 +673,12 @@ static int xfrmi_changelink(struct net_device *dev, struct nlattr *tb[],
 	struct net *net = xi->net;
 	struct xfrm_if_parms p = {};
 
+	xfrmi_netlink_parms(data, &p);
 	if (!p.if_id) {
 		NL_SET_ERR_MSG(extack, "if_id must be non zero");
 		return -EINVAL;
 	}
 
-	xfrmi_netlink_parms(data, &p);
 	xi = xfrmi_locate(net, &p);
 	if (!xi) {
 		xi = netdev_priv(dev);
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index 04d1ce9b510f..882526159d3a 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -4256,7 +4256,7 @@ static bool xfrm_migrate_selector_match(const struct xfrm_selector *sel_cmp,
 }
 
 static struct xfrm_policy *xfrm_migrate_policy_find(const struct xfrm_selector *sel,
-						    u8 dir, u8 type, struct net *net)
+						    u8 dir, u8 type, struct net *net, u32 if_id)
 {
 	struct xfrm_policy *pol, *ret = NULL;
 	struct hlist_head *chain;
@@ -4265,7 +4265,8 @@ static struct xfrm_policy *xfrm_migrate_policy_find(const struct xfrm_selector *
 	spin_lock_bh(&net->xfrm.xfrm_policy_lock);
 	chain = policy_hash_direct(net, &sel->daddr, &sel->saddr, sel->family, dir);
 	hlist_for_each_entry(pol, chain, bydst) {
-		if (xfrm_migrate_selector_match(sel, &pol->selector) &&
+		if ((if_id == 0 || pol->if_id == if_id) &&
+		    xfrm_migrate_selector_match(sel, &pol->selector) &&
 		    pol->type == type) {
 			ret = pol;
 			priority = ret->priority;
@@ -4277,7 +4278,8 @@ static struct xfrm_policy *xfrm_migrate_policy_find(const struct xfrm_selector *
 		if ((pol->priority >= priority) && ret)
 			break;
 
-		if (xfrm_migrate_selector_match(sel, &pol->selector) &&
+		if ((if_id == 0 || pol->if_id == if_id) &&
+		    xfrm_migrate_selector_match(sel, &pol->selector) &&
 		    pol->type == type) {
 			ret = pol;
 			break;
@@ -4393,7 +4395,7 @@ static int xfrm_migrate_check(const struct xfrm_migrate *m, int num_migrate)
 int xfrm_migrate(const struct xfrm_selector *sel, u8 dir, u8 type,
 		 struct xfrm_migrate *m, int num_migrate,
 		 struct xfrm_kmaddress *k, struct net *net,
-		 struct xfrm_encap_tmpl *encap)
+		 struct xfrm_encap_tmpl *encap, u32 if_id)
 {
 	int i, err, nx_cur = 0, nx_new = 0;
 	struct xfrm_policy *pol = NULL;
@@ -4412,14 +4414,14 @@ int xfrm_migrate(const struct xfrm_selector *sel, u8 dir, u8 type,
 	}
 
 	/* Stage 1 - find policy */
-	if ((pol = xfrm_migrate_policy_find(sel, dir, type, net)) == NULL) {
+	if ((pol = xfrm_migrate_policy_find(sel, dir, type, net, if_id)) == NULL) {
 		err = -ENOENT;
 		goto out;
 	}
 
 	/* Stage 2 - find and update state(s) */
 	for (i = 0, mp = m; i < num_migrate; i++, mp++) {
-		if ((x = xfrm_migrate_state_find(mp, net))) {
+		if ((x = xfrm_migrate_state_find(mp, net, if_id))) {
 			x_cur[nx_cur] = x;
 			nx_cur++;
 			xc = xfrm_state_migrate(x, mp, encap);
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index ca6bee18346d..b749935152ba 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -1579,9 +1579,6 @@ static struct xfrm_state *xfrm_state_clone(struct xfrm_state *orig,
 	memcpy(&x->mark, &orig->mark, sizeof(x->mark));
 	memcpy(&x->props.smark, &orig->props.smark, sizeof(x->props.smark));
 
-	if (xfrm_init_state(x) < 0)
-		goto error;
-
 	x->props.flags = orig->props.flags;
 	x->props.extra_flags = orig->props.extra_flags;
 
@@ -1606,7 +1603,8 @@ out:
 	return NULL;
 }
 
-struct xfrm_state *xfrm_migrate_state_find(struct xfrm_migrate *m, struct net *net)
+struct xfrm_state *xfrm_migrate_state_find(struct xfrm_migrate *m, struct net *net,
+						u32 if_id)
 {
 	unsigned int h;
 	struct xfrm_state *x = NULL;
@@ -1622,6 +1620,8 @@ struct xfrm_state *xfrm_migrate_state_find(struct xfrm_migrate *m, struct net *n
 				continue;
 			if (m->reqid && x->props.reqid != m->reqid)
 				continue;
+			if (if_id != 0 && x->if_id != if_id)
+				continue;
 			if (!xfrm_addr_equal(&x->id.daddr, &m->old_daddr,
 					     m->old_family) ||
 			    !xfrm_addr_equal(&x->props.saddr, &m->old_saddr,
@@ -1637,6 +1637,8 @@ struct xfrm_state *xfrm_migrate_state_find(struct xfrm_migrate *m, struct net *n
 			if (x->props.mode != m->mode ||
 			    x->id.proto != m->proto)
 				continue;
+			if (if_id != 0 && x->if_id != if_id)
+				continue;
 			if (!xfrm_addr_equal(&x->id.daddr, &m->old_daddr,
 					     m->old_family) ||
 			    !xfrm_addr_equal(&x->props.saddr, &m->old_saddr,
@@ -1663,6 +1665,11 @@ struct xfrm_state *xfrm_state_migrate(struct xfrm_state *x,
 	if (!xc)
 		return NULL;
 
+	xc->props.family = m->new_family;
+
+	if (xfrm_init_state(xc) < 0)
+		goto error;
+
 	memcpy(&xc->id.daddr, &m->new_daddr, sizeof(xc->id.daddr));
 	memcpy(&xc->props.saddr, &m->new_saddr, sizeof(xc->props.saddr));
 
@@ -2572,7 +2579,7 @@ void xfrm_state_delete_tunnel(struct xfrm_state *x)
 }
 EXPORT_SYMBOL(xfrm_state_delete_tunnel);
 
-u32 __xfrm_state_mtu(struct xfrm_state *x, int mtu)
+u32 xfrm_state_mtu(struct xfrm_state *x, int mtu)
 {
 	const struct xfrm_type *type = READ_ONCE(x->type);
 	struct crypto_aead *aead;
@@ -2603,17 +2610,7 @@ u32 __xfrm_state_mtu(struct xfrm_state *x, int mtu)
 	return ((mtu - x->props.header_len - crypto_aead_authsize(aead) -
 		 net_adj) & ~(blksize - 1)) + net_adj - 2;
 }
-EXPORT_SYMBOL_GPL(__xfrm_state_mtu);
-
-u32 xfrm_state_mtu(struct xfrm_state *x, int mtu)
-{
-	mtu = __xfrm_state_mtu(x, mtu);
-
-	if (x->props.family == AF_INET6 && mtu < IPV6_MIN_MTU)
-		return IPV6_MIN_MTU;
-
-	return mtu;
-}
+EXPORT_SYMBOL_GPL(xfrm_state_mtu);
 
 int __xfrm_init_state(struct xfrm_state *x, bool init_replay, bool offload)
 {
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index 8cd6c8129004..a4fb596e87af 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -2608,6 +2608,7 @@ static int xfrm_do_migrate(struct sk_buff *skb, struct nlmsghdr *nlh,
 	int n = 0;
 	struct net *net = sock_net(skb->sk);
 	struct xfrm_encap_tmpl  *encap = NULL;
+	u32 if_id = 0;
 
 	if (attrs[XFRMA_MIGRATE] == NULL)
 		return -EINVAL;
@@ -2632,7 +2633,10 @@ static int xfrm_do_migrate(struct sk_buff *skb, struct nlmsghdr *nlh,
 			return -ENOMEM;
 	}
 
-	err = xfrm_migrate(&pi->sel, pi->dir, type, m, n, kmp, net, encap);
+	if (attrs[XFRMA_IF_ID])
+		if_id = nla_get_u32(attrs[XFRMA_IF_ID]);
+
+	err = xfrm_migrate(&pi->sel, pi->dir, type, m, n, kmp, net, encap, if_id);
 
 	kfree(encap);