[PATCH 5.10 312/509] netfilter: nf_tables: use net_generic infra for transaction data

[Greg Kroah-Hartman <gregkh@linuxfoundation.org>]

From: Florian Westphal <fw@strlen.de>

[ Upstream commit 0854db2aaef3fcdd3498a9d299c60adea2aa3dc6 ]

This moves all nf_tables pernet data from struct net to a net_generic
extension, with the exception of the gencursor.

The latter is used in the data path and also outside of the nf_tables
core. All others are only used from the configuration plane.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/net/netfilter/nf_tables.h |   10 
 include/net/netns/nftables.h      |    7 
 net/netfilter/nf_tables_api.c     |  382 +++++++++++++++++++++++---------------
 net/netfilter/nf_tables_offload.c |   30 +-
 net/netfilter/nft_chain_filter.c  |   11 -
 net/netfilter/nft_dynset.c        |    6 
 6 files changed, 279 insertions(+), 167 deletions(-)

--- a/include/net/netfilter/nf_tables.h
+++ b/include/net/netfilter/nf_tables.h
@@ -1535,4 +1535,14 @@ void nf_tables_trans_destroy_flush_work(
 int nf_msecs_to_jiffies64(const struct nlattr *nla, u64 *result);
 __be64 nf_jiffies64_to_msecs(u64 input);
 
+struct nftables_pernet {
+	struct list_head	tables;
+	struct list_head	commit_list;
+	struct list_head	module_list;
+	struct list_head	notify_list;
+	struct mutex		commit_mutex;
+	unsigned int		base_seq;
+	u8			validate_state;
+};
+
 #endif /* _NET_NF_TABLES_H */
--- a/include/net/netns/nftables.h
+++ b/include/net/netns/nftables.h
@@ -5,14 +5,7 @@
 #include <linux/list.h>
 
 struct netns_nftables {
-	struct list_head	tables;
-	struct list_head	commit_list;
-	struct list_head	module_list;
-	struct list_head	notify_list;
-	struct mutex		commit_mutex;
-	unsigned int		base_seq;
 	u8			gencursor;
-	u8			validate_state;
 };
 
 #endif
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -21,10 +21,13 @@
 #include <net/netfilter/nf_tables.h>
 #include <net/netfilter/nf_tables_offload.h>
 #include <net/net_namespace.h>
+#include <net/netns/generic.h>
 #include <net/sock.h>
 
 #define NFT_MODULE_AUTOLOAD_LIMIT (MODULE_NAME_LEN - sizeof("nft-expr-255-"))
 
+unsigned int nf_tables_net_id __read_mostly;
+
 static LIST_HEAD(nf_tables_expressions);
 static LIST_HEAD(nf_tables_objects);
 static LIST_HEAD(nf_tables_flowtables);
@@ -103,7 +106,9 @@ static const u8 nft2audit_op[NFT_MSG_MAX
 
 static void nft_validate_state_update(struct net *net, u8 new_validate_state)
 {
-	switch (net->nft.validate_state) {
+	struct nftables_pernet *nft_net = net_generic(net, nf_tables_net_id);
+
+	switch (nft_net->validate_state) {
 	case NFT_VALIDATE_SKIP:
 		WARN_ON_ONCE(new_validate_state == NFT_VALIDATE_DO);
 		break;
@@ -114,7 +119,7 @@ static void nft_validate_state_update(st
 			return;
 	}
 
-	net->nft.validate_state = new_validate_state;
+	nft_net->validate_state = new_validate_state;
 }
 static void nf_tables_trans_destroy_work(struct work_struct *w);
 static DECLARE_WORK(trans_destroy_work, nf_tables_trans_destroy_work);
@@ -170,13 +175,15 @@ static void nft_trans_destroy(struct nft
 
 static void nft_set_trans_bind(const struct nft_ctx *ctx, struct nft_set *set)
 {
+	struct nftables_pernet *nft_net;
 	struct net *net = ctx->net;
 	struct nft_trans *trans;
 
 	if (!nft_set_is_anonymous(set))
 		return;
 
-	list_for_each_entry_reverse(trans, &net->nft.commit_list, list) {
+	nft_net = net_generic(net, nf_tables_net_id);
+	list_for_each_entry_reverse(trans, &nft_net->commit_list, list) {
 		switch (trans->msg_type) {
 		case NFT_MSG_NEWSET:
 			if (nft_trans_set(trans) == set)
@@ -270,6 +277,14 @@ static void nf_tables_unregister_hook(st
 		nf_unregister_net_hook(net, &basechain->ops);
 }
 
+static void nft_trans_commit_list_add_tail(struct net *net, struct nft_trans *trans)
+{
+	struct nftables_pernet *nft_net;
+
+	nft_net = net_generic(net, nf_tables_net_id);
+	list_add_tail(&trans->list, &nft_net->commit_list);
+}
+
 static int nft_trans_table_add(struct nft_ctx *ctx, int msg_type)
 {
 	struct nft_trans *trans;
@@ -281,7 +296,7 @@ static int nft_trans_table_add(struct nf
 	if (msg_type == NFT_MSG_NEWTABLE)
 		nft_activate_next(ctx->net, ctx->table);
 
-	list_add_tail(&trans->list, &ctx->net->nft.commit_list);
+	nft_trans_commit_list_add_tail(ctx->net, trans);
 	return 0;
 }
 
@@ -314,7 +329,7 @@ static struct nft_trans *nft_trans_chain
 		}
 	}
 
-	list_add_tail(&trans->list, &ctx->net->nft.commit_list);
+	nft_trans_commit_list_add_tail(ctx->net, trans);
 	return trans;
 }
 
@@ -387,7 +402,7 @@ static struct nft_trans *nft_trans_rule_
 			ntohl(nla_get_be32(ctx->nla[NFTA_RULE_ID]));
 	}
 	nft_trans_rule(trans) = rule;
-	list_add_tail(&trans->list, &ctx->net->nft.commit_list);
+	nft_trans_commit_list_add_tail(ctx->net, trans);
 
 	return trans;
 }
@@ -453,7 +468,7 @@ static int nft_trans_set_add(const struc
 		nft_activate_next(ctx->net, set);
 	}
 	nft_trans_set(trans) = set;
-	list_add_tail(&trans->list, &ctx->net->nft.commit_list);
+	nft_trans_commit_list_add_tail(ctx->net, trans);
 
 	return 0;
 }
@@ -485,7 +500,7 @@ static int nft_trans_obj_add(struct nft_
 		nft_activate_next(ctx->net, obj);
 
 	nft_trans_obj(trans) = obj;
-	list_add_tail(&trans->list, &ctx->net->nft.commit_list);
+	nft_trans_commit_list_add_tail(ctx->net, trans);
 
 	return 0;
 }
@@ -519,7 +534,7 @@ static int nft_trans_flowtable_add(struc
 
 	INIT_LIST_HEAD(&nft_trans_flowtable_hooks(trans));
 	nft_trans_flowtable(trans) = flowtable;
-	list_add_tail(&trans->list, &ctx->net->nft.commit_list);
+	nft_trans_commit_list_add_tail(ctx->net, trans);
 
 	return 0;
 }
@@ -547,13 +562,15 @@ static struct nft_table *nft_table_looku
 					  const struct nlattr *nla,
 					  u8 family, u8 genmask)
 {
+	struct nftables_pernet *nft_net;
 	struct nft_table *table;
 
 	if (nla == NULL)
 		return ERR_PTR(-EINVAL);
 
-	list_for_each_entry_rcu(table, &net->nft.tables, list,
-				lockdep_is_held(&net->nft.commit_mutex)) {
+	nft_net = net_generic(net, nf_tables_net_id);
+	list_for_each_entry_rcu(table, &nft_net->tables, list,
+				lockdep_is_held(&nft_net->commit_mutex)) {
 		if (!nla_strcmp(nla, table->name) &&
 		    table->family == family &&
 		    nft_active_genmask(table, genmask))
@@ -567,9 +584,11 @@ static struct nft_table *nft_table_looku
 						   const struct nlattr *nla,
 						   u8 genmask)
 {
+	struct nftables_pernet *nft_net;
 	struct nft_table *table;
 
-	list_for_each_entry(table, &net->nft.tables, list) {
+	nft_net = net_generic(net, nf_tables_net_id);
+	list_for_each_entry(table, &nft_net->tables, list) {
 		if (be64_to_cpu(nla_get_be64(nla)) == table->handle &&
 		    nft_active_genmask(table, genmask))
 			return table;
@@ -621,6 +640,7 @@ struct nft_module_request {
 static int nft_request_module(struct net *net, const char *fmt, ...)
 {
 	char module_name[MODULE_NAME_LEN];
+	struct nftables_pernet *nft_net;
 	struct nft_module_request *req;
 	va_list args;
 	int ret;
@@ -631,7 +651,8 @@ static int nft_request_module(struct net
 	if (ret >= MODULE_NAME_LEN)
 		return 0;
 
-	list_for_each_entry(req, &net->nft.module_list, list) {
+	nft_net = net_generic(net, nf_tables_net_id);
+	list_for_each_entry(req, &nft_net->module_list, list) {
 		if (!strcmp(req->module, module_name)) {
 			if (req->done)
 				return 0;
@@ -647,7 +668,7 @@ static int nft_request_module(struct net
 
 	req->done = false;
 	strlcpy(req->module, module_name, MODULE_NAME_LEN);
-	list_add_tail(&req->list, &net->nft.module_list);
+	list_add_tail(&req->list, &nft_net->module_list);
 
 	return -EAGAIN;
 }
@@ -685,7 +706,9 @@ nf_tables_chain_type_lookup(struct net *
 
 static __be16 nft_base_seq(const struct net *net)
 {
-	return htons(net->nft.base_seq & 0xffff);
+	struct nftables_pernet *nft_net = net_generic(net, nf_tables_net_id);
+
+	return htons(nft_net->base_seq & 0xffff);
 }
 
 static const struct nla_policy nft_table_policy[NFTA_TABLE_MAX + 1] = {
@@ -743,6 +766,7 @@ static void nft_notify_enqueue(struct sk
 
 static void nf_tables_table_notify(const struct nft_ctx *ctx, int event)
 {
+	struct nftables_pernet *nft_net;
 	struct sk_buff *skb;
 	int err;
 
@@ -761,7 +785,8 @@ static void nf_tables_table_notify(const
 		goto err;
 	}
 
-	nft_notify_enqueue(skb, ctx->report, &ctx->net->nft.notify_list);
+	nft_net = net_generic(ctx->net, nf_tables_net_id);
+	nft_notify_enqueue(skb, ctx->report, &nft_net->notify_list);
 	return;
 err:
 	nfnetlink_set_err(ctx->net, ctx->portid, NFNLGRP_NFTABLES, -ENOBUFS);
@@ -771,15 +796,17 @@ static int nf_tables_dump_tables(struct
 				 struct netlink_callback *cb)
 {
 	const struct nfgenmsg *nfmsg = nlmsg_data(cb->nlh);
+	struct nftables_pernet *nft_net;
 	const struct nft_table *table;
 	unsigned int idx = 0, s_idx = cb->args[0];
 	struct net *net = sock_net(skb->sk);
 	int family = nfmsg->nfgen_family;
 
 	rcu_read_lock();
-	cb->seq = net->nft.base_seq;
+	nft_net = net_generic(net, nf_tables_net_id);
+	cb->seq = nft_net->base_seq;
 
-	list_for_each_entry_rcu(table, &net->nft.tables, list) {
+	list_for_each_entry_rcu(table, &nft_net->tables, list) {
 		if (family != NFPROTO_UNSPEC && family != table->family)
 			continue;
 
@@ -954,7 +981,7 @@ static int nf_tables_updtable(struct nft
 		goto err;
 
 	nft_trans_table_update(trans) = true;
-	list_add_tail(&trans->list, &ctx->net->nft.commit_list);
+	nft_trans_commit_list_add_tail(ctx->net, trans);
 	return 0;
 err:
 	nft_trans_destroy(trans);
@@ -1017,6 +1044,7 @@ static int nf_tables_newtable(struct net
 			      const struct nlattr * const nla[],
 			      struct netlink_ext_ack *extack)
 {
+	struct nftables_pernet *nft_net = net_generic(net, nf_tables_net_id);
 	const struct nfgenmsg *nfmsg = nlmsg_data(nlh);
 	u8 genmask = nft_genmask_next(net);
 	int family = nfmsg->nfgen_family;
@@ -1026,7 +1054,7 @@ static int nf_tables_newtable(struct net
 	u32 flags = 0;
 	int err;
 
-	lockdep_assert_held(&net->nft.commit_mutex);
+	lockdep_assert_held(&nft_net->commit_mutex);
 	attr = nla[NFTA_TABLE_NAME];
 	table = nft_table_lookup(net, attr, family, genmask);
 	if (IS_ERR(table)) {
@@ -1084,7 +1112,7 @@ static int nf_tables_newtable(struct net
 	if (err < 0)
 		goto err_trans;
 
-	list_add_tail_rcu(&table->list, &net->nft.tables);
+	list_add_tail_rcu(&table->list, &nft_net->tables);
 	return 0;
 err_trans:
 	rhltable_destroy(&table->chains_ht);
@@ -1172,11 +1200,12 @@ out:
 
 static int nft_flush(struct nft_ctx *ctx, int family)
 {
+	struct nftables_pernet *nft_net = net_generic(ctx->net, nf_tables_net_id);
 	struct nft_table *table, *nt;
 	const struct nlattr * const *nla = ctx->nla;
 	int err = 0;
 
-	list_for_each_entry_safe(table, nt, &ctx->net->nft.tables, list) {
+	list_for_each_entry_safe(table, nt, &nft_net->tables, list) {
 		if (family != AF_UNSPEC && table->family != family)
 			continue;
 
@@ -1291,7 +1320,9 @@ nft_chain_lookup_byhandle(const struct n
 static bool lockdep_commit_lock_is_held(const struct net *net)
 {
 #ifdef CONFIG_PROVE_LOCKING
-	return lockdep_is_held(&net->nft.commit_mutex);
+	struct nftables_pernet *nft_net = net_generic(net, nf_tables_net_id);
+
+	return lockdep_is_held(&nft_net->commit_mutex);
 #else
 	return true;
 #endif
@@ -1494,6 +1525,7 @@ nla_put_failure:
 
 static void nf_tables_chain_notify(const struct nft_ctx *ctx, int event)
 {
+	struct nftables_pernet *nft_net;
 	struct sk_buff *skb;
 	int err;
 
@@ -1513,7 +1545,8 @@ static void nf_tables_chain_notify(const
 		goto err;
 	}
 
-	nft_notify_enqueue(skb, ctx->report, &ctx->net->nft.notify_list);
+	nft_net = net_generic(ctx->net, nf_tables_net_id);
+	nft_notify_enqueue(skb, ctx->report, &nft_net->notify_list);
 	return;
 err:
 	nfnetlink_set_err(ctx->net, ctx->portid, NFNLGRP_NFTABLES, -ENOBUFS);
@@ -1528,11 +1561,13 @@ static int nf_tables_dump_chains(struct
 	unsigned int idx = 0, s_idx = cb->args[0];
 	struct net *net = sock_net(skb->sk);
 	int family = nfmsg->nfgen_family;
+	struct nftables_pernet *nft_net;
 
 	rcu_read_lock();
-	cb->seq = net->nft.base_seq;
+	nft_net = net_generic(net, nf_tables_net_id);
+	cb->seq = nft_net->base_seq;
 
-	list_for_each_entry_rcu(table, &net->nft.tables, list) {
+	list_for_each_entry_rcu(table, &nft_net->tables, list) {
 		if (family != NFPROTO_UNSPEC && family != table->family)
 			continue;
 
@@ -1847,11 +1882,12 @@ static int nft_chain_parse_hook(struct n
 				struct nft_chain_hook *hook, u8 family,
 				bool autoload)
 {
+	struct nftables_pernet *nft_net = net_generic(net, nf_tables_net_id);
 	struct nlattr *ha[NFTA_HOOK_MAX + 1];
 	const struct nft_chain_type *type;
 	int err;
 
-	lockdep_assert_held(&net->nft.commit_mutex);
+	lockdep_assert_held(&nft_net->commit_mutex);
 	lockdep_nfnl_nft_mutex_not_held();
 
 	err = nla_parse_nested_deprecated(ha, NFTA_HOOK_MAX,
@@ -2244,6 +2280,7 @@ static int nf_tables_updchain(struct nft
 
 	if (nla[NFTA_CHAIN_HANDLE] &&
 	    nla[NFTA_CHAIN_NAME]) {
+		struct nftables_pernet *nft_net = net_generic(ctx->net, nf_tables_net_id);
 		struct nft_trans *tmp;
 		char *name;
 
@@ -2253,7 +2290,7 @@ static int nf_tables_updchain(struct nft
 			goto err;
 
 		err = -EEXIST;
-		list_for_each_entry(tmp, &ctx->net->nft.commit_list, list) {
+		list_for_each_entry(tmp, &nft_net->commit_list, list) {
 			if (tmp->msg_type == NFT_MSG_NEWCHAIN &&
 			    tmp->ctx.table == table &&
 			    nft_trans_chain_update(tmp) &&
@@ -2267,7 +2304,7 @@ static int nf_tables_updchain(struct nft
 
 		nft_trans_chain_name(trans) = name;
 	}
-	list_add_tail(&trans->list, &ctx->net->nft.commit_list);
+	nft_trans_commit_list_add_tail(ctx->net, trans);
 
 	return 0;
 err:
@@ -2280,10 +2317,11 @@ static struct nft_chain *nft_chain_looku
 					       const struct nft_table *table,
 					       const struct nlattr *nla)
 {
+	struct nftables_pernet *nft_net = net_generic(net, nf_tables_net_id);
 	u32 id = ntohl(nla_get_be32(nla));
 	struct nft_trans *trans;
 
-	list_for_each_entry(trans, &net->nft.commit_list, list) {
+	list_for_each_entry(trans, &nft_net->commit_list, list) {
 		struct nft_chain *chain = trans->ctx.chain;
 
 		if (trans->msg_type == NFT_MSG_NEWCHAIN &&
@@ -2299,6 +2337,7 @@ static int nf_tables_newchain(struct net
 			      const struct nlattr * const nla[],
 			      struct netlink_ext_ack *extack)
 {
+	struct nftables_pernet *nft_net = net_generic(net, nf_tables_net_id);
 	const struct nfgenmsg *nfmsg = nlmsg_data(nlh);
 	u8 genmask = nft_genmask_next(net);
 	int family = nfmsg->nfgen_family;
@@ -2310,7 +2349,7 @@ static int nf_tables_newchain(struct net
 	u64 handle = 0;
 	u32 flags = 0;
 
-	lockdep_assert_held(&net->nft.commit_mutex);
+	lockdep_assert_held(&nft_net->commit_mutex);
 
 	table = nft_table_lookup(net, nla[NFTA_CHAIN_TABLE], family, genmask);
 	if (IS_ERR(table)) {
@@ -2848,6 +2887,7 @@ nla_put_failure:
 static void nf_tables_rule_notify(const struct nft_ctx *ctx,
 				  const struct nft_rule *rule, int event)
 {
+	struct nftables_pernet *nft_net = net_generic(ctx->net, nf_tables_net_id);
 	struct sk_buff *skb;
 	int err;
 
@@ -2867,7 +2907,7 @@ static void nf_tables_rule_notify(const
 		goto err;
 	}
 
-	nft_notify_enqueue(skb, ctx->report, &ctx->net->nft.notify_list);
+	nft_notify_enqueue(skb, ctx->report, &nft_net->notify_list);
 	return;
 err:
 	nfnetlink_set_err(ctx->net, ctx->portid, NFNLGRP_NFTABLES, -ENOBUFS);
@@ -2925,11 +2965,13 @@ static int nf_tables_dump_rules(struct s
 	unsigned int idx = 0;
 	struct net *net = sock_net(skb->sk);
 	int family = nfmsg->nfgen_family;
+	struct nftables_pernet *nft_net;
 
 	rcu_read_lock();
-	cb->seq = net->nft.base_seq;
+	nft_net = net_generic(net, nf_tables_net_id);
+	cb->seq = nft_net->base_seq;
 
-	list_for_each_entry_rcu(table, &net->nft.tables, list) {
+	list_for_each_entry_rcu(table, &nft_net->tables, list) {
 		if (family != NFPROTO_UNSPEC && family != table->family)
 			continue;
 
@@ -3161,6 +3203,7 @@ static int nf_tables_newrule(struct net
 			     const struct nlattr * const nla[],
 			     struct netlink_ext_ack *extack)
 {
+	struct nftables_pernet *nft_net = net_generic(net, nf_tables_net_id);
 	const struct nfgenmsg *nfmsg = nlmsg_data(nlh);
 	u8 genmask = nft_genmask_next(net);
 	struct nft_expr_info *info = NULL;
@@ -3178,7 +3221,7 @@ static int nf_tables_newrule(struct net
 	int err, rem;
 	u64 handle, pos_handle;
 
-	lockdep_assert_held(&net->nft.commit_mutex);
+	lockdep_assert_held(&nft_net->commit_mutex);
 
 	table = nft_table_lookup(net, nla[NFTA_RULE_TABLE], family, genmask);
 	if (IS_ERR(table)) {
@@ -3351,7 +3394,7 @@ static int nf_tables_newrule(struct net
 	kvfree(info);
 	chain->use++;
 
-	if (net->nft.validate_state == NFT_VALIDATE_DO)
+	if (nft_net->validate_state == NFT_VALIDATE_DO)
 		return nft_table_validate(net, table);
 
 	if (chain->flags & NFT_CHAIN_HW_OFFLOAD) {
@@ -3381,10 +3424,11 @@ static struct nft_rule *nft_rule_lookup_
 					     const struct nft_chain *chain,
 					     const struct nlattr *nla)
 {
+	struct nftables_pernet *nft_net = net_generic(net, nf_tables_net_id);
 	u32 id = ntohl(nla_get_be32(nla));
 	struct nft_trans *trans;
 
-	list_for_each_entry(trans, &net->nft.commit_list, list) {
+	list_for_each_entry(trans, &nft_net->commit_list, list) {
 		struct nft_rule *rule = nft_trans_rule(trans);
 
 		if (trans->msg_type == NFT_MSG_NEWRULE &&
@@ -3497,13 +3541,14 @@ nft_select_set_ops(const struct nft_ctx
 		   const struct nft_set_desc *desc,
 		   enum nft_set_policies policy)
 {
+	struct nftables_pernet *nft_net = net_generic(ctx->net, nf_tables_net_id);
 	const struct nft_set_ops *ops, *bops;
 	struct nft_set_estimate est, best;
 	const struct nft_set_type *type;
 	u32 flags = 0;
 	int i;
 
-	lockdep_assert_held(&ctx->net->nft.commit_mutex);
+	lockdep_assert_held(&nft_net->commit_mutex);
 	lockdep_nfnl_nft_mutex_not_held();
 
 	if (nla[NFTA_SET_FLAGS] != NULL)
@@ -3641,10 +3686,11 @@ static struct nft_set *nft_set_lookup_by
 					   const struct nft_table *table,
 					   const struct nlattr *nla, u8 genmask)
 {
+	struct nftables_pernet *nft_net = net_generic(net, nf_tables_net_id);
 	struct nft_trans *trans;
 	u32 id = ntohl(nla_get_be32(nla));
 
-	list_for_each_entry(trans, &net->nft.commit_list, list) {
+	list_for_each_entry(trans, &nft_net->commit_list, list) {
 		if (trans->msg_type == NFT_MSG_NEWSET) {
 			struct nft_set *set = nft_trans_set(trans);
 
@@ -3867,6 +3913,7 @@ static void nf_tables_set_notify(const s
 				 const struct nft_set *set, int event,
 			         gfp_t gfp_flags)
 {
+	struct nftables_pernet *nft_net = net_generic(ctx->net, nf_tables_net_id);
 	struct sk_buff *skb;
 	u32 portid = ctx->portid;
 	int err;
@@ -3885,7 +3932,7 @@ static void nf_tables_set_notify(const s
 		goto err;
 	}
 
-	nft_notify_enqueue(skb, ctx->report, &ctx->net->nft.notify_list);
+	nft_notify_enqueue(skb, ctx->report, &nft_net->notify_list);
 	return;
 err:
 	nfnetlink_set_err(ctx->net, portid, NFNLGRP_NFTABLES, -ENOBUFS);
@@ -3898,14 +3945,16 @@ static int nf_tables_dump_sets(struct sk
 	struct nft_table *table, *cur_table = (struct nft_table *)cb->args[2];
 	struct net *net = sock_net(skb->sk);
 	struct nft_ctx *ctx = cb->data, ctx_set;
+	struct nftables_pernet *nft_net;
 
 	if (cb->args[1])
 		return skb->len;
 
 	rcu_read_lock();
-	cb->seq = net->nft.base_seq;
+	nft_net = net_generic(net, nf_tables_net_id);
+	cb->seq = nft_net->base_seq;
 
-	list_for_each_entry_rcu(table, &net->nft.tables, list) {
+	list_for_each_entry_rcu(table, &nft_net->tables, list) {
 		if (ctx->family != NFPROTO_UNSPEC &&
 		    ctx->family != table->family)
 			continue;
@@ -4706,6 +4755,7 @@ static int nf_tables_dump_set(struct sk_
 {
 	struct nft_set_dump_ctx *dump_ctx = cb->data;
 	struct net *net = sock_net(skb->sk);
+	struct nftables_pernet *nft_net;
 	struct nft_table *table;
 	struct nft_set *set;
 	struct nft_set_dump_args args;
@@ -4716,7 +4766,8 @@ static int nf_tables_dump_set(struct sk_
 	int event;
 
 	rcu_read_lock();
-	list_for_each_entry_rcu(table, &net->nft.tables, list) {
+	nft_net = net_generic(net, nf_tables_net_id);
+	list_for_each_entry_rcu(table, &nft_net->tables, list) {
 		if (dump_ctx->ctx.family != NFPROTO_UNSPEC &&
 		    dump_ctx->ctx.family != table->family)
 			continue;
@@ -4995,6 +5046,7 @@ static void nf_tables_setelem_notify(con
 				     const struct nft_set_elem *elem,
 				     int event, u16 flags)
 {
+	struct nftables_pernet *nft_net;
 	struct net *net = ctx->net;
 	u32 portid = ctx->portid;
 	struct sk_buff *skb;
@@ -5014,7 +5066,8 @@ static void nf_tables_setelem_notify(con
 		goto err;
 	}
 
-	nft_notify_enqueue(skb, ctx->report, &ctx->net->nft.notify_list);
+	nft_net = net_generic(net, nf_tables_net_id);
+	nft_notify_enqueue(skb, ctx->report, &nft_net->notify_list);
 	return;
 err:
 	nfnetlink_set_err(net, portid, NFNLGRP_NFTABLES, -ENOBUFS);
@@ -5410,7 +5463,7 @@ static int nft_add_set_elem(struct nft_c
 	}
 
 	nft_trans_elem(trans) = elem;
-	list_add_tail(&trans->list, &ctx->net->nft.commit_list);
+	nft_trans_commit_list_add_tail(ctx->net, trans);
 	return 0;
 
 err_set_full:
@@ -5441,6 +5494,7 @@ static int nf_tables_newsetelem(struct n
 				const struct nlattr * const nla[],
 				struct netlink_ext_ack *extack)
 {
+	struct nftables_pernet *nft_net = net_generic(net, nf_tables_net_id);
 	u8 genmask = nft_genmask_next(net);
 	const struct nlattr *attr;
 	struct nft_set *set;
@@ -5470,7 +5524,7 @@ static int nf_tables_newsetelem(struct n
 			return err;
 	}
 
-	if (net->nft.validate_state == NFT_VALIDATE_DO)
+	if (nft_net->validate_state == NFT_VALIDATE_DO)
 		return nft_table_validate(net, ctx.table);
 
 	return 0;
@@ -5606,7 +5660,7 @@ static int nft_del_setelem(struct nft_ct
 	nft_set_elem_deactivate(ctx->net, set, &elem);
 
 	nft_trans_elem(trans) = elem;
-	list_add_tail(&trans->list, &ctx->net->nft.commit_list);
+	nft_trans_commit_list_add_tail(ctx->net, trans);
 	return 0;
 
 fail_ops:
@@ -5640,7 +5694,7 @@ static int nft_flush_set(const struct nf
 	nft_set_elem_deactivate(ctx->net, set, elem);
 	nft_trans_elem_set(trans) = set;
 	nft_trans_elem(trans) = *elem;
-	list_add_tail(&trans->list, &ctx->net->nft.commit_list);
+	nft_trans_commit_list_add_tail(ctx->net, trans);
 
 	return 0;
 err1:
@@ -5939,7 +5993,7 @@ static int nf_tables_updobj(const struct
 	nft_trans_obj(trans) = obj;
 	nft_trans_obj_update(trans) = true;
 	nft_trans_obj_newobj(trans) = newobj;
-	list_add_tail(&trans->list, &ctx->net->nft.commit_list);
+	nft_trans_commit_list_add_tail(ctx->net, trans);
 
 	return 0;
 
@@ -6102,6 +6156,7 @@ static int nf_tables_dump_obj(struct sk_
 	struct nft_obj_filter *filter = cb->data;
 	struct net *net = sock_net(skb->sk);
 	int family = nfmsg->nfgen_family;
+	struct nftables_pernet *nft_net;
 	struct nft_object *obj;
 	bool reset = false;
 
@@ -6109,9 +6164,10 @@ static int nf_tables_dump_obj(struct sk_
 		reset = true;
 
 	rcu_read_lock();
-	cb->seq = net->nft.base_seq;
+	nft_net = net_generic(net, nf_tables_net_id);
+	cb->seq = nft_net->base_seq;
 
-	list_for_each_entry_rcu(table, &net->nft.tables, list) {
+	list_for_each_entry_rcu(table, &nft_net->tables, list) {
 		if (family != NFPROTO_UNSPEC && family != table->family)
 			continue;
 
@@ -6134,7 +6190,7 @@ static int nf_tables_dump_obj(struct sk_
 				char *buf = kasprintf(GFP_ATOMIC,
 						      "%s:%u",
 						      table->name,
-						      net->nft.base_seq);
+						      nft_net->base_seq);
 
 				audit_log_nfcfg(buf,
 						family,
@@ -6255,8 +6311,11 @@ static int nf_tables_getobj(struct net *
 		reset = true;
 
 	if (reset) {
-		char *buf = kasprintf(GFP_ATOMIC, "%s:%u",
-				      table->name, net->nft.base_seq);
+		const struct nftables_pernet *nft_net;
+		char *buf;
+
+		nft_net = net_generic(net, nf_tables_net_id);
+		buf = kasprintf(GFP_ATOMIC, "%s:%u", table->name, nft_net->base_seq);
 
 		audit_log_nfcfg(buf,
 				family,
@@ -6341,10 +6400,11 @@ void nft_obj_notify(struct net *net, con
 		    struct nft_object *obj, u32 portid, u32 seq, int event,
 		    int family, int report, gfp_t gfp)
 {
+	struct nftables_pernet *nft_net = net_generic(net, nf_tables_net_id);
 	struct sk_buff *skb;
 	int err;
 	char *buf = kasprintf(gfp, "%s:%u",
-			      table->name, net->nft.base_seq);
+			      table->name, nft_net->base_seq);
 
 	audit_log_nfcfg(buf,
 			family,
@@ -6370,7 +6430,7 @@ void nft_obj_notify(struct net *net, con
 		goto err;
 	}
 
-	nft_notify_enqueue(skb, report, &net->nft.notify_list);
+	nft_notify_enqueue(skb, report, &nft_net->notify_list);
 	return;
 err:
 	nfnetlink_set_err(net, portid, NFNLGRP_NFTABLES, -ENOBUFS);
@@ -6706,7 +6766,7 @@ static int nft_flowtable_update(struct n
 	INIT_LIST_HEAD(&nft_trans_flowtable_hooks(trans));
 	list_splice(&flowtable_hook.list, &nft_trans_flowtable_hooks(trans));
 
-	list_add_tail(&trans->list, &ctx->net->nft.commit_list);
+	nft_trans_commit_list_add_tail(ctx->net, trans);
 
 	return 0;
 
@@ -6896,7 +6956,7 @@ static int nft_delflowtable_hook(struct
 	list_splice(&flowtable_del_list, &nft_trans_flowtable_hooks(trans));
 	nft_flowtable_hook_release(&flowtable_hook);
 
-	list_add_tail(&trans->list, &ctx->net->nft.commit_list);
+	nft_trans_commit_list_add_tail(ctx->net, trans);
 
 	return 0;
 
@@ -7022,12 +7082,14 @@ static int nf_tables_dump_flowtable(stru
 	struct net *net = sock_net(skb->sk);
 	int family = nfmsg->nfgen_family;
 	struct nft_flowtable *flowtable;
+	struct nftables_pernet *nft_net;
 	const struct nft_table *table;
 
 	rcu_read_lock();
-	cb->seq = net->nft.base_seq;
+	nft_net = net_generic(net, nf_tables_net_id);
+	cb->seq = nft_net->base_seq;
 
-	list_for_each_entry_rcu(table, &net->nft.tables, list) {
+	list_for_each_entry_rcu(table, &nft_net->tables, list) {
 		if (family != NFPROTO_UNSPEC && family != table->family)
 			continue;
 
@@ -7162,6 +7224,7 @@ static void nf_tables_flowtable_notify(s
 				       struct list_head *hook_list,
 				       int event)
 {
+	struct nftables_pernet *nft_net = net_generic(ctx->net, nf_tables_net_id);
 	struct sk_buff *skb;
 	int err;
 
@@ -7181,7 +7244,7 @@ static void nf_tables_flowtable_notify(s
 		goto err;
 	}
 
-	nft_notify_enqueue(skb, ctx->report, &ctx->net->nft.notify_list);
+	nft_notify_enqueue(skb, ctx->report, &nft_net->notify_list);
 	return;
 err:
 	nfnetlink_set_err(ctx->net, ctx->portid, NFNLGRP_NFTABLES, -ENOBUFS);
@@ -7206,6 +7269,7 @@ static void nf_tables_flowtable_destroy(
 static int nf_tables_fill_gen_info(struct sk_buff *skb, struct net *net,
 				   u32 portid, u32 seq)
 {
+	struct nftables_pernet *nft_net = net_generic(net, nf_tables_net_id);
 	struct nlmsghdr *nlh;
 	char buf[TASK_COMM_LEN];
 	int event = nfnl_msg_type(NFNL_SUBSYS_NFTABLES, NFT_MSG_NEWGEN);
@@ -7215,7 +7279,7 @@ static int nf_tables_fill_gen_info(struc
 	if (!nlh)
 		goto nla_put_failure;
 
-	if (nla_put_be32(skb, NFTA_GEN_ID, htonl(net->nft.base_seq)) ||
+	if (nla_put_be32(skb, NFTA_GEN_ID, htonl(nft_net->base_seq)) ||
 	    nla_put_be32(skb, NFTA_GEN_PROC_PID, htonl(task_pid_nr(current))) ||
 	    nla_put_string(skb, NFTA_GEN_PROC_NAME, get_task_comm(buf, current)))
 		goto nla_put_failure;
@@ -7250,6 +7314,7 @@ static int nf_tables_flowtable_event(str
 {
 	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	struct nft_flowtable *flowtable;
+	struct nftables_pernet *nft_net;
 	struct nft_table *table;
 	struct net *net;
 
@@ -7257,13 +7322,14 @@ static int nf_tables_flowtable_event(str
 		return 0;
 
 	net = dev_net(dev);
-	mutex_lock(&net->nft.commit_mutex);
-	list_for_each_entry(table, &net->nft.tables, list) {
+	nft_net = net_generic(net, nf_tables_net_id);
+	mutex_lock(&nft_net->commit_mutex);
+	list_for_each_entry(table, &nft_net->tables, list) {
 		list_for_each_entry(flowtable, &table->flowtables, list) {
 			nft_flowtable_event(event, dev, flowtable);
 		}
 	}
-	mutex_unlock(&net->nft.commit_mutex);
+	mutex_unlock(&nft_net->commit_mutex);
 
 	return NOTIFY_DONE;
 }
@@ -7444,16 +7510,17 @@ static const struct nfnl_callback nf_tab
 
 static int nf_tables_validate(struct net *net)
 {
+	struct nftables_pernet *nft_net = net_generic(net, nf_tables_net_id);
 	struct nft_table *table;
 
-	switch (net->nft.validate_state) {
+	switch (nft_net->validate_state) {
 	case NFT_VALIDATE_SKIP:
 		break;
 	case NFT_VALIDATE_NEED:
 		nft_validate_state_update(net, NFT_VALIDATE_DO);
 		fallthrough;
 	case NFT_VALIDATE_DO:
-		list_for_each_entry(table, &net->nft.tables, list) {
+		list_for_each_entry(table, &nft_net->tables, list) {
 			if (nft_table_validate(net, table) < 0)
 				return -EAGAIN;
 		}
@@ -7630,9 +7697,10 @@ static int nf_tables_commit_chain_prepar
 
 static void nf_tables_commit_chain_prepare_cancel(struct net *net)
 {
+	struct nftables_pernet *nft_net = net_generic(net, nf_tables_net_id);
 	struct nft_trans *trans, *next;
 
-	list_for_each_entry_safe(trans, next, &net->nft.commit_list, list) {
+	list_for_each_entry_safe(trans, next, &nft_net->commit_list, list) {
 		struct nft_chain *chain = trans->ctx.chain;
 
 		if (trans->msg_type == NFT_MSG_NEWRULE ||
@@ -7730,10 +7798,11 @@ void nft_chain_del(struct nft_chain *cha
 
 static void nf_tables_module_autoload_cleanup(struct net *net)
 {
+	struct nftables_pernet *nft_net = net_generic(net, nf_tables_net_id);
 	struct nft_module_request *req, *next;
 
-	WARN_ON_ONCE(!list_empty(&net->nft.commit_list));
-	list_for_each_entry_safe(req, next, &net->nft.module_list, list) {
+	WARN_ON_ONCE(!list_empty(&nft_net->commit_list));
+	list_for_each_entry_safe(req, next, &nft_net->module_list, list) {
 		WARN_ON_ONCE(!req->done);
 		list_del(&req->list);
 		kfree(req);
@@ -7742,6 +7811,7 @@ static void nf_tables_module_autoload_cl
 
 static void nf_tables_commit_release(struct net *net)
 {
+	struct nftables_pernet *nft_net = net_generic(net, nf_tables_net_id);
 	struct nft_trans *trans;
 
 	/* all side effects have to be made visible.
@@ -7751,35 +7821,36 @@ static void nf_tables_commit_release(str
 	 * Memory reclaim happens asynchronously from work queue
 	 * to prevent expensive synchronize_rcu() in commit phase.
 	 */
-	if (list_empty(&net->nft.commit_list)) {
+	if (list_empty(&nft_net->commit_list)) {
 		nf_tables_module_autoload_cleanup(net);
-		mutex_unlock(&net->nft.commit_mutex);
+		mutex_unlock(&nft_net->commit_mutex);
 		return;
 	}
 
-	trans = list_last_entry(&net->nft.commit_list,
+	trans = list_last_entry(&nft_net->commit_list,
 				struct nft_trans, list);
 	get_net(trans->ctx.net);
 	WARN_ON_ONCE(trans->put_net);
 
 	trans->put_net = true;
 	spin_lock(&nf_tables_destroy_list_lock);
-	list_splice_tail_init(&net->nft.commit_list, &nf_tables_destroy_list);
+	list_splice_tail_init(&nft_net->commit_list, &nf_tables_destroy_list);
 	spin_unlock(&nf_tables_destroy_list_lock);
 
 	nf_tables_module_autoload_cleanup(net);
 	schedule_work(&trans_destroy_work);
 
-	mutex_unlock(&net->nft.commit_mutex);
+	mutex_unlock(&nft_net->commit_mutex);
 }
 
 static void nft_commit_notify(struct net *net, u32 portid)
 {
+	struct nftables_pernet *nft_net = net_generic(net, nf_tables_net_id);
 	struct sk_buff *batch_skb = NULL, *nskb, *skb;
 	unsigned char *data;
 	int len;
 
-	list_for_each_entry_safe(skb, nskb, &net->nft.notify_list, list) {
+	list_for_each_entry_safe(skb, nskb, &nft_net->notify_list, list) {
 		if (!batch_skb) {
 new_batch:
 			batch_skb = skb;
@@ -7805,7 +7876,7 @@ new_batch:
 			       NFT_CB(batch_skb).report, GFP_KERNEL);
 	}
 
-	WARN_ON_ONCE(!list_empty(&net->nft.notify_list));
+	WARN_ON_ONCE(!list_empty(&nft_net->notify_list));
 }
 
 static int nf_tables_commit_audit_alloc(struct list_head *adl,
@@ -7871,6 +7942,7 @@ static void nf_tables_commit_audit_log(s
 
 static int nf_tables_commit(struct net *net, struct sk_buff *skb)
 {
+	struct nftables_pernet *nft_net = net_generic(net, nf_tables_net_id);
 	struct nft_trans *trans, *next;
 	struct nft_trans_elem *te;
 	struct nft_chain *chain;
@@ -7878,8 +7950,8 @@ static int nf_tables_commit(struct net *
 	LIST_HEAD(adl);
 	int err;
 
-	if (list_empty(&net->nft.commit_list)) {
-		mutex_unlock(&net->nft.commit_mutex);
+	if (list_empty(&nft_net->commit_list)) {
+		mutex_unlock(&nft_net->commit_mutex);
 		return 0;
 	}
 
@@ -7892,7 +7964,7 @@ static int nf_tables_commit(struct net *
 		return err;
 
 	/* 1.  Allocate space for next generation rules_gen_X[] */
-	list_for_each_entry_safe(trans, next, &net->nft.commit_list, list) {
+	list_for_each_entry_safe(trans, next, &nft_net->commit_list, list) {
 		int ret;
 
 		ret = nf_tables_commit_audit_alloc(&adl, trans->ctx.table);
@@ -7915,7 +7987,7 @@ static int nf_tables_commit(struct net *
 	}
 
 	/* step 2.  Make rules_gen_X visible to packet path */
-	list_for_each_entry(table, &net->nft.tables, list) {
+	list_for_each_entry(table, &nft_net->tables, list) {
 		list_for_each_entry(chain, &table->chains, list)
 			nf_tables_commit_chain(net, chain);
 	}
@@ -7924,12 +7996,13 @@ static int nf_tables_commit(struct net *
 	 * Bump generation counter, invalidate any dump in progress.
 	 * Cannot fail after this point.
 	 */
-	while (++net->nft.base_seq == 0);
+	while (++nft_net->base_seq == 0)
+		;
 
 	/* step 3. Start new generation, rules_gen_X now in use. */
 	net->nft.gencursor = nft_gencursor_next(net);
 
-	list_for_each_entry_safe(trans, next, &net->nft.commit_list, list) {
+	list_for_each_entry_safe(trans, next, &nft_net->commit_list, list) {
 		nf_tables_commit_audit_collect(&adl, trans->ctx.table,
 					       trans->msg_type);
 		switch (trans->msg_type) {
@@ -8089,7 +8162,7 @@ static int nf_tables_commit(struct net *
 
 	nft_commit_notify(net, NETLINK_CB(skb).portid);
 	nf_tables_gen_notify(net, skb, NFT_MSG_NEWGEN);
-	nf_tables_commit_audit_log(&adl, net->nft.base_seq);
+	nf_tables_commit_audit_log(&adl, nft_net->base_seq);
 	nf_tables_commit_release(net);
 
 	return 0;
@@ -8097,17 +8170,18 @@ static int nf_tables_commit(struct net *
 
 static void nf_tables_module_autoload(struct net *net)
 {
+	struct nftables_pernet *nft_net = net_generic(net, nf_tables_net_id);
 	struct nft_module_request *req, *next;
 	LIST_HEAD(module_list);
 
-	list_splice_init(&net->nft.module_list, &module_list);
-	mutex_unlock(&net->nft.commit_mutex);
+	list_splice_init(&nft_net->module_list, &module_list);
+	mutex_unlock(&nft_net->commit_mutex);
 	list_for_each_entry_safe(req, next, &module_list, list) {
 		request_module("%s", req->module);
 		req->done = true;
 	}
-	mutex_lock(&net->nft.commit_mutex);
-	list_splice(&module_list, &net->nft.module_list);
+	mutex_lock(&nft_net->commit_mutex);
+	list_splice(&module_list, &nft_net->module_list);
 }
 
 static void nf_tables_abort_release(struct nft_trans *trans)
@@ -8144,6 +8218,7 @@ static void nf_tables_abort_release(stru
 
 static int __nf_tables_abort(struct net *net, enum nfnl_abort_action action)
 {
+	struct nftables_pernet *nft_net = net_generic(net, nf_tables_net_id);
 	struct nft_trans *trans, *next;
 	struct nft_trans_elem *te;
 
@@ -8151,7 +8226,7 @@ static int __nf_tables_abort(struct net
 	    nf_tables_validate(net) < 0)
 		return -EAGAIN;
 
-	list_for_each_entry_safe_reverse(trans, next, &net->nft.commit_list,
+	list_for_each_entry_safe_reverse(trans, next, &nft_net->commit_list,
 					 list) {
 		switch (trans->msg_type) {
 		case NFT_MSG_NEWTABLE:
@@ -8277,7 +8352,7 @@ static int __nf_tables_abort(struct net
 	synchronize_rcu();
 
 	list_for_each_entry_safe_reverse(trans, next,
-					 &net->nft.commit_list, list) {
+					 &nft_net->commit_list, list) {
 		list_del(&trans->list);
 		nf_tables_abort_release(trans);
 	}
@@ -8293,22 +8368,24 @@ static int __nf_tables_abort(struct net
 static int nf_tables_abort(struct net *net, struct sk_buff *skb,
 			   enum nfnl_abort_action action)
 {
+	struct nftables_pernet *nft_net = net_generic(net, nf_tables_net_id);
 	int ret = __nf_tables_abort(net, action);
 
-	mutex_unlock(&net->nft.commit_mutex);
+	mutex_unlock(&nft_net->commit_mutex);
 
 	return ret;
 }
 
 static bool nf_tables_valid_genid(struct net *net, u32 genid)
 {
+	struct nftables_pernet *nft_net = net_generic(net, nf_tables_net_id);
 	bool genid_ok;
 
-	mutex_lock(&net->nft.commit_mutex);
+	mutex_lock(&nft_net->commit_mutex);
 
-	genid_ok = genid == 0 || net->nft.base_seq == genid;
+	genid_ok = genid == 0 || nft_net->base_seq == genid;
 	if (!genid_ok)
-		mutex_unlock(&net->nft.commit_mutex);
+		mutex_unlock(&nft_net->commit_mutex);
 
 	/* else, commit mutex has to be released by commit or abort function */
 	return genid_ok;
@@ -8909,19 +8986,19 @@ EXPORT_SYMBOL_GPL(__nft_release_basechai
 
 static void __nft_release_hooks(struct net *net)
 {
+	struct nftables_pernet *nft_net = net_generic(net, nf_tables_net_id);
 	struct nft_table *table;
 	struct nft_chain *chain;
 
-	list_for_each_entry(table, &net->nft.tables, list) {
+	list_for_each_entry(table, &nft_net->tables, list) {
 		list_for_each_entry(chain, &table->chains, list)
 			nf_tables_unregister_hook(net, table, chain);
 	}
 }
 
-static void __nft_release_tables(struct net *net)
+static void __nft_release_table(struct net *net, struct nft_table *table)
 {
 	struct nft_flowtable *flowtable, *nf;
-	struct nft_table *table, *nt;
 	struct nft_chain *chain, *nc;
 	struct nft_object *obj, *ne;
 	struct nft_rule *rule, *nr;
@@ -8931,79 +9008,94 @@ static void __nft_release_tables(struct
 		.family	= NFPROTO_NETDEV,
 	};
 
-	list_for_each_entry_safe(table, nt, &net->nft.tables, list) {
-		ctx.family = table->family;
-		ctx.table = table;
-		list_for_each_entry(chain, &table->chains, list) {
-			ctx.chain = chain;
-			list_for_each_entry_safe(rule, nr, &chain->rules, list) {
-				list_del(&rule->list);
-				chain->use--;
-				nf_tables_rule_release(&ctx, rule);
-			}
-		}
-		list_for_each_entry_safe(flowtable, nf, &table->flowtables, list) {
-			list_del(&flowtable->list);
-			table->use--;
-			nf_tables_flowtable_destroy(flowtable);
-		}
-		list_for_each_entry_safe(set, ns, &table->sets, list) {
-			list_del(&set->list);
-			table->use--;
-			nft_set_destroy(&ctx, set);
-		}
-		list_for_each_entry_safe(obj, ne, &table->objects, list) {
-			nft_obj_del(obj);
-			table->use--;
-			nft_obj_destroy(&ctx, obj);
-		}
-		list_for_each_entry_safe(chain, nc, &table->chains, list) {
-			ctx.chain = chain;
-			nft_chain_del(chain);
-			table->use--;
-			nf_tables_chain_destroy(&ctx);
+	ctx.family = table->family;
+	ctx.table = table;
+	list_for_each_entry(chain, &table->chains, list) {
+		ctx.chain = chain;
+		list_for_each_entry_safe(rule, nr, &chain->rules, list) {
+			list_del(&rule->list);
+			chain->use--;
+			nf_tables_rule_release(&ctx, rule);
 		}
-		list_del(&table->list);
-		nf_tables_table_destroy(&ctx);
 	}
+	list_for_each_entry_safe(flowtable, nf, &table->flowtables, list) {
+		list_del(&flowtable->list);
+		table->use--;
+		nf_tables_flowtable_destroy(flowtable);
+	}
+	list_for_each_entry_safe(set, ns, &table->sets, list) {
+		list_del(&set->list);
+		table->use--;
+		nft_set_destroy(&ctx, set);
+	}
+	list_for_each_entry_safe(obj, ne, &table->objects, list) {
+		nft_obj_del(obj);
+		table->use--;
+		nft_obj_destroy(&ctx, obj);
+	}
+	list_for_each_entry_safe(chain, nc, &table->chains, list) {
+		ctx.chain = chain;
+		nft_chain_del(chain);
+		table->use--;
+		nf_tables_chain_destroy(&ctx);
+	}
+	list_del(&table->list);
+	nf_tables_table_destroy(&ctx);
+}
+
+static void __nft_release_tables(struct net *net)
+{
+	struct nftables_pernet *nft_net = net_generic(net, nf_tables_net_id);
+	struct nft_table *table, *nt;
+
+	list_for_each_entry_safe(table, nt, &nft_net->tables, list)
+		__nft_release_table(net, table);
 }
 
 static int __net_init nf_tables_init_net(struct net *net)
 {
-	INIT_LIST_HEAD(&net->nft.tables);
-	INIT_LIST_HEAD(&net->nft.commit_list);
-	INIT_LIST_HEAD(&net->nft.module_list);
-	INIT_LIST_HEAD(&net->nft.notify_list);
-	mutex_init(&net->nft.commit_mutex);
-	net->nft.base_seq = 1;
-	net->nft.validate_state = NFT_VALIDATE_SKIP;
+	struct nftables_pernet *nft_net = net_generic(net, nf_tables_net_id);
+
+	INIT_LIST_HEAD(&nft_net->tables);
+	INIT_LIST_HEAD(&nft_net->commit_list);
+	INIT_LIST_HEAD(&nft_net->module_list);
+	INIT_LIST_HEAD(&nft_net->notify_list);
+	mutex_init(&nft_net->commit_mutex);
+	nft_net->base_seq = 1;
+	nft_net->validate_state = NFT_VALIDATE_SKIP;
 
 	return 0;
 }
 
 static void __net_exit nf_tables_pre_exit_net(struct net *net)
 {
-	mutex_lock(&net->nft.commit_mutex);
+	struct nftables_pernet *nft_net = net_generic(net, nf_tables_net_id);
+
+	mutex_lock(&nft_net->commit_mutex);
 	__nft_release_hooks(net);
-	mutex_unlock(&net->nft.commit_mutex);
+	mutex_unlock(&nft_net->commit_mutex);
 }
 
 static void __net_exit nf_tables_exit_net(struct net *net)
 {
-	mutex_lock(&net->nft.commit_mutex);
-	if (!list_empty(&net->nft.commit_list))
+	struct nftables_pernet *nft_net = net_generic(net, nf_tables_net_id);
+
+	mutex_lock(&nft_net->commit_mutex);
+	if (!list_empty(&nft_net->commit_list))
 		__nf_tables_abort(net, NFNL_ABORT_NONE);
 	__nft_release_tables(net);
-	mutex_unlock(&net->nft.commit_mutex);
-	WARN_ON_ONCE(!list_empty(&net->nft.tables));
-	WARN_ON_ONCE(!list_empty(&net->nft.module_list));
-	WARN_ON_ONCE(!list_empty(&net->nft.notify_list));
+	mutex_unlock(&nft_net->commit_mutex);
+	WARN_ON_ONCE(!list_empty(&nft_net->tables));
+	WARN_ON_ONCE(!list_empty(&nft_net->module_list));
+	WARN_ON_ONCE(!list_empty(&nft_net->notify_list));
 }
 
 static struct pernet_operations nf_tables_net_ops = {
 	.init		= nf_tables_init_net,
 	.pre_exit	= nf_tables_pre_exit_net,
 	.exit		= nf_tables_exit_net,
+	.id		= &nf_tables_net_id,
+	.size		= sizeof(struct nftables_pernet),
 };
 
 static int __init nf_tables_module_init(void)
--- a/net/netfilter/nf_tables_offload.c
+++ b/net/netfilter/nf_tables_offload.c
@@ -7,6 +7,8 @@
 #include <net/netfilter/nf_tables_offload.h>
 #include <net/pkt_cls.h>
 
+extern unsigned int nf_tables_net_id;
+
 static struct nft_flow_rule *nft_flow_rule_alloc(int num_actions)
 {
 	struct nft_flow_rule *flow;
@@ -371,16 +373,18 @@ static void nft_indr_block_cleanup(struc
 	struct nft_base_chain *basechain = block_cb->indr.data;
 	struct net_device *dev = block_cb->indr.dev;
 	struct netlink_ext_ack extack = {};
+	struct nftables_pernet *nft_net;
 	struct net *net = dev_net(dev);
 	struct flow_block_offload bo;
 
 	nft_flow_block_offload_init(&bo, dev_net(dev), FLOW_BLOCK_UNBIND,
 				    basechain, &extack);
-	mutex_lock(&net->nft.commit_mutex);
+	nft_net = net_generic(net, nf_tables_net_id);
+	mutex_lock(&nft_net->commit_mutex);
 	list_del(&block_cb->driver_list);
 	list_move(&block_cb->list, &bo.cb_list);
 	nft_flow_offload_unbind(&bo, basechain);
-	mutex_unlock(&net->nft.commit_mutex);
+	mutex_unlock(&nft_net->commit_mutex);
 }
 
 static int nft_indr_block_offload_cmd(struct nft_base_chain *basechain,
@@ -476,9 +480,10 @@ static int nft_flow_offload_chain(struct
 static void nft_flow_rule_offload_abort(struct net *net,
 					struct nft_trans *trans)
 {
+	struct nftables_pernet *nft_net = net_generic(net, nf_tables_net_id);
 	int err = 0;
 
-	list_for_each_entry_continue_reverse(trans, &net->nft.commit_list, list) {
+	list_for_each_entry_continue_reverse(trans, &nft_net->commit_list, list) {
 		if (trans->ctx.family != NFPROTO_NETDEV)
 			continue;
 
@@ -524,11 +529,12 @@ static void nft_flow_rule_offload_abort(
 
 int nft_flow_rule_offload_commit(struct net *net)
 {
+	struct nftables_pernet *nft_net = net_generic(net, nf_tables_net_id);
 	struct nft_trans *trans;
 	int err = 0;
 	u8 policy;
 
-	list_for_each_entry(trans, &net->nft.commit_list, list) {
+	list_for_each_entry(trans, &nft_net->commit_list, list) {
 		if (trans->ctx.family != NFPROTO_NETDEV)
 			continue;
 
@@ -580,7 +586,7 @@ int nft_flow_rule_offload_commit(struct
 		}
 	}
 
-	list_for_each_entry(trans, &net->nft.commit_list, list) {
+	list_for_each_entry(trans, &nft_net->commit_list, list) {
 		if (trans->ctx.family != NFPROTO_NETDEV)
 			continue;
 
@@ -600,15 +606,15 @@ int nft_flow_rule_offload_commit(struct
 	return err;
 }
 
-static struct nft_chain *__nft_offload_get_chain(struct net_device *dev)
+static struct nft_chain *__nft_offload_get_chain(const struct nftables_pernet *nft_net,
+						 struct net_device *dev)
 {
 	struct nft_base_chain *basechain;
-	struct net *net = dev_net(dev);
 	struct nft_hook *hook, *found;
 	const struct nft_table *table;
 	struct nft_chain *chain;
 
-	list_for_each_entry(table, &net->nft.tables, list) {
+	list_for_each_entry(table, &nft_net->tables, list) {
 		if (table->family != NFPROTO_NETDEV)
 			continue;
 
@@ -640,19 +646,21 @@ static int nft_offload_netdev_event(stru
 				    unsigned long event, void *ptr)
 {
 	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
+	struct nftables_pernet *nft_net;
 	struct net *net = dev_net(dev);
 	struct nft_chain *chain;
 
 	if (event != NETDEV_UNREGISTER)
 		return NOTIFY_DONE;
 
-	mutex_lock(&net->nft.commit_mutex);
-	chain = __nft_offload_get_chain(dev);
+	nft_net = net_generic(net, nf_tables_net_id);
+	mutex_lock(&nft_net->commit_mutex);
+	chain = __nft_offload_get_chain(nft_net, dev);
 	if (chain)
 		nft_flow_block_chain(nft_base_chain(chain), dev,
 				     FLOW_BLOCK_UNBIND);
 
-	mutex_unlock(&net->nft.commit_mutex);
+	mutex_unlock(&nft_net->commit_mutex);
 
 	return NOTIFY_DONE;
 }
--- a/net/netfilter/nft_chain_filter.c
+++ b/net/netfilter/nft_chain_filter.c
@@ -2,6 +2,7 @@
 #include <linux/kernel.h>
 #include <linux/netdevice.h>
 #include <net/net_namespace.h>
+#include <net/netns/generic.h>
 #include <net/netfilter/nf_tables.h>
 #include <linux/netfilter_ipv4.h>
 #include <linux/netfilter_ipv6.h>
@@ -10,6 +11,8 @@
 #include <net/netfilter/nf_tables_ipv4.h>
 #include <net/netfilter/nf_tables_ipv6.h>
 
+extern unsigned int nf_tables_net_id;
+
 #ifdef CONFIG_NF_TABLES_IPV4
 static unsigned int nft_do_chain_ipv4(void *priv,
 				      struct sk_buff *skb,
@@ -355,6 +358,7 @@ static int nf_tables_netdev_event(struct
 				  unsigned long event, void *ptr)
 {
 	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
+	struct nftables_pernet *nft_net;
 	struct nft_table *table;
 	struct nft_chain *chain, *nr;
 	struct nft_ctx ctx = {
@@ -365,8 +369,9 @@ static int nf_tables_netdev_event(struct
 	    event != NETDEV_CHANGENAME)
 		return NOTIFY_DONE;
 
-	mutex_lock(&ctx.net->nft.commit_mutex);
-	list_for_each_entry(table, &ctx.net->nft.tables, list) {
+	nft_net = net_generic(ctx.net, nf_tables_net_id);
+	mutex_lock(&nft_net->commit_mutex);
+	list_for_each_entry(table, &nft_net->tables, list) {
 		if (table->family != NFPROTO_NETDEV)
 			continue;
 
@@ -380,7 +385,7 @@ static int nf_tables_netdev_event(struct
 			nft_netdev_event(event, dev, &ctx);
 		}
 	}
-	mutex_unlock(&ctx.net->nft.commit_mutex);
+	mutex_unlock(&nft_net->commit_mutex);
 
 	return NOTIFY_DONE;
 }
--- a/net/netfilter/nft_dynset.c
+++ b/net/netfilter/nft_dynset.c
@@ -11,6 +11,9 @@
 #include <linux/netfilter/nf_tables.h>
 #include <net/netfilter/nf_tables.h>
 #include <net/netfilter/nf_tables_core.h>
+#include <net/netns/generic.h>
+
+extern unsigned int nf_tables_net_id;
 
 struct nft_dynset {
 	struct nft_set			*set;
@@ -106,13 +109,14 @@ static int nft_dynset_init(const struct
 			   const struct nft_expr *expr,
 			   const struct nlattr * const tb[])
 {
+	struct nftables_pernet *nft_net = net_generic(ctx->net, nf_tables_net_id);
 	struct nft_dynset *priv = nft_expr_priv(expr);
 	u8 genmask = nft_genmask_next(ctx->net);
 	struct nft_set *set;
 	u64 timeout;
 	int err;
 
-	lockdep_assert_held(&ctx->net->nft.commit_mutex);
+	lockdep_assert_held(&nft_net->commit_mutex);
 
 	if (tb[NFTA_DYNSET_SET_NAME] == NULL ||
 	    tb[NFTA_DYNSET_OP] == NULL ||