Merge tag 'nf-next-24-11-07' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next

Pablo Neira Ayuso says:

====================
Netfilter updates for net-next

The following series contains Netfilter updates for net-next:

1) Make legacy xtables configs user selectable, from Breno Leitao.

2) Fix a few sparse warnings related to percpu, from Uros Bizjak.

3) Use strscpy_pad, from Justin Stitt.

4) Use nft_trans_elem_alloc() in catchall flush, from Florian Westphal.

5) A series of 7 patches to fix false positive with CONFIG_RCU_LIST=y.
   Florian also sees possible issue with 10 while module load/removal
   when requesting an expression that is available via module. As for
   patch 11, object is being updated so reference on the module already
   exists so I don't see any real issue.

   Florian says:

   "Unfortunately there are many more errors, and not all are false positives.

   First patches pass lockdep_commit_lock_is_held() to the rcu list traversal
   macro so that those splats are avoided.

   The last two patches are real code change as opposed to
   'pass the transaction mutex to relax rcu check':

   Those two lists are not protected by transaction mutex so could be altered
   in parallel.

   This targets nf-next because these are long-standing issues."

netfilter pull request 24-11-07

* tag 'nf-next-24-11-07' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next:
  netfilter: nf_tables: must hold rcu read lock while iterating object type list
  netfilter: nf_tables: must hold rcu read lock while iterating expression type list
  netfilter: nf_tables: avoid false-positive lockdep splats with basechain hook
  netfilter: nf_tables: avoid false-positive lockdep splats in set walker
  netfilter: nf_tables: avoid false-positive lockdep splats with flowtables
  netfilter: nf_tables: avoid false-positive lockdep splats with sets
  netfilter: nf_tables: avoid false-positive lockdep splat on rule deletion
  netfilter: nf_tables: prefer nft_trans_elem_alloc helper
  netfilter: nf_tables: replace deprecated strncpy with strscpy_pad
  netfilter: nf_tables: Fix percpu address space issues in nf_tables_api.c
  netfilter: Make legacy configs user selectable
====================

Link: https://patch.msgid.link/20241106234625.168468-1-pablo@netfilter.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

9 files changed, 119 insertions, 68 deletions

diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h
index 91ae20cb7648..c1513bd14568 100644
--- a/include/net/netfilter/nf_tables.h
+++ b/include/net/netfilter/nf_tables.h
@@ -1463,7 +1463,8 @@ struct nft_flowtable {
 	struct nf_flowtable		data;
 };
 
-struct nft_flowtable *nft_flowtable_lookup(const struct nft_table *table,
+struct nft_flowtable *nft_flowtable_lookup(const struct net *net,
+					   const struct nft_table *table,
 					   const struct nlattr *nla,
 					   u8 genmask);
 
diff --git a/net/bridge/netfilter/Kconfig b/net/bridge/netfilter/Kconfig
index 104c0125e32e..f16bbbbb9481 100644
--- a/net/bridge/netfilter/Kconfig
+++ b/net/bridge/netfilter/Kconfig
@@ -41,7 +41,13 @@ config NF_CONNTRACK_BRIDGE
 
 # old sockopt interface and eval loop
 config BRIDGE_NF_EBTABLES_LEGACY
-	tristate
+	tristate "Legacy EBTABLES support"
+	depends on BRIDGE && NETFILTER_XTABLES
+	default n
+	help
+	 Legacy ebtables packet/frame classifier.
+	 This is not needed if you are using ebtables over nftables
+	 (iptables-nft).
 
 menuconfig BRIDGE_NF_EBTABLES
 	tristate "Ethernet Bridge tables (ebtables) support"
diff --git a/net/bridge/netfilter/nft_meta_bridge.c b/net/bridge/netfilter/nft_meta_bridge.c
index d12a221366d6..5adced1e7d0c 100644
--- a/net/bridge/netfilter/nft_meta_bridge.c
+++ b/net/bridge/netfilter/nft_meta_bridge.c
@@ -63,7 +63,7 @@ static void nft_meta_bridge_get_eval(const struct nft_expr *expr,
 		return nft_meta_get_eval(expr, regs, pkt);
 	}
 
-	strncpy((char *)dest, br_dev ? br_dev->name : "", IFNAMSIZ);
+	strscpy_pad((char *)dest, br_dev ? br_dev->name : "", IFNAMSIZ);
 	return;
 err:
 	regs->verdict.code = NFT_BREAK;
diff --git a/net/ipv4/netfilter/Kconfig b/net/ipv4/netfilter/Kconfig
index 1b991b889506..ef8009281da5 100644
--- a/net/ipv4/netfilter/Kconfig
+++ b/net/ipv4/netfilter/Kconfig
@@ -12,7 +12,13 @@ config NF_DEFRAG_IPV4
 
 # old sockopt interface and eval loop
 config IP_NF_IPTABLES_LEGACY
-	tristate
+	tristate "Legacy IP tables support"
+	default	n
+	select NETFILTER_XTABLES
+	help
+	  iptables is a legacy packet classifier.
+	  This is not needed if you are using iptables over nftables
+	  (iptables-nft).
 
 config NF_SOCKET_IPV4
 	tristate "IPv4 socket lookup support"
@@ -318,7 +324,13 @@ endif # IP_NF_IPTABLES
 
 # ARP tables
 config IP_NF_ARPTABLES
-	tristate
+	tristate "Legacy ARPTABLES support"
+	depends on NETFILTER_XTABLES
+	default n
+	help
+	  arptables is a legacy packet classifier.
+	  This is not needed if you are using arptables over nftables
+	  (iptables-nft).
 
 config NFT_COMPAT_ARP
 	tristate
diff --git a/net/ipv6/netfilter/Kconfig b/net/ipv6/netfilter/Kconfig
index f3c8e2d918e1..e087a8e97ba7 100644
--- a/net/ipv6/netfilter/Kconfig
+++ b/net/ipv6/netfilter/Kconfig
@@ -8,7 +8,14 @@ menu "IPv6: Netfilter Configuration"
 
 # old sockopt interface and eval loop
 config IP6_NF_IPTABLES_LEGACY
-	tristate
+	tristate "Legacy IP6 tables support"
+	depends on INET && IPV6
+	select NETFILTER_XTABLES
+	default n
+	help
+	  ip6tables is a legacy packet classifier.
+	  This is not needed if you are using iptables over nftables
+	  (iptables-nft).
 
 config NF_SOCKET_IPV6
 	tristate "IPv6 socket lookup support"
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index a24fe62650a7..b7a817e483aa 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -1824,7 +1824,8 @@ nla_put_failure:
 	return -ENOSPC;
 }
 
-static int nft_dump_basechain_hook(struct sk_buff *skb, int family,
+static int nft_dump_basechain_hook(struct sk_buff *skb,
+				   const struct net *net, int family,
 				   const struct nft_base_chain *basechain,
 				   const struct list_head *hook_list)
 {
@@ -1849,7 +1850,8 @@ static int nft_dump_basechain_hook(struct sk_buff *skb, int family,
 		if (!hook_list)
 			hook_list = &basechain->hook_list;
 
-		list_for_each_entry_rcu(hook, hook_list, list) {
+		list_for_each_entry_rcu(hook, hook_list, list,
+					lockdep_commit_lock_is_held(net)) {
 			if (!first)
 				first = hook;
 
@@ -1900,7 +1902,7 @@ static int nf_tables_fill_chain_info(struct sk_buff *skb, struct net *net,
 		const struct nft_base_chain *basechain = nft_base_chain(chain);
 		struct nft_stats __percpu *stats;
 
-		if (nft_dump_basechain_hook(skb, family, basechain, hook_list))
+		if (nft_dump_basechain_hook(skb, net, family, basechain, hook_list))
 			goto nla_put_failure;
 
 		if (nla_put_be32(skb, NFTA_CHAIN_POLICY,
@@ -2082,14 +2084,14 @@ static struct nft_stats __percpu *nft_stats_alloc(const struct nlattr *attr)
 	err = nla_parse_nested_deprecated(tb, NFTA_COUNTER_MAX, attr,
 					  nft_counter_policy, NULL);
 	if (err < 0)
-		return ERR_PTR(err);
+		return ERR_PTR_PCPU(err);
 
 	if (!tb[NFTA_COUNTER_BYTES] || !tb[NFTA_COUNTER_PACKETS])
-		return ERR_PTR(-EINVAL);
+		return ERR_PTR_PCPU(-EINVAL);
 
 	newstats = netdev_alloc_pcpu_stats(struct nft_stats);
 	if (newstats == NULL)
-		return ERR_PTR(-ENOMEM);
+		return ERR_PTR_PCPU(-ENOMEM);
 
 	/* Restore old counters on this cpu, no problem. Per-cpu statistics
 	 * are not exposed to userspace.
@@ -2533,10 +2535,10 @@ static int nf_tables_addchain(struct nft_ctx *ctx, u8 family, u8 genmask,
 
 		if (nla[NFTA_CHAIN_COUNTERS]) {
 			stats = nft_stats_alloc(nla[NFTA_CHAIN_COUNTERS]);
-			if (IS_ERR(stats)) {
+			if (IS_ERR_PCPU(stats)) {
 				nft_chain_release_hook(&hook);
 				kfree(basechain);
-				return PTR_ERR(stats);
+				return PTR_ERR_PCPU(stats);
 			}
 			rcu_assign_pointer(basechain->stats, stats);
 		}
@@ -2650,7 +2652,7 @@ static int nf_tables_updchain(struct nft_ctx *ctx, u8 genmask, u8 policy,
 	struct nft_table *table = ctx->table;
 	struct nft_chain *chain = ctx->chain;
 	struct nft_chain_hook hook = {};
-	struct nft_stats *stats = NULL;
+	struct nft_stats __percpu *stats = NULL;
 	struct nft_hook *h, *next;
 	struct nf_hook_ops *ops;
 	struct nft_trans *trans;
@@ -2746,8 +2748,8 @@ static int nf_tables_updchain(struct nft_ctx *ctx, u8 genmask, u8 policy,
 		}
 
 		stats = nft_stats_alloc(nla[NFTA_CHAIN_COUNTERS]);
-		if (IS_ERR(stats)) {
-			err = PTR_ERR(stats);
+		if (IS_ERR_PCPU(stats)) {
+			err = PTR_ERR_PCPU(stats);
 			goto err_hooks;
 		}
 	}
@@ -3294,25 +3296,37 @@ int nft_expr_inner_parse(const struct nft_ctx *ctx, const struct nlattr *nla,
 	if (!tb[NFTA_EXPR_DATA] || !tb[NFTA_EXPR_NAME])
 		return -EINVAL;
 
+	rcu_read_lock();
+
 	type = __nft_expr_type_get(ctx->family, tb[NFTA_EXPR_NAME]);
-	if (!type)
-		return -ENOENT;
+	if (!type) {
+		err = -ENOENT;
+		goto out_unlock;
+	}
 
-	if (!type->inner_ops)
-		return -EOPNOTSUPP;
+	if (!type->inner_ops) {
+		err = -EOPNOTSUPP;
+		goto out_unlock;
+	}
 
 	err = nla_parse_nested_deprecated(info->tb, type->maxattr,
 					  tb[NFTA_EXPR_DATA],
 					  type->policy, NULL);
 	if (err < 0)
-		goto err_nla_parse;
+		goto out_unlock;
 
 	info->attr = nla;
 	info->ops = type->inner_ops;
 
+	/* No module reference will be taken on type->owner.
+	 * Presence of type->inner_ops implies that the expression
+	 * is builtin, so it cannot go away.
+	 */
+	rcu_read_unlock();
 	return 0;
 
-err_nla_parse:
+out_unlock:
+	rcu_read_unlock();
 	return err;
 }
 
@@ -3411,13 +3425,15 @@ void nft_expr_destroy(const struct nft_ctx *ctx, struct nft_expr *expr)
  * Rules
  */
 
-static struct nft_rule *__nft_rule_lookup(const struct nft_chain *chain,
+static struct nft_rule *__nft_rule_lookup(const struct net *net,
+					  const struct nft_chain *chain,
 					  u64 handle)
 {
 	struct nft_rule *rule;
 
 	// FIXME: this sucks
-	list_for_each_entry_rcu(rule, &chain->rules, list) {
+	list_for_each_entry_rcu(rule, &chain->rules, list,
+				lockdep_commit_lock_is_held(net)) {
 		if (handle == rule->handle)
 			return rule;
 	}
@@ -3425,13 +3441,14 @@ static struct nft_rule *__nft_rule_lookup(const struct nft_chain *chain,
 	return ERR_PTR(-ENOENT);
 }
 
-static struct nft_rule *nft_rule_lookup(const struct nft_chain *chain,
+static struct nft_rule *nft_rule_lookup(const struct net *net,
+					const struct nft_chain *chain,
 					const struct nlattr *nla)
 {
 	if (nla == NULL)
 		return ERR_PTR(-EINVAL);
 
-	return __nft_rule_lookup(chain, be64_to_cpu(nla_get_be64(nla)));
+	return __nft_rule_lookup(net, chain, be64_to_cpu(nla_get_be64(nla)));
 }
 
 static const struct nla_policy nft_rule_policy[NFTA_RULE_MAX + 1] = {
@@ -3732,7 +3749,7 @@ static int nf_tables_dump_rules_done(struct netlink_callback *cb)
 	return 0;
 }
 
-/* called with rcu_read_lock held */
+/* Caller must hold rcu read lock or transaction mutex */
 static struct sk_buff *
 nf_tables_getrule_single(u32 portid, const struct nfnl_info *info,
 			 const struct nlattr * const nla[], bool reset)
@@ -3759,7 +3776,7 @@ nf_tables_getrule_single(u32 portid, const struct nfnl_info *info,
 		return ERR_CAST(chain);
 	}
 
-	rule = nft_rule_lookup(chain, nla[NFTA_RULE_HANDLE]);
+	rule = nft_rule_lookup(net, chain, nla[NFTA_RULE_HANDLE]);
 	if (IS_ERR(rule)) {
 		NL_SET_BAD_ATTR(extack, nla[NFTA_RULE_HANDLE]);
 		return ERR_CAST(rule);
@@ -3983,7 +4000,8 @@ int nft_set_catchall_validate(const struct nft_ctx *ctx, struct nft_set *set)
 	struct nft_set_ext *ext;
 	int ret = 0;
 
-	list_for_each_entry_rcu(catchall, &set->catchall_list, list) {
+	list_for_each_entry_rcu(catchall, &set->catchall_list, list,
+				lockdep_commit_lock_is_held(ctx->net)) {
 		ext = nft_set_elem_ext(set, catchall->elem);
 		if (!nft_set_elem_active(ext, dummy_iter.genmask))
 			continue;
@@ -4057,7 +4075,7 @@ static int nf_tables_newrule(struct sk_buff *skb, const struct nfnl_info *info,
 
 	if (nla[NFTA_RULE_HANDLE]) {
 		handle = be64_to_cpu(nla_get_be64(nla[NFTA_RULE_HANDLE]));
-		rule = __nft_rule_lookup(chain, handle);
+		rule = __nft_rule_lookup(net, chain, handle);
 		if (IS_ERR(rule)) {
 			NL_SET_BAD_ATTR(extack, nla[NFTA_RULE_HANDLE]);
 			return PTR_ERR(rule);
@@ -4079,7 +4097,7 @@ static int nf_tables_newrule(struct sk_buff *skb, const struct nfnl_info *info,
 
 		if (nla[NFTA_RULE_POSITION]) {
 			pos_handle = be64_to_cpu(nla_get_be64(nla[NFTA_RULE_POSITION]));
-			old_rule = __nft_rule_lookup(chain, pos_handle);
+			old_rule = __nft_rule_lookup(net, chain, pos_handle);
 			if (IS_ERR(old_rule)) {
 				NL_SET_BAD_ATTR(extack, nla[NFTA_RULE_POSITION]);
 				return PTR_ERR(old_rule);
@@ -4296,7 +4314,7 @@ static int nf_tables_delrule(struct sk_buff *skb, const struct nfnl_info *info,
 
 	if (chain) {
 		if (nla[NFTA_RULE_HANDLE]) {
-			rule = nft_rule_lookup(chain, nla[NFTA_RULE_HANDLE]);
+			rule = nft_rule_lookup(info->net, chain, nla[NFTA_RULE_HANDLE]);
 			if (IS_ERR(rule)) {
 				if (PTR_ERR(rule) == -ENOENT &&
 				    NFNL_MSG_TYPE(info->nlh->nlmsg_type) == NFT_MSG_DESTROYRULE)
@@ -4456,7 +4474,8 @@ static const struct nla_policy nft_set_desc_policy[NFTA_SET_DESC_MAX + 1] = {
 	[NFTA_SET_DESC_CONCAT]		= NLA_POLICY_NESTED_ARRAY(nft_concat_policy),
 };
 
-static struct nft_set *nft_set_lookup(const struct nft_table *table,
+static struct nft_set *nft_set_lookup(const struct net *net,
+				      const struct nft_table *table,
 				      const struct nlattr *nla, u8 genmask)
 {
 	struct nft_set *set;
@@ -4464,7 +4483,8 @@ static struct nft_set *nft_set_lookup(const struct nft_table *table,
 	if (nla == NULL)
 		return ERR_PTR(-EINVAL);
 
-	list_for_each_entry_rcu(set, &table->sets, list) {
+	list_for_each_entry_rcu(set, &table->sets, list,
+				lockdep_commit_lock_is_held(net)) {
 		if (!nla_strcmp(nla, set->name) &&
 		    nft_active_genmask(set, genmask))
 			return set;
@@ -4514,7 +4534,7 @@ struct nft_set *nft_set_lookup_global(const struct net *net,
 {
 	struct nft_set *set;
 
-	set = nft_set_lookup(table, nla_set_name, genmask);
+	set = nft_set_lookup(net, table, nla_set_name, genmask);
 	if (IS_ERR(set)) {
 		if (!nla_set_id)
 			return set;
@@ -4890,7 +4910,7 @@ static int nf_tables_getset(struct sk_buff *skb, const struct nfnl_info *info,
 	if (!nla[NFTA_SET_TABLE])
 		return -EINVAL;
 
-	set = nft_set_lookup(table, nla[NFTA_SET_NAME], genmask);
+	set = nft_set_lookup(net, table, nla[NFTA_SET_NAME], genmask);
 	if (IS_ERR(set)) {
 		NL_SET_BAD_ATTR(extack, nla[NFTA_SET_NAME]);
 		return PTR_ERR(set);
@@ -5226,7 +5246,7 @@ static int nf_tables_newset(struct sk_buff *skb, const struct nfnl_info *info,
 
 	nft_ctx_init(&ctx, net, skb, info->nlh, family, table, NULL, nla);
 
-	set = nft_set_lookup(table, nla[NFTA_SET_NAME], genmask);
+	set = nft_set_lookup(net, table, nla[NFTA_SET_NAME], genmask);
 	if (IS_ERR(set)) {
 		if (PTR_ERR(set) != -ENOENT) {
 			NL_SET_BAD_ATTR(extack, nla[NFTA_SET_NAME]);
@@ -5428,7 +5448,7 @@ static int nf_tables_delset(struct sk_buff *skb, const struct nfnl_info *info,
 		set = nft_set_lookup_byhandle(table, attr, genmask);
 	} else {
 		attr = nla[NFTA_SET_NAME];
-		set = nft_set_lookup(table, attr, genmask);
+		set = nft_set_lookup(net, table, attr, genmask);
 	}
 
 	if (IS_ERR(set)) {
@@ -5492,7 +5512,8 @@ static int nft_set_catchall_bind_check(const struct nft_ctx *ctx,
 	struct nft_set_ext *ext;
 	int ret = 0;
 
-	list_for_each_entry_rcu(catchall, &set->catchall_list, list) {
+	list_for_each_entry_rcu(catchall, &set->catchall_list, list,
+				lockdep_commit_lock_is_held(ctx->net)) {
 		ext = nft_set_elem_ext(set, catchall->elem);
 		if (!nft_set_elem_active(ext, genmask))
 			continue;
@@ -6258,7 +6279,7 @@ static int nft_set_dump_ctx_init(struct nft_set_dump_ctx *dump_ctx,
 		return PTR_ERR(table);
 	}
 
-	set = nft_set_lookup(table, nla[NFTA_SET_ELEM_LIST_SET], genmask);
+	set = nft_set_lookup(net, table, nla[NFTA_SET_ELEM_LIST_SET], genmask);
 	if (IS_ERR(set)) {
 		NL_SET_BAD_ATTR(extack, nla[NFTA_SET_ELEM_LIST_SET]);
 		return PTR_ERR(set);
@@ -6409,7 +6430,7 @@ err:
 	nfnetlink_set_err(net, portid, NFNLGRP_NFTABLES, -ENOBUFS);
 }
 
-static struct nft_trans *nft_trans_elem_alloc(struct nft_ctx *ctx,
+static struct nft_trans *nft_trans_elem_alloc(const struct nft_ctx *ctx,
 					      int msg_type,
 					      struct nft_set *set)
 {
@@ -7471,13 +7492,11 @@ static int __nft_set_catchall_flush(const struct nft_ctx *ctx,
 {
 	struct nft_trans *trans;
 
-	trans = nft_trans_alloc_gfp(ctx, NFT_MSG_DELSETELEM,
-				    sizeof(struct nft_trans_elem), GFP_KERNEL);
+	trans = nft_trans_elem_alloc(ctx, NFT_MSG_DELSETELEM, set);
 	if (!trans)
 		return -ENOMEM;
 
 	nft_setelem_data_deactivate(ctx->net, set, elem_priv);
-	nft_trans_elem_set(trans) = set;
 	nft_trans_elem_priv(trans) = elem_priv;
 	nft_trans_commit_list_add_tail(ctx->net, trans);
 
@@ -7492,7 +7511,8 @@ static int nft_set_catchall_flush(const struct nft_ctx *ctx,
 	struct nft_set_ext *ext;
 	int ret = 0;
 
-	list_for_each_entry_rcu(catchall, &set->catchall_list, list) {
+	list_for_each_entry_rcu(catchall, &set->catchall_list, list,
+				lockdep_commit_lock_is_held(ctx->net)) {
 		ext = nft_set_elem_ext(set, catchall->elem);
 		if (!nft_set_elem_active(ext, genmask))
 			continue;
@@ -7542,7 +7562,7 @@ static int nf_tables_delsetelem(struct sk_buff *skb,
 		return PTR_ERR(table);
 	}
 
-	set = nft_set_lookup(table, nla[NFTA_SET_ELEM_LIST_SET], genmask);
+	set = nft_set_lookup(net, table, nla[NFTA_SET_ELEM_LIST_SET], genmask);
 	if (IS_ERR(set)) {
 		NL_SET_BAD_ATTR(extack, nla[NFTA_SET_ELEM_LIST_SET]);
 		return PTR_ERR(set);
@@ -7789,9 +7809,7 @@ static int nf_tables_updobj(const struct nft_ctx *ctx,
 	struct nft_trans *trans;
 	int err = -ENOMEM;
 
-	if (!try_module_get(type->owner))
-		return -ENOENT;
-
+	/* caller must have obtained type->owner reference. */
 	trans = nft_trans_alloc(ctx, NFT_MSG_NEWOBJ,
 				sizeof(struct nft_trans_obj));
 	if (!trans)
@@ -7859,15 +7877,16 @@ static int nf_tables_newobj(struct sk_buff *skb, const struct nfnl_info *info,
 		if (info->nlh->nlmsg_flags & NLM_F_REPLACE)
 			return -EOPNOTSUPP;
 
-		type = __nft_obj_type_get(objtype, family);
-		if (WARN_ON_ONCE(!type))
-			return -ENOENT;
-
 		if (!obj->ops->update)
 			return 0;
 
+		type = nft_obj_type_get(net, objtype, family);
+		if (WARN_ON_ONCE(IS_ERR(type)))
+			return PTR_ERR(type);
+
 		nft_ctx_init(&ctx, net, skb, info->nlh, family, table, NULL, nla);
 
+		/* type->owner reference is put when transaction object is released. */
 		return nf_tables_updobj(&ctx, type, nla[NFTA_OBJ_DATA], obj);
 	}
 
@@ -8103,7 +8122,7 @@ static int nf_tables_dump_obj_done(struct netlink_callback *cb)
 	return 0;
 }
 
-/* called with rcu_read_lock held */
+/* Caller must hold rcu read lock or transaction mutex */
 static struct sk_buff *
 nf_tables_getobj_single(u32 portid, const struct nfnl_info *info,
 			const struct nlattr * const nla[], bool reset)
@@ -8372,12 +8391,14 @@ static const struct nla_policy nft_flowtable_policy[NFTA_FLOWTABLE_MAX + 1] = {
 	[NFTA_FLOWTABLE_FLAGS]		= { .type = NLA_U32 },
 };
 
-struct nft_flowtable *nft_flowtable_lookup(const struct nft_table *table,
+struct nft_flowtable *nft_flowtable_lookup(const struct net *net,
+					   const struct nft_table *table,
 					   const struct nlattr *nla, u8 genmask)
 {
 	struct nft_flowtable *flowtable;
 
-	list_for_each_entry_rcu(flowtable, &table->flowtables, list) {
+	list_for_each_entry_rcu(flowtable, &table->flowtables, list,
+				lockdep_commit_lock_is_held(net)) {
 		if (!nla_strcmp(nla, flowtable->name) &&
 		    nft_active_genmask(flowtable, genmask))
 			return flowtable;
@@ -8733,7 +8754,7 @@ static int nf_tables_newflowtable(struct sk_buff *skb,
 		return PTR_ERR(table);
 	}
 
-	flowtable = nft_flowtable_lookup(table, nla[NFTA_FLOWTABLE_NAME],
+	flowtable = nft_flowtable_lookup(net, table, nla[NFTA_FLOWTABLE_NAME],
 					 genmask);
 	if (IS_ERR(flowtable)) {
 		err = PTR_ERR(flowtable);
@@ -8927,7 +8948,7 @@ static int nf_tables_delflowtable(struct sk_buff *skb,
 		flowtable = nft_flowtable_lookup_byhandle(table, attr, genmask);
 	} else {
 		attr = nla[NFTA_FLOWTABLE_NAME];
-		flowtable = nft_flowtable_lookup(table, attr, genmask);
+		flowtable = nft_flowtable_lookup(net, table, attr, genmask);
 	}
 
 	if (IS_ERR(flowtable)) {
@@ -8997,7 +9018,8 @@ static int nf_tables_fill_flowtable_info(struct sk_buff *skb, struct net *net,
 	if (!hook_list)
 		hook_list = &flowtable->hook_list;
 
-	list_for_each_entry_rcu(hook, hook_list, list) {
+	list_for_each_entry_rcu(hook, hook_list, list,
+				lockdep_commit_lock_is_held(net)) {
 		if (nla_put_string(skb, NFTA_DEVICE_NAME, hook->ops.dev->name))
 			goto nla_put_failure;
 	}
@@ -9139,7 +9161,7 @@ static int nf_tables_getflowtable(struct sk_buff *skb,
 		return PTR_ERR(table);
 	}
 
-	flowtable = nft_flowtable_lookup(table, nla[NFTA_FLOWTABLE_NAME],
+	flowtable = nft_flowtable_lookup(net, table, nla[NFTA_FLOWTABLE_NAME],
 					 genmask);
 	if (IS_ERR(flowtable)) {
 		NL_SET_BAD_ATTR(extack, nla[NFTA_FLOWTABLE_NAME]);
diff --git a/net/netfilter/nft_flow_offload.c b/net/netfilter/nft_flow_offload.c
index 2f732fae5a83..65199c23c75c 100644
--- a/net/netfilter/nft_flow_offload.c
+++ b/net/netfilter/nft_flow_offload.c
@@ -409,8 +409,8 @@ static int nft_flow_offload_init(const struct nft_ctx *ctx,
 	if (!tb[NFTA_FLOW_TABLE_NAME])
 		return -EINVAL;
 
-	flowtable = nft_flowtable_lookup(ctx->table, tb[NFTA_FLOW_TABLE_NAME],
-					 genmask);
+	flowtable = nft_flowtable_lookup(ctx->net, ctx->table,
+					 tb[NFTA_FLOW_TABLE_NAME], genmask);
 	if (IS_ERR(flowtable))
 		return PTR_ERR(flowtable);
 
diff --git a/net/netfilter/nft_set_bitmap.c b/net/netfilter/nft_set_bitmap.c
index 1caa04619dc6..12390d2e994f 100644
--- a/net/netfilter/nft_set_bitmap.c
+++ b/net/netfilter/nft_set_bitmap.c
@@ -88,13 +88,15 @@ bool nft_bitmap_lookup(const struct net *net, const struct nft_set *set,
 }
 
 static struct nft_bitmap_elem *
-nft_bitmap_elem_find(const struct nft_set *set, struct nft_bitmap_elem *this,
+nft_bitmap_elem_find(const struct net *net,
+		     const struct nft_set *set, struct nft_bitmap_elem *this,
 		     u8 genmask)
 {
 	const struct nft_bitmap *priv = nft_set_priv(set);
 	struct nft_bitmap_elem *be;
 
-	list_for_each_entry_rcu(be, &priv->list, head) {
+	list_for_each_entry_rcu(be, &priv->list, head,
+				lockdep_is_held(&nft_pernet(net)->commit_mutex)) {
 		if (memcmp(nft_set_ext_key(&be->ext),
 			   nft_set_ext_key(&this->ext), set->klen) ||
 		    !nft_set_elem_active(&be->ext, genmask))
@@ -132,7 +134,7 @@ static int nft_bitmap_insert(const struct net *net, const struct nft_set *set,
 	u8 genmask = nft_genmask_next(net);
 	u32 idx, off;
 
-	be = nft_bitmap_elem_find(set, new, genmask);
+	be = nft_bitmap_elem_find(net, set, new, genmask);
 	if (be) {
 		*elem_priv = &be->priv;
 		return -EEXIST;
@@ -201,7 +203,7 @@ nft_bitmap_deactivate(const struct net *net, const struct nft_set *set,
 
 	nft_bitmap_location(set, elem->key.val.data, &idx, &off);
 
-	be = nft_bitmap_elem_find(set, this, genmask);
+	be = nft_bitmap_elem_find(net, set, this, genmask);
 	if (!be)
 		return NULL;
 
diff --git a/net/netfilter/nft_set_hash.c b/net/netfilter/nft_set_hash.c
index daa56dda737a..65bd291318f2 100644
--- a/net/netfilter/nft_set_hash.c
+++ b/net/netfilter/nft_set_hash.c
@@ -647,7 +647,8 @@ static void nft_hash_walk(const struct nft_ctx *ctx, struct nft_set *set,
 	int i;
 
 	for (i = 0; i < priv->buckets; i++) {
-		hlist_for_each_entry_rcu(he, &priv->table[i], node) {
+		hlist_for_each_entry_rcu(he, &priv->table[i], node,
+					 lockdep_is_held(&nft_pernet(ctx->net)->commit_mutex)) {
 			if (iter->count < iter->skip)
 				goto cont;