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From: Pablo Neira Ayuso <pablo@netfilter.org>
To: netfilter-devel@vger.kernel.org
Cc: davem@davemloft.net, netdev@vger.kernel.org
Subject: [PATCH 15/17] netfilter: nf_tables_offload: return EOPNOTSUPP if rule specifies no actions
Date: Mon,  9 Dec 2019 20:26:36 +0100	[thread overview]
Message-ID: <20191209192638.71184-16-pablo@netfilter.org> (raw)
In-Reply-To: <20191209192638.71184-1-pablo@netfilter.org>

If the rule only specifies the matching side, return EOPNOTSUPP.
Otherwise, the front-end relies on the drivers to reject this rule.

Fixes: c9626a2cbdb2 ("netfilter: nf_tables: add hardware offload support")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 net/netfilter/nf_tables_offload.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/netfilter/nf_tables_offload.c b/net/netfilter/nf_tables_offload.c
index d7a35da008ef..22fb18906ccf 100644
--- a/net/netfilter/nf_tables_offload.c
+++ b/net/netfilter/nf_tables_offload.c
@@ -44,6 +44,9 @@ struct nft_flow_rule *nft_flow_rule_create(struct net *net,
 		expr = nft_expr_next(expr);
 	}
 
+	if (num_actions == 0)
+		return ERR_PTR(-EOPNOTSUPP);
+
 	flow = nft_flow_rule_alloc(num_actions);
 	if (!flow)
 		return ERR_PTR(-ENOMEM);
-- 
2.11.0


  parent reply	other threads:[~2019-12-09 19:27 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-09 19:26 [PATCH 00/17] Netfilter fixes for net Pablo Neira Ayuso
2019-12-09 19:26 ` [PATCH 01/17] netfilter: ctnetlink: netns exit must wait for callbacks Pablo Neira Ayuso
2019-12-09 19:26 ` [PATCH 02/17] netfilter: nf_flow_table_offload: Fix block setup as TC_SETUP_FT cmd Pablo Neira Ayuso
2019-12-09 19:26 ` [PATCH 03/17] netfilter: nf_flow_table_offload: Fix block_cb tc_setup_type as TC_SETUP_CLSFLOWER Pablo Neira Ayuso
2019-12-09 19:26 ` [PATCH 04/17] netfilter: nf_flow_table_offload: Don't use offset uninitialized in flow_offload_port_{d,s}nat Pablo Neira Ayuso
2019-12-09 19:26 ` [PATCH 05/17] netfilter: conntrack: tell compiler to not inline nf_ct_resolve_clash Pablo Neira Ayuso
2019-12-09 19:26 ` [PATCH 06/17] netfilter: nf_flow_table_offload: add IPv6 match description Pablo Neira Ayuso
2019-12-09 19:26 ` [PATCH 07/17] netfilter: nf_tables_offload: Check for the NETDEV_UNREGISTER event Pablo Neira Ayuso
2019-12-09 19:26 ` [PATCH 08/17] selftests: netfilter: use randomized netns names Pablo Neira Ayuso
2019-12-09 19:26 ` [PATCH 09/17] netfilter: nf_queue: enqueue skbs with NULL dst Pablo Neira Ayuso
2019-12-09 19:26 ` [PATCH 10/17] netfilter: uapi: Avoid undefined left-shift in xt_sctp.h Pablo Neira Ayuso
2019-12-09 19:26 ` [PATCH 11/17] netfilter: nft_set_rbtree: bogus lookup/get on consecutive elements in named sets Pablo Neira Ayuso
2019-12-09 19:26 ` [PATCH 12/17] netfilter: nf_tables: validate NFT_SET_ELEM_INTERVAL_END Pablo Neira Ayuso
2019-12-09 19:26 ` [PATCH 13/17] netfilter: nf_tables: validate NFT_DATA_VALUE after nft_data_init() Pablo Neira Ayuso
2019-12-09 19:26 ` [PATCH 14/17] netfilter: nf_tables: skip module reference count bump on object updates Pablo Neira Ayuso
2019-12-09 19:26 ` Pablo Neira Ayuso [this message]
2019-12-09 19:26 ` [PATCH 16/17] netfilter: bridge: make sure to pull arp header in br_nf_forward_arp() Pablo Neira Ayuso
2019-12-09 19:26 ` [PATCH 17/17] netfilter: nf_flow_table_offload: Correct memcpy size for flow_overload_mangle() Pablo Neira Ayuso
2019-12-09 22:03 ` [PATCH 00/17] Netfilter fixes for net David Miller

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