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| author | Pablo Neira Ayuso <pablo@netfilter.org> | 2019-12-07 00:49:58 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-12 14:21:18 +0300 |
| commit | 36d08a41d23f060b45d2db01bd5e72d156445b65 (patch) | |
| tree | 13156063ac37b031c4d023b5a07aa4ba4361a91b /net/netfilter | |
| parent | 7aa02b48875f274563346d5a6097aa784360d73b (diff) | |
| download | linux-36d08a41d23f060b45d2db01bd5e72d156445b65.tar.xz | |
netfilter: nf_tables_offload: return EOPNOTSUPP if rule specifies no actions
[ Upstream commit 81ec61074bcf68acfcb2820cda3ff9d9984419c7 ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'net/netfilter')
| -rw-r--r-- | net/netfilter/nf_tables_offload.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/net/netfilter/nf_tables_offload.c b/net/netfilter/nf_tables_offload.c index 6f7eab502e65..e743f811245f 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); |