diff options
| author | Pablo Neira Ayuso <pablo@netfilter.org> | 2024-03-21 01:28:07 +0100 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2024-03-28 03:54:01 +0100 |
| commit | 216e7bf7402caf73f4939a8e0248392e96d7c0da (patch) | |
| tree | ce12ad6466db9ca379133495d9c8f97c1b7ccbc0 | |
| parent | 1e1fb6f00f52812277963365d9bd835b9b0ea4e0 (diff) | |
| download | linux-216e7bf7402caf73f4939a8e0248392e96d7c0da.tar.gz | |
netfilter: nf_tables: skip netdev hook unregistration if table is dormant
Skip hook unregistration when adding or deleting devices from an
existing netdev basechain. Otherwise, commit/abort path try to
unregister hooks which not enabled.
Fixes: b9703ed44ffb ("netfilter: nf_tables: support for adding new devices to an existing netdev chain")
Fixes: 7d937b107108 ("netfilter: nf_tables: support for deleting devices in an existing netdev chain")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
| -rw-r--r-- | net/netfilter/nf_tables_api.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c index 086d85fffeb152..fd86f2720c9e77 100644 --- a/net/netfilter/nf_tables_api.c +++ b/net/netfilter/nf_tables_api.c @@ -10212,9 +10212,11 @@ static int nf_tables_commit(struct net *net, struct sk_buff *skb) if (nft_trans_chain_update(trans)) { nf_tables_chain_notify(&trans->ctx, NFT_MSG_DELCHAIN, &nft_trans_chain_hooks(trans)); - nft_netdev_unregister_hooks(net, - &nft_trans_chain_hooks(trans), - true); + if (!(trans->ctx.table->flags & NFT_TABLE_F_DORMANT)) { + nft_netdev_unregister_hooks(net, + &nft_trans_chain_hooks(trans), + true); + } } else { nft_chain_del(trans->ctx.chain); nf_tables_chain_notify(&trans->ctx, NFT_MSG_DELCHAIN, @@ -10490,9 +10492,11 @@ static int __nf_tables_abort(struct net *net, enum nfnl_abort_action action) break; case NFT_MSG_NEWCHAIN: if (nft_trans_chain_update(trans)) { - nft_netdev_unregister_hooks(net, - &nft_trans_chain_hooks(trans), - true); + if (!(trans->ctx.table->flags & NFT_TABLE_F_DORMANT)) { + nft_netdev_unregister_hooks(net, + &nft_trans_chain_hooks(trans), + true); + } free_percpu(nft_trans_chain_stats(trans)); kfree(nft_trans_chain_name(trans)); nft_trans_destroy(trans); |