diff options
author | Pablo Neira Ayuso <pablo@netfilter.org> | 2024-03-21 03:28:07 +0300 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-04-10 17:35:44 +0300 |
commit | cf893953633db14a749aa6677bed20529cfb13ac (patch) | |
tree | 747bd19fa1e158c33a2c377ea64a65dd55a0ad73 /net/netfilter | |
parent | 2d0d1abe119af2595a760ccc404cdb4e8c846de9 (diff) | |
download | linux-cf893953633db14a749aa6677bed20529cfb13ac.tar.xz |
netfilter: nf_tables: skip netdev hook unregistration if table is dormant
[ Upstream commit 216e7bf7402caf73f4939a8e0248392e96d7c0da ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'net/netfilter')
-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 6e4e22a10a82..b2ef7e37f11c 100644 --- a/net/netfilter/nf_tables_api.c +++ b/net/netfilter/nf_tables_api.c @@ -10083,9 +10083,11 @@ 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, @@ -10357,9 +10359,11 @@ 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); |