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| author | Pablo Neira Ayuso <pablo@netfilter.org> | 2019-11-14 16:17:24 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-17 21:48:32 +0300 |
| commit | cf3aabf388ce7826ad1d3e8e3f4062757bbbb221 (patch) | |
| tree | b372e9a2b64ddcf912df431e1bccb9747175a4a1 /net | |
| parent | 3eb81bbf4e0b8eaf33c8315562f693128f683f02 (diff) | |
| download | linux-cf3aabf388ce7826ad1d3e8e3f4062757bbbb221.tar.xz | |
netfilter: nf_tables_offload: release flow_rule on error from commit path
commit 23403cd8898dbc9808d3eb2f63bc1db8a340b751 upstream.
If hardware offload commit path fails, release all flow_rule objects.
Fixes: c9626a2cbdb2 ("netfilter: nf_tables: add hardware offload support")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/netfilter/nf_tables_offload.c | 26 |
1 files changed, 21 insertions, 5 deletions
diff --git a/net/netfilter/nf_tables_offload.c b/net/netfilter/nf_tables_offload.c index e743f811245f..96a64e7594a5 100644 --- a/net/netfilter/nf_tables_offload.c +++ b/net/netfilter/nf_tables_offload.c @@ -358,14 +358,14 @@ int nft_flow_rule_offload_commit(struct net *net) continue; if (trans->ctx.flags & NLM_F_REPLACE || - !(trans->ctx.flags & NLM_F_APPEND)) - return -EOPNOTSUPP; - + !(trans->ctx.flags & NLM_F_APPEND)) { + err = -EOPNOTSUPP; + break; + } err = nft_flow_offload_rule(trans->ctx.chain, nft_trans_rule(trans), nft_trans_flow_rule(trans), FLOW_CLS_REPLACE); - nft_flow_rule_destroy(nft_trans_flow_rule(trans)); break; case NFT_MSG_DELRULE: if (!(trans->ctx.chain->flags & NFT_CHAIN_HW_OFFLOAD)) @@ -379,7 +379,23 @@ int nft_flow_rule_offload_commit(struct net *net) } if (err) - return err; + break; + } + + list_for_each_entry(trans, &net->nft.commit_list, list) { + if (trans->ctx.family != NFPROTO_NETDEV) + continue; + + switch (trans->msg_type) { + case NFT_MSG_NEWRULE: + if (!(trans->ctx.chain->flags & NFT_CHAIN_HW_OFFLOAD)) + continue; + + nft_flow_rule_destroy(nft_trans_flow_rule(trans)); + break; + default: + break; + } } return err; |