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| author |   Felix Fietkau <nbd@nbd.name> | 2018-02-07 09:49:02 +0100 |
|---|---|---|
| committer |   Pablo Neira Ayuso <pablo@netfilter.org> | 2018-02-07 11:55:52 +0100 |
| commit | 0ff90b6c20340e57616a51ae1a1bf18156d6638a (patch) | |
| tree | ea8f92d7b66248c515234e119819aa620ef77a33 /include | |
| parent | netfilter: remove useless prototype (diff) | |
| download | linux-dev-0ff90b6c20340e57616a51ae1a1bf18156d6638a.tar.xz linux-dev-0ff90b6c20340e57616a51ae1a1bf18156d6638a.zip | |
netfilter: nf_flow_offload: fix use-after-free and a resource leak
flow_offload_del frees the flow, so all associated resource must be
freed before.
Since the ct entry in struct flow_offload_entry was allocated by
flow_offload_alloc, it should be freed by flow_offload_free to take care
of the error handling path when flow_offload_add fails.
While at it, make flow_offload_del static, since it should never be
called directly, only from the gc step
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/netfilter/nf_flow_table.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/include/net/netfilter/nf_flow_table.h b/include/net/netfilter/nf_flow_table.h index 020ae903066f..833752dd0c58 100644 --- a/include/net/netfilter/nf_flow_table.h +++ b/include/net/netfilter/nf_flow_table.h @@ -90,7 +90,6 @@ struct flow_offload *flow_offload_alloc(struct nf_conn *ct, void flow_offload_free(struct flow_offload *flow); int flow_offload_add(struct nf_flowtable *flow_table, struct flow_offload *flow); -void flow_offload_del(struct nf_flowtable *flow_table, struct flow_offload *flow); struct flow_offload_tuple_rhash *flow_offload_lookup(struct nf_flowtable *flow_table, struct flow_offload_tuple *tuple); int nf_flow_table_iterate(struct nf_flowtable *flow_table, |