diff options
| author | Pablo Neira Ayuso <pablo@netfilter.org> | 2022-08-08 19:30:07 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-08-31 17:16:42 +0200 |
| commit | 7196f4577f1c34e4eb1e2dbc6e3a436b3bdb7aeb (patch) | |
| tree | c56dac8e819695c18c5bd4efdc6097a152e5967c /include | |
| parent | 4097749aec5444825579152e0eece5d87bb377b0 (diff) | |
netfilter: nf_tables: disallow jump to implicit chain from set element
[ Upstream commit f323ef3a0d49e147365284bc1f02212e617b7f09 ]
Extend struct nft_data_desc to add a flag field that specifies
nft_data_init() is being called for set element data.
Use it to disallow jump to implicit chain from set element, only jump
to chain via immediate expression is allowed.
Fixes: d0e2c7de92c7 ("netfilter: nf_tables: add NFT_CHAIN_BINDING")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/netfilter/nf_tables.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h index 6a38bf8538f1..53746494eb84 100644 --- a/include/net/netfilter/nf_tables.h +++ b/include/net/netfilter/nf_tables.h @@ -193,10 +193,15 @@ struct nft_ctx { bool report; }; +enum nft_data_desc_flags { + NFT_DATA_DESC_SETELEM = (1 << 0), +}; + struct nft_data_desc { enum nft_data_types type; unsigned int size; unsigned int len; + unsigned int flags; }; int nft_data_init(const struct nft_ctx *ctx, struct nft_data *data, |