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| author | Pablo Neira Ayuso <pablo@netfilter.org> | 2022-08-08 20:30:07 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-08-31 18:15:18 +0300 |
| commit | 6301a73bd83d94b9b3eab8581adb04e40fb5f079 (patch) | |
| tree | 0a89cea91a8588c6bae1638bae267549203a867c /include/net | |
| parent | 98827687593b579f20feb60c7ce3ac8a6fbb5f2e (diff) | |
| download | linux-6301a73bd83d94b9b3eab8581adb04e40fb5f079.tar.xz | |
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/net')
| -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 6c062b2509b9..e66fee99ed3e 100644 --- a/include/net/netfilter/nf_tables.h +++ b/include/net/netfilter/nf_tables.h @@ -176,10 +176,15 @@ 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, |