diff options
| author | Pablo Neira Ayuso <pablo@netfilter.org> | 2015-01-14 15:33:57 +0100 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2015-01-19 14:52:39 +0100 |
| commit | 75e8d06d4308436055d1a78a2c02bf6328ba724d (patch) | |
| tree | 64fcef16df64c35c2f3ceca20982d3723a2637c4 /include/net | |
| parent | net: sctp: fix race for one-to-many sockets in sendmsg's auto associate (diff) | |
| download | linux-75e8d06d4308436055d1a78a2c02bf6328ba724d.tar.xz linux-75e8d06d4308436055d1a78a2c02bf6328ba724d.zip | |
netfilter: nf_tables: validate hooks in NAT expressions
The user can crash the kernel if it uses any of the existing NAT
expressions from the wrong hook, so add some code to validate this
when loading the rule.
This patch introduces nft_chain_validate_hooks() which is based on
an existing function in the bridge version of the reject expression.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/netfilter/nf_tables.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h index 3ae969e3acf0..9eaaa7884586 100644 --- a/include/net/netfilter/nf_tables.h +++ b/include/net/netfilter/nf_tables.h @@ -530,6 +530,8 @@ enum nft_chain_type { int nft_chain_validate_dependency(const struct nft_chain *chain, enum nft_chain_type type); +int nft_chain_validate_hooks(const struct nft_chain *chain, + unsigned int hook_flags); struct nft_stats { u64 bytes; |