diff options
| author | Pablo Neira Ayuso <pablo@netfilter.org> | 2016-09-09 12:42:49 +0200 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2016-09-12 18:51:57 +0200 |
| commit | beac5afa2d78605b70f40cf5ab5601ab10659c7f (patch) | |
| tree | 40a5b1783ad7fb55c9ace0b06d3d1fd4860ea130 /net/ipv4/netfilter | |
| parent | dbd2be0646e3239022630c426cbceefa15714bca (diff) | |
netfilter: nf_tables: ensure proper initialization of nft_pktinfo fields
This patch introduces nft_set_pktinfo_unspec() that ensures proper
initialization all of pktinfo fields for non-IP traffic. This is used
by the bridge, netdev and arp families.
This new function relies on nft_set_pktinfo_proto_unspec() to set a new
tprot_set field that indicates if transport protocol information is
available. Remain fields are zeroed.
The meta expression has been also updated to check to tprot_set in first
place given that zero is a valid tprot value. Even a handcrafted packet
may come with the IPPROTO_RAW (255) protocol number so we can't rely on
this value as tprot unset.
Reported-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/ipv4/netfilter')
| -rw-r--r-- | net/ipv4/netfilter/nf_tables_arp.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv4/netfilter/nf_tables_arp.c b/net/ipv4/netfilter/nf_tables_arp.c index cd84d4295a20..058c034be376 100644 --- a/net/ipv4/netfilter/nf_tables_arp.c +++ b/net/ipv4/netfilter/nf_tables_arp.c @@ -21,7 +21,7 @@ nft_do_chain_arp(void *priv, { struct nft_pktinfo pkt; - nft_set_pktinfo(&pkt, skb, state); + nft_set_pktinfo_unspec(&pkt, skb, state); return nft_do_chain(&pkt, priv); } |