netfilter: nfnetlink_log: fix wrong skbuff size calculation

This problem was introduced in 72961ecf84d67d6359a1b30f9b2a8427f13e1e71
since no space was reserved for the new attributes NFULA_HWTYPE,
NFULA_HWLEN and NFULA_HWHEADER.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>

diff --git a/net/netfilter/nfnetlink_log.c b/net/netfilter/nfnetlink_log.c
index fd326ac..66a6dd5 100644 (file)
--- a/net/netfilter/nfnetlink_log.c
+++ b/net/netfilter/nfnetlink_log.c
@@ -581,6 +581,12 @@ nfulnl_log_packet(u_int8_t pf,
                + nla_total_size(sizeof(struct nfulnl_msg_packet_hw))
                + nla_total_size(sizeof(struct nfulnl_msg_packet_timestamp));
 
+       if (in && skb_mac_header_was_set(skb)) {
+               size +=   nla_total_size(skb->dev->hard_header_len)
+                       + nla_total_size(sizeof(u_int16_t))     /* hwtype */
+                       + nla_total_size(sizeof(u_int16_t));    /* hwlen */
+       }
+
        spin_lock_bh(&inst->lock);
 
        if (inst->flags & NFULNL_CFG_F_SEQ)