diff options
Diffstat (limited to 'net/bridge/br_netfilter.c')
| -rw-r--r-- | net/bridge/br_netfilter.c | 23 |
1 files changed, 13 insertions, 10 deletions
diff --git a/net/bridge/br_netfilter.c b/net/bridge/br_netfilter.c index d8e36b775125..223f8270daee 100644 --- a/net/bridge/br_netfilter.c +++ b/net/bridge/br_netfilter.c @@ -26,6 +26,7 @@ #include <linux/ip.h> #include <linux/netdevice.h> #include <linux/skbuff.h> +#include <linux/if_arp.h> #include <linux/if_ether.h> #include <linux/if_vlan.h> #include <linux/netfilter_bridge.h> @@ -33,8 +34,11 @@ #include <linux/netfilter_ipv6.h> #include <linux/netfilter_arp.h> #include <linux/in_route.h> + #include <net/ip.h> #include <net/ipv6.h> +#include <net/route.h> + #include <asm/uaccess.h> #include <asm/checksum.h> #include "br_private.h" @@ -295,7 +299,7 @@ static int check_hbh_len(struct sk_buff *skb) len -= 2; while (len > 0) { - int optlen = raw[off+1]+2; + int optlen = skb->nh.raw[off+1]+2; switch (skb->nh.raw[off]) { case IPV6_TLV_PAD0: @@ -308,18 +312,15 @@ static int check_hbh_len(struct sk_buff *skb) case IPV6_TLV_JUMBO: if (skb->nh.raw[off+1] != 4 || (off&3) != 2) goto bad; - pkt_len = ntohl(*(u32*)(skb->nh.raw+off+2)); - + if (pkt_len <= IPV6_MAXPLEN || + skb->nh.ipv6h->payload_len) + goto bad; if (pkt_len > skb->len - sizeof(struct ipv6hdr)) goto bad; - if (pkt_len + sizeof(struct ipv6hdr) < skb->len) { - if (__pskb_trim(skb, - pkt_len + sizeof(struct ipv6hdr))) - goto bad; - if (skb->ip_summed == CHECKSUM_HW) - skb->ip_summed = CHECKSUM_NONE; - } + if (pskb_trim_rcsum(skb, + pkt_len+sizeof(struct ipv6hdr))) + goto bad; break; default: if (optlen > len) @@ -372,6 +373,7 @@ static unsigned int br_nf_pre_routing_ipv6(unsigned int hook, if (hdr->nexthdr == NEXTHDR_HOP && check_hbh_len(skb)) goto inhdr_error; + nf_bridge_put(skb->nf_bridge); if ((nf_bridge = nf_bridge_alloc(skb)) == NULL) return NF_DROP; setup_pre_routing(skb); @@ -455,6 +457,7 @@ static unsigned int br_nf_pre_routing(unsigned int hook, struct sk_buff **pskb, skb->ip_summed = CHECKSUM_NONE; } + nf_bridge_put(skb->nf_bridge); if ((nf_bridge = nf_bridge_alloc(skb)) == NULL) return NF_DROP; setup_pre_routing(skb); |