diff options
Diffstat (limited to 'net/netfilter/ipvs/ip_vs_sh.c')
| -rw-r--r-- | net/netfilter/ipvs/ip_vs_sh.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/net/netfilter/ipvs/ip_vs_sh.c b/net/netfilter/ipvs/ip_vs_sh.c index f16c027df15b..3588faebe529 100644 --- a/net/netfilter/ipvs/ip_vs_sh.c +++ b/net/netfilter/ipvs/ip_vs_sh.c @@ -269,14 +269,20 @@ ip_vs_sh_get_port(const struct sk_buff *skb, struct ip_vs_iphdr *iph) switch (iph->protocol) { case IPPROTO_TCP: th = skb_header_pointer(skb, iph->len, sizeof(_tcph), &_tcph); + if (unlikely(th == NULL)) + return 0; port = th->source; break; case IPPROTO_UDP: uh = skb_header_pointer(skb, iph->len, sizeof(_udph), &_udph); + if (unlikely(uh == NULL)) + return 0; port = uh->source; break; case IPPROTO_SCTP: sh = skb_header_pointer(skb, iph->len, sizeof(_sctph), &_sctph); + if (unlikely(sh == NULL)) + return 0; port = sh->source; break; default: |