diff options
Diffstat (limited to 'net/ipv6')
| -rw-r--r-- | net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c b/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c index c0f1da5497a9..a7e03cfacd06 100644 --- a/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c +++ b/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c @@ -68,8 +68,8 @@ static int icmpv6_invert_tuple(struct nf_conntrack_tuple *tuple, [ICMPV6_NI_REPLY - 128] = ICMPV6_NI_REPLY +1 }; - __u8 type = orig->dst.u.icmp.type - 128; - if (type >= sizeof(invmap) || !invmap[type]) + int type = orig->dst.u.icmp.type - 128; + if (type < 0 || type >= sizeof(invmap) || !invmap[type]) return 0; tuple->src.u.icmp.id = orig->src.u.icmp.id; @@ -129,12 +129,12 @@ static int icmpv6_new(struct nf_conn *conntrack, [ICMPV6_ECHO_REQUEST - 128] = 1, [ICMPV6_NI_QUERY - 128] = 1 }; + int type = conntrack->tuplehash[0].tuple.dst.u.icmp.type - 128; - if (conntrack->tuplehash[0].tuple.dst.u.icmp.type - 128 >= sizeof(valid_new) - || !valid_new[conntrack->tuplehash[0].tuple.dst.u.icmp.type - 128]) { + if (type < 0 || type >= sizeof(valid_new) || !valid_new[type]) { /* Can't create a new ICMPv6 `conn' with this. */ - DEBUGP("icmp: can't create new conn with type %u\n", - conntrack->tuplehash[0].tuple.dst.u.icmp.type); + DEBUGP("icmpv6: can't create new conn with type %u\n", + type + 128); NF_CT_DUMP_TUPLE(&conntrack->tuplehash[0].tuple); return 0; } |