diff options
Diffstat (limited to 'kernel/net/netfilter/ipset/ip_set_hash_ipmark.c')
| -rw-r--r-- | kernel/net/netfilter/ipset/ip_set_hash_ipmark.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/kernel/net/netfilter/ipset/ip_set_hash_ipmark.c b/kernel/net/netfilter/ipset/ip_set_hash_ipmark.c index 1757bf8..ad2a2dc 100644 --- a/kernel/net/netfilter/ipset/ip_set_hash_ipmark.c +++ b/kernel/net/netfilter/ipset/ip_set_hash_ipmark.c @@ -99,11 +99,11 @@ static int hash_ipmark4_uadt(struct ip_set *set, struct nlattr *tb[], enum ipset_adt adt, u32 *lineno, u32 flags, bool retried) { - const struct hash_ipmark4 *h = set->data; + struct hash_ipmark4 *h = set->data; ipset_adtfn adtfn = set->variant->adt[adt]; struct hash_ipmark4_elem e = { }; struct ip_set_ext ext = IP_SET_INIT_UEXT(set); - u32 ip, ip_to = 0; + u32 ip, ip_to = 0, i = 0; int ret; if (tb[IPSET_ATTR_LINENO]) @@ -123,6 +123,8 @@ hash_ipmark4_uadt(struct ip_set *set, struct nlattr *tb[], e.mark = ntohl(nla_get_be32(tb[IPSET_ATTR_MARK])); e.mark &= h->markmask; + if (e.mark == 0 && e.ip == 0) + return -IPSET_ERR_HASH_ELEM; if (adt == IPSET_TEST || !(tb[IPSET_ATTR_IP_TO] || tb[IPSET_ATTR_CIDR])) { @@ -135,8 +137,11 @@ hash_ipmark4_uadt(struct ip_set *set, struct nlattr *tb[], ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP_TO], &ip_to); if (ret) return ret; - if (ip > ip_to) + if (ip > ip_to) { + if (e.mark == 0 && ip_to == 0) + return -IPSET_ERR_HASH_ELEM; swap(ip, ip_to); + } } else if (tb[IPSET_ATTR_CIDR]) { u8 cidr = nla_get_u8(tb[IPSET_ATTR_CIDR]); @@ -147,8 +152,12 @@ hash_ipmark4_uadt(struct ip_set *set, struct nlattr *tb[], if (retried) ip = ntohl(h->next.ip); - for (; ip <= ip_to; ip++) { + for (; ip <= ip_to; ip++, i++) { e.ip = htonl(ip); + if (i > IPSET_MAX_RANGE) { + hash_ipmark4_data_next(&h->next, &e); + return -ERANGE; + } ret = adtfn(set, &e, &ext, &ext, flags); if (ret && !ip_set_eexist(ret, flags)) |