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authorJozsef Kadlecsik <kadlec@blackhole.kfki.hu>2017-09-23 23:37:40 +0200
committerPablo Neira Ayuso <pablo@netfilter.org>2017-09-26 20:15:04 +0200
commit48596a8ddc46f96afb6a2cd72787cb15d6bb01fc (patch)
treeaee6458d67c8ea60bc2287880aab5cc1430d6501 /net/netfilter/ipset/ip_set_hash_netportnet.c
parent89fcbb564f4a64c439d597c2702f990eed49c8a1 (diff)
downloadlinux-48596a8ddc46f96afb6a2cd72787cb15d6bb01fc.tar.bz2
netfilter: ipset: Fix adding an IPv4 range containing more than 2^31 addresses
Wrong comparison prevented the hash types to add a range with more than 2^31 addresses but reported as a success. Fixes Netfilter's bugzilla id #1005, reported by Oleg Serditov and Oliver Ford. Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/netfilter/ipset/ip_set_hash_netportnet.c')
-rw-r--r--net/netfilter/ipset/ip_set_hash_netportnet.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/net/netfilter/ipset/ip_set_hash_netportnet.c b/net/netfilter/ipset/ip_set_hash_netportnet.c
index aff846960ac4..8602f2595a1a 100644
--- a/net/netfilter/ipset/ip_set_hash_netportnet.c
+++ b/net/netfilter/ipset/ip_set_hash_netportnet.c
@@ -291,7 +291,7 @@ hash_netportnet4_uadt(struct ip_set *set, struct nlattr *tb[],
if (retried)
ip = ntohl(h->next.ip[0]);
- while (!after(ip, ip_to)) {
+ while (ip <= ip_to) {
e.ip[0] = htonl(ip);
ip_last = ip_set_range_to_cidr(ip, ip_to, &e.cidr[0]);
p = retried && ip == ntohl(h->next.ip[0]) ? ntohs(h->next.port)
@@ -301,7 +301,7 @@ hash_netportnet4_uadt(struct ip_set *set, struct nlattr *tb[],
ip2 = (retried && ip == ntohl(h->next.ip[0]) &&
p == ntohs(h->next.port)) ? ntohl(h->next.ip[1])
: ip2_from;
- while (!after(ip2, ip2_to)) {
+ while (ip2 <= ip2_to) {
e.ip[1] = htonl(ip2);
ip2_last = ip_set_range_to_cidr(ip2, ip2_to,
&e.cidr[1]);