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-rw-r--r--kernel/include/linux/netfilter/ipset/ip_set_ahash.h16
-rw-r--r--kernel/net/netfilter/ipset/ip_set_hash_ip.c10
-rw-r--r--kernel/net/netfilter/ipset/ip_set_hash_ipport.c10
-rw-r--r--kernel/net/netfilter/ipset/ip_set_hash_ipportip.c10
-rw-r--r--kernel/net/netfilter/ipset/ip_set_hash_ipportnet.c10
-rw-r--r--kernel/net/netfilter/ipset/ip_set_hash_net.c10
-rw-r--r--kernel/net/netfilter/ipset/ip_set_hash_netiface.c10
-rw-r--r--kernel/net/netfilter/ipset/ip_set_hash_netport.c10
8 files changed, 65 insertions, 21 deletions
diff --git a/kernel/include/linux/netfilter/ipset/ip_set_ahash.h b/kernel/include/linux/netfilter/ipset/ip_set_ahash.h
index 05a5d72..230a290 100644
--- a/kernel/include/linux/netfilter/ipset/ip_set_ahash.h
+++ b/kernel/include/linux/netfilter/ipset/ip_set_ahash.h
@@ -99,6 +99,22 @@ struct ip_set_hash {
#endif
};
+static size_t
+htable_size(u8 hbits)
+{
+ size_t hsize;
+
+ /* We must fit both into u32 in jhash and size_t */
+ if (hbits > 31)
+ return 0;
+ hsize = jhash_size(hbits);
+ if ((((size_t)-1) - sizeof(struct htable))/sizeof(struct hbucket)
+ < hsize)
+ return 0;
+
+ return hsize * sizeof(struct hbucket) + sizeof(struct htable);
+}
+
/* Compute htable_bits from the user input parameter hashsize */
static u8
htable_bits(u32 hashsize)
diff --git a/kernel/net/netfilter/ipset/ip_set_hash_ip.c b/kernel/net/netfilter/ipset/ip_set_hash_ip.c
index 3d99299..4a39044 100644
--- a/kernel/net/netfilter/ipset/ip_set_hash_ip.c
+++ b/kernel/net/netfilter/ipset/ip_set_hash_ip.c
@@ -364,6 +364,7 @@ hash_ip_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
{
u32 hashsize = IPSET_DEFAULT_HASHSIZE, maxelem = IPSET_DEFAULT_MAXELEM;
u8 netmask, hbits;
+ size_t hsize;
struct ip_set_hash *h;
if (!(set->family == NFPROTO_IPV4 || set->family == NFPROTO_IPV6))
@@ -405,9 +406,12 @@ hash_ip_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
h->timeout = IPSET_NO_TIMEOUT;
hbits = htable_bits(hashsize);
- h->table = ip_set_alloc(
- sizeof(struct htable)
- + jhash_size(hbits) * sizeof(struct hbucket));
+ hsize = htable_size(hbits);
+ if (hsize == 0) {
+ kfree(h);
+ return -ENOMEM;
+ }
+ h->table = ip_set_alloc(hsize);
if (!h->table) {
kfree(h);
return -ENOMEM;
diff --git a/kernel/net/netfilter/ipset/ip_set_hash_ipport.c b/kernel/net/netfilter/ipset/ip_set_hash_ipport.c
index 106f494..5ebc93f 100644
--- a/kernel/net/netfilter/ipset/ip_set_hash_ipport.c
+++ b/kernel/net/netfilter/ipset/ip_set_hash_ipport.c
@@ -450,6 +450,7 @@ hash_ipport_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
struct ip_set_hash *h;
u32 hashsize = IPSET_DEFAULT_HASHSIZE, maxelem = IPSET_DEFAULT_MAXELEM;
u8 hbits;
+ size_t hsize;
if (!(set->family == NFPROTO_IPV4 || set->family == NFPROTO_IPV6))
return -IPSET_ERR_INVALID_FAMILY;
@@ -477,9 +478,12 @@ hash_ipport_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
h->timeout = IPSET_NO_TIMEOUT;
hbits = htable_bits(hashsize);
- h->table = ip_set_alloc(
- sizeof(struct htable)
- + jhash_size(hbits) * sizeof(struct hbucket));
+ hsize = htable_size(hbits);
+ if (hsize == 0) {
+ kfree(h);
+ return -ENOMEM;
+ }
+ h->table = ip_set_alloc(hsize);
if (!h->table) {
kfree(h);
return -ENOMEM;
diff --git a/kernel/net/netfilter/ipset/ip_set_hash_ipportip.c b/kernel/net/netfilter/ipset/ip_set_hash_ipportip.c
index c8e4453..e9587a3 100644
--- a/kernel/net/netfilter/ipset/ip_set_hash_ipportip.c
+++ b/kernel/net/netfilter/ipset/ip_set_hash_ipportip.c
@@ -468,6 +468,7 @@ hash_ipportip_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
struct ip_set_hash *h;
u32 hashsize = IPSET_DEFAULT_HASHSIZE, maxelem = IPSET_DEFAULT_MAXELEM;
u8 hbits;
+ size_t hsize;
if (!(set->family == NFPROTO_IPV4 || set->family == NFPROTO_IPV6))
return -IPSET_ERR_INVALID_FAMILY;
@@ -495,9 +496,12 @@ hash_ipportip_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
h->timeout = IPSET_NO_TIMEOUT;
hbits = htable_bits(hashsize);
- h->table = ip_set_alloc(
- sizeof(struct htable)
- + jhash_size(hbits) * sizeof(struct hbucket));
+ hsize = htable_size(hbits);
+ if (hsize == 0) {
+ kfree(h);
+ return -ENOMEM;
+ }
+ h->table = ip_set_alloc(hsize);
if (!h->table) {
kfree(h);
return -ENOMEM;
diff --git a/kernel/net/netfilter/ipset/ip_set_hash_ipportnet.c b/kernel/net/netfilter/ipset/ip_set_hash_ipportnet.c
index 782c992..0ce88ff 100644
--- a/kernel/net/netfilter/ipset/ip_set_hash_ipportnet.c
+++ b/kernel/net/netfilter/ipset/ip_set_hash_ipportnet.c
@@ -619,6 +619,7 @@ hash_ipportnet_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
struct ip_set_hash *h;
u32 hashsize = IPSET_DEFAULT_HASHSIZE, maxelem = IPSET_DEFAULT_MAXELEM;
u8 hbits;
+ size_t hsize;
if (!(set->family == NFPROTO_IPV4 || set->family == NFPROTO_IPV6))
return -IPSET_ERR_INVALID_FAMILY;
@@ -648,9 +649,12 @@ hash_ipportnet_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
h->timeout = IPSET_NO_TIMEOUT;
hbits = htable_bits(hashsize);
- h->table = ip_set_alloc(
- sizeof(struct htable)
- + jhash_size(hbits) * sizeof(struct hbucket));
+ hsize = htable_size(hbits);
+ if (hsize == 0) {
+ kfree(h);
+ return -ENOMEM;
+ }
+ h->table = ip_set_alloc(hsize);
if (!h->table) {
kfree(h);
return -ENOMEM;
diff --git a/kernel/net/netfilter/ipset/ip_set_hash_net.c b/kernel/net/netfilter/ipset/ip_set_hash_net.c
index 9f61063..1122e7a 100644
--- a/kernel/net/netfilter/ipset/ip_set_hash_net.c
+++ b/kernel/net/netfilter/ipset/ip_set_hash_net.c
@@ -460,6 +460,7 @@ hash_net_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
u32 hashsize = IPSET_DEFAULT_HASHSIZE, maxelem = IPSET_DEFAULT_MAXELEM;
struct ip_set_hash *h;
u8 hbits;
+ size_t hsize;
if (!(set->family == NFPROTO_IPV4 || set->family == NFPROTO_IPV6))
return -IPSET_ERR_INVALID_FAMILY;
@@ -489,9 +490,12 @@ hash_net_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
h->timeout = IPSET_NO_TIMEOUT;
hbits = htable_bits(hashsize);
- h->table = ip_set_alloc(
- sizeof(struct htable)
- + jhash_size(hbits) * sizeof(struct hbucket));
+ hsize = htable_size(hbits);
+ if (hsize == 0) {
+ kfree(h);
+ return -ENOMEM;
+ }
+ h->table = ip_set_alloc(hsize);
if (!h->table) {
kfree(h);
return -ENOMEM;
diff --git a/kernel/net/netfilter/ipset/ip_set_hash_netiface.c b/kernel/net/netfilter/ipset/ip_set_hash_netiface.c
index f51f919..726ddc7 100644
--- a/kernel/net/netfilter/ipset/ip_set_hash_netiface.c
+++ b/kernel/net/netfilter/ipset/ip_set_hash_netiface.c
@@ -722,6 +722,7 @@ hash_netiface_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
struct ip_set_hash *h;
u32 hashsize = IPSET_DEFAULT_HASHSIZE, maxelem = IPSET_DEFAULT_MAXELEM;
u8 hbits;
+ size_t hsize;
if (!(set->family == NFPROTO_IPV4 || set->family == NFPROTO_IPV6))
return -IPSET_ERR_INVALID_FAMILY;
@@ -752,9 +753,12 @@ hash_netiface_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
h->ahash_max = AHASH_MAX_SIZE;
hbits = htable_bits(hashsize);
- h->table = ip_set_alloc(
- sizeof(struct htable)
- + jhash_size(hbits) * sizeof(struct hbucket));
+ hsize = htable_size(hbits);
+ if (hsize == 0) {
+ kfree(h);
+ return -ENOMEM;
+ }
+ h->table = ip_set_alloc(hsize);
if (!h->table) {
kfree(h);
return -ENOMEM;
diff --git a/kernel/net/netfilter/ipset/ip_set_hash_netport.c b/kernel/net/netfilter/ipset/ip_set_hash_netport.c
index d7df21c..901fcae 100644
--- a/kernel/net/netfilter/ipset/ip_set_hash_netport.c
+++ b/kernel/net/netfilter/ipset/ip_set_hash_netport.c
@@ -573,6 +573,7 @@ hash_netport_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
struct ip_set_hash *h;
u32 hashsize = IPSET_DEFAULT_HASHSIZE, maxelem = IPSET_DEFAULT_MAXELEM;
u8 hbits;
+ size_t hsize;
if (!(set->family == NFPROTO_IPV4 || set->family == NFPROTO_IPV6))
return -IPSET_ERR_INVALID_FAMILY;
@@ -602,9 +603,12 @@ hash_netport_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
h->timeout = IPSET_NO_TIMEOUT;
hbits = htable_bits(hashsize);
- h->table = ip_set_alloc(
- sizeof(struct htable)
- + jhash_size(hbits) * sizeof(struct hbucket));
+ hsize = htable_size(hbits);
+ if (hsize == 0) {
+ kfree(h);
+ return -ENOMEM;
+ }
+ h->table = ip_set_alloc(hsize);
if (!h->table) {
kfree(h);
return -ENOMEM;