7 files changed, 61 insertions, 24 deletions

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index d328d5986143..1db50487916b 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -3321,9 +3321,7 @@ static void __ipv6_ifa_notify(int event, struct inet6_ifaddr *ifp)
 
         switch (event) {
         case RTM_NEWADDR:
-                dst_hold(&ifp->rt->u.dst);
-                if (ip6_ins_rt(ifp->rt, NULL, NULL, NULL))
-                        dst_release(&ifp->rt->u.dst);
+                ip6_ins_rt(ifp->rt, NULL, NULL, NULL);
                 if (ifp->idev->cnf.forwarding)
                         addrconf_join_anycast(ifp);
                 break;
@@ -3334,8 +3332,6 @@ static void __ipv6_ifa_notify(int event, struct inet6_ifaddr *ifp)
                 dst_hold(&ifp->rt->u.dst);
                 if (ip6_del_rt(ifp->rt, NULL, NULL, NULL))
                         dst_free(&ifp->rt->u.dst);
-                else
-                        dst_release(&ifp->rt->u.dst);
                 break;
         }
 }
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index 064ffab82a9f..6c9711ac1c03 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -369,12 +369,6 @@ int inet6_destroy_sock(struct sock *sk)
         struct sk_buff *skb;
         struct ipv6_txoptions *opt;
 
-        /*
-         *      Release destination entry
-         */
-
-        sk_dst_reset(sk);
-
         /* Release rx options */
 
         if ((skb = xchg(&np->pktoptions, NULL)) != NULL)
diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index 6c05c7978bef..4420948a1bfe 100644
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -1252,8 +1252,7 @@ int igmp6_event_query(struct sk_buff *skb)
                 }
         } else {
                 for (ma = idev->mc_list; ma; ma=ma->next) {
-                        if (group_type != IPV6_ADDR_ANY &&
-                            !ipv6_addr_equal(group, &ma->mca_addr))
+                        if (!ipv6_addr_equal(group, &ma->mca_addr))
                                 continue;
                         spin_lock_bh(&ma->mca_lock);
                         if (ma->mca_flags & MAF_TIMER_RUNNING) {
@@ -1268,11 +1267,10 @@ int igmp6_event_query(struct sk_buff *skb)
                                         ma->mca_flags &= ~MAF_GSQUERY;
                         }
                         if (!(ma->mca_flags & MAF_GSQUERY) ||
-                           mld_marksources(ma, ntohs(mlh2->nsrcs), mlh2->srcs))
+                            mld_marksources(ma, ntohs(mlh2->nsrcs), mlh2->srcs))
                                 igmp6_group_queried(ma, max_delay);
                         spin_unlock_bh(&ma->mca_lock);
-                        if (group_type != IPV6_ADDR_ANY)
-                                break;
+                        break;
                 }
         }
         read_unlock_bh(&idev->lock);
@@ -1351,7 +1349,7 @@ static int is_in(struct ifmcaddr6 *pmc, struct ip6_sf_list *psf, int type,
                          * in all filters
                          */
                         if (psf->sf_count[MCAST_INCLUDE])
-                                return 0;
+                                return type == MLD2_MODE_IS_INCLUDE;
                         return pmc->mca_sfcount[MCAST_EXCLUDE] ==
                                 psf->sf_count[MCAST_EXCLUDE];
                 }
@@ -1966,7 +1964,7 @@ static void sf_markstate(struct ifmcaddr6 *pmc)
 
 static int sf_setstate(struct ifmcaddr6 *pmc)
 {
-        struct ip6_sf_list *psf;
+        struct ip6_sf_list *psf, *dpsf;
         int mca_xcount = pmc->mca_sfcount[MCAST_EXCLUDE];
         int qrv = pmc->idev->mc_qrv;
         int new_in, rv;
@@ -1978,8 +1976,48 @@ static int sf_setstate(struct ifmcaddr6 *pmc)
                                 !psf->sf_count[MCAST_INCLUDE];
                 } else
                         new_in = psf->sf_count[MCAST_INCLUDE] != 0;
-                if (new_in != psf->sf_oldin) {
-                        psf->sf_crcount = qrv;
+                if (new_in) {
+                        if (!psf->sf_oldin) {
+                                struct ip6_sf_list *prev = 0;
+
+                                for (dpsf=pmc->mca_tomb; dpsf;
+                                     dpsf=dpsf->sf_next) {
+                                        if (ipv6_addr_equal(&dpsf->sf_addr,
+                                            &psf->sf_addr))
+                                                break;
+                                        prev = dpsf;
+                                }
+                                if (dpsf) {
+                                        if (prev)
+                                                prev->sf_next = dpsf->sf_next;
+                                        else
+                                                pmc->mca_tomb = dpsf->sf_next;
+                                        kfree(dpsf);
+                                }
+                                psf->sf_crcount = qrv;
+                                rv++;
+                        }
+                } else if (psf->sf_oldin) {
+                        psf->sf_crcount = 0;
+                        /*
+                         * add or update "delete" records if an active filter
+                         * is now inactive
+                         */
+                        for (dpsf=pmc->mca_tomb; dpsf; dpsf=dpsf->sf_next)
+                                if (ipv6_addr_equal(&dpsf->sf_addr,
+                                    &psf->sf_addr))
+                                        break;
+                        if (!dpsf) {
+                                dpsf = (struct ip6_sf_list *)
+                                        kmalloc(sizeof(*dpsf), GFP_ATOMIC);
+                                if (!dpsf)
+                                        continue;
+                                *dpsf = *psf;
+                                /* pmc->mca_lock held by callers */
+                                dpsf->sf_next = pmc->mca_tomb;
+                                pmc->mca_tomb = dpsf;
+                        }
+                        dpsf->sf_crcount = qrv;
                         rv++;
                 }
         }
diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c
index 847068fd3367..74ff56c322f4 100644
--- a/net/ipv6/netfilter/ip6_tables.c
+++ b/net/ipv6/netfilter/ip6_tables.c
@@ -978,6 +978,13 @@ do_replace(void __user *user, unsigned int len)
         if (copy_from_user(&tmp, user, sizeof(tmp)) != 0)
                 return -EFAULT;
 
+        /* overflow check */
+        if (tmp.size >= (INT_MAX - sizeof(struct xt_table_info)) / NR_CPUS -
+                        SMP_CACHE_BYTES)
+                return -ENOMEM;
+        if (tmp.num_counters >= INT_MAX / sizeof(struct xt_counters))
+                return -ENOMEM;
+
         newinfo = xt_alloc_table_info(tmp.size);
         if (!newinfo)
                 return -ENOMEM;
diff --git a/net/ipv6/netfilter/ip6t_policy.c b/net/ipv6/netfilter/ip6t_policy.c
index afe1cc4c18a5..3d39ec924041 100644
--- a/net/ipv6/netfilter/ip6t_policy.c
+++ b/net/ipv6/netfilter/ip6t_policy.c
@@ -26,8 +26,9 @@ MODULE_LICENSE("GPL");
 static inline int
 match_xfrm_state(struct xfrm_state *x, const struct ip6t_policy_elem *e)
 {
-#define MATCH_ADDR(x,y,z)       (!e->match.x || \
-                                 ((ip6_masked_addrcmp((z), &e->x, &e->y)) == 0) ^ e->invert.x)
+#define MATCH_ADDR(x,y,z)       (!e->match.x ||                                \
+                                 ((!ip6_masked_addrcmp(&e->x.a6, &e->y.a6, z)) \
+                                  ^ e->invert.x))
 #define MATCH(x,y)              (!e->match.x || ((e->x == (y)) ^ e->invert.x))
         
         return MATCH_ADDR(saddr, smask, (struct in6_addr *)&x->props.saddr.a6) &&
@@ -91,7 +92,7 @@ match_policy_out(const struct sk_buff *skb, const struct ip6t_policy_info *info)
                         return 0;
         }
 
-        return strict ? 1 : 0;
+        return strict ? i == info->len : 0;
 }
 
 static int match(const struct sk_buff *skb,
diff --git a/net/ipv6/proc.c b/net/ipv6/proc.c
index 50a13e75d70e..4238b1ed8860 100644
--- a/net/ipv6/proc.c
+++ b/net/ipv6/proc.c
@@ -38,7 +38,7 @@ static int fold_prot_inuse(struct proto *proto)
         int res = 0;
         int cpu;
 
-        for (cpu=0; cpu<NR_CPUS; cpu++)
+        for_each_cpu(cpu)
                 res += proto->stats[cpu].inuse;
 
         return res;
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 66d04004afda..ca9cf6853755 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -515,6 +515,7 @@ static int tcp_v6_send_synack(struct sock *sk, struct request_sock *req,
 done:
         if (opt && opt != np->opt)
                 sock_kfree_s(sk, opt, opt->tot_len);
+        dst_release(dst);
         return err;
 }