3 files changed, 19 insertions, 6 deletions

diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c
index b9c2de84a8a2..0f0f94a40335 100644
--- a/net/ipv6/datagram.c
+++ b/net/ipv6/datagram.c
@@ -705,6 +705,11 @@ int datagram_send_ctl(struct net *net,
                         }
 
                         *hlimit = *(int *)CMSG_DATA(cmsg);
+                        if (*hlimit < -1 || *hlimit > 0xff) {
+                                err = -EINVAL;
+                                goto exit_f;
+                        }
+
                         break;
 
                 case IPV6_TCLASS:
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index 26b83e512a09..c042ce19bd14 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -67,7 +67,7 @@ int ip6_ra_control(struct sock *sk, int sel, void (*destructor)(struct sock *))
 
         /* RA packet may be delivered ONLY to IPPROTO_RAW socket */
         if (sk->sk_type != SOCK_RAW || inet_sk(sk)->num != IPPROTO_RAW)
-                return -EINVAL;
+                return -ENOPROTOOPT;
 
         new_ra = (sel>=0) ? kmalloc(sizeof(*new_ra), GFP_KERNEL) : NULL;
 
@@ -446,7 +446,7 @@ done:
 
         case IPV6_MULTICAST_HOPS:
                 if (sk->sk_type == SOCK_STREAM)
-                        goto e_inval;
+                        break;
                 if (optlen < sizeof(int))
                         goto e_inval;
                 if (val > 255 || val < -1)
@@ -458,13 +458,15 @@ done:
         case IPV6_MULTICAST_LOOP:
                 if (optlen < sizeof(int))
                         goto e_inval;
+                if (val != valbool)
+                        goto e_inval;
                 np->mc_loop = valbool;
                 retv = 0;
                 break;
 
         case IPV6_MULTICAST_IF:
                 if (sk->sk_type == SOCK_STREAM)
-                        goto e_inval;
+                        break;
                 if (optlen < sizeof(int))
                         goto e_inval;
 
@@ -860,7 +862,7 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
                 if (sk->sk_protocol != IPPROTO_UDP &&
                     sk->sk_protocol != IPPROTO_UDPLITE &&
                     sk->sk_protocol != IPPROTO_TCP)
-                        return -EINVAL;
+                        return -ENOPROTOOPT;
                 if (sk->sk_state != TCP_ESTABLISHED)
                         return -ENOTCONN;
                 val = sk->sk_family;
@@ -874,6 +876,8 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
                         return -EINVAL;
                 if (copy_from_user(&gsf, optval, GROUP_FILTER_SIZE(0)))
                         return -EFAULT;
+                if (gsf.gf_group.ss_family != AF_INET6)
+                        return -EADDRNOTAVAIL;
                 lock_sock(sk);
                 err = ip6_mc_msfget(sk, &gsf,
                         (struct group_filter __user *)optval, optlen);
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 220cffe9e63b..d1f3e19b06c7 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -2196,8 +2196,12 @@ static int rt6_fill_node(struct sk_buff *skb, struct rt6_info *rt,
 
         NLA_PUT_U32(skb, RTA_PRIORITY, rt->rt6i_metric);
 
-        expires = (rt->rt6i_flags & RTF_EXPIRES) ?
-                        rt->rt6i_expires - jiffies : 0;
+        if (!(rt->rt6i_flags & RTF_EXPIRES))
+                expires = 0;
+        else if (rt->rt6i_expires - jiffies < INT_MAX)
+                expires = rt->rt6i_expires - jiffies;
+        else
+                expires = INT_MAX;
 
         if (rtnl_put_cacheinfo(skb, &rt->u.dst, 0, 0, 0,
                                expires, rt->u.dst.error) < 0)