[SCTP] Fix SCTP_SETADAPTION sockopt to use the correct structure.

Signed-off-by: Ivan Skytte Jorgensen <isj-sctp@i1.dk>
Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>

1 files changed, 9 insertions, 11 deletions

diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 170045b6ee98..c66c161908c0 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -2384,14 +2384,14 @@ static int sctp_setsockopt_peer_primary_addr(struct sock *sk, char __user *optva
 static int sctp_setsockopt_adaption_layer(struct sock *sk, char __user *optval,
                                           int optlen)
 {
-        __u32 val;
+        struct sctp_setadaption adaption;
 
-        if (optlen < sizeof(__u32))
+        if (optlen != sizeof(struct sctp_setadaption))
                 return -EINVAL;
-        if (copy_from_user(&val, optval, sizeof(__u32)))
+        if (copy_from_user(&adaption, optval, optlen)) 
                 return -EFAULT;
 
-        sctp_sk(sk)->adaption_ind = val;
+        sctp_sk(sk)->adaption_ind = adaption.ssb_adaption_ind;
 
         return 0;
 }
@@ -3672,17 +3672,15 @@ static int sctp_getsockopt_primary_addr(struct sock *sk, int len,
 static int sctp_getsockopt_adaption_layer(struct sock *sk, int len,
                                   char __user *optval, int __user *optlen)
 {
-        __u32 val;
+        struct sctp_setadaption adaption;
 
-        if (len < sizeof(__u32))
+        if (len != sizeof(struct sctp_setadaption))
                 return -EINVAL;
 
-        len = sizeof(__u32);
-        val = sctp_sk(sk)->adaption_ind;
-        if (put_user(len, optlen))
-                return -EFAULT;
-        if (copy_to_user(optval, &val, len))
+        adaption.ssb_adaption_ind = sctp_sk(sk)->adaption_ind;
+        if (copy_to_user(optval, &adaption, len))
                 return -EFAULT;
+
         return 0;
 }