1 files changed, 24 insertions, 14 deletions

diff --git a/net/socket.c b/net/socket.c
index 2270b941bcc7..abf3e2561521 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -209,8 +209,8 @@ int move_addr_to_kernel(void __user *uaddr, int ulen, struct sockaddr *kaddr)
  *      specified. Zero is returned for a success.
  */
 
-int move_addr_to_user(struct sockaddr *kaddr, int klen, void __user *uaddr,
-                      int __user *ulen)
+static int move_addr_to_user(struct sockaddr *kaddr, int klen,
+                             void __user *uaddr, int __user *ulen)
 {
         int err;
         int len;
@@ -502,6 +502,7 @@ static int sock_no_open(struct inode *irrelevant, struct file *dontcare)
 const struct file_operations bad_sock_fops = {
         .owner = THIS_MODULE,
         .open = sock_no_open,
+        .llseek = noop_llseek,
 };
 
 /**
@@ -535,14 +536,13 @@ void sock_release(struct socket *sock)
 }
 EXPORT_SYMBOL(sock_release);
 
-int sock_tx_timestamp(struct msghdr *msg, struct sock *sk,
-                      union skb_shared_tx *shtx)
+int sock_tx_timestamp(struct sock *sk, __u8 *tx_flags)
 {
-        shtx->flags = 0;
+        *tx_flags = 0;
         if (sock_flag(sk, SOCK_TIMESTAMPING_TX_HARDWARE))
-                shtx->hardware = 1;
+                *tx_flags |= SKBTX_HW_TSTAMP;
         if (sock_flag(sk, SOCK_TIMESTAMPING_TX_SOFTWARE))
-                shtx->software = 1;
+                *tx_flags |= SKBTX_SW_TSTAMP;
         return 0;
 }
 EXPORT_SYMBOL(sock_tx_timestamp);
@@ -662,7 +662,8 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
 }
 EXPORT_SYMBOL_GPL(__sock_recv_timestamp);
 
-inline void sock_recv_drops(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
+static inline void sock_recv_drops(struct msghdr *msg, struct sock *sk,
+                                   struct sk_buff *skb)
 {
         if (sock_flag(sk, SOCK_RXQ_OVFL) && skb && skb->dropcount)
                 put_cmsg(msg, SOL_SOCKET, SO_RXQ_OVFL,
@@ -1919,7 +1920,8 @@ SYSCALL_DEFINE3(sendmsg, int, fd, struct msghdr __user *, msg, unsigned, flags)
                  * Afterwards, it will be a kernel pointer. Thus the compiler-assisted
                  * checking falls down on this.
                  */
-                if (copy_from_user(ctl_buf, (void __user *)msg_sys.msg_control,
+                if (copy_from_user(ctl_buf,
+                                   (void __user __force *)msg_sys.msg_control,
                                    ctl_len))
                         goto out_freectl;
                 msg_sys.msg_control = ctl_buf;
@@ -3054,14 +3056,19 @@ int kernel_getsockopt(struct socket *sock, int level, int optname,
                         char *optval, int *optlen)
 {
         mm_segment_t oldfs = get_fs();
+        char __user *uoptval;
+        int __user *uoptlen;
         int err;
 
+        uoptval = (char __user __force *) optval;
+        uoptlen = (int __user __force *) optlen;
+
         set_fs(KERNEL_DS);
         if (level == SOL_SOCKET)
-                err = sock_getsockopt(sock, level, optname, optval, optlen);
+                err = sock_getsockopt(sock, level, optname, uoptval, uoptlen);
         else
-                err = sock->ops->getsockopt(sock, level, optname, optval,
-                                            optlen);
+                err = sock->ops->getsockopt(sock, level, optname, uoptval,
+                                            uoptlen);
         set_fs(oldfs);
         return err;
 }
@@ -3071,13 +3078,16 @@ int kernel_setsockopt(struct socket *sock, int level, int optname,
                         char *optval, unsigned int optlen)
 {
         mm_segment_t oldfs = get_fs();
+        char __user *uoptval;
         int err;
 
+        uoptval = (char __user __force *) optval;
+
         set_fs(KERNEL_DS);
         if (level == SOL_SOCKET)
-                err = sock_setsockopt(sock, level, optname, optval, optlen);
+                err = sock_setsockopt(sock, level, optname, uoptval, optlen);
         else
-                err = sock->ops->setsockopt(sock, level, optname, optval,
+                err = sock->ops->setsockopt(sock, level, optname, uoptval,
                                             optlen);
         set_fs(oldfs);
         return err;