1 files changed, 28 insertions, 16 deletions

diff --git a/net/socket.c b/net/socket.c
index 2270b941bcc7..ee3cd280c76e 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;
@@ -377,7 +377,7 @@ static int sock_alloc_file(struct socket *sock, struct file **f, int flags)
 		  &socket_file_ops);
 	if (unlikely(!file)) {
 		/* drop dentry, keep inode */
-		atomic_inc(&path.dentry->d_inode->i_count);
+		ihold(path.dentry->d_inode);
 		path_put(&path);
 		put_unused_fd(fd);
 		return -ENFILE;
@@ -480,6 +480,7 @@ static struct socket *sock_alloc(void)
 	sock = SOCKET_I(inode);
 
 	kmemcheck_annotate_bitfield(sock, type);
+	inode->i_ino = get_next_ino();
 	inode->i_mode = S_IFSOCK | S_IRWXUGO;
 	inode->i_uid = current_fsuid();
 	inode->i_gid = current_fsgid();
@@ -502,6 +503,7 @@ 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 +537,13 @@ 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 +663,8 @@ 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,
@@ -1144,7 +1146,7 @@ call_kill:
 }
 EXPORT_SYMBOL(sock_wake_async);
 
-static int __sock_create(struct net *net, int family, int type, int protocol,
+int __sock_create(struct net *net, int family, int type, int protocol,
 			 struct socket **res, int kern)
 {
 	int err;
@@ -1256,6 +1258,7 @@ out_release:
 	rcu_read_unlock();
 	goto out_sock_release;
 }
+EXPORT_SYMBOL(__sock_create);
 
 int sock_create(int family, int type, int protocol, struct socket **res)
 {
@@ -1919,7 +1922,8 @@ 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 +3058,19 @@ 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 +3080,16 @@ 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;