1 files changed, 10 insertions, 1 deletions

diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c
index ca87d6ac6a2..8d0ee0b8a6b 100644
--- a/net/bluetooth/rfcomm/sock.c
+++ b/net/bluetooth/rfcomm/sock.c
@@ -1068,13 +1068,22 @@ static ssize_t rfcomm_sock_sysfs_show(struct class *dev,
         struct sock *sk;
         struct hlist_node *node;
         char *str = buf;
+        int size = PAGE_SIZE;
 
         read_lock_bh(&rfcomm_sk_list.lock);
 
         sk_for_each(sk, node, &rfcomm_sk_list.head) {
-                str += sprintf(str, "%s %s %d %d\n",
+                int len;
+
+                len = snprintf(str, size, "%s %s %d %d\n",
                                 batostr(&bt_sk(sk)->src), batostr(&bt_sk(sk)->dst),
                                 sk->sk_state, rfcomm_pi(sk)->channel);
+
+                size -= len;
+                if (size <= 0)
+                        break;
+
+                str += len;
         }
 
         read_unlock_bh(&rfcomm_sk_list.lock);