Merge remote-tracking branch 'origin/master' into next

(Pickup Stephen's fix d4d7b2a11c423a8d4088bb0090e4c8d626d043bc)

1 files changed, 6 insertions, 4 deletions

diff --git a/net/socket.c b/net/socket.c
index 24a77400b65e..ffe92ca32f2a 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -1965,8 +1965,9 @@ static int __sys_sendmsg(struct socket *sock, struct msghdr __user *msg,
          * used_address->name_len is initialized to UINT_MAX so that the first
          * destination address never matches.
          */
-        if (used_address && used_address->name_len == msg_sys->msg_namelen &&
-            !memcmp(&used_address->name, msg->msg_name,
+        if (used_address && msg_sys->msg_name &&
+            used_address->name_len == msg_sys->msg_namelen &&
+            !memcmp(&used_address->name, msg_sys->msg_name,
                     used_address->name_len)) {
                 err = sock_sendmsg_nosec(sock, msg_sys, total_len);
                 goto out_freectl;
@@ -1978,8 +1979,9 @@ static int __sys_sendmsg(struct socket *sock, struct msghdr __user *msg,
          */
         if (used_address && err >= 0) {
                 used_address->name_len = msg_sys->msg_namelen;
-                memcpy(&used_address->name, msg->msg_name,
-                       used_address->name_len);
+                if (msg_sys->msg_name)
+                        memcpy(&used_address->name, msg_sys->msg_name,
+                               used_address->name_len);
         }
 
 out_freectl: