3.2.45-rc1 review patch. If anyone has any objections, please let me know. ------------------ From: Mathias Krause <minipli@xxxxxxxxxxxxxx> [ Upstream commit a5598bd9c087dc0efc250a5221e5d0e6f584ee88 ] The current code does not fill the msg_name member in case it is set. It also does not set the msg_namelen member to 0 and therefore makes net/socket.c leak the local, uninitialized sockaddr_storage variable to userland -- 128 bytes of kernel stack memory. Fix that by simply setting msg_namelen to 0 as obviously nobody cared about iucv_sock_recvmsg() not filling the msg_name in case it was set. Cc: Ursula Braun <ursula.braun@xxxxxxxxxx> Signed-off-by: Mathias Krause <minipli@xxxxxxxxxxxxxx> Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx> Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx> --- net/iucv/af_iucv.c | 2 ++ 1 file changed, 2 insertions(+) --- a/net/iucv/af_iucv.c +++ b/net/iucv/af_iucv.c @@ -1356,6 +1356,8 @@ static int iucv_sock_recvmsg(struct kioc int blen; int err = 0; + msg->msg_namelen = 0; + if ((sk->sk_state == IUCV_DISCONN || sk->sk_state == IUCV_SEVERED) && skb_queue_empty(&iucv->backlog_skb_q) && skb_queue_empty(&sk->sk_receive_queue) && -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html