pptp: fix stack info leak in pptp_getname()

[karo-tx-linux.git] / drivers / net / ppp / pptp.c

diff --git a/drivers/net/ppp/pptp.c b/drivers/net/ppp/pptp.c
index 1aff970be33ec88ec8ff6781467155f68cf5b3b4..1dc628ffce2b52a565354f060dca84467d67e4b9 100644 (file)
--- a/drivers/net/ppp/pptp.c
+++ b/drivers/net/ppp/pptp.c
@@ -506,7 +506,9 @@ static int pptp_getname(struct socket *sock, struct sockaddr *uaddr,
        int len = sizeof(struct sockaddr_pppox);
        struct sockaddr_pppox sp;
 
-       sp.sa_family      = AF_PPPOX;
+       memset(&sp.sa_addr, 0, sizeof(sp.sa_addr));
+
+       sp.sa_family    = AF_PPPOX;
        sp.sa_protocol  = PX_PROTO_PPTP;
        sp.sa_addr.pptp = pppox_sk(sock->sk)->proto.pptp.src_addr;