Merge tag 'arc-fixes-for-4.4-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git...

[firefly-linux-kernel-4.4.55.git] / drivers / net / ppp / pptp.c

diff --git a/drivers/net/ppp/pptp.c b/drivers/net/ppp/pptp.c
index fc69e41d09506e96b38f067fa05175bd680fa36b..597c53e0a2ecce6a7fecaaf5032006f31795b307 100644 (file)
--- a/drivers/net/ppp/pptp.c
+++ b/drivers/net/ppp/pptp.c
@@ -419,6 +419,9 @@ static int pptp_bind(struct socket *sock, struct sockaddr *uservaddr,
        struct pptp_opt *opt = &po->proto.pptp;
        int error = 0;
 
+       if (sockaddr_len < sizeof(struct sockaddr_pppox))
+               return -EINVAL;
+
        lock_sock(sk);
 
        opt->src_addr = sp->sa_addr.pptp;
@@ -440,6 +443,9 @@ static int pptp_connect(struct socket *sock, struct sockaddr *uservaddr,
        struct flowi4 fl4;
        int error = 0;
 
+       if (sockaddr_len < sizeof(struct sockaddr_pppox))
+               return -EINVAL;
+
        if (sp->sa_protocol != PX_PROTO_PPTP)
                return -EINVAL;