3.16.7-ckt22 -stable review patch. If anyone has any objections, please let me
know.
------------------
From: WANG Cong <xiyou.wangc...@gmail.com>
commit 09ccfd238e5a0e670d8178cf50180ea81ae09ae1 upstream.
Reported-by: Dmitry Vyukov <dvyu...@gmail.com>
Signed-off-by: Cong Wang <xiyou.wangc...@gmail.com>
Signed-off-by: David S. Miller <da...@davemloft.net>
Signed-off-by: Luis Henriques <luis.henriq...@canonical.com>
---
drivers/net/ppp/pptp.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/net/ppp/pptp.c b/drivers/net/ppp/pptp.c
index 1dc628ffce2b..0710214df2bf 100644
--- a/drivers/net/ppp/pptp.c
+++ b/drivers/net/ppp/pptp.c
@@ -420,6 +420,9 @@ 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;
@@ -441,6 +444,9 @@ 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;
--
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