From mboxrd@z Thu Jan 1 00:00:00 1970 From: Honggang Li Subject: [PATCH linux-next 2/4] ipvlan: fix possible NULL pointer dereference in ipvlan_get_iflink Date: Tue, 14 Apr 2015 23:20:15 +0800 Message-ID: <1429024817-21561-3-git-send-email-honli@redhat.com> References: <1429024817-21561-1-git-send-email-honli@redhat.com> Cc: Honggang Li To: roland@kernel.org, sean.hefty@intel.com, hal.rosenstock@gmail.com, kaber@trash.net, davem@davemloft.net, alex.estrin@intel.com, dledford@redhat.com, edumazet@google.com, erezsh@mellanox.com, nicolas.dichtel@6wind.com, maheshb@google.com, jbenc@redhat.com, ebiederm@xmission.com, elfring@users.sourceforge.net, f.fainelli@gmail.com, linux@roeck-us.net, andrew@lunn.ch, sfeldma@gmail.com, alexander.h.duyck@intel.com, linux-rdma@vger.kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org Return-path: In-Reply-To: <1429024817-21561-1-git-send-email-honli@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org Signed-off-by: Honggang Li --- drivers/net/ipvlan/ipvlan_main.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/net/ipvlan/ipvlan_main.c b/drivers/net/ipvlan/ipvlan_main.c index 77b92a0..479fcf7 100644 --- a/drivers/net/ipvlan/ipvlan_main.c +++ b/drivers/net/ipvlan/ipvlan_main.c @@ -308,7 +308,10 @@ static int ipvlan_get_iflink(const struct net_device *dev) { struct ipvl_dev *ipvlan = netdev_priv(dev); - return ipvlan->phy_dev->ifindex; + if (ipvlan && pvlan->phy_dev) + return ipvlan->phy_dev->ifindex; + else + return 0; } static const struct net_device_ops ipvlan_netdev_ops = { -- 1.8.3.1