Messages in this thread Patch in this message |  | | 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 |
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Signed-off-by: Honggang Li <honli@redhat.com> --- 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
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