diff --git a/[refs] b/[refs] index abcb07cf7b7e..df450aaea5b9 100644 --- a/[refs] +++ b/[refs] @@ -1,2 +1,2 @@ --- -refs/heads/master: d97c00a32198f0d066556006cfcd409efb28f746 +refs/heads/master: 34e02aa1fb0886d8e92ab00e3dc17d631487f92d diff --git a/trunk/drivers/net/vxlan.c b/trunk/drivers/net/vxlan.c index 763061d97921..607976c00162 100644 --- a/trunk/drivers/net/vxlan.c +++ b/trunk/drivers/net/vxlan.c @@ -1090,14 +1090,18 @@ static int vxlan_newlink(struct net *net, struct net_device *dev, if (data[IFLA_VXLAN_LOCAL]) vxlan->saddr = nla_get_be32(data[IFLA_VXLAN_LOCAL]); - if (data[IFLA_VXLAN_LINK]) { - vxlan->link = nla_get_u32(data[IFLA_VXLAN_LINK]); + if (data[IFLA_VXLAN_LINK] && + (vxlan->link = nla_get_u32(data[IFLA_VXLAN_LINK]))) { + struct net_device *lowerdev + = __dev_get_by_index(net, vxlan->link); + + if (!lowerdev) { + pr_info("ifindex %d does not exist\n", vxlan->link); + return -ENODEV; + } - if (!tb[IFLA_MTU]) { - struct net_device *lowerdev; - lowerdev = __dev_get_by_index(net, vxlan->link); + if (!tb[IFLA_MTU]) dev->mtu = lowerdev->mtu - VXLAN_HEADROOM; - } } if (data[IFLA_VXLAN_TOS])