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vti: check nla_put_* return value 

Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Hangbin Liu 2017-05-08 17:57:13 +08:00 committed by David S. Miller
parent 0d0e57697f
commit 8ed508fd4b
1 changed files with 7 additions and 6 deletions
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13
net/ipv4/ip_vti.c
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@ -546,12 +546,13 @@ static int vti_fill_info(struct sk_buff *skb, const struct net_device *dev)
struct ip_tunnel *t = netdev_priv(dev);
struct ip_tunnel_parm *p = &t->parms;
nla_put_u32(skb, IFLA_VTI_LINK, p->link);
nla_put_be32(skb, IFLA_VTI_IKEY, p->i_key);
nla_put_be32(skb, IFLA_VTI_OKEY, p->o_key);
nla_put_in_addr(skb, IFLA_VTI_LOCAL, p->iph.saddr);
nla_put_in_addr(skb, IFLA_VTI_REMOTE, p->iph.daddr);
nla_put_u32(skb, IFLA_VTI_FWMARK, t->fwmark);
if (nla_put_u32(skb, IFLA_VTI_LINK, p->link) ||
nla_put_be32(skb, IFLA_VTI_IKEY, p->i_key) ||
nla_put_be32(skb, IFLA_VTI_OKEY, p->o_key) ||
nla_put_in_addr(skb, IFLA_VTI_LOCAL, p->iph.saddr) ||
nla_put_in_addr(skb, IFLA_VTI_REMOTE, p->iph.daddr) ||
nla_put_u32(skb, IFLA_VTI_FWMARK, t->fwmark))
return -EMSGSIZE;
return 0;
}