From: Tom Herbert <[email protected]>
Date: Mon, 17 Aug 2015 11:59:17 -0700
> +static int ila_build_state(struct net_device *dev, struct nlattr *nla,
> + struct lwtunnel_state **ts)
> +{
> + struct ila_params *p;
> + struct nlattr *tb[ILA_ATTR_MAX + 1];
> + size_t encap_len = sizeof(*p);
> + struct lwtunnel_state *newts;
> + int ret;
> +
> + ret = nla_parse_nested(tb, ILA_ATTR_MAX, nla,
> + ila_nl_policy);
> + if (ret < 0)
> + return ret;
> +
> + newts = lwtunnel_state_alloc(encap_len);
> + if (!newts)
> + return -ENOMEM;
> +
> + newts->len = encap_len;
> + p = ila_params_lwtunnel(newts);
> +
> + if (!tb[ILA_ATTR_LOCATOR])
> + return -EINVAL;
This final error check leaks 'newts'.
You should probably just validate that ILA_ATTR_LOCATOR is present
before allocating any resources at all.
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