lwtunnel: fix memory leak
The built lwtunnel_state struct has to be freed after comparison.
Fixes: 571e722676
("ipv4: support for fib route lwtunnel encap attributes")
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Acked-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
parent
c938a00344
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@ -36,6 +36,11 @@ struct lwtunnel_encap_ops {
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};
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#ifdef CONFIG_LWTUNNEL
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static inline void lwtstate_free(struct lwtunnel_state *lws)
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{
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kfree(lws);
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}
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static inline struct lwtunnel_state *
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lwtstate_get(struct lwtunnel_state *lws)
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{
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@ -51,7 +56,7 @@ static inline void lwtstate_put(struct lwtunnel_state *lws)
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return;
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if (atomic_dec_and_test(&lws->refcnt))
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kfree(lws);
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lwtstate_free(lws);
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}
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static inline bool lwtunnel_output_redirect(struct lwtunnel_state *lwtstate)
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@ -539,7 +539,7 @@ int fib_encap_match(struct net *net, u16 encap_type,
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{
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struct lwtunnel_state *lwtstate;
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struct net_device *dev = NULL;
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int ret;
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int ret, result = 0;
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if (encap_type == LWTUNNEL_ENCAP_NONE)
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return 0;
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@ -548,10 +548,12 @@ int fib_encap_match(struct net *net, u16 encap_type,
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dev = __dev_get_by_index(net, oif);
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ret = lwtunnel_build_state(dev, encap_type,
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encap, &lwtstate);
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if (!ret)
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return lwtunnel_cmp_encap(lwtstate, nh->nh_lwtstate);
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if (!ret) {
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result = lwtunnel_cmp_encap(lwtstate, nh->nh_lwtstate);
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lwtstate_free(lwtstate);
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}
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return 0;
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return result;
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}
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int fib_nh_match(struct fib_config *cfg, struct fib_info *fi)
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