[IPV6]: skb leakage in inet6_csk_xmit

inet6_csk_xit does not free skb when routing fails.

Signed-off-by: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 0 deletions

diff --git a/net/ipv6/inet6_connection_sock.c b/net/ipv6/inet6_connection_sock.c
index f8f3a37a1494..eb2865d5ae28 100644
--- a/net/ipv6/inet6_connection_sock.c
+++ b/net/ipv6/inet6_connection_sock.c
@@ -173,6 +173,7 @@ int inet6_csk_xmit(struct sk_buff *skb, int ipfragok)
 
                 if (err) {
                         sk->sk_err_soft = -err;
+                        kfree_skb(skb);
                         return err;
                 }
 
@@ -181,6 +182,7 @@ int inet6_csk_xmit(struct sk_buff *skb, int ipfragok)
 
                 if ((err = xfrm_lookup(&dst, &fl, sk, 0)) < 0) {
                         sk->sk_route_caps = 0;
+                        kfree_skb(skb);
                         return err;
                 }