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[PATCH 4.18 026/197] net/ipv6: Put lwtstate when destroying fib6_info

4.18-stable review patch.  If anyone has any objections, please let me know.


From: David Ahern <dsahern@xxxxxxxxx>

[ Upstream commit 80f1a0f4e0cd4bfc8a74fc1c39843a6e7b206b95 ]

Prior to the introduction of fib6_info lwtstate was managed by the dst
code. With fib6_info releasing lwtstate needs to be done when the struct
is freed.

Fixes: 93531c674315 ("net/ipv6: separate handling of FIB entries from dst based routes")
Signed-off-by: David Ahern <dsahern@xxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
 net/ipv6/ip6_fib.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/net/ipv6/ip6_fib.c
+++ b/net/ipv6/ip6_fib.c
@@ -198,6 +198,8 @@ void fib6_info_destroy_rcu(struct rcu_he
+	lwtstate_put(f6i->fib6_nh.nh_lwtstate);
 	if (f6i->fib6_nh.nh_dev)