[PATCH 4.17 084/101] ipvs: initialize tbl->entries in ip_vs_lblc_init_svc()

[Greg Kroah-Hartman]

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

------------------

From: Cong Wang <xiyou.wangcong@xxxxxxxxx>

commit 8b2ebb6cf064247d60cccbf1750610ac9bb2e672 upstream.

Similarly, tbl->entries is not initialized after kmalloc(),
therefore causes an uninit-value warning in ip_vs_lblc_check_expire(),
as reported by syzbot.

Reported-by: <syzbot+3e9695f147fb529aa9bc@xxxxxxxxxxxxxxxxxxxxxxxxx>
Cc: Simon Horman <horms@xxxxxxxxxxxx>
Cc: Julian Anastasov <ja@xxxxxx>
Cc: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
Signed-off-by: Cong Wang <xiyou.wangcong@xxxxxxxxx>
Acked-by: Julian Anastasov <ja@xxxxxx>
Acked-by: Simon Horman <horms@xxxxxxxxxxxx>
Signed-off-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 net/netfilter/ipvs/ip_vs_lblc.c |    1 +
 1 file changed, 1 insertion(+)

--- a/net/netfilter/ipvs/ip_vs_lblc.c
+++ b/net/netfilter/ipvs/ip_vs_lblc.c
@@ -371,6 +371,7 @@ static int ip_vs_lblc_init_svc(struct ip
 	tbl->counter = 1;
 	tbl->dead = false;
 	tbl->svc = svc;
+	atomic_set(&tbl->entries, 0);
 
 	/*
 	 *    Hook periodic timer for garbage collection