ipvs: initialize tbl->entries in ip_vs_lblc_init_svc()

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@syzkaller.appspotmail.com>
Cc: Simon Horman <horms@verge.net.au>
Cc: Julian Anastasov <ja@ssi.bg>
Cc: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Julian Anastasov <ja@ssi.bg>
Acked-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

diff --git a/net/netfilter/ipvs/ip_vs_lblc.c b/net/netfilter/ipvs/ip_vs_lblc.c
index 08147fc6400ccf65ca7b8688826aaba1f3fa85c5..b9f375e6dc937d2979074365118ecd11d662c282 100644 (file)
--- a/net/netfilter/ipvs/ip_vs_lblc.c
+++ b/net/netfilter/ipvs/ip_vs_lblc.c
@@ -372,6 +372,7 @@ static int ip_vs_lblc_init_svc(struct ip_vs_service *svc)
        tbl->counter = 1;
        tbl->dead = false;
        tbl->svc = svc;
+       atomic_set(&tbl->entries, 0);
 
        /*
         *    Hook periodic timer for garbage collection