[PATCH 1/1] openvswitch: fix infoleak in conntrack

From: Xidong Wang
Date: Mon Jun 15 2020 - 22:13:30 EST


From: xidongwang <wangxidong_97@xxxxxxx>

The stack object âzone_limitâ has 3 members. In function
ovs_ct_limit_get_default_limit(), the member "count" is
not initialized and sent out via ânla_put_nohdrâ.

Signed-off-by: xidongwang <wangxidong_97@xxxxxxx>
---
net/openvswitch/conntrack.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/net/openvswitch/conntrack.c b/net/openvswitch/conntrack.c
index 4340f25..1b7820a 100644
--- a/net/openvswitch/conntrack.c
+++ b/net/openvswitch/conntrack.c
@@ -2020,6 +2020,7 @@ static int ovs_ct_limit_get_default_limit(struct ovs_ct_limit_info *info,
{
struct ovs_zone_limit zone_limit;
int err;
+ memset(&zone_limit, 0, sizeof(zone_limit));

zone_limit.zone_id = OVS_ZONE_LIMIT_DEFAULT_ZONE;
zone_limit.limit = info->default_limit;
--
2.7.4