qlcnic: info leak in qlcnic_dcb_peer_app_info()

This function is called from dcbnl_build_peer_app().  The "info"
struct isn't initialized at all so we disclose 2 bytes of uninitialized
stack data.  We should clear it before passing it to the user.

Fixes: 48365e485275 ('qlcnic: dcb: Add support for CEE Netlink interface.')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_dcb.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_dcb.c
index a51fe18..561cb11 100644 (file)
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_dcb.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_dcb.c
@@ -1020,6 +1020,7 @@ static int qlcnic_dcb_peer_app_info(struct net_device *netdev,
        struct qlcnic_dcb_cee *peer;
        int i;
 
+       memset(info, 0, sizeof(*info));
        *app_count = 0;
 
        if (!test_bit(QLCNIC_DCB_STATE, &adapter->dcb->state))