Commit 5ff223e8 authored by zhanglin's avatar zhanglin Committed by David S. Miller
Browse files

net: Zeroing the structure ethtool_wolinfo in ethtool_get_wol() 



memset() the structure ethtool_wolinfo that has padded bytes
but the padded bytes have not been zeroed out.

Signed-off-by: default avatarzhanglin <zhang.lin16@zte.com.cn>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 7c3bebc3

net/core/ethtool.c

+3 −1
Original line number Diff line number Diff line
@@ -1396,11 +1396,13 @@ static int ethtool_reset(struct net_device *dev, char __user *useraddr) 


static int ethtool_get_wol(struct net_device *dev, char __user *useraddr)

{

	struct ethtool_wolinfo wol = { .cmd = ETHTOOL_GWOL };

	struct ethtool_wolinfo wol;



	if (!dev->ethtool_ops->get_wol)

		return -EOPNOTSUPP;



	memset(&wol, 0, sizeof(struct ethtool_wolinfo));

	wol.cmd = ETHTOOL_GWOL;

	dev->ethtool_ops->get_wol(dev, &wol);



	if (copy_to_user(useraddr, &wol, sizeof(wol)))