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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.

Change-Id: If3fd2d872a1b1ab9521d937b86a29fc468a8bbfe
Signed-off-by: Avijit Kanti Das <avijitnsec@codeaurora.org>
This commit is contained in:
Avijit Kanti Das 2014-05-14 11:03:56 -07:00
parent 37430483b9
commit 63c317dbee
1 changed files with 3 additions and 1 deletions
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4
net/core/ethtool.c
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@ -711,11 +711,13 @@ 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)))