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authorzhanglin <zhang.lin16@zte.com.cn>2019-10-26 10:54:16 +0300
committerDavid S. Miller <davem@davemloft.net>2019-10-26 21:20:10 +0300
commit5ff223e86f5addbfae26419cbb5d61d98f6fbf7d (patch)
tree1b571abe9e6ab50b7b5708e865b98d9576469f3e /net
parent7c3bebc3d8688b84795c11848c314a2fbfe045e0 (diff)
downloadlinux-5ff223e86f5addbfae26419cbb5d61d98f6fbf7d.tar.xz
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: zhanglin <zhang.lin16@zte.com.cn> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/core/ethtool.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index c763106c73fc..cd9bc67381b2 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -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)))