diff options
| author | zhanglin | 2019-10-26 15:54:16 +0800 |
|---|---|---|
| committer | David S. Miller | 2019-10-26 11:20:10 -0700 |
| commit | 5ff223e86f5addbfae26419cbb5d61d98f6fbf7d (patch) | |
| tree | 1b571abe9e6ab50b7b5708e865b98d9576469f3e | |
| parent | 7c3bebc3d8688b84795c11848c314a2fbfe045e0 (diff) | |
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>
| -rw-r--r-- | net/core/ethtool.c | 4 |
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))) |