diff options
| author | zhanglin <zhang.lin16@zte.com.cn> | 2019-10-26 15:54:16 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-11-10 11:25:28 +0100 |
| commit | 90bddaf253383b8a228726363f7a61dbda85facc (patch) | |
| tree | 6fc1624fab37ccaec882d9cfe8ca92b620367007 /net | |
| parent | 77da9481248c717f2538587dbdabb297f513ebc5 (diff) | |
net: Zeroing the structure ethtool_wolinfo in ethtool_get_wol()
[ Upstream commit 5ff223e86f5addbfae26419cbb5d61d98f6fbf7d ]
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to '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 97569d3e1937..7822defa5a5d 100644 --- a/net/core/ethtool.c +++ b/net/core/ethtool.c @@ -1450,11 +1450,13 @@ 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))) |