diff options
author | Salva Peiró <speiro@ai2.upv.es> | 2013-10-16 12:46:50 +0200 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-11-04 04:35:17 -0800 |
commit | 00ab8cd727c68039a1f6b820abd7adb0ea64cf8a (patch) | |
tree | 5e3c3b8d6bd37aa44b7a8df069f42346c65f64b0 /drivers/net | |
parent | ac835dd77807529d243811066812169c56f49133 (diff) |
wanxl: fix info leak in ioctl
[ Upstream commit 2b13d06c9584b4eb773f1e80bbaedab9a1c344e1 ]
The wanxl_ioctl() code fails to initialize the two padding bytes of
struct sync_serial_settings after the ->loopback member. Add an explicit
memset(0) before filling the structure to avoid the info leak.
Signed-off-by: Salva Peiró <speiro@ai2.upv.es>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/net')
-rw-r--r-- | drivers/net/wan/wanxl.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/wan/wanxl.c b/drivers/net/wan/wanxl.c index 6a24a5a70cc7..4c0a69779b89 100644 --- a/drivers/net/wan/wanxl.c +++ b/drivers/net/wan/wanxl.c @@ -355,6 +355,7 @@ static int wanxl_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) ifr->ifr_settings.size = size; /* data size wanted */ return -ENOBUFS; } + memset(&line, 0, sizeof(line)); line.clock_type = get_status(port)->clocking; line.clock_rate = 0; line.loopback = 0; |