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 04:23:41 -0800 |
| commit | 79379b9694d7067f41035a551a7493760092fc48 (patch) | |
| tree | 571b539faad8f0da462f14660fc73d42bac5e4c6 | |
| parent | f3ce845cfe494296db847559b521706802f6eae0 (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>
| -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 feb7541b33fb..ccd496bf32d9 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; |