Commit 2b13d06c authored Oct 16, 2013 by Salva Peiró Committed by David S. Miller Oct 18, 2013

wanxl: fix info leak in ioctl



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>

parent b8bde1c4

drivers/net/wan/wanxl.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -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;