farsync: fix info leak in ioctl
authorSalva Peiró <speiro@ai2.upv.es>
Fri, 11 Oct 2013 09:50:03 +0000 (12:50 +0300)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 4 Nov 2013 12:31:02 +0000 (04:31 -0800)
commit3a26736015acfc8745db623efa7f57bc982ed516
tree26f355648aefd0b238137d2588a20ca781d18251
parenta41536775e712e7b438400f73e927ffe4b21149c
farsync: fix info leak in ioctl

[ Upstream commit 96b340406724d87e4621284ebac5e059d67b2194 ]

The fst_get_iface() 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: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/net/wan/farsync.c