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(parent: a5598bd) | patch
l2tp: fix info leak in l2tp_ip6_recvmsg()
authorMathias Krause <minipli@googlemail.com>
Sun, 7 Apr 2013 01:51:55 +0000 (01:51 +0000)
committerDavid S. Miller <davem@davemloft.net>
Sun, 7 Apr 2013 20:28:01 +0000 (16:28 -0400)
commitb860d3cc62877fad02863e2a08efff69a19382d2
treee654b34c09acf71de2864416e5d13cb3cd0c10f3tree | snapshot (tar.gz zip)
parenta5598bd9c087dc0efc250a5221e5d0e6f584ee88commit | diff
l2tp: fix info leak in l2tp_ip6_recvmsg()

The L2TP code for IPv6 fails to initialize the l2tp_conn_id member of
struct sockaddr_l2tpip6 and therefore leaks four bytes kernel stack
in l2tp_ip6_recvmsg() in case msg_name is set.

Initialize l2tp_conn_id with 0 to avoid the info leak.

Signed-off-by: Mathias Krause <minipli@googlemail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/l2tp/l2tp_ip6.c diff | blob | blame | history