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(parent: 792039c) | patch
l2tp: fix info leak via getsockname()
authorMathias Krause <minipli@googlemail.com>
Wed, 15 Aug 2012 11:31:52 +0000 (11:31 +0000)
committerDavid S. Miller <davem@davemloft.net>
Thu, 16 Aug 2012 04:36:31 +0000 (21:36 -0700)
commit04d4fbca1017c11381e7d82acea21dd741e748bc
treea12bca825e4a2251c9acec3812a8cbfd067abec1tree | snapshot
parent792039c73cf176c8e39a6e8beef2c94ff46522edcommit | diff
l2tp: fix info leak via getsockname()

The L2TP code for IPv6 fails to initialize the l2tp_unused member of
struct sockaddr_l2tpip6 and that for leaks two bytes kernel stack via
the getsockname() syscall. Initialize l2tp_unused with 0 to avoid the
info leak.

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