tree f337e39a3194c1de2330e3d0acc0b76e91a8593d
parent 9344a972961d1a6d2c04d9008b13617bcb6ec2ef
author Mathias Krause <minipli@googlemail.com> 1345030311 +0000
committer David S. Miller <davem@davemloft.net> 1345091791 -0700

Bluetooth: L2CAP - Fix info leak via getsockname()

The L2CAP code fails to initialize the l2_bdaddr_type member of struct
sockaddr_l2 and the padding byte added for alignment. It that for leaks
two bytes kernel stack via the getsockname() syscall. Add an explicit
memset(0) before filling the structure to avoid the info leak.

Signed-off-by: Mathias Krause <minipli@googlemail.com>
Cc: Marcel Holtmann <marcel@holtmann.org>
Cc: Gustavo Padovan <gustavo@padovan.org>
Cc: Johan Hedberg <johan.hedberg@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>