From: Mathias Krause <minipli@googlemail.com>
Date: Sun, 7 Apr 2013 01:51:50 +0000 (+0000)
Subject: Bluetooth: RFCOMM - Fix missing msg_namelen update in  rfcomm_sock_recvmsg()
X-Git-Tag: v3.2.45~18
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bbad6f725f1d1b92e5eb3a7c6a8875eeec955747;p=pandora-kernel.git

Bluetooth: RFCOMM - Fix missing msg_namelen update in  rfcomm_sock_recvmsg()

[ Upstream commit e11e0455c0d7d3d62276a0c55d9dfbc16779d691 ]

If RFCOMM_DEFER_SETUP is set in the flags, rfcomm_sock_recvmsg() returns
early with 0 without updating the possibly set msg_namelen member. This,
in turn, leads to a 128 byte kernel stack leak in net/socket.c.

Fix this by updating msg_namelen in this case. For all other cases it
will be handled in bt_sock_stream_recvmsg().

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

Reading git-diff-tree failed