]> git.baikalelectronics.ru Git - kernel.git/commit
Bluetooth: RFCOMM - Fix info leak in getsockopt(BT_SECURITY)
authorMathias Krause <minipli@googlemail.com>
Wed, 15 Aug 2012 11:31:48 +0000 (11:31 +0000)
committerDavid S. Miller <davem@davemloft.net>
Thu, 16 Aug 2012 04:36:30 +0000 (21:36 -0700)
commitd44339d174ef9c5b1b797827ce49a9a90b451c29
treeb8eadec4216bad623c89e9079133720275355597
parent55ae1a349cca592b6748a154a5c26263a9733ab7
Bluetooth: RFCOMM - Fix info leak in getsockopt(BT_SECURITY)

The RFCOMM code fails to initialize the key_size member of struct
bt_security before copying it to userland -- that for leaking one
byte kernel stack. Initialize key_size with 0 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>
net/bluetooth/rfcomm/sock.c