tree 5b4254a64db65f1958a36ec6955dbba1b71031a7
parent af98441397227a5a4f212cd48710eea72a14dbdb
author Marcel Holtmann <marcel@holtmann.org> 1268687578 -0700
committer Marcel Holtmann <marcel@holtmann.org> 1269146972 +0100

Bluetooth: Fix potential bad memory access with sysfs files

When creating a high number of Bluetooth sockets (L2CAP, SCO
and RFCOMM) it is possible to scribble repeatedly on arbitrary
pages of memory. Ensure that the content of these sysfs files is
always less than one page. Even if this means truncating. The
files in question are scheduled to be moved over to debugfs in
the future anyway.

Based on initial patches from Neil Brown and Linus Torvalds

Reported-by: Neil Brown <neilb@suse.de>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>