HID: picolcd: sanity check report size in raw_event() callback
authorJiri Kosina <jkosina@suse.cz>
Wed, 27 Aug 2014 07:13:15 +0000 (09:13 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sun, 5 Oct 2014 21:54:08 +0000 (14:54 -0700)
commit8ee6be5563a5bdb9a5df5f88f8bbbab8930fe6da
tree98509cf955b083645254f87be676ae3edcad8076
parentfe63ce5175e58b55d9fa5805d24faffcad214760
HID: picolcd: sanity check report size in raw_event() callback

commit 844817e47eef14141cf59b8d5ac08dd11c0a9189 upstream.

The report passed to us from transport driver could potentially be
arbitrarily large, therefore we better sanity-check it so that raw_data
that we hold in picolcd_pending structure are always kept within proper
bounds.

Reported-by: Steven Vittitoe <scvitti@google.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/hid/hid-picolcd_core.c