From: Jiri Kosina <jkosina@suse.cz>
Date: Thu, 21 Aug 2014 14:56:47 +0000 (-0500)
Subject: HID: logitech: fix bounds checking on LED report size
X-Git-Tag: omap-for-v3.17/fixes-against-rc2~28^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=51217e69697fba92a06e07e16f55c9a52d8e8945;p=pandora-kernel.git

HID: logitech: fix bounds checking on LED report size

The check on report size for REPORT_TYPE_LEDS in logi_dj_ll_raw_request()
is wrong; the current check doesn't make any sense -- the report allocated
by HID core in hid_hw_raw_request() can be much larger than
DJREPORT_SHORT_LENGTH, and currently logi_dj_ll_raw_request() doesn't
handle this properly at all.

Fix the check by actually trimming down the report size properly if it is
too large.

Cc: stable@vger.kernel.org
Reported-by: Ben Hawkes <hawkes@google.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---

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