From: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Date: Tue, 19 Jan 2016 11:34:58 +0000 (+0100)
Subject: HID: core: prevent out-of-bound readings
X-Git-Tag: v3.2.85~11
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=119e11a50fc0e5218e0a0f2d7d87c0cbf1d54940;p=pandora-kernel.git

HID: core: prevent out-of-bound readings

commit 50220dead1650609206efe91f0cc116132d59b3f upstream.

Plugging a Logitech DJ receiver with KASAN activated raises a bunch of
out-of-bound readings.

The fields are allocated up to MAX_USAGE, meaning that potentially, we do
not have enough fields to fit the incoming values.
Add checks and silence KASAN.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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