From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Wed, 10 Jan 2018 09:39:03 +0000 (+0300)
Subject: HID: roccat: prevent an out of bounds read in kovaplus_profile_activated()
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=50a44c165a67ff0b7e14d221af6cb6c1035aa90a;p=pandora-kernel.git

HID: roccat: prevent an out of bounds read in kovaplus_profile_activated()

commit 7ad81482cad67cbe1ec808490d1ddfc420c42008 upstream.

We get the "new_profile_index" value from the mouse device when we're
handling raw events.  Smatch taints it as untrusted data and complains
that we need a bounds check.  This seems like a reasonable warning
otherwise there is a small read beyond the end of the array.

Fixes: 0e70f97f257e ("HID: roccat: Add support for Kova[+] mouse")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Silvan Jegen <s.jegen@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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