From: miod <miod@openbsd.org>
Date: Fri, 5 Aug 2022 16:59:50 +0000 (+0000)
Subject: Fix bounds check in ucc_add_key(); ok anton@
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=9b9060cab4be7f0b03a3f31dedc4d02fdc1399a0;p=openbsd

Fix bounds check in ucc_add_key(); ok anton@
---

diff --git a/sys/dev/usb/ucc.c b/sys/dev/usb/ucc.c
index aacf7d7f796..7f08db1a0db 100644
--- a/sys/dev/usb/ucc.c
+++ b/sys/dev/usb/ucc.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: ucc.c,v 1.33 2022/03/29 16:04:36 anton Exp $	*/
+/*	$OpenBSD: ucc.c,v 1.34 2022/08/05 16:59:50 miod Exp $	*/
 
 /*
  * Copyright (c) 2021 Anton Lindqvist <anton@openbsd.org>
@@ -1013,7 +1013,7 @@ ucc_add_key(struct ucc_softc *sc, int32_t usage, u_int bit)
 	if (ucc_usage_to_sym(usage, &us))
 		return 0;
 
-	if (sc->sc_maplen + 2 > sc->sc_mapsiz)
+	if (sc->sc_maplen + 2 >= sc->sc_mapsiz)
 		return ENOMEM;
 	sc->sc_map[sc->sc_maplen++] = KS_KEYCODE(sc->sc_isarray ? usage : bit);
 	sc->sc_map[sc->sc_maplen++] = us->us_key;