diff options
| author | Anton Lindqvist <anton@cvs.openbsd.org> | 2021-08-31 05:16:46 +0000 |
|---|---|---|
| committer | Anton Lindqvist <anton@cvs.openbsd.org> | 2021-08-31 05:16:46 +0000 |
| commit | a4c5b97a26e17ce681d3e773d7013f848e49ada2 (patch) | |
| tree | f9feffa5ec99680d60b394ff81d9b147fad7da62 /sys | |
| parent | e55fd2619aaba6001aa4e0a47efe9839eccb9b41 (diff) | |
Protect against missing bit to key symbols in ucc_bit_to_sym(). This can
only happen if ucc_hid_parse() has a bug, better play it safe.
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/dev/usb/ucc.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sys/dev/usb/ucc.c b/sys/dev/usb/ucc.c index 96bfcc1518b..39e588dee76 100644 --- a/sys/dev/usb/ucc.c +++ b/sys/dev/usb/ucc.c @@ -1,4 +1,4 @@ -/* $OpenBSD: ucc.c,v 1.19 2021/08/29 19:00:59 anton Exp $ */ +/* $OpenBSD: ucc.c,v 1.20 2021/08/31 05:16:45 anton Exp $ */ /* * Copyright (c) 2021 Anton Lindqvist <anton@openbsd.org> @@ -1003,7 +1003,7 @@ ucc_add_key(struct ucc_softc *sc, int32_t usage, u_int bit) int ucc_bit_to_sym(struct ucc_softc *sc, u_int bit, const struct ucc_keysym **us) { - if (bit >= sc->sc_rawsiz) + if (bit >= sc->sc_rawsiz || sc->sc_raw[bit] == NULL) return 1; *us = sc->sc_raw[bit]; return 0; |