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Commit 5550b517 authored Feb 02, 2017 by Yeleswarapu Nagaradhesh

ASoC: wcd9xxx: fix out of bound access



Somtimes index can be more than array size of imped_index.
which can lead to out of bound access. Fix this by checking
for valid value of index.

CRs-Fixed: 2000364
Change-Id: Ie571992f7a0b8156b02e09bb3adb0f9c9a370df7
Signed-off-by: Yeleswarapu Nagaradhesh <nagaradh@codeaurora.org>

parent 87905821

sound/soc/codecs/wcd9xxx-common-v2.c

+2 −2

Original line number	Diff line number	Diff line
		/*
		* Copyright (c) 2015-2016, The Linux Foundation. All rights reserved.
		* Copyright (c) 2015-2017, The Linux Foundation. All rights reserved.
		*
		* This program is free software; you can redistribute it and/or modify
		* it under the terms of the GNU General Public License version 2 and
		@@ -194,7 +194,7 @@ void wcd_clsh_imped_config(struct snd_soc_codec *codec, int imped, bool reset)
		return;
		}
		index = get_impedance_index(imped);
		if (index >= ARRAY_SIZE(imped_index)) {
		if (index >= (ARRAY_SIZE(imped_index) - 1)) {
		pr_debug("%s, impedance not in range = %d\n", __func__, imped);
		return;
		}