mirror of
https://github.com/Divested-Mobile/DivestOS-Build.git
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53 lines
1.9 KiB
Diff
53 lines
1.9 KiB
Diff
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From b66f442dd97c781e873e8f7b248e197f86fd2980 Mon Sep 17 00:00:00 2001
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From: Xiaoyu Ye <benyxy@codeaurora.org>
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Date: Mon, 19 Dec 2016 18:38:53 -0800
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Subject: ASoC: msm: qdsp6v2: Add range checking in msm_dai_q6_set_channel_map
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Range checking is added to prevent buffer overflow that due to inputs
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can be set by user space.
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CRs-Fixed: 1098363
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Change-Id: I057261291806240ee6d7b8106a5e83a7665e013d
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Signed-off-by: Xiaoyu Ye <benyxy@codeaurora.org>
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---
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sound/soc/msm/qdsp6v2/msm-dai-q6-v2.c | 12 +++++++++++-
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1 file changed, 11 insertions(+), 1 deletion(-)
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diff --git a/sound/soc/msm/qdsp6v2/msm-dai-q6-v2.c b/sound/soc/msm/qdsp6v2/msm-dai-q6-v2.c
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index 26cdd0f..fa21ec5 100644
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--- a/sound/soc/msm/qdsp6v2/msm-dai-q6-v2.c
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+++ b/sound/soc/msm/qdsp6v2/msm-dai-q6-v2.c
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@@ -1,4 +1,4 @@
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-/* Copyright (c) 2012-2016, The Linux Foundation. All rights reserved.
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+/* Copyright (c) 2012-2017, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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@@ -1889,6 +1889,11 @@ static int msm_dai_q6_set_channel_map(struct snd_soc_dai *dai,
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pr_err("%s: rx slot not found\n", __func__);
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return -EINVAL;
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}
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+ if (rx_num > AFE_PORT_MAX_AUDIO_CHAN_CNT) {
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+ pr_err("%s: invalid rx num %d\n", __func__, rx_num);
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+ return -EINVAL;
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+ }
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+
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for (i = 0; i < rx_num; i++) {
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dai_data->port_config.slim_sch.shared_ch_mapping[i] =
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rx_slot[i];
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@@ -1922,6 +1927,11 @@ static int msm_dai_q6_set_channel_map(struct snd_soc_dai *dai,
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pr_err("%s: tx slot not found\n", __func__);
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return -EINVAL;
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}
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+ if (tx_num > AFE_PORT_MAX_AUDIO_CHAN_CNT) {
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+ pr_err("%s: invalid tx num %d\n", __func__, tx_num);
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+ return -EINVAL;
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+ }
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+
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for (i = 0; i < tx_num; i++) {
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dai_data->port_config.slim_sch.shared_ch_mapping[i] =
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tx_slot[i];
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--
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cgit v1.1
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