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https://github.com/Divested-Mobile/DivestOS-Build.git
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38 lines
1.2 KiB
Diff
38 lines
1.2 KiB
Diff
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From ac328eb631fa74a63d5d2583e6bfeeb5a7a2df65 Mon Sep 17 00:00:00 2001
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From: Ashish Jain <ashishj@codeaurora.org>
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Date: Mon, 20 Jun 2016 18:09:07 +0530
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Subject: ASoC: msm: qdsp6v2: DAP: Add check to validate data length
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Validate input data length to ensure only relevant data
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is copied.
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CRs-Fixed: 1027585
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Change-Id: I67eb4f162f944bbf4d9e55fb8fe93759e6b8ff91
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Signed-off-by: Ashish Jain <ashishj@codeaurora.org>
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---
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sound/soc/msm/qdsp6v2/msm-ds2-dap-config.c | 8 ++++++++
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1 file changed, 8 insertions(+)
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diff --git a/sound/soc/msm/qdsp6v2/msm-ds2-dap-config.c b/sound/soc/msm/qdsp6v2/msm-ds2-dap-config.c
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index fea7bb4..379062e 100644
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--- a/sound/soc/msm/qdsp6v2/msm-ds2-dap-config.c
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+++ b/sound/soc/msm/qdsp6v2/msm-ds2-dap-config.c
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@@ -1522,6 +1522,14 @@ static int msm_ds2_dap_get_param(u32 cmd, void *arg)
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goto end;
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}
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+ /* Return if invalid length */
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+ if (dolby_data->length >
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+ (DOLBY_MAX_LENGTH_INDIVIDUAL_PARAM - DOLBY_PARAM_PAYLOAD_SIZE)) {
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+ pr_err("Invalid length %d", dolby_data->length);
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+ rc = -EINVAL;
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+ goto end;
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+ }
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+
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for (i = 0; i < DS2_DEVICES_ALL; i++) {
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if ((dev_map[i].active) &&
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(dev_map[i].device_id & dolby_data->device_id)) {
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--
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cgit v1.1
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