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dsp: afe: check for payload size before payload access 

Check if payload data is big enough before accessing
the data in it.

Change-Id: I939f205a8cebf6ef4859f81fae5429bca013d540
Signed-off-by: Karthikeyan Mani <kmani@codeaurora.org>
This commit is contained in:
Karthikeyan Mani 2019-03-12 23:03:18 -07:00 committed by syphyr
parent a72aa003e4
commit 8dc3bb6ce4
1 changed files with 6 additions and 1 deletions
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7
sound/soc/msm/qdsp6v2/q6afe.c
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@ -1,4 +1,4 @@
/* Copyright (c) 2012-2016, 2019 The Linux Foundation. All rights reserved.
/* Copyright (c) 2012-2019, 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
@ -235,6 +235,11 @@ static int32_t afe_callback(struct apr_client_data *data, void *priv)
uint16_t port_id = 0;
payload = data->payload;
if (data->opcode == APR_BASIC_RSP_RESULT) {
if (data->payload_size < (2 * sizeof(uint32_t))) {
pr_err("%s: Error: size %d is less than expected\n",
__func__, data->payload_size);
return -EINVAL;
}
pr_debug("%s:opcode = 0x%x cmd = 0x%x status = 0x%x token=%d\n",
__func__, data->opcode,
payload[0], payload[1], data->token);