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Commit 1c8aec0c authored by Vatsal Bucha's avatar Vatsal Bucha Committed by Meng Wang
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dsp: q6usm: Check size of payload before access 



Check size of payload before access in q6usm_mmapcallback.

Change-Id: Iff0672532c2ea40e7129237a92d8365d6b554cf2
Signed-off-by: default avatarVatsal Bucha <vbucha@codeaurora.org>
parent a60b408c

dsp/q6usm.c

+6 −1
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0-only

/*

 * Copyright (c) 2012-2018, The Linux Foundation. All rights reserved.

 * Copyright (c) 2012-2019, The Linux Foundation. All rights reserved.

 */

#include <linux/mutex.h>

#include <linux/wait.h>
@@ -490,6 +490,11 @@ static int32_t q6usm_mmapcallback(struct apr_client_data *data, void *priv) 
	uint32_t token;

	uint32_t *payload = data->payload;



	if (data->payload_size < (2 * sizeof(uint32_t))) {

		pr_err("%s: payload has invalid size[%d]\n", __func__,

		       data->payload_size);

		return -EINVAL;

	}

	pr_debug("%s: ptr0[0x%x]; ptr1[0x%x]; opcode[0x%x]\n",

		 __func__, payload[0], payload[1], data->opcode);

	pr_debug("%s: token[0x%x]; payload_size[%d]; src[%d]; dest[%d];\n",