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Commit 41599f4d authored by Kumar Anurag Singh's avatar Kumar Anurag Singh Committed by Abinath S
Browse files

dsp: q6lsm: Check size of payload before access 



check size of payload before access in q6lsm_mmapcallback.

Change-Id: I6a755ca4cf54078f0d00f38e303f1b1da29b244c
Signed-off-by: default avatarKumar Anurag Singh <quic_kumaranu@quicinc.com>
parent 3d5955a2

dsp/q6lsm.c

+7 −1
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0-only

/*

 * Copyright (c) 2013-2020, Linux Foundation. All rights reserved.

 * Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved.

 * Copyright (c) 2023-2024 Qualcomm Innovation Center, Inc. All rights reserved.

 */

#include <linux/fs.h>

#include <linux/mutex.h>
@@ -2036,6 +2036,12 @@ static int q6lsm_mmapcallback(struct apr_client_data *data, void *priv) 
		return 0;

	}



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

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

			data->payload_size);

		return -EINVAL;

	}



	command = payload[0];

	retcode = payload[1];

	sid = (data->token >> 8) & 0x0F;