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dsp: q6voice: Add buf size check for cvs cal data

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Check for the max size of cvs command register
calibration data that can be copied else will
result in buffer overflow.

Change-Id: Id7a4c5a9795143798b68dfde779f17fb450e3848
Signed-off-by: Soumya Managoli <quic_c_smanag@quicinc.com>
This commit is contained in:
Soumya Managoli 2023-04-11 10:17:55 +05:30
commit 8c0d7cffab
1 changed files with 8 additions and 1 deletions
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9
dsp/q6voice.c
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@ -1,7 +1,7 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2012-2021, The Linux Foundation. All rights reserved.
* Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved.
* Copyright (c) 2022-2023, Qualcomm Innovation Center, Inc. All rights reserved.
*/
#include <linux/slab.h>
#include <linux/kthread.h>
@ -2852,6 +2852,13 @@ static int voice_send_cvs_register_cal_cmd(struct voice_data *v)
goto unlock;
}
if (col_data->cal_data.size >= MAX_COL_INFO_SIZE) {
pr_err("%s: Invalid cal data size %d!\n",
__func__, col_data->cal_data.size);
ret = -EINVAL;
goto unlock;
}
memcpy(&cvs_reg_cal_cmd.cvs_cal_data.column_info[0],
(void *) &((struct audio_cal_info_voc_col *)
col_data->cal_info)->data,