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soc: qcom: add buffer overflow check on AON rx_buffer

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Add buffer overflow check while accessing data buffer
received from AON.

Change-Id: I0472a0ad1e6edc3fe8102850fddacd89ceea4959
Signed-off-by: Naveen S Nair <quic_naveensn@quicinc.com>
This commit is contained in:
Naveen S Nair 2023-08-02 14:51:32 +05:30
commit 98c03480ec
1 changed files with 5 additions and 0 deletions
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5
drivers/soc/qcom/slate_events_bridge.c
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@ -1,6 +1,7 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2021, The Linux Foundation. All rights reserved.
* Copyright (c) 2023, Qualcomm Innovation Center, Inc. All rights reserved.
*/
#include <linux/delay.h>
@ -439,6 +440,10 @@ void seb_rx_msg(void *data, int len)
dev->seb_resp_cmplt = true;
wake_up(&dev->link_state_wait);
if (dev->wait_for_resp) {
if (len > SEB_GLINK_INTENT_SIZE) {
pr_err("Invalid seb rx buffer length\n");
return;
}
memcpy(dev->rx_buf, data, len);
} else {
/* Handle the event received from Slate */