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qcacld-3.0: Incorrect MCS index is passed

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Fix the potential out of bound read of the supported MCS rate
array.

Change-Id: I172dcac9d1ce79b16e4cd2a4ee321d9e93102866
CRs-Fixed: 3304227
This commit is contained in:
Sandeep Puligilla 2022-09-30 00:44:09 -07:00 • committed by Madan Koyyalamudi
commit d1372d6e6a
1 changed files with 5 additions and 0 deletions
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5
core/hdd/src/wlan_hdd_hostapd.c
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@ -1,5 +1,6 @@
/*
* Copyright (c) 2012-2021 The Linux Foundation. All rights reserved.
* Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved.
*
* Permission to use, copy, modify, and/or distribute this software for
* any purpose with or without fee is hereby granted, provided that the
@ -1347,6 +1348,10 @@ static int calcuate_max_phy_rate(int mode, int nss, int ch_width,
if (mode == SIR_SME_PHY_MODE_HT) {
/* check for HT Mode */
maxidx = ht_mcs_idx;
if (maxidx > 7) {
hdd_err("ht_mcs_idx %d is incorrect", ht_mcs_idx);
return maxrate;
}
if (nss == 1) {
supported_mcs_rate = supported_mcs_rate_nss1;
} else if (nss == 2) {