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qcacmn: Check pcl array size against QDF_MAX_NUM_CHAN

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While populating preferred channel list array, length
has not been checked against QDF_MAX_NUM_CHAN which
is size of PCL.

Fix it by checking indices and length against QDF_MAX_NUM_CHAN

CRs-Fixed: 2169424
Change-Id: I8c4d050bfc7040fba052eb42b32a91302a0a0ecb
This commit is contained in:
Krunal Soni 2018-01-09 11:00:28 -08:00 • committed by snandini
commit 5428570e41
1 changed files with 5 additions and 1 deletions
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6
umac/cmn_services/policy_mgr/src/wlan_policy_mgr_pcl.c
View file

@ -1540,6 +1540,10 @@ QDF_STATUS policy_mgr_modify_sap_pcl_based_on_mandatory_channel(
for (i = 0; i < *pcl_len_org; i++) {
found = false;
if (i >= QDF_MAX_NUM_CHAN) {
policy_mgr_debug("index is exceeding QDF_MAX_NUM_CHAN");
break;
}
for (j = 0; j < pm_ctx->sap_mandatory_channels_len; j++) {
if (pcl_list_org[i] ==
pm_ctx->sap_mandatory_channels[j]) {
@ -1547,7 +1551,7 @@ QDF_STATUS policy_mgr_modify_sap_pcl_based_on_mandatory_channel(
break;
}
}
if (found) {
if (found && (pcl_len < QDF_MAX_NUM_CHAN)) {
pcl_list[pcl_len] = pcl_list_org[i];
weight_list[pcl_len++] = weight_list_org[i];
}