qcacmn: Add user id range check to prevent out of range access

A random crash may be caused by out of range access. Add MU
user id check to prevent out of range access.

Change-Id: I531d6c03024c4a6af4e0db97ea00d0874aaef387

hal/wifi3.0/hal_api_mon.h

@@ -71,7 +71,7 @@
 #define HAL_TLV_STATUS_MSDU_START 7
 #define HAL_TLV_STATUS_MSDU_END 8
 
-#define HAL_MAX_UL_MU_USERS			8
+#define HAL_MAX_UL_MU_USERS	37
 
 #define HAL_RX_PKT_TYPE_11A	0
 #define HAL_RX_PKT_TYPE_11B	1

hal/wifi3.0/hal_generic_api.h

@@ -449,17 +449,19 @@ hal_rx_status_get_tlv_info_generic(void *rx_tlv_hdr, void *ppduinfo,
 		default:
 			break;
 		}
-
-		mon_rx_user_status = &ppdu_info->rx_user_status[user_id];
-
-		mon_rx_user_status->mcs =
-			HAL_RX_GET(rx_tlv, RX_PPDU_END_USER_STATS_1,
-				   MCS);
-		mon_rx_user_status->nss =
-			HAL_RX_GET(rx_tlv, RX_PPDU_END_USER_STATS_1,
-				   NSS);
-
-		hal_rx_handle_ofdma_info(rx_tlv, mon_rx_user_status);
+		if (user_id < HAL_MAX_UL_MU_USERS) {
+			mon_rx_user_status =
+				&ppdu_info->rx_user_status[user_id];
+
+			mon_rx_user_status->mcs =
+				HAL_RX_GET(rx_tlv, RX_PPDU_END_USER_STATS_1,
+					   MCS);
+			mon_rx_user_status->nss =
+				HAL_RX_GET(rx_tlv, RX_PPDU_END_USER_STATS_1,
+					   NSS);
+
+			hal_rx_handle_ofdma_info(rx_tlv, mon_rx_user_status);
+		}
 
 		ppdu_info->com_info.mpdu_cnt_fcs_ok =
 			HAL_RX_GET(rx_tlv, RX_PPDU_END_USER_STATS_3,