diff --git a/CORE/CLD_TXRX/TXRX/ol_txrx.c b/CORE/CLD_TXRX/TXRX/ol_txrx.c
index b137cdf..adf8dad 100644
--- a/CORE/CLD_TXRX/TXRX/ol_txrx.c
+++ b/CORE/CLD_TXRX/TXRX/ol_txrx.c
@@ -288,6 +288,15 @@
     u_int32_t group_vdev_bit_mask, vdev_bit_mask, group_vdev_id_mask;
     u_int32_t membership;
     struct ol_txrx_vdev_t *vdev;
+
+    if (group_id >= OL_TX_MAX_TXQ_GROUPS) {
+        TXRX_PRINT(TXRX_PRINT_LEVEL_WARN,
+            "%s: invalid group_id=%u, ignore update.\n",
+            __func__,
+            group_id);
+        return;
+    }
+
     group = &pdev->txq_grps[group_id];
 
     membership = OL_TXQ_GROUP_MEMBERSHIP_GET(vdev_id_mask,ac_mask);