diff --git a/core/mac/src/pe/lim/lim_process_assoc_req_frame.c b/core/mac/src/pe/lim/lim_process_assoc_req_frame.c
index e86fe3aeed18..d39211873c14 100644
--- a/core/mac/src/pe/lim/lim_process_assoc_req_frame.c
+++ b/core/mac/src/pe/lim/lim_process_assoc_req_frame.c
@@ -1,5 +1,6 @@
 /*
  * Copyright (c) 2012-2020 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
@@ -2335,6 +2336,15 @@ void lim_process_assoc_req_frame(struct mac_context *mac_ctx, uint8_t *rx_pkt_in
 				session->limSystemRole,
 				QDF_MAC_ADDR_REF(hdr->sa));
 			return;
+		} else if (sta_ds->rmfEnabled && !sta_ds->is_key_installed) {
+			/* When PMF enabled, SA Query will be triggered
+			 * unexpectly if duplicated assoc_req received -
+			 * 1) after pre_auth node deleted and
+			 * 2) before key installed.
+			 * Here drop such duplicated assoc_req frame.
+			 */
+			pe_err("Drop duplicate assoc_req before 4-way HS");
+			return;
 		}
 	}