diff --git a/drivers/staging/lustre/lustre/ptlrpc/pack_generic.c b/drivers/staging/lustre/lustre/ptlrpc/pack_generic.c
index 45c0b84621e4b617752c72df385b11139aa737d4..cddeeb6bb23d826971f2bec635d74c452b81be9e 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/pack_generic.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/pack_generic.c
@@ -300,6 +300,7 @@ lustre_get_emerg_rs(struct ptlrpc_service_part *svcpt)
 	spin_unlock(&svcpt->scp_rep_lock);
 
 	memset(rs, 0, svcpt->scp_service->srv_max_reply_size);
+	rs->rs_size = svcpt->scp_service->srv_max_reply_size;
 	rs->rs_svcpt = svcpt;
 	rs->rs_prealloc = 1;
 out:
diff --git a/drivers/staging/lustre/lustre/ptlrpc/sec.c b/drivers/staging/lustre/lustre/ptlrpc/sec.c
index b0a1c5a0d5cc803e45526033c0689d8a5f236d1f..5e7539292f5eb8d873ad29f3c23e3b645617b451 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/sec.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/sec.c
@@ -2086,8 +2086,18 @@ int sptlrpc_svc_alloc_rs(struct ptlrpc_request *req, int msglen)
 
 	rc = policy->sp_sops->alloc_rs(req, msglen);
 	if (unlikely(rc == -ENOMEM)) {
+		struct ptlrpc_service_part *svcpt = req->rq_rqbd->rqbd_svcpt;
+		if (svcpt->scp_service->srv_max_reply_size <
+		   msglen + sizeof(struct ptlrpc_reply_state)) {
+			/* Just return failure if the size is too big */
+			CERROR("size of message is too big (%zd), %d allowed",
+				msglen + sizeof(struct ptlrpc_reply_state),
+				svcpt->scp_service->srv_max_reply_size);
+			return -ENOMEM;
+		}
+
 		/* failed alloc, try emergency pool */
-		rs = lustre_get_emerg_rs(req->rq_rqbd->rqbd_svcpt);
+		rs = lustre_get_emerg_rs(svcpt);
 		if (rs == NULL)
 			return -ENOMEM;