diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index 1b453629b516..93534dcc66c9 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -1167,6 +1167,16 @@ int iscsit_setup_scsi_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
 
 	target_get_sess_cmd(&cmd->se_cmd, true);
 
+	cmd->sense_reason = target_cmd_init_cdb(&cmd->se_cmd, hdr->cdb);
+	if (cmd->sense_reason) {
+		if (cmd->sense_reason == TCM_OUT_OF_RESOURCES) {
+			return iscsit_add_reject_cmd(cmd,
+				ISCSI_REASON_BOOKMARK_NO_RESOURCES, buf);
+		}
+
+		goto attach_cmd;
+	}
+
 	cmd->sense_reason = transport_lookup_cmd_lun(&cmd->se_cmd);
 	if (cmd->sense_reason)
 		goto attach_cmd;
@@ -1174,14 +1184,8 @@ int iscsit_setup_scsi_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
 	/* only used for printks or comparing with ->ref_task_tag */
 	cmd->se_cmd.tag = (__force u32)cmd->init_task_tag;
 	cmd->sense_reason = target_setup_cmd_from_cdb(&cmd->se_cmd, hdr->cdb);
-	if (cmd->sense_reason) {
-		if (cmd->sense_reason == TCM_OUT_OF_RESOURCES) {
-			return iscsit_add_reject_cmd(cmd,
-					ISCSI_REASON_BOOKMARK_NO_RESOURCES, buf);
-		}
-
+	if (cmd->sense_reason)
 		goto attach_cmd;
-	}
 
 	if (iscsit_build_pdu_and_seq_lists(cmd, payload_length) < 0) {
 		return iscsit_add_reject_cmd(cmd,
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index 7ea77933e64d..0fbb38254535 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -1413,6 +1413,9 @@ void transport_init_se_cmd(
 sense_reason_t
 target_cmd_init_cdb(struct se_cmd *cmd, unsigned char *cdb)
 {
+	sense_reason_t ret;
+
+	cmd->t_task_cdb = &cmd->__t_task_cdb[0];
 	/*
 	 * Ensure that the received CDB is less than the max (252 + 8) bytes
 	 * for VARIABLE_LENGTH_CMD
@@ -1421,7 +1424,8 @@ void transport_init_se_cmd(
 		pr_err("Received SCSI CDB with command_size: %d that"
 			" exceeds SCSI_MAX_VARLEN_CDB_SIZE: %d\n",
 			scsi_command_size(cdb), SCSI_MAX_VARLEN_CDB_SIZE);
-		return TCM_INVALID_CDB_FIELD;
+		ret = TCM_INVALID_CDB_FIELD;
+		goto err;
 	}
 	/*
 	 * If the received CDB is larger than TCM_MAX_COMMAND_SIZE,
@@ -1436,10 +1440,10 @@ void transport_init_se_cmd(
 				" %u > sizeof(cmd->__t_task_cdb): %lu ops\n",
 				scsi_command_size(cdb),
 				(unsigned long)sizeof(cmd->__t_task_cdb));
-			return TCM_OUT_OF_RESOURCES;
+			ret = TCM_OUT_OF_RESOURCES;
+			goto err;
 		}
-	} else
-		cmd->t_task_cdb = &cmd->__t_task_cdb[0];
+	}
 	/*
 	 * Copy the original CDB into cmd->
 	 */
@@ -1447,6 +1451,15 @@ void transport_init_se_cmd(
 
 	trace_target_sequencer_start(cmd);
 	return 0;
+
+err:
+	/*
+	 * Copy the CDB here to allow trace_target_cmd_complete() to
+	 * print the cdb to the trace buffers.
+	 */
+	memcpy(cmd->t_task_cdb, cdb, min(scsi_command_size(cdb),
+					 (unsigned int)TCM_MAX_COMMAND_SIZE));
+	return ret;
 }
 EXPORT_SYMBOL(target_cmd_init_cdb);
 
@@ -1456,8 +1469,6 @@ void transport_init_se_cmd(
 	struct se_device *dev = cmd->se_dev;
 	sense_reason_t ret;
 
-	target_cmd_init_cdb(cmd, cdb);
-
 	ret = dev->transport->parse_cdb(cmd);
 	if (ret == TCM_UNSUPPORTED_SCSI_OPCODE)
 		pr_warn_ratelimited("%s/%s: Unsupported SCSI Opcode 0x%02x, sending CHECK_CONDITION.\n",
@@ -1621,6 +1632,14 @@ int target_submit_cmd_map_sgls(struct se_cmd *se_cmd, struct se_session *se_sess
 	 */
 	if (flags & TARGET_SCF_BIDI_OP)
 		se_cmd->se_cmd_flags |= SCF_BIDI;
+
+	rc = target_cmd_init_cdb(se_cmd, cdb);
+	if (rc) {
+		transport_send_check_condition_and_sense(se_cmd, rc, 0);
+		target_put_sess_cmd(se_cmd);
+		return 0;
+	}
+
 	/*
 	 * Locate se_lun pointer and attach it to struct se_cmd
 	 */
diff --git a/drivers/target/target_core_xcopy.c b/drivers/target/target_core_xcopy.c
index 5f1bab37a6bf..7f9c93b5cba6 100644
--- a/drivers/target/target_core_xcopy.c
+++ b/drivers/target/target_core_xcopy.c
@@ -526,6 +526,9 @@ static int target_xcopy_setup_pt_cmd(
 	}
 	cmd->se_cmd_flags |= SCF_SE_LUN_CMD;
 
+	if (target_cmd_init_cdb(cmd, cdb))
+		return -EINVAL;
+
 	cmd->tag = 0;
 	if (target_setup_cmd_from_cdb(cmd, cdb))
 		return -EINVAL;
