iscsi_co_generic_cb(struct iscsi_context *iscsi, int status,
                        void *command_data, void *opaque)
{
    struct IscsiTask *iTask = opaque;
    struct scsi_task *task = command_data;

    iTask->status = status;
    iTask->do_retry = 0;
    iTask->task = task;

    if (status != SCSI_STATUS_GOOD) {
        if (iTask->retries++ < ISCSI_CMD_RETRIES) {
            if (status == SCSI_STATUS_CHECK_CONDITION
                && task->sense.key == SCSI_SENSE_UNIT_ATTENTION) {
                error_report("iSCSI CheckCondition: %s",
                             iscsi_get_error(iscsi));
                iTask->do_retry = 1;
                goto out;
            }
            if (status == SCSI_STATUS_BUSY ||
                status == SCSI_STATUS_TIMEOUT ||
                status == SCSI_STATUS_TASK_SET_FULL) {
                unsigned retry_time =
                    exp_random(iscsi_retry_times[iTask->retries - 1]);
                if (status == SCSI_STATUS_TIMEOUT) {
                    /* make sure the request is rescheduled AFTER the
                     * reconnect is initiated */
                    retry_time = EVENT_INTERVAL * 2;
                    iTask->iscsilun->request_timed_out = true;
                }
                error_report("iSCSI Busy/TaskSetFull/TimeOut"
                             " (retry #%u in %u ms): %s",
                             iTask->retries, retry_time,
                             iscsi_get_error(iscsi));
                aio_timer_init(iTask->iscsilun->aio_context,
                               &iTask->retry_timer, QEMU_CLOCK_REALTIME,
                               SCALE_MS, iscsi_retry_timer_expired, iTask);
                timer_mod(&iTask->retry_timer,
                          qemu_clock_get_ms(QEMU_CLOCK_REALTIME) + retry_time);
                iTask->do_retry = 1;
                return;
            }
        }
        iTask->err_code = iscsi_translate_sense(&task->sense);
        error_report("iSCSI Failure: %s", iscsi_get_error(iscsi));
    }

out:
    if (iTask->co) {
        iTask->bh = aio_bh_new(iTask->iscsilun->aio_context,
                               iscsi_co_generic_bh_cb, iTask);
        qemu_bh_schedule(iTask->bh);
    } else {
        iTask->complete = 1;
    }
}

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.