static void iscsi_attach_aio_context(BlockDriverState *bs,
                                     AioContext *new_context)
{
    IscsiLun *iscsilun = bs->opaque;

    iscsilun->aio_context = new_context;
    iscsi_set_events(iscsilun);

    /* Set up a timer for sending out iSCSI NOPs */
    iscsilun->nop_timer = aio_timer_new(iscsilun->aio_context,
                                        QEMU_CLOCK_REALTIME, SCALE_MS,
                                        iscsi_nop_timed_event, iscsilun);
    timer_mod(iscsilun->nop_timer,
              qemu_clock_get_ms(QEMU_CLOCK_REALTIME) + NOP_INTERVAL);

    /* Set up a timer for periodic calls to iscsi_set_events and to
     * scan for command timeout */
    iscsilun->event_timer = aio_timer_new(iscsilun->aio_context,
                                          QEMU_CLOCK_REALTIME, SCALE_MS,
                                          iscsi_timed_check_events, iscsilun);
    timer_mod(iscsilun->event_timer,
              qemu_clock_get_ms(QEMU_CLOCK_REALTIME) + EVENT_INTERVAL);
}

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.