static u32 Mmcop3(dpbStorage_t *dpb, u32 currPicNum, u32 differenceOfPicNums,
    u32 longTermFrameIdx)
{

/* Variables */

    i32 index, picNum;
    u32 i;

/* Code */

    ASSERT(dpb);
    ASSERT(currPicNum < dpb->maxFrameNum);

 if ( (dpb->maxLongTermFrameIdx == NO_LONG_TERM_FRAME_INDICES) ||
 (longTermFrameIdx > dpb->maxLongTermFrameIdx) )
 return(HANTRO_NOK);

 /* check if a long term picture with the same longTermFrameIdx already
     * exist and remove it if necessary */
 for (i = 0; i < dpb->maxRefFrames; i++)
 if (IS_LONG_TERM(dpb->buffer[i]) &&
 (u32)dpb->buffer[i].picNum == longTermFrameIdx)
 {
            SET_UNUSED(dpb->buffer[i]);
            dpb->numRefFrames--;
 if (!dpb->buffer[i].toBeDisplayed)
                dpb->fullness--;
 break;
 }

    picNum = (i32)currPicNum - (i32)differenceOfPicNums;

    index = FindDpbPic(dpb, picNum, HANTRO_TRUE);
 if (index < 0)
 return(HANTRO_NOK);
 if (!IS_EXISTING(dpb->buffer[index]))
 return(HANTRO_NOK);

    dpb->buffer[index].status = LONG_TERM;
    dpb->buffer[index].picNum = (i32)longTermFrameIdx;

 return(HANTRO_OK);

}

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.