CVE-2021-44142-snippet-4.c

int ad_setdate(struct adouble *ad, unsigned int dateoff, uint32_t date) 
{ 
    bool xlate = (dateoff & AD_DATE_UNIX); 
    char *p = NULL; 
 
    p = ad_get_entry(ad, ADEID_FILEDATESI); 
    if (p == NULL) { 
        return -1; 
    } 
 
    dateoff &= AD_DATE_MASK; 
    if (xlate) { 
        date = AD_DATE_FROM_UNIX(date); 
    } 
 
    if (dateoff > AD_DATE_ACCESS) { 
        return -1; 
    } 
 
    memcpy(p + dateoff, &date, sizeof(date)); 	// overflow 3 bytes 
 
    return 0; 
}