static uint32_t color_string_to_rgba(const char *p, int len)
{
    uint32_t ret = 0xFF000000;
     const ColorEntry *entry;
     char color_name[100];
 
    len = FFMIN(FFMAX(len, 0), sizeof(color_name) - 1);

     if (*p == '#') {
         p++;
         len--;
        if (len == 3) {
            ret |= (hex_char_to_number(p[2]) <<  4) |
                   (hex_char_to_number(p[1]) << 12) |
                   (hex_char_to_number(p[0]) << 20);
        } else if (len == 4) {
            ret  = (hex_char_to_number(p[3]) <<  4) |
                   (hex_char_to_number(p[2]) << 12) |
                   (hex_char_to_number(p[1]) << 20) |
                   (hex_char_to_number(p[0]) << 28);
        } else if (len == 6) {
            ret |=  hex_char_to_number(p[5])        |
                   (hex_char_to_number(p[4]) <<  4) |
                   (hex_char_to_number(p[3]) <<  8) |
                   (hex_char_to_number(p[2]) << 12) |
                   (hex_char_to_number(p[1]) << 16) |
                   (hex_char_to_number(p[0]) << 20);
        } else if (len == 8) {
            ret  =  hex_char_to_number(p[7])        |
                   (hex_char_to_number(p[6]) <<  4) |
                   (hex_char_to_number(p[5]) <<  8) |
                   (hex_char_to_number(p[4]) << 12) |
                   (hex_char_to_number(p[3]) << 16) |
                   (hex_char_to_number(p[2]) << 20) |
                   (hex_char_to_number(p[1]) << 24) |
                   (hex_char_to_number(p[0]) << 28);
        }
    } else {
        strncpy(color_name, p, len);
        color_name[len] = '\0';

        entry = bsearch(color_name,
                        color_table,
                        FF_ARRAY_ELEMS(color_table),
                        sizeof(ColorEntry),
                        color_table_compare);

        if (!entry)
            return ret;

        ret = entry->rgb_color;
    }
    return ret;
}

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.