Memory Leak in bytes_to_hexstring Function

Overview The function` bytes_to_hexstring` located in the `utils.c` file has a confirmed memory leak vulnerability. This function is responsible for converting an array of bytes into a hexadecimal string representation. However, it allocates memory dynamically using `malloc` without any error …

char* bytes_to_hexstring(uint8_t* bytes, size_t len)
{
    const char* hexdigs = "0123456789abcdef";
    size_t k = len * 2 + 1;
    char* out = malloc(k);
    for (int i = 0; i < len; i++)
    {
        out[i * 2] = hexdigs[bytes[i] >> 4];
        out[i * 2 + 1] = hexdigs[bytes[i] & 0x0f];
    } …