OpenSSL EVP泄漏字节

Question

我正在使用OpenSSL's EVP routine并且无法消除所有仍可访问的内存。上面链接的教程泄漏了这么多：

==30413== LEAK SUMMARY:
==30413==    definitely lost: 0 bytes in 0 blocks
==30413==    indirectly lost: 0 bytes in 0 blocks
==30413==      possibly lost: 0 bytes in 0 blocks
==30413==    still reachable: 2,200 bytes in 27 blocks
==30413==         suppressed: 0 bytes in 0 blocks

并添加了答案here，我能够将其归结为：

==30437== LEAK SUMMARY:
==30437==    definitely lost: 0 bytes in 0 blocks
==30437==    indirectly lost: 0 bytes in 0 blocks
==30437==      possibly lost: 0 bytes in 0 blocks
==30437==    still reachable: 744 bytes in 13 blocks
==30437==         suppressed: 0 bytes in 0 blocks

有可能消除这些吗？这是我应该打扰的东西吗？

我在SO上看到了相互矛盾的答案，说明“仍然可以访问”的内存是内存泄漏而另一些人则说它不是，因此我感到困惑。