1. Accueil
  2. Question et réponse
  3. Poco Chiffre fuite

Poco Chiffre fuite

2017-03-28 1 views
0

Je deviens fou et après avoir googlé sans réponse je vais essayer d'écrire ici. J'ai Ubuntu 16.04, GCC 5.4.0, Poco 1.7.8-all et OpenSSL 1.1.0e.Poco Chiffre fuite

et ces quelques lignes de code:

int main() 
{ 
    const std::string AES_NAME = "aes-128-cbc"; 
    Cipher::Ptr uptrCipher = CipherFactory::defaultFactory().createCipher(CipherKey(AES_NAME, "abcdef", "123456")); 
    std::string plainText = "This is my secret information"; 
    std::string encrypted = uptrCipher->encryptString(plainText, Cipher::ENC_BASE64); 
    return 0; 
}

Si je cours Valgrind je suis arrivé cette erreur (mes excuses pour le lengh):

valgrind --leak-check=full ./CipherTest 
==32223== Memcheck, a memory error detector 
==32223== Copyright (C) 2002-2015, and GNU GPL'd, by Julian Seward et al. 
==32223== Using Valgrind-3.11.0 and LibVEX; rerun with -h for copyright info 
==32223== Command: ./CipherTest 
==32223== 
==32223== Invalid free()/delete/delete[]/realloc() 
==32223== at 0x4C2F24B: operator delete(void*) (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) 
==32223== by 0x5A3F369: __cxa_finalize (cxa_finalize.c:56) 
==32223== by 0x687CAB2: ??? (in /usr/local/lib/libPocoFoundationd.so.48) 
==32223== by 0x4010C16: _dl_fini (dl-fini.c:235) 
==32223== by 0x5A3EFF7: __run_exit_handlers (exit.c:82) 
==32223== by 0x5A3F044: exit (exit.c:104) 
==32223== by 0x5A25836: (below main) (libc-start.c:325) 
==32223== Address 0x737a9d0 is 0 bytes inside a block of size 20 free'd 
==32223== at 0x4C2F24B: operator delete(void*) (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) 
==32223== by 0x5A3F369: __cxa_finalize (cxa_finalize.c:56) 
==32223== by 0x4ED7542: ??? (in /usr/local/lib/libPocoFoundation.so.48) 
==32223== by 0x4010C16: _dl_fini (dl-fini.c:235) 
==32223== by 0x5A3EFF7: __run_exit_handlers (exit.c:82) 
==32223== by 0x5A3F044: exit (exit.c:104) 
==32223== by 0x5A25836: (below main) (libc-start.c:325) 
==32223== Block was alloc'd at 
==32223== at 0x4C2E0EF: operator new(unsigned long) (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) 
==32223== by 0x4F69C0C: ??? (in /usr/local/lib/libPocoFoundation.so.48) 
==32223== by 0x4ED7212: ??? (in /usr/local/lib/libPocoFoundation.so.48) 
==32223== by 0x40104E9: call_init.part.0 (dl-init.c:72) 
==32223== by 0x40105FA: call_init (dl-init.c:30) 
==32223== by 0x40105FA: _dl_init (dl-init.c:120) 
==32223== by 0x4000CF9: ??? (in /lib/x86_64-linux-gnu/ld-2.23.so) 
==32223== 
==32223== 
==32223== HEAP SUMMARY: 
==32223==  in use at exit: 73,124 bytes in 13 blocks 
==32223== total heap usage: 3,914 allocs, 3,912 frees, 256,412 bytes allocated 
==32223== 
==32223== 18 bytes in 1 blocks are definitely lost in loss record 1 of 13 
==32223== at 0x4C2E0EF: operator new(unsigned long) (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) 
==32223== by 0x558EAEC: void std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_construct<char const*>(char const*, char const*, std::forward_iterator_tag) (in /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.21) 
==32223== by 0x558EC4B: std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(char const*, std::allocator<char> const&) (in /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.21) 
==32223== by 0x688F40D: __static_initialization_and_destruction_0(int, int) (DateTimeFormat.cpp:31) 
==32223== by 0x688FB4D: _GLOBAL__sub_I_DateTimeFormat.cpp (DateTimeFormat.cpp:63) 
==32223== by 0x40104E9: call_init.part.0 (dl-init.c:72) 
==32223== by 0x40105FA: call_init (dl-init.c:30) 
==32223== by 0x40105FA: _dl_init (dl-init.c:120) 
==32223== by 0x4000CF9: ??? (in /lib/x86_64-linux-gnu/ld-2.23.so) 
==32223== 
==32223== 20 bytes in 1 blocks are definitely lost in loss record 2 of 13 
==32223== at 0x4C2E0EF: operator new(unsigned long) (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) 
==32223== by 0x558EAEC: void std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_construct<char const*>(char const*, char const*, std::forward_iterator_tag) (in /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.21) 
==32223== by 0x558EC4B: std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(char const*, std::allocator<char> const&) (in /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.21) 
==32223== by 0x688F165: __static_initialization_and_destruction_0(int, int) (DateTimeFormat.cpp:23) 
==32223== by 0x688FB4D: _GLOBAL__sub_I_DateTimeFormat.cpp (DateTimeFormat.cpp:63) 
==32223== by 0x40104E9: call_init.part.0 (dl-init.c:72) 
==32223== by 0x40105FA: call_init (dl-init.c:30) 
==32223== by 0x40105FA: _dl_init (dl-init.c:120) 
==32223== by 0x4000CF9: ??? (in /lib/x86_64-linux-gnu/ld-2.23.so) 
==32223== 
==32223== 20 bytes in 1 blocks are definitely lost in loss record 3 of 13 
==32223== at 0x4C2E0EF: operator new(unsigned long) (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) 
==32223== by 0x558EAEC: void std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_construct<char const*>(char const*, char const*, std::forward_iterator_tag) (in /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.21) 
==32223== by 0x558EC4B: std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(char const*, std::allocator<char> const&) (in /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.21) 
==32223== by 0x688F1BA: __static_initialization_and_destruction_0(int, int) (DateTimeFormat.cpp:24) 
==32223== by 0x688FB4D: _GLOBAL__sub_I_DateTimeFormat.cpp (DateTimeFormat.cpp:63) 
==32223== by 0x40104E9: call_init.part.0 (dl-init.c:72) 
==32223== by 0x40105FA: call_init (dl-init.c:30) 
==32223== by 0x40105FA: _dl_init (dl-init.c:120) 
==32223== by 0x4000CF9: ??? (in /lib/x86_64-linux-gnu/ld-2.23.so) 
==32223== 
==32223== 20 bytes in 1 blocks are definitely lost in loss record 4 of 13 
==32223== at 0x4C2E0EF: operator new(unsigned long) (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) 
==32223== by 0x558EAEC: void std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_construct<char const*>(char const*, char const*, std::forward_iterator_tag) (in /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.21) 
==32223== by 0x558EC4B: std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(char const*, std::allocator<char> const&) (in /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.21) 
==32223== by 0x6942982: __static_initialization_and_destruction_0(int, int) (URI.cpp:32) 
==32223== by 0x6942A63: _GLOBAL__sub_I_URI.cpp (URI.cpp:915) 
==32223== by 0x40104E9: call_init.part.0 (dl-init.c:72) 
==32223== by 0x40105FA: call_init (dl-init.c:30) 
==32223== by 0x40105FA: _dl_init (dl-init.c:120) 
==32223== by 0x4000CF9: ??? (in /lib/x86_64-linux-gnu/ld-2.23.so) 
==32223== 
==32223== 21 bytes in 1 blocks are definitely lost in loss record 5 of 13 
==32223== at 0x4C2E0EF: operator new(unsigned long) (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) 
==32223== by 0x558EAEC: void std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_construct<char const*>(char const*, char const*, std::forward_iterator_tag) (in /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.21) 
==32223== by 0x558EC4B: std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(char const*, std::allocator<char> const&) (in /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.21) 
==32223== by 0x688F3B8: __static_initialization_and_destruction_0(int, int) (DateTimeFormat.cpp:30) 
==32223== by 0x688FB4D: _GLOBAL__sub_I_DateTimeFormat.cpp (DateTimeFormat.cpp:63) 
==32223== by 0x40104E9: call_init.part.0 (dl-init.c:72) 
==32223== by 0x40105FA: call_init (dl-init.c:30) 
==32223== by 0x40105FA: _dl_init (dl-init.c:120) 
==32223== by 0x4000CF9: ??? (in /lib/x86_64-linux-gnu/ld-2.23.so) 
==32223== 
==32223== 25 bytes in 1 blocks are definitely lost in loss record 6 of 13 
==32223== at 0x4C2E0EF: operator new(unsigned long) (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) 
==32223== by 0x558EAEC: void std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_construct<char const*>(char const*, char const*, std::forward_iterator_tag) (in /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.21) 
==32223== by 0x558EC4B: std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(char const*, std::allocator<char> const&) (in /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.21) 
==32223== by 0x688F20F: __static_initialization_and_destruction_0(int, int) (DateTimeFormat.cpp:25) 
==32223== by 0x688FB4D: _GLOBAL__sub_I_DateTimeFormat.cpp (DateTimeFormat.cpp:63) 
==32223== by 0x40104E9: call_init.part.0 (dl-init.c:72) 
==32223== by 0x40105FA: call_init (dl-init.c:30) 
==32223== by 0x40105FA: _dl_init (dl-init.c:120) 
==32223== by 0x4000CF9: ??? (in /lib/x86_64-linux-gnu/ld-2.23.so) 
==32223== 
==32223== 25 bytes in 1 blocks are definitely lost in loss record 7 of 13 
==32223== at 0x4C2E0EF: operator new(unsigned long) (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) 
==32223== by 0x558EAEC: void std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_construct<char const*>(char const*, char const*, std::forward_iterator_tag) (in /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.21) 
==32223== by 0x558EC4B: std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(char const*, std::allocator<char> const&) (in /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.21) 
==32223== by 0x688F264: __static_initialization_and_destruction_0(int, int) (DateTimeFormat.cpp:26) 
==32223== by 0x688FB4D: _GLOBAL__sub_I_DateTimeFormat.cpp (DateTimeFormat.cpp:63) 
==32223== by 0x40104E9: call_init.part.0 (dl-init.c:72) 
==32223== by 0x40105FA: call_init (dl-init.c:30) 
==32223== by 0x40105FA: _dl_init (dl-init.c:120) 
==32223== by 0x4000CF9: ??? (in /lib/x86_64-linux-gnu/ld-2.23.so) 
==32223== 
==32223== 25 bytes in 1 blocks are definitely lost in loss record 8 of 13 
==32223== at 0x4C2E0EF: operator new(unsigned long) (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) 
==32223== by 0x558EAEC: void std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_construct<char const*>(char const*, char const*, std::forward_iterator_tag) (in /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.21) 
==32223== by 0x558EC4B: std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(char const*, std::allocator<char> const&) (in /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.21) 
==32223== by 0x688F2B9: __static_initialization_and_destruction_0(int, int) (DateTimeFormat.cpp:27) 
==32223== by 0x688FB4D: _GLOBAL__sub_I_DateTimeFormat.cpp (DateTimeFormat.cpp:63) 
==32223== by 0x40104E9: call_init.part.0 (dl-init.c:72) 
==32223== by 0x40105FA: call_init (dl-init.c:30) 
==32223== by 0x40105FA: _dl_init (dl-init.c:120) 
==32223== by 0x4000CF9: ??? (in /lib/x86_64-linux-gnu/ld-2.23.so) 
==32223== 
==32223== 25 bytes in 1 blocks are definitely lost in loss record 9 of 13 
==32223== at 0x4C2E0EF: operator new(unsigned long) (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) 
==32223== by 0x558EAEC: void std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_construct<char const*>(char const*, char const*, std::forward_iterator_tag) (in /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.21) 
==32223== by 0x558EC4B: std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(char const*, std::allocator<char> const&) (in /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.21) 
==32223== by 0x688F30E: __static_initialization_and_destruction_0(int, int) (DateTimeFormat.cpp:28) 
==32223== by 0x688FB4D: _GLOBAL__sub_I_DateTimeFormat.cpp (DateTimeFormat.cpp:63) 
==32223== by 0x40104E9: call_init.part.0 (dl-init.c:72) 
==32223== by 0x40105FA: call_init (dl-init.c:30) 
==32223== by 0x40105FA: _dl_init (dl-init.c:120) 
==32223== by 0x4000CF9: ??? (in /lib/x86_64-linux-gnu/ld-2.23.so) 
==32223== 
==32223== 25 bytes in 1 blocks are definitely lost in loss record 10 of 13 
==32223== at 0x4C2E0EF: operator new(unsigned long) (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) 
==32223== by 0x558EAEC: void std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_construct<char const*>(char const*, char const*, std::forward_iterator_tag) (in /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.21) 
==32223== by 0x558EC4B: std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(char const*, std::allocator<char> const&) (in /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.21) 
==32223== by 0x688F363: __static_initialization_and_destruction_0(int, int) (DateTimeFormat.cpp:29) 
==32223== by 0x688FB4D: _GLOBAL__sub_I_DateTimeFormat.cpp (DateTimeFormat.cpp:63) 
==32223== by 0x40104E9: call_init.part.0 (dl-init.c:72) 
==32223== by 0x40105FA: call_init (dl-init.c:30) 
==32223== by 0x40105FA: _dl_init (dl-init.c:120) 
==32223== by 0x4000CF9: ??? (in /lib/x86_64-linux-gnu/ld-2.23.so) 
==32223== 
==32223== 28 bytes in 1 blocks are definitely lost in loss record 11 of 13 
==32223== at 0x4C2E0EF: operator new(unsigned long) (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) 
==32223== by 0x558EAEC: void std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_construct<char const*>(char const*, char const*, std::forward_iterator_tag) (in /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.21) 
==32223== by 0x558EC4B: std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(char const*, std::allocator<char> const&) (in /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.21) 
==32223== by 0x6918141: __static_initialization_and_destruction_0(int, int) (RotateStrategy.cpp:47) 
==32223== by 0x69181B7: _GLOBAL__sub_I_RotateStrategy.cpp (RotateStrategy.cpp:115) 
==32223== by 0x40104E9: call_init.part.0 (dl-init.c:72) 
==32223== by 0x40105FA: call_init (dl-init.c:30) 
==32223== by 0x40105FA: _dl_init (dl-init.c:120) 
==32223== by 0x4000CF9: ??? (in /lib/x86_64-linux-gnu/ld-2.23.so) 
==32223== 
==32223== 168 bytes in 1 blocks are definitely lost in loss record 12 of 13 
==32223== at 0x4C2DB8F: malloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) 
==32223== by 0x7038D9D: CRYPTO_zalloc (in /usr/local/lib/libcrypto.so.1.1) 
==32223== by 0x5253907: Poco::Crypto::(anonymous namespace)::CryptoTransformImpl::CryptoTransformImpl(evp_cipher_st const*, std::vector<unsigned char, std::allocator<unsigned char> > const&, std::vector<unsigned char, std::allocator<unsigned char> > const&, Poco::Crypto::(anonymous namespace)::CryptoTransformImpl::Direction) (CipherImpl.cpp:100) 
==32223== by 0x5253E6F: Poco::Crypto::CipherImpl::createEncryptor() (CipherImpl.cpp:218) 
==32223== by 0x5252ACA: Poco::Crypto::Cipher::encrypt(std::istream&, std::ostream&, Poco::Crypto::Cipher::Encoding) (Cipher.cpp:67) 
==32223== by 0x52528BB: Poco::Crypto::Cipher::encryptString(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, Poco::Crypto::Cipher::Encoding) (Cipher.cpp:49) 
==32223== by 0x4010FA: main (main.cpp:37) 
==32223== 
==32223== LEAK SUMMARY: 
==32223== definitely lost: 420 bytes in 12 blocks 
==32223== indirectly lost: 0 bytes in 0 blocks 
==32223==  possibly lost: 0 bytes in 0 blocks 
==32223== still reachable: 72,704 bytes in 1 blocks 
==32223==   suppressed: 0 bytes in 0 blocks 
==32223== Reachable blocks (those to which a pointer was found) are not shown. 
==32223== To see them, rerun with: --leak-check=full --show-leak-kinds=all 
==32223== 
==32223== For counts of detected and suppressed errors, rerun with: -v 
==32223== ERROR SUMMARY: 23 errors from 13 contexts (suppressed: 0 from 0)

Suite aux dernières déclarations du fond, je est allé dans le Cipher.cpp et CipherImp.cpp à la ligne # 100 j'ai découvert:

#if OPENSSL_VERSION_NUMBER >= 0x10100000L 
     _pContext = EVP_CIPHER_CTX_new();

Il semble que je s pas supprimé ... Je n'en ai aucune idée. Mais je suis sûr que je fais des erreurs.

Est-ce que quelqu'un a rencontré cette erreur? Où je me trompe dans le code?

Merci

Cristano

Source

2017-03-28 Chris

Répondre

0

J'ai trouvé la réponse.

Il semble qu'avec OpenSSL 1.1.0 la méthode pour libérer des ressources est EVP_CIPHER_CTX_free (ctx).

J'ai inclus le CipherImpl dans mon projet et a changé la ligne ci-dessous dans le distructor:

CryptoTransformImpl::~CryptoTransformImpl() 
    { 
#if OPENSSL_VERSION_NUMBER >= 0x10100000L 
     //IT WAS: EVP_CIPHER_CTX_cleanup(_pContext); 
     EVP_CIPHER_CTX_free(_pContext); 

#else 
     EVP_CIPHER_CTX_cleanup(&_context); 
#endif 
    }

Je couru à nouveau Valgrind:

valgrind --leak-check=full ./CipherTest 
==32869== Memcheck, a memory error detector 
==32869== Copyright (C) 2002-2015, and GNU GPL'd, by Julian Seward et al. 
==32869== Using Valgrind-3.11.0 and LibVEX; rerun with -h for copyright info 
==32869== Command: ./CipherTest 
==32869== 
Sono nel costruttore con Openssl v.269484127 
==32869== 
==32869== HEAP SUMMARY: 
==32869==  in use at exit: 72,704 bytes in 1 blocks 
==32869== total heap usage: 3,893 allocs, 3,892 frees, 253,681 bytes allocated 
==32869== 
==32869== LEAK SUMMARY: 
==32869== definitely lost: 0 bytes in 0 blocks 
==32869== indirectly lost: 0 bytes in 0 blocks 
==32869==  possibly lost: 0 bytes in 0 blocks 
==32869== still reachable: 72,704 bytes in 1 blocks 
==32869==   suppressed: 0 bytes in 0 blocks 
==32869== Reachable blocks (those to which a pointer was found) are not shown. 
==32869== To see them, rerun with: --leak-check=full --show-leak-kinds=all 
==32869== 
==32869== For counts of detected and suppressed errors, rerun with: -v 
==32869== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)

Source

2017-03-28 10:20:28 Chris

 Questions connexes

  • Aucun problème connexe^_^