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Subject: [libssh2] #299: Second memory leak

[libssh2] #299: Second memory leak

From: libssh2 Trac <trac_at_libssh2.stuge.se>
Date: Wed, 01 Apr 2015 09:49:02 -0000

#299: Second memory leak
--------------------+--------------------
 Reporter: double | Owner:
     Type: defect | Status: new
 Priority: normal | Milestone: 1.4.3
Component: crypto | Version: 1.4.2
 Keywords: | Blocked By:
   Blocks: |
--------------------+--------------------
 Valgrind output:

 =3020== 24 bytes in 1 blocks are still reachable in loss record 1 of 6
 ==3020== at 0x4C2AB80: malloc (in /usr/lib/valgrind/vgpreload_memcheck-
 amd64-linux.so)
 ==3020== by 0x80DED72: CRYPTO_malloc (in /lib/x86_64-linux-
 gnu/libcrypto.so.1.0.0)
 ==3020== by 0x80E00E5: ??? (in /lib/x86_64-linux-
 gnu/libcrypto.so.1.0.0)
 ==3020== by 0x80E0A8A: ??? (in /lib/x86_64-linux-
 gnu/libcrypto.so.1.0.0)
 ==3020== by 0x8147926: RSA_new_method (in /lib/x86_64-linux-
 gnu/libcrypto.so.1.0.0)
 ==3020== by 0x5CADD56: _libssh2_rsa_new (openssl.c:69)
 ==3020== by 0x5C99785: hostkey_method_ssh_rsa_init (hostkey.c:95)
 ==3020== by 0x5C99E4E: diffie_hellman_sha1 (kex.c:267)
 ==3020== by 0x5C9B2A6:
 kex_method_diffie_hellman_group14_sha1_key_exchange (kex.c:799)
 ==3020== by 0x5C9BD89: _libssh2_kex_exchange (kex.c:1770)
 ==3020== by 0x5CA2756: libssh2_session_handshake (session.c:723)
 ==3020== by 0x912119: ssh2_connect() (ssh.c:612)
 ==3020==
 ==3020== 24 bytes in 1 blocks are still reachable in loss record 2 of 6
 ==3020== at 0x4C2AB80: malloc (in /usr/lib/valgrind/vgpreload_memcheck-
 amd64-linux.so)
 ==3020== by 0x80DED72: CRYPTO_malloc (in /lib/x86_64-linux-
 gnu/libcrypto.so.1.0.0)
 ==3020== by 0x8164C7A: lh_insert (in /lib/x86_64-linux-
 gnu/libcrypto.so.1.0.0)
 ==3020== by 0x80E0113: ??? (in /lib/x86_64-linux-
 gnu/libcrypto.so.1.0.0)
 ==3020== by 0x80E0A8A: ??? (in /lib/x86_64-linux-
 gnu/libcrypto.so.1.0.0)
 ==3020== by 0x8147926: RSA_new_method (in /lib/x86_64-linux-
 gnu/libcrypto.so.1.0.0)
 ==3020== by 0x5CADD56: _libssh2_rsa_new (openssl.c:69)
 ==3020== by 0x5C99785: hostkey_method_ssh_rsa_init (hostkey.c:95)
 ==3020== by 0x5C99E4E: diffie_hellman_sha1 (kex.c:267)
 ==3020== by 0x5C9B2A6:
 kex_method_diffie_hellman_group14_sha1_key_exchange (kex.c:799)
 ==3020== by 0x5C9BD89: _libssh2_kex_exchange (kex.c:1770)
 ==3020== by 0x5CA2756: libssh2_session_handshake (session.c:723)
 ==3020==
 ==3020== 32 bytes in 1 blocks are still reachable in loss record 3 of 6
 ==3020== at 0x4C2AB80: malloc (in /usr/lib/valgrind/vgpreload_memcheck-
 amd64-linux.so)
 ==3020== by 0x80DED72: CRYPTO_malloc (in /lib/x86_64-linux-
 gnu/libcrypto.so.1.0.0)
 ==3020== by 0x816426E: sk_new (in /lib/x86_64-linux-
 gnu/libcrypto.so.1.0.0)
 ==3020== by 0x80E00FB: ??? (in /lib/x86_64-linux-
 gnu/libcrypto.so.1.0.0)
 ==3020== by 0x80E0A8A: ??? (in /lib/x86_64-linux-
 gnu/libcrypto.so.1.0.0)
 ==3020== by 0x8147926: RSA_new_method (in /lib/x86_64-linux-
 gnu/libcrypto.so.1.0.0)
 ==3020== by 0x5CADD56: _libssh2_rsa_new (openssl.c:69)
 ==3020== by 0x5C99785: hostkey_method_ssh_rsa_init (hostkey.c:95)
 ==3020== by 0x5C99E4E: diffie_hellman_sha1 (kex.c:267)
 ==3020== by 0x5C9B2A6:
 kex_method_diffie_hellman_group14_sha1_key_exchange (kex.c:799)
 ==3020== by 0x5C9BD89: _libssh2_kex_exchange (kex.c:1770)
 ==3020== by 0x5CA2756: libssh2_session_handshake (session.c:723)
 ==3020==
 ==3020== 32 bytes in 1 blocks are still reachable in loss record 4 of 6
 ==3020== at 0x4C2AB80: malloc (in /usr/lib/valgrind/vgpreload_memcheck-
 amd64-linux.so)
 ==3020== by 0x80DED72: CRYPTO_malloc (in /lib/x86_64-linux-
 gnu/libcrypto.so.1.0.0)
 ==3020== by 0x816428C: sk_new (in /lib/x86_64-linux-
 gnu/libcrypto.so.1.0.0)
 ==3020== by 0x80E00FB: ??? (in /lib/x86_64-linux-
 gnu/libcrypto.so.1.0.0)
 ==3020== by 0x80E0A8A: ??? (in /lib/x86_64-linux-
 gnu/libcrypto.so.1.0.0)
 ==3020== by 0x8147926: RSA_new_method (in /lib/x86_64-linux-
 gnu/libcrypto.so.1.0.0)
 ==3020== by 0x5CADD56: _libssh2_rsa_new (openssl.c:69)
 ==3020== by 0x5C99785: hostkey_method_ssh_rsa_init (hostkey.c:95)
 ==3020== by 0x5C99E4E: diffie_hellman_sha1 (kex.c:267)
 ==3020== by 0x5C9B2A6:
 kex_method_diffie_hellman_group14_sha1_key_exchange (kex.c:799)
 ==3020== by 0x5C9BD89: _libssh2_kex_exchange (kex.c:1770)
 ==3020== by 0x5CA2756: libssh2_session_handshake (session.c:723)
 ==3020==
 ==3020== 128 bytes in 1 blocks are still reachable in loss record 5 of 6
 ==3020== at 0x4C2AB80: malloc (in /usr/lib/valgrind/vgpreload_memcheck-
 amd64-linux.so)
 ==3020== by 0x80DED72: CRYPTO_malloc (in /lib/x86_64-linux-
 gnu/libcrypto.so.1.0.0)
 ==3020== by 0x8164961: lh_new (in /lib/x86_64-linux-
 gnu/libcrypto.so.1.0.0)
 ==3020== by 0x80E0034: ??? (in /lib/x86_64-linux-
 gnu/libcrypto.so.1.0.0)
 ==3020== by 0x80E00C4: ??? (in /lib/x86_64-linux-
 gnu/libcrypto.so.1.0.0)
 ==3020== by 0x80E0A8A: ??? (in /lib/x86_64-linux-
 gnu/libcrypto.so.1.0.0)
 ==3020== by 0x8147926: RSA_new_method (in /lib/x86_64-linux-
 gnu/libcrypto.so.1.0.0)
 ==3020== by 0x5CADD56: _libssh2_rsa_new (openssl.c:69)
 ==3020== by 0x5C99785: hostkey_method_ssh_rsa_init (hostkey.c:95)
 ==3020== by 0x5C99E4E: diffie_hellman_sha1 (kex.c:267)
 ==3020== by 0x5C9B2A6:
 kex_method_diffie_hellman_group14_sha1_key_exchange (kex.c:799)
 ==3020== by 0x5C9BD89: _libssh2_kex_exchange (kex.c:1770)
 ==3020==
 ==3020== 176 bytes in 1 blocks are still reachable in loss record 6 of 6
 ==3020== at 0x4C2AB80: malloc (in /usr/lib/valgrind/vgpreload_memcheck-
 amd64-linux.so)
 ==3020== by 0x80DED72: CRYPTO_malloc (in /lib/x86_64-linux-
 gnu/libcrypto.so.1.0.0)
 ==3020== by 0x816493F: lh_new (in /lib/x86_64-linux-
 gnu/libcrypto.so.1.0.0)
 ==3020== by 0x80E0034: ??? (in /lib/x86_64-linux-
 gnu/libcrypto.so.1.0.0)
 ==3020== by 0x80E00C4: ??? (in /lib/x86_64-linux-
 gnu/libcrypto.so.1.0.0)
 ==3020== by 0x80E0A8A: ??? (in /lib/x86_64-linux-
 gnu/libcrypto.so.1.0.0)
 ==3020== by 0x8147926: RSA_new_method (in /lib/x86_64-linux-
 gnu/libcrypto.so.1.0.0)
 ==3020== by 0x5CADD56: _libssh2_rsa_new (openssl.c:69)
 ==3020== by 0x5C99785: hostkey_method_ssh_rsa_init (hostkey.c:95)
 ==3020== by 0x5C99E4E: diffie_hellman_sha1 (kex.c:267)
 ==3020== by 0x5C9B2A6:
 kex_method_diffie_hellman_group14_sha1_key_exchange (kex.c:799)
 ==3020== by 0x5C9BD89: _libssh2_kex_exchange (kex.c:1770)
 ==3020==
 ==3020== LEAK SUMMARY:
 ==3020== definitely lost: 0 bytes in 0 blocks
 ==3020== indirectly lost: 0 bytes in 0 blocks
 ==3020== possibly lost: 0 bytes in 0 blocks
 ==3020== still reachable: 416 bytes in 6 blocks
 ==3020== suppressed: 0 bytes in 0 blocks
 ==3020==
 ==3020== For counts of detected and suppressed errors, rerun with: -v
 ==3020== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)

-- 
Ticket URL: <https://trac.libssh2.org/ticket/299>
libssh2 <https://trac.libssh2.org/>
C library for writing portable SSH2 clients
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libssh2-devel http://cool.haxx.se/cgi-bin/mailman/listinfo/libssh2-devel
Received on 2015-04-01

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