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[2014-03-22 21:28 UTC] chuanm at gmail dot com
Description: ------------ ### Compiled with: ./confgiure --with-openssl --with-openssl-dir=/usr/lib64/openssl ### create keys openssl genrsa -out privkey.pem 2048 openssl rsa -pubout -in privkey.pem -out pubkey.pem Test script: --------------- <?php $data = 'this is test'; $cert = <<<ABC -----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA01/7gxSlhLff2iKBNBIA N77U+cdLl2g/YaJNjp4TQI33QY+P5VtP7coBxY2KyfhZAValyGmCzugSt4IlG/Jd 5FT+JSosUbbKSuSs4lia8mge0h7V5ius5ZvWTIqxtMtoxx36HLoaj4KQ32ToZjYM /wI2ZMW9KD8WTFdezW7IKzc89DJ3AaoZaobRvUOjZVg8giLvsAFk4T3oWPS37Zed uE4LkFdTnLxQ5y1rFWELpqm7E2itB+nLxHEq1Sb1w22iyXGqQSmaXC/b4SmjDLVw W1lPjmYJt4NGNTgi3EAGWpCHnn9z1ERcOYX8lg+vTGftvejDgv/zvAuoWKiUO9lk ywIDAQAB -----END PUBLIC KEY----- ABC; $pk1 = openssl_get_publickey($cert); openssl_seal($data, $sealed, $ekeys, array($pk1)); Expected result: ---------------- valgrind run should not complain about memory leak. Actual result: -------------- bash-4.1# valgrind --leak-check=full php openssl.php ==25769== Memcheck, a memory error detector ==25769== Copyright (C) 2002-2012, and GNU GPL'd, by Julian Seward et al. ==25769== Using Valgrind-3.8.1 and LibVEX; rerun with -h for copyright info ==25769== Command: php openssl.php ==25769== ==25769== ==25769== HEAP SUMMARY: ==25769== in use at exit: 84,649 bytes in 2,704 blocks ==25769== total heap usage: 15,468 allocs, 12,764 frees, 3,234,966 bytes allocated ==25769== ==25769== 1,032 bytes in 1 blocks are definitely lost in loss record 64 of 87 ==25769== at 0x4C279EE: malloc (vg_replace_malloc.c:270) ==25769== by 0x614AB2D: CRYPTO_malloc (in /usr/lib64/libcrypto.so.1.0.1e) ==25769== by 0x61CA808: EVP_CipherInit_ex (in /usr/lib64/libcrypto.so.1.0.1e) ==25769== by 0x45E46B: zif_openssl_seal (openssl.c:4318) ==25769== by 0x6FD7A9: zend_do_fcall_common_helper_SPEC (zend_vm_execute.h:643) ==25769== by 0x6F1BAF: execute (zend_vm_execute.h:410) ==25769== by 0x68BD4D: zend_execute_scripts (zend.c:1315) ==25769== by 0x631BED: php_execute_script (main.c:2502) ==25769== by 0x7320D2: do_cli (php_cli.c:989) ==25769== by 0x7327C3: main (php_cli.c:1365) ==25769== ==25769== 1,032 bytes in 1 blocks are definitely lost in loss record 65 of 87 ==25769== at 0x4C279EE: malloc (vg_replace_malloc.c:270) ==25769== by 0x614AB2D: CRYPTO_malloc (in /usr/lib64/libcrypto.so.1.0.1e) ==25769== by 0x61CA808: EVP_CipherInit_ex (in /usr/lib64/libcrypto.so.1.0.1e) ==25769== by 0x61D0B7C: EVP_SealInit (in /usr/lib64/libcrypto.so.1.0.1e) ==25769== by 0x45E58D: zif_openssl_seal (openssl.c:4331) ==25769== by 0x6FD7A9: zend_do_fcall_common_helper_SPEC (zend_vm_execute.h:643) ==25769== by 0x6F1BAF: execute (zend_vm_execute.h:410) ==25769== by 0x68BD4D: zend_execute_scripts (zend.c:1315) ==25769== by 0x631BED: php_execute_script (main.c:2502) ==25769== by 0x7320D2: do_cli (php_cli.c:989) ==25769== by 0x7327C3: main (php_cli.c:1365) ==25769== ==25769== LEAK SUMMARY: ==25769== definitely lost: 2,064 bytes in 2 blocks ==25769== indirectly lost: 0 bytes in 0 blocks ==25769== possibly lost: 0 bytes in 0 blocks ==25769== still reachable: 82,585 bytes in 2,702 blocks ==25769== suppressed: 0 bytes in 0 blocks ==25769== Reachable blocks (those to which a pointer was found) are not shown. ==25769== To see them, rerun with: --leak-check=full --show-reachable=yes ==25769== ==25769== For counts of detected and suppressed errors, rerun with: -v ==25769== ERROR SUMMARY: 2 errors from 2 contexts (suppressed: 6 from 6) PatchesPull Requests
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Last updated: Mon Oct 27 08:00:01 2025 UTC |
In ext/openssl/openssl.c, adding EVP_CIPHER_CTX_cleanup(&ctx); at the end of the openssl_seal() function only removes one block of the memory leak. The following block still remains: ==30008== ==30008== HEAP SUMMARY: ==30008== in use at exit: 83,617 bytes in 2,703 blocks ==30008== total heap usage: 15,469 allocs, 12,766 frees, 3,235,070 bytes allocated ==30008== ==30008== 1,032 bytes in 1 blocks are definitely lost in loss record 64 of 86 ==30008== at 0x4C279EE: malloc (vg_replace_malloc.c:270) ==30008== by 0x614AB2D: CRYPTO_malloc (in /usr/lib64/libcrypto.so.1.0.1e) ==30008== by 0x61CA808: EVP_CipherInit_ex (in /usr/lib64/libcrypto.so.1.0.1e) ==30008== by 0x45E50B: zif_openssl_seal (openssl.c:4318) ==30008== by 0x6FD4C9: zend_do_fcall_common_helper_SPEC (zend_vm_execute.h:643) ==30008== by 0x6F18CF: execute (zend_vm_execute.h:410) ==30008== by 0x68BA6D: zend_execute_scripts (zend.c:1315) ==30008== by 0x63190D: php_execute_script (main.c:2502) ==30008== by 0x731DF2: do_cli (php_cli.c:989) ==30008== by 0x7324E3: main (php_cli.c:1365) ==30008== ==30008== LEAK SUMMARY: ==30008== definitely lost: 1,032 bytes in 1 blocks ==30008== indirectly lost: 0 bytes in 0 blocks ==30008== possibly lost: 0 bytes in 0 blocks ==30008== still reachable: 82,585 bytes in 2,702 blocks ==30008== suppressed: 0 bytes in 0 blocks ==30008== Reachable blocks (those to which a pointer was found) are not shown. ==30008== To see them, rerun with: --leak-check=full --show-reachable=yes ==30008== ==30008== For counts of detected and suppressed errors, rerun with: -v ==30008== ERROR SUMMARY: 1 errors from 1 contexts (suppressed: 6 from 6)