Bug #77207 [NEW]: openssl_pkey_get_private didn't free memory

From: sagaxu at qq dot com Operating system: PHP version: Irrelevant Package: OpenSSL related Bug Type: Bug Bug description:openssl_pkey_get_private didn't free memory Description: ------------ $ php -v PHP 7.2.11-3build2 (cli) (built: Nov 26 2018 13:08:29) ( NTS ) Copyright (c) 1997-2018 The PHP Group Zend Engine v3.2.0, Copyright (c) 1998-2018 Zend Technologies with Zend OPcache v7.2.11-3build2, Copyright (c) 1999-2018, by Zend Technologies with Xdebug v2.6.1, Copyright (c) 2002-2018, by Derick Rethans PHP 7.1.X and 7.2.X both affected. Test script: --------------- <?php error_reporting(E_ALL); ini_set('display_errors', 'stderr'); $pk = '-----BEGIN RSA PRIVATE KEY----- MIIEpAIBAAKCAQEAokB9srofHWSRuv0x679iYftvS0WBrTS0FvK/yzpdAodcNm5S SQ8YJqRv5o/YE/i+d49zMM92/Q7hTVnuaEpmYzsX34PvOKYW7LEuTYpa/QRQvcUJ p/vZ9sR3s7c/FoWrdzIl7kx/WYF53gEvQuHM/qbmRczZ6mdtGN01cYYPVm+oQaPQ E6r3aQzf+R4XkMFTfbT9iz8NWnPuo+GmGsVqGV1e8tALzybeWqQAwzf5g5sLIGb8 MXPx0dipM98hkw3XKO+sVwxYY5vVnskq05Jw74zZkr9k9vWZC7S80YJkrIzzZaJ4 yPtAdKCS1Nk+nnqVKA4POIZN2cEmO7lrUfb3TwIDAQABAoIBAH1krABpuUxFAh9q OJ+CfG1PHXcl049h0OB/YNyWUXV32TszzaIq6TZMFTMx7gOZVNIf6h1J6SKv0k2u eALfpPuBmvSiCUpVihgI4skIaUNrh17yHYFWsd/1fLFGqJomWhq3hfsB4dXxq5Z4 gecFjSEtKX++TpfKsNTreLcwrT/Vte1XLV3U10fLBZfTU26BQYQsgIBgCm96UsIu izJSv1fplenHRJM08WpLlx07g6Kk17b0qpD+VGFbCCRaO3YtLlHBB60kRQloqSDH sdycQAI6CZjtYL7x/6LwjH7n4U1haMMcCqDZdsemyz2Lnum4zkMgb4lxWHGu9kbE MtVJO1kCgYEA1ZKygrVHIi7PmLusxZEobqPNa7lBUaM5CORbSspjeC3AwPKDuhGK QU4DUFsrFWxxDcI5W3YBduWaYFAQlhaSeKDeJePCgkteXkFHAMd2Li8ogBse+MIF YynSXzxzmSRLeP4fUCZb03aNENSCnArh7G0vOLFfRkn3x+z0wxY5dDsCgYEAwnvY 4YC6fWymfl/Fw0SsE0TBHg9joXxiCuPsz/miYpmEyBPAZtsD/3o2REnu36ROOQ0a lIw8EAtQzS/K7UbPpMsAhSFaFyBLFIEP3GZxJB/iaXmIQ6s+JXNqGqoyy+PJiWII zFj9aLX47WPruOKJip8MLCzdzVMloF63q11Yu/0CgYEAy0nISuwcGmhuR9YT/TZP Qwj9phT/HKL9zf32+7ird6AtQjtUsU6yx7hnJRyyZMEE13DRQcKQYEjqadSsBQDV SKbu7SffZEAzQgpmeFJjplBS/6VRFL0xfZM4YFhdPB61DCTvT05Dx4OngKaW78rY A0BmW1NR+ci8Znug+vTzmTMCgYAaHUciAIcKEGzKy1FixvXUIIdN4gMey/TeQXyq 8Ho9gx+xPfW32fDPfTmMMeFBZm6aeof3Kl1mSh6vbptxAPEgz6FiPvg54rwyJKJc leTbVOyx/P+vFm9h1/2HVxM7DXsiV2eXCNv+E3E5bxFX4hNV6cVYqS2fRGro/c7r 07z2gQKBgQCtukjBH1l/zHyV3acr5zXhY416wvEMh3zfYWQYYwoUACOaUTlO4Fqz EsmRtC76Nc3zpLz3/dhMn9ywz7+HJqZs7hNTvU2vxEBAaCFYyzljaJA1EjIKQAdr jUfQ5aNvrj5lVBJ+iHbV5O/ktFHLcM8eVurZpDirshS2DFMkcrcLHg== -----END RSA PRIVATE KEY-----'; for ($i=0; $i<10; $i++) { for ($j=0; $j<10000; $j++) { $key = openssl_pkey_get_private($pk); openssl_pkey_free($key); } echo memory_get_usage() . "\n"; } Expected result: ---------------- 223840 223880 223880 223880 223880 223880 223880 223880 223880 223880 Actual result: -------------- 1167336 1931656 2171656 3460256 3700256 3940256 6277408 6517408 6757408 6997408 -- Edit bug report at https://bugs.php.net/bug.php?id=77207&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=77207&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=77207&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=77207&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=77207&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=77207&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=77207&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=77207&r=needscript Try newer version: https://bugs.php.net/fix.php?id=77207&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=77207&r=support Expected behavior: https://bugs.php.net/fix.php?id=77207&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=77207&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=77207&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=77207&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=77207&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=77207&r=dst IIS Stability: https://bugs.php.net/fix.php?id=77207&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=77207&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=77207&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=77207&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=77207&r=mysqlcfg