Bug #71708 [NEW]: Oracle queries using oci_fetch_all causes Core Dumps

From: Date: Thu, 03 Mar 2016 20:21:11 +0000
Subject: Bug #71708 [NEW]: Oracle queries using oci_fetch_all causes Core Dumps
Groups: php.bugs 
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From: jodybrabec at gmail dot com Operating system: RHEL 6.7 PHP version: 7.0.4 Package: OCI8 related Bug Type: Bug Bug description:Oracle queries using oci_fetch_all causes Core Dumps Description: ------------ Oracle queries using oci_fetch_all causes Core Dumps sometimes if more than one record result set. My setup: oracle-instantclient12.1-basic, OCI8 2.1.0, PHP 70, php70-php-cli (7.0.4-1.el6.remi - 2016-03-02), Red Hat EL 6.7, HTTPD 24 Observations on oci_fetch_all queries: 1. If the query return set contains only one record, no problems. 2. For more than one records return: Sometimes causes core dump (browser Error 500 Internal server error). a. If total return bytes is large, core dump probability increases (possible cap on rows * bytes per record per clumn cell) b. Or sometimes error on only 2+ records - yet removing various columns reduces error probability. c. Queries with "joins" increase error probability. Test script: --------------- // Cor dumps on many random queries - see Observations above $statement= oci_parse($connID, $query); oci_execute($statement) // ================= BAD, CORE DUMP: $numRows = oci_fetch_all($statement, $results); Expected result: ---------------- yum php70-php-cli (remi) was updated last night, but still no work. POSSIBLE WORKAROUND: // *********** (THIS DOES NOT WORK RIGHT NOW!!!!) ********** $allCols = oci_num_fields($st); $colNames = array(); for ($i_c = 1; $i_c <= $allCols; $i_c++) { $aColName = oci_field_name($statement, $i_c); $colNames[] = $aColName; } $numRows = 0; while (($row = oci_fetch_array($statement, OCI_BOTH)) != false) { $numRows++; foreach ($colNames as $i_c=>$aColName) $results[$aColName][] = $row[$aColName]; } Actual result: -------------- //~~~~~~~~~~~~~~~~~~~ CORE DUMP #> tail /var/log/messages Mar 2 22:17:17 node6 abrtd: Directory 'ccpp-2016-03-02-22:17:17-32306' creation detected Mar 2 22:17:17 node6 abrt[32307]: Saved core dump of pid 32306 (/opt/remi/php70/root/usr/bin/php-cgi) to /var/spool/abrt/ccpp-2016-03-02-22:17:17-32306 (11370496 bytes) Mar 2 22:17:17 node6 abrtd: Package 'php70-php-cli' isn't signed with proper key Mar 2 22:17:17 node6 abrtd: 'post-create' on '/var/spool/abrt/ccpp-2016-03-02-22:17:17-32306' exited with 1 Mar 2 22:17:17 node6 abrtd: Deleting problem directory '/var/spool/abrt/ccpp-2016-03-02-22:17:17-32306' -- Edit bug report at https://bugs.php.net/bug.php?id=71708&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=71708&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=71708&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=71708&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=71708&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=71708&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=71708&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=71708&r=needscript Try newer version: https://bugs.php.net/fix.php?id=71708&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=71708&r=support Expected behavior: https://bugs.php.net/fix.php?id=71708&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=71708&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=71708&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=71708&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=71708&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=71708&r=dst IIS Stability: https://bugs.php.net/fix.php?id=71708&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=71708&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=71708&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=71708&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=71708&r=mysqlcfg

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