Bug #67919 [Opn->Fbk]: zend_mm_heap corrupted when a bound out parameter preset to a constant

From: Date: Tue, 07 Apr 2020 09:34:45 +0000
Subject: Bug #67919 [Opn->Fbk]: zend_mm_heap corrupted when a bound out parameter preset to a constant
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Edit report at https://bugs.php.net/bug.php?id=67919&edit=1 ID: 67919 Updated by: cmb@php.net Reported by: pm at datasphere dot ch Summary: zend_mm_heap corrupted when a bound out parameter preset to a constant -Status: Open +Status: Feedback Type: Bug Package: PDO ODBC Operating System: Linux PHP Version: 5.5.16 -Assigned To: +Assigned To: cmb Block user comment: N Private report: N New Comment: This issue appears is fixed as of PHP 7.0.0 (commit 8210b3b[1]). Or can you still reproduce it? [1] <http://git.php.net/?p=php-src.git;a=commit;h=8210b3b8c470ec91bee89bad4d34c482aab13406> Previous Comments: ------------------------------------------------------------------------ [2014-08-27 18:15:08] pm at datasphere dot ch Description: ------------ When a out/inout bound parameter is set to a string constant before executing a prepared executed statement, a call to erealloc() on it fails. Test script: --------------- <?php try { $conn = new PDO("odbc:<yourdatabaseDSN>"); } catch (PDOException $e) { print "Error!: " . $e->getMessage() . "\n"; die(); } /* Adjust the SQL statement below to your test environment. */ $stmt = $conn->prepare("CALL LIBRARY.GETDB(? , ?)"); $intvalue = 10; $strvalue = "abc"; $stmt->bindParam(1, $intvalue, PDO::PARAM_INT|PDO::PARAM_INPUT_OUTPUT, 4); $stmt->bindParam(2, $strvalue, PDO::PARAM_STR|PDO::PARAM_INPUT_OUTPUT, 100); print "before execute\n"; $res = $stmt->execute(); print "after execute\n"; var_dump($intvalue); var_dump($strvalue); ?> Expected result: ---------------- Proper execution and normal program exit Actual result: -------------- zend_mm_heap corrupted ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=67919&edit=1

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