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Bug #67919 zend_mm_heap corrupted when a bound out parameter preset to a constant
Submitted: 2014-08-27 18:15 UTC Modified: 2020-04-19 04:22 UTC
Avg. Score:3.5 ± 0.5
Reproduced:2 of 2 (100.0%)
Same Version:0 (0.0%)
Same OS:2 (100.0%)
From: pm at datasphere dot ch Assigned: cmb (profile)
Status: No Feedback Package: PDO ODBC
PHP Version: 5.5.16 OS: Linux
Private report: No CVE-ID: None
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 [2014-08-27 18:15 UTC] pm at datasphere dot ch
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:
	try {
		$conn = new PDO("odbc:<yourdatabaseDSN>");
	catch (PDOException $e) {
		print "Error!: " . $e->getMessage() . "\n";

	/* 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";


Expected result:
Proper execution and normal program exit

Actual result:
zend_mm_heap corrupted


pdorealloc (last revision 2014-08-27 18:18 UTC by pm at datasphere dot ch)

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 [2020-04-07 09:34 UTC]
-Status: Open +Status: Feedback -Assigned To: +Assigned To: cmb
 [2020-04-07 09:34 UTC]
This issue appears is fixed as of PHP 7.0.0 (commit 8210b3b[1]).
Or can you still reproduce it?

[1] <;a=commit;h=8210b3b8c470ec91bee89bad4d34c482aab13406>
 [2020-04-19 04:22 UTC] php-bugs at lists dot php dot net
No feedback was provided. The bug is being suspended because
we assume that you are no longer experiencing the problem.
If this is not the case and you are able to provide the
information that was requested earlier, please do so and
change the status of the bug back to "Re-Opened". Thank you.
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