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Bug #64611 Segfault using ODBC with SQL Server "Native Client"
Submitted: 2013-04-08 14:54 UTC Modified: 2013-04-09 02:56 UTC
From: brandonkirsch at gmail dot com Assigned:
Status: Duplicate Package: ODBC related
PHP Version: 5.5.0beta1 OS: Linux - OpenSuse 12.2 64-bit
Private report: No CVE-ID: None
 [2013-04-08 14:54 UTC] brandonkirsch at gmail dot com
A segfault has existed in PHP since at least 5.2.17 when using ODBC with SQL Server Native Client driver.

Selecting NULL values in a computed expression causes the segfault.

I created a patch for this over a year ago and submitted the pull request here:

The pull request has not been accepted, so the segfault still exists even in 5.5.0beta2.

Test script:

$conn = odbc_connect('Driver=SQL Server Native Client 11.0;server=xxx;uid=xxx;pwd=xxx;Database=xxx','','');

$query = odbc_exec($conn, 'select null');

$segfault = odbc_fetch_array($query); // segfault

Expected result:
odbc_fetch_array to return a result rather than segfault.

Actual result:


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 [2013-04-09 02:56 UTC]
dup to #61387
 [2013-04-09 02:56 UTC]
-Status: Open +Status: Duplicate
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