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Bug #36010 Crash when executing SQL statment with lob parameter after another SQL statment
Submitted: 2006-01-14 15:38 UTC Modified: 2006-02-04 12:37 UTC
Votes:2
Avg. Score:4.0 ± 0.0
Reproduced:2 of 2 (100.0%)
Same Version:1 (50.0%)
Same OS:0 (0.0%)
From: spatar at mail dot nnov dot ru Assigned: tony2001 (profile)
Status: Closed Package: OCI8 related
PHP Version: 5.1.2 OS: SuSE Linux 9.2 (i586)
Private report: No CVE-ID: None
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 [2006-01-14 15:38 UTC] spatar at mail dot nnov dot ru 
Description:
------------
OCI8 crashes in call "oci_execute" when executing some SQL statment with binded lob parameter after another SQL statment.
Previous version (PHP 5.1.1) doesn't produce this bug.

More details:
OS: SuSE Linux 9.2 (i586)
uname -a: Linux www 2.6.8-24-smp #1 SMP Wed Oct 6 09:16:23 UTC 2004 i686 i686 i386 GNU/Linux
Apache 2.2.0
Oracle 10.1.0.3.0
PHP 5.1.2

Reproduce code:
---------------
<?php
        function f($conn)
        {
                $sql =  "begin :p_clob := 'lob string'; end;";
                $stid = oci_parse($conn, $sql);
                $clob = oci_new_descriptor($conn, OCI_D_LOB);
                oci_bind_by_name($stid, ":p_clob", $clob, -1, OCI_B_CLOB);
                $r = oci_execute($stid, OCI_DEFAULT);
                if ($r)
                {
                        echo $clob->load(), "\n";
                }
                $clob->free();
                oci_free_statement($stid);
        }
        $conn = oci_connect("voip_dev", "9", "RS21");
        f($conn);
        f($conn);
        oci_close($conn);
?>

Expected result:
----------------
lob string
lob string

Actual result:
--------------
#0  0xb6cfdc73 in kpufGetRcvInfo () from /u01/app/oracle/OraHome2/lib/libclntsh.so.10.1
#1  0xb6f489b5 in ttcacr () from /u01/app/oracle/OraHome2/lib/libclntsh.so.10.1
#2  0xb6f4a807 in ttcdrv () from /u01/app/oracle/OraHome2/lib/libclntsh.so.10.1
#3  0xb6dec4ad in nioqwa () from /u01/app/oracle/OraHome2/lib/libclntsh.so.10.1
#4  0xb6c5e07e in upirtrc () from /u01/app/oracle/OraHome2/lib/libclntsh.so.10.1
#5  0xb6bf4d35 in kpurcsc () from /u01/app/oracle/OraHome2/lib/libclntsh.so.10.1
#6  0xb6bb1831 in kpuexecv8 () from /u01/app/oracle/OraHome2/lib/libclntsh.so.10.1
#7  0xb6bb33ac in kpuexec () from /u01/app/oracle/OraHome2/lib/libclntsh.so.10.1
#8  0xb6c27b86 in OCIStmtExecute () from /u01/app/oracle/OraHome2/lib/libclntsh.so.10.1
#9  0xb788ba64 in php_oci_statement_execute (statement=0x82f6c84, mode=137325732)
    at /home/spatar/mvtm-www/php-5.1.2/ext/oci8/oci8_statement.c:321
#10 0xb788fa7a in zif_oci_execute (ht=2, return_value=0xb640b02c, return_value_ptr=0x0, this_ptr=0x0,
    return_value_used=1) at /home/spatar/mvtm-www/php-5.1.2/ext/oci8/oci8_interface.c:1276
#11 0xb7a07d7b in zend_do_fcall_common_helper_SPEC (execute_data=0xbfffc240) at zend_vm_execute.h:192
#12 0xb7a56fbd in execute (op_array=0x82a6330) at zend_vm_execute.h:92
#13 0xb7a07836 in zend_do_fcall_common_helper_SPEC (execute_data=0xbfffc390) at zend_vm_execute.h:226
#14 0xb7a56fbd in execute (op_array=0x829df04) at zend_vm_execute.h:92
#15 0xb79eaf8f in zend_execute_scripts (type=8, retval=0x0, file_count=3)
    at /home/spatar/mvtm-www/php-5.1.2/Zend/zend.c:1101
#16 0xb79b01ae in php_execute_script (primary_file=0xbfffe6e0) at /home/spatar/mvtm-www/php-5.1.2/main/main.c:1720
#17 0xb7a57ac1 in php_handler (r=0x82799d0) at /home/spatar/mvtm-www/php-5.1.2/sapi/apache2handler/sapi_apache2.c:584
#18 0x0807756b in ap_run_handler ()
...

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 [2006-01-14 15:48 UTC] sniper@php.net 
Assigned to the maintainer.
 [2006-02-03 12:42 UTC] robertg2 at hope dot ac dot uk 
I have the same problem.

Apache/2.0.54
Oracle InstantClient 10.2.0.1
PHP 5.0.4
oci8 from cvs (1.292 at 2006-02-03)
Suse Linux 10.0 (2.6.13-15-default)

Reverted back to oci8 pecl beta release 1.1.1 which doesn't  suffer from the issue.
 [2006-02-03 15:47 UTC] tony2001@php.net 
This bug has been fixed in CVS.

Snapshots of the sources are packaged every three hours; this change
will be in the next snapshot. You can grab the snapshot at
http://snaps.php.net/.
 
Thank you for the report, and for helping us make PHP better.

Thanks for the last comment, it was _very_ helpful.
 [2006-02-04 12:37 UTC] spatar at mail dot nnov dot ru 
Thank you. It works now.
 
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