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[2007-11-29 14:54 UTC] michael dot virnstein at brodos dot de
Description:
------------
PHP: since 5.2.4
Apache: 2.2.6
Oracle DB: 10.2.0.3.0
Oracle-Client: 10.2.0.3
OS: Linux
When i'm calling a PL/SQL-function, which returns a ref cursor, more than once, php segfaults. When i call the PL/SQL-function only once, everything works.
The bug is present since PHP 5.2.4, which introduced OCI 1.2.4
Create the following Oracle-package:
create or replace package testpackage
is
type cursortype is ref Cursor;
function testcursor return cursortype;
end testpackage;
/
create or replace package body testpackage
is
function testcursor return cursortype
is
retCursor cursorType;
begin
Open retCursor For 'select * from dual';
return retCursor;
end;
end testpackage;
/
Reproduce code:
---------------
<?php
$conn = ocilogon('user', 'pass', 'db');
for ($i = 0; $i < 2; $i++)
{
var_dump(getCur($conn));
}
function getCur($conn)
{
$cur = OCINewCursor($conn);
$stmt = ociparse($conn, 'begin :cur := testpackage.testcursor; end;');
ocibindbyname($stmt, ':cur', $cur, -1, OCI_B_CURSOR);
ociexecute($stmt, OCI_DEFAULT); // <-- segfault
ociexecute($cur, OCI_DEFAULT);
$ret = array();
while (ocifetchinto($cur, $row, OCI_ASSOC))
$ret[] = $row;
ocifreestatement($cur);
ocifreestatement($stmt);
return $ret;
}
?>
Expected result:
----------------
display var_dump result
Actual result:
--------------
apache segmentation fault
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Last updated: Sat Apr 19 18:01:26 2025 UTC |
here's the backtrace: #0 0xb674607d in kpurclr () from /opt/oracle10/product/10/lib/libclntsh.so.10.1 #1 0xb6adade7 in kpcxc2r () from /opt/oracle10/product/10/lib/libclntsh.so.10.1 #2 0xb6b304d4 in ttcrs2c () from /opt/oracle10/product/10/lib/libclntsh.so.10.1 #3 0xb6b3ee97 in ttcacr () from /opt/oracle10/product/10/lib/libclntsh.so.10.1 #4 0xb6acd5e2 in ttcdrv () from /opt/oracle10/product/10/lib/libclntsh.so.10.1 #5 0xb69b3ec5 in nioqwa () from /opt/oracle10/product/10/lib/libclntsh.so.10.1 #6 0xb6821d97 in upirtrc () from /opt/oracle10/product/10/lib/libclntsh.so.10.1 #7 0xb6797a36 in kpurcsc () from /opt/oracle10/product/10/lib/libclntsh.so.10.1 #8 0xb674e057 in kpuexecv8 () from /opt/oracle10/product/10/lib/libclntsh.so.10.1 #9 0xb674f40a in kpuexec () from /opt/oracle10/product/10/lib/libclntsh.so.10.1 #10 0xb6826902 in OCIStmtExecute () from /opt/oracle10/product/10/lib/libclntsh.so.10.1 #11 0xb7711ac8 in php_oci_statement_execute (statement=0xb5f039b0, mode=0) at /usr/local/src/php-5.2.5/ext/oci8/oci8_statement.c:442 #12 0xb771bbe9 in zif_oci_execute (ht=2, return_value=0xb159ab84, return_value_ptr=0x0, this_ptr=0x0, return_value_used=0) at /usr/local/src/php-5.2.5/ext/oci8/oci8_interface.c:1302 #13 0xb79914cc in zend_do_fcall_common_helper_SPEC (execute_data=0xbf8ee464) at /usr/local/src/php-5.2.5/Zend/zend_vm_execute.h:200 #14 0xb7996d96 in ZEND_DO_FCALL_SPEC_CONST_HANDLER (execute_data=0xbf8ee464) at /usr/local/src/php-5.2.5/Zend/zend_vm_execute.h:1681 #15 0xb799102d in execute (op_array=0x83d2398) at /usr/local/src/php-5.2.5/Zend/zend_vm_execute.h:92 #16 0xb7991646 in zend_do_fcall_common_helper_SPEC (execute_data=0xbf8ee854) at /usr/local/src/php-5.2.5/Zend/zend_vm_execute.h:234 #17 0xb7996d96 in ZEND_DO_FCALL_SPEC_CONST_HANDLER (execute_data=0xbf8ee854) at /usr/local/src/php-5.2.5/Zend/zend_vm_execute.h:1681 #18 0xb799102d in execute (op_array=0x83dd000) at /usr/local/src/php-5.2.5/Zend/zend_vm_execute.h:92 #19 0xb795ee86 in zend_call_function (fci=0xbf8eea24, fci_cache=0x0) at /usr/local/src/php-5.2.5/Zend/zend_execute_API.c:990 #20 0xb795d86c in call_user_function_ex (function_table=0x820aa58, object_pp=0x0, function_name=0xb14c613c, retval_ptr_ptr=0xbf8eea78, param_count=3, params=0xb14f4af4, no_separation=0, symbol_table=0x0) at /usr/local/src/php-5.2.5/Zend/zend_execute_API.c:617 #21 0xb78895f1 in zif_call_user_func_array (ht=2, return_value=0xb14c9e24, return_value_ptr=0x0, this_ptr=0x0, return_value_used=1) at /usr/local/src/php-5.2.5/ext/standard/basic_functions.c:5153 #22 0xb79914cc in zend_do_fcall_common_helper_SPEC (execute_data=0xbf8f1844) at /usr/local/src/php-5.2.5/Zend/zend_vm_execute.h:200 #23 0xb7996d96 in ZEND_DO_FCALL_SPEC_CONST_HANDLER (execute_data=0xbf8f1844) at /usr/local/src/php-5.2.5/Zend/zend_vm_execute.h:1681 #24 0xb799102d in execute (op_array=0xb15efce4) at /usr/local/src/php-5.2.5/Zend/zend_vm_execute.h:92 #25 0xb799df9e in ZEND_INCLUDE_OR_EVAL_SPEC_TMP_HANDLER (execute_data=0xbf8f3a64) at /usr/local/src/php-5.2.5/Zend/zend_vm_execute.h:4614 #26 0xb799102d in execute (op_array=0xb14d0c0c) at /usr/local/src/php-5.2.5/Zend/zend_vm_execute.h:92 #27 0xb799df9e in ZEND_INCLUDE_OR_EVAL_SPEC_TMP_HANDLER (execute_data=0xbf8f6b04) at /usr/local/src/php-5.2.5/Zend/zend_vm_execute.h:4614 #28 0xb799102d in execute (op_array=0xb1570818) at /usr/local/src/php-5.2.5/Zend/zend_vm_execute.h:92 #29 0xb7997ba5 in ZEND_INCLUDE_OR_EVAL_SPEC_CONST_HANDLER (execute_data=0xbf8f8244) at /usr/local/src/php-5.2.5/Zend/zend_vm_execute.h:2039 #30 0xb799102d in execute (op_array=0xb16ef2e4) at /usr/local/src/php-5.2.5/Zend/zend_vm_execute.h:92 #31 0xb79a76f5 in ZEND_INCLUDE_OR_EVAL_SPEC_VAR_HANDLER (execute_data=0xbf8fc154) at /usr/local/src/php-5.2.5/Zend/zend_vm_execute.h:7761 #32 0xb799102d in execute (op_array=0xb5f2eff0) at /usr/local/src/php-5.2.5/Zend/zend_vm_execute.h:92 #33 0xb79cf5d0 in ZEND_INCLUDE_OR_EVAL_SPEC_CV_HANDLER (execute_data=0xbf8fcd64) at /usr/local/src/php-5.2.5/Zend/zend_vm_execute.h:19833 #34 0xb799102d in execute (op_array=0xb600ac80) at /usr/local/src/php-5.2.5/Zend/zend_vm_execute.h:92 #35 0xb7991646 in zend_do_fcall_common_helper_SPEC (execute_data=0xbf8fd254) at /usr/local/src/php-5.2.5/Zend/zend_vm_execute.h:234 #36 0xb7992119 in ZEND_DO_FCALL_BY_NAME_SPEC_HANDLER (execute_data=0xbf8fd254) at /usr/local/src/php-5.2.5/Zend/zend_vm_execute.h:322 #37 0xb799102d in execute (op_array=0xb600caf4) at /usr/local/src/php-5.2.5/Zend/zend_vm_execute.h:92 ---Type <return> to continue, or q <return> to quit--- #38 0xb7991646 in zend_do_fcall_common_helper_SPEC (execute_data=0xbf8fdef4) at /usr/local/src/php-5.2.5/Zend/zend_vm_execute.h:234 #39 0xb7992119 in ZEND_DO_FCALL_BY_NAME_SPEC_HANDLER (execute_data=0xbf8fdef4) at /usr/local/src/php-5.2.5/Zend/zend_vm_execute.h:322 #40 0xb799102d in execute (op_array=0xb6031aa4) at /usr/local/src/php-5.2.5/Zend/zend_vm_execute.h:92 #41 0xb7991646 in zend_do_fcall_common_helper_SPEC (execute_data=0xbf8fe7b4) at /usr/local/src/php-5.2.5/Zend/zend_vm_execute.h:234 #42 0xb7992119 in ZEND_DO_FCALL_BY_NAME_SPEC_HANDLER (execute_data=0xbf8fe7b4) at /usr/local/src/php-5.2.5/Zend/zend_vm_execute.h:322 #43 0xb799102d in execute (op_array=0xb60350c4) at /usr/local/src/php-5.2.5/Zend/zend_vm_execute.h:92 #44 0xb7991646 in zend_do_fcall_common_helper_SPEC (execute_data=0xbf900124) at /usr/local/src/php-5.2.5/Zend/zend_vm_execute.h:234 #45 0xb7992119 in ZEND_DO_FCALL_BY_NAME_SPEC_HANDLER (execute_data=0xbf900124) at /usr/local/src/php-5.2.5/Zend/zend_vm_execute.h:322 #46 0xb799102d in execute (op_array=0x833ac90) at /usr/local/src/php-5.2.5/Zend/zend_vm_execute.h:92 #47 0xb796c29f in zend_execute_scripts (type=8, retval=0x0, file_count=3) at /usr/local/src/php-5.2.5/Zend/zend.c:1134 #48 0xb791a947 in php_execute_script (primary_file=0xbf902464) at /usr/local/src/php-5.2.5/main/main.c:2004 #49 0xb79e5b0b in php_handler (r=0x82fde10) at /usr/local/src/php-5.2.5/sapi/apache2handler/sapi_apache2.c:631 #50 0x0807adf9 in ap_run_handler () #51 0x0807df57 in ap_invoke_handler () #52 0x080c6088 in ap_process_request () #53 0x080c338b in ap_process_http_connection () #54 0x08081d09 in ap_run_process_connection () #55 0x080df640 in child_main () #56 0x080df8a8 in make_child () #57 0x080e0645 in ap_mpm_run () #58 0x08068bce in main ()This was the backtrace of another php-script, that's causing the same error. Here's the backtrace of the script containing the reporduce code: #0 0xb6aec13d in kghmkfree () from /opt/oracle10/product/10/lib/libclntsh.so.10.1 #1 0xb6af31df in kghaddex () from /opt/oracle10/product/10/lib/libclntsh.so.10.1 #2 0xb6af5096 in kghgex () from /opt/oracle10/product/10/lib/libclntsh.so.10.1 #3 0xb6af7a5a in kghfnd () from /opt/oracle10/product/10/lib/libclntsh.so.10.1 #4 0xb6af7f99 in kghprmalo () from /opt/oracle10/product/10/lib/libclntsh.so.10.1 #5 0xb6afa12c in kghalp () from /opt/oracle10/product/10/lib/libclntsh.so.10.1 #6 0xb6b03c48 in kghmrk () from /opt/oracle10/product/10/lib/libclntsh.so.10.1 #7 0xb66dba9f in kpuhhmrk () from /opt/oracle10/product/10/lib/libclntsh.so.10.1 #8 0xb66e209c in kpurclr () from /opt/oracle10/product/10/lib/libclntsh.so.10.1 #9 0xb6a76de7 in kpcxc2r () from /opt/oracle10/product/10/lib/libclntsh.so.10.1 #10 0xb6acc4d4 in ttcrs2c () from /opt/oracle10/product/10/lib/libclntsh.so.10.1 #11 0xb6adae97 in ttcacr () from /opt/oracle10/product/10/lib/libclntsh.so.10.1 #12 0xb6a695e2 in ttcdrv () from /opt/oracle10/product/10/lib/libclntsh.so.10.1 #13 0xb694fec5 in nioqwa () from /opt/oracle10/product/10/lib/libclntsh.so.10.1 #14 0xb67bdd97 in upirtrc () from /opt/oracle10/product/10/lib/libclntsh.so.10.1 #15 0xb6733a36 in kpurcsc () from /opt/oracle10/product/10/lib/libclntsh.so.10.1 #16 0xb66ea057 in kpuexecv8 () from /opt/oracle10/product/10/lib/libclntsh.so.10.1 #17 0xb66eb40a in kpuexec () from /opt/oracle10/product/10/lib/libclntsh.so.10.1 #18 0xb67c2902 in OCIStmtExecute () from /opt/oracle10/product/10/lib/libclntsh.so.10.1 #19 0xb76adac8 in php_oci_statement_execute (statement=0xb5fa4880, mode=0) at /usr/local/src/php-5.2.5/ext/oci8/oci8_statement.c:442 #20 0xb76b7be9 in zif_oci_execute (ht=2, return_value=0xb5fa9470, return_value_ptr=0x0, this_ptr=0x0, return_value_used=0) at /usr/local/src/php-5.2.5/ext/oci8/oci8_interface.c:1302 #21 0xb792d4cc in zend_do_fcall_common_helper_SPEC (execute_data=0xbf7fd6b4) at /usr/local/src/php-5.2.5/Zend/zend_vm_execute.h:200 #22 0xb7932d96 in ZEND_DO_FCALL_SPEC_CONST_HANDLER (execute_data=0xbf7fd6b4) at /usr/local/src/php-5.2.5/Zend/zend_vm_execute.h:1681 #23 0xb792d02d in execute (op_array=0x8308038) at /usr/local/src/php-5.2.5/Zend/zend_vm_execute.h:92 #24 0xb792d646 in zend_do_fcall_common_helper_SPEC (execute_data=0xbf7fd894) at /usr/local/src/php-5.2.5/Zend/zend_vm_execute.h:234 #25 0xb792e119 in ZEND_DO_FCALL_BY_NAME_SPEC_HANDLER (execute_data=0xbf7fd894) at /usr/local/src/php-5.2.5/Zend/zend_vm_execute.h:322 #26 0xb792d02d in execute (op_array=0xb5fa458c) at /usr/local/src/php-5.2.5/Zend/zend_vm_execute.h:92 #27 0xb790829f in zend_execute_scripts (type=8, retval=0x0, file_count=3) at /usr/local/src/php-5.2.5/Zend/zend.c:1134 #28 0xb78b6947 in php_execute_script (primary_file=0xbf7ffbd4) at /usr/local/src/php-5.2.5/main/main.c:2004 #29 0xb7981b0b in php_handler (r=0x82fde30) at /usr/local/src/php-5.2.5/sapi/apache2handler/sapi_apache2.c:631 #30 0x0807adf9 in ap_run_handler () #31 0x0807df57 in ap_invoke_handler () #32 0x080c6088 in ap_process_request () #33 0x080c338b in ap_process_http_connection () #34 0x08081d09 in ap_run_process_connection () #35 0x080df640 in child_main () #36 0x080df8a8 in make_child () #37 0x080e0645 in ap_mpm_run () #38 0x08068bce in main ()