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Bug #48679 SQLiteUnbuffered::count() SIGSEGV
Submitted: 2009-06-24 18:43 UTC Modified: 2009-06-25 00:16 UTC
From: felipe@php.net Assigned:
Status: Closed Package: SQLite related
PHP Version: 5.3CVS-2009-06-24 (CVS) OS: Linux
Private report: No CVE-ID: None
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 [2009-06-24 18:43 UTC] felipe@php.net 
Description:
------------
See below:

Reproduce code:
---------------
$x = new sqliteunbuffered;
count($x);

Expected result:
----------------
No SIGSEGV.

Actual result:
--------------
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0xb7c696c0 (LWP 30884)]
0x082783ca in sqlite_count_elements (object=0x9a31940, count=0x9a325e0, tsrm_ls=0x98f1050) at /home/felipe/dev/php5/ext/sqlite/sqlite.c:2822
2822		if (obj->u.res->buffered) {
(gdb) bt
#0  0x082783ca in sqlite_count_elements (object=0x9a31940, count=0x9a325e0, tsrm_ls=0x98f1050) at /home/felipe/dev/php5/ext/sqlite/sqlite.c:2822
#1  0x082ca6ab in zif_count (ht=1, return_value=0x9a325e0, return_value_ptr=0x0, this_ptr=0x0, return_value_used=0, tsrm_ls=0x98f1050)
    at /home/felipe/dev/php5/ext/standard/array.c:323
#2  0x08436a24 in zend_do_fcall_common_helper_SPEC (execute_data=0x9a60a94, tsrm_ls=0x98f1050) at /home/felipe/dev/php5/Zend/zend_vm_execute.h:313
#3  0x0843cb8b in ZEND_DO_FCALL_SPEC_CONST_HANDLER (execute_data=0x9a60a94, tsrm_ls=0x98f1050) at /home/felipe/dev/php5/Zend/zend_vm_execute.h:1601
#4  0x084357eb in execute (op_array=0x9a31fc8, tsrm_ls=0x98f1050) at /home/felipe/dev/php5/Zend/zend_vm_execute.h:104
#5  0x083f4ef4 in zend_eval_stringl (str=0xbfef97f4 "$x = new sqliteunbuffered; count($x);", str_len=37, retval_ptr=0x0, 
    string_name=0x87a08b4 "Command line code", tsrm_ls=0x98f1050) at /home/felipe/dev/php5/Zend/zend_execute_API.c:1159
#6  0x083f517b in zend_eval_stringl_ex (str=0xbfef97f4 "$x = new sqliteunbuffered; count($x);", str_len=37, retval_ptr=0x0, 
    string_name=0x87a08b4 "Command line code", handle_exceptions=1, tsrm_ls=0x98f1050) at /home/felipe/dev/php5/Zend/zend_execute_API.c:1200
#7  0x083f522f in zend_eval_string_ex (str=0xbfef97f4 "$x = new sqliteunbuffered; count($x);", retval_ptr=0x0, string_name=0x87a08b4 "Command line code", 
    handle_exceptions=1, tsrm_ls=0x98f1050) at /home/felipe/dev/php5/Zend/zend_execute_API.c:1211
#8  0x084e6ca2 in main (argc=3, argv=0xbfef7d94) at /home/felipe/dev/php5/sapi/cli/php_cli.c:1227

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 [2009-06-25 00:16 UTC] scottmac@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/.
 
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