From: [EMAIL PROTECTED]
Operating system: Linux
PHP version: 4.2.0
PHP Bug Type: Session related
Bug description: reallocating memory causes segfaults
<?php
session_register( "_SESSION" );
$_SESSION = "kk";
?>
backtrace:
#0 0x08189910 in zend_hash_get_current_key_ex (ht=0x82d5654,
str_index=0xbfffe984, str_length=0xbfffe980, num_index=0xbfffe97c,
duplicate=0 '\000', pos=0xbfffe988) at zend_hash.c:1035
#1 0x080fed0e in php_session_save_current_state ()
#2 0x08101855 in php_session_flush ()
#3 0x08101895 in zm_deactivate_session ()
#4 0x08186aee in module_registry_cleanup (module=0x8285ed0) at
zend_API.c:1169
#5 0x08188f0a in zend_hash_apply (ht=0x82349a0,
apply_func=0x8186aa6 <module_registry_cleanup>) at zend_hash.c:669
#6 0x08183e14 in zend_deactivate_modules () at zend.c:581
#7 0x08077658 in php_request_shutdown ()
#8 0x08075997 in main ()
#9 0x4037a4f2 in __libc_start_main () from /lib/libc.so.6
The problem however appears earlier.
It seems that the zval structure ps_globals.http_session_vars points at is
freed and allocated elsewhere, but ps_globals.http_session_vars
points to the old location, so when it comes to
php_session_save_current_state (#1),
Z_ARRVAL_P(PS(http_session_vars)) holds some meaningless value.
--
Edit bug report at http://bugs.php.net/?id=16995&edit=1
--
Fixed in CVS: http://bugs.php.net/fix.php?id=16995&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=16995&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=16995&r=needtrace
Try newer version: http://bugs.php.net/fix.php?id=16995&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=16995&r=support
Expected behavior: http://bugs.php.net/fix.php?id=16995&r=notwrong
Not enough info: http://bugs.php.net/fix.php?id=16995&r=notenoughinfo
Submitted twice: http://bugs.php.net/fix.php?id=16995&r=submittedtwice
