ID: 29116 Updated by: [EMAIL PROTECTED] Reported By: jdolecek at NetBSD dot org -Status: Open +Status: Closed Bug Type: Scripting Engine problem Operating System: NetBSD 2.0G PHP Version: 4.3.7 New Comment:
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. Previous Comments: ------------------------------------------------------------------------ [2004-07-13 14:17:18] jdolecek at NetBSD dot org Description: ------------ If a constant in a define() call is already defined, Zend engine issues a warning with E_NOTICE set. This warning code might use memory after it's freed. This can cause interpreter crash, especially under threaded Apache 2.x. Following fixes the problem (this patch is in NetBSD pkgsrc ATM): --- Zend/zend_constants.c.orig 2004-07-13 14:01:27.000000000 +0200 +++ Zend/zend_constants.c 2004-07-13 14:01:54.000000000 +0200 @@ -265,11 +265,11 @@ } if (zend_hash_add(EG(zend_constants), name, c->name_len, (void *) c, sizeof(zend_constant), NULL)==FAILURE) { + zend_error(E_NOTICE,"Constant %s already defined", name); free(c->name); if (!(c->flags & CONST_PERSISTENT)) { zval_dtor(&c->value); } - zend_error(E_NOTICE,"Constant %s already defined", name); ret = FAILURE; } if (lowercase_name) { Reproduce code: --------------- Under NetBSD, switch on extended malloc() debugging, by telling malloc to fill free()d values with junk: ln -s J /etc/malloc.conf then, run: php -r 'error_reporting(E_ALL); define("foo", "j"); define("foo", "j");' see something along: PHP Notice: Constant ÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐ in Command line code on line 1 ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=29116&edit=1
