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Bug #30050 php_shutdown_config() [php_ini.c] misses to clean up some pointers
Submitted: 2004-09-10 14:44 UTC Modified: 2004-09-17 04:49 UTC
From: nw at softwarekombinat dot de Assigned:
Status: Closed Package: Reproducible crash
PHP Version: 5.0.1 OS: windows XP
Private report: No CVE-ID: None
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From: nw at softwarekombinat dot de
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 [2004-09-10 14:44 UTC] nw at softwarekombinat dot de
Hi there,

executing the following sequence of function calls results
in a segfault in the last php_module_startup(...) call:

	tsrm_startup(1, 1, 0, NULL);
	php_module_startup(&mf_sapi_module, NULL, 0)

	php_module_shutdown( TSRMLS_C );

	tsrm_startup(1, 1, 0, NULL);
	php_module_startup(&mf_sapi_module, NULL, 0)

I debugged and saw that php_shutdown_config() does not reset global pointers back to  NULL after free()'ing them. This results in another free()-attempt during next startup.

Here is a modified php_shutdown_config() which solves the problem:

int php_shutdown_config(void)
	if (php_ini_opened_path) {
                php_ini_opened_path = NULL; /* BUGFIX */
	if (php_ini_scanned_files) {
                php_ini_scanned_files = NULL; /* BUGFIX */
	return SUCCESS;

Sorry that I don't submit a patch myself - no time, currently....



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 [2004-09-17 04:49 UTC]
This bug has been fixed in CVS.

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