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Merge branch 'PHP-8.3' into PHP-8.4

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* PHP-8.3:
  Fix leak+crash with sapi_windows_set_ctrl_handler()
This commit is contained in:
Niels Dossche 2025-05-05 19:14:13 +02:00
commit d4a3e437ae
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GPG key ID: B8A8AD166DF0E2E5
5 changed files with 55 additions and 2 deletions
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2
win32/globals.c
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@ -63,5 +63,7 @@ PHP_RSHUTDOWN_FUNCTION(win32_core_globals)
{/*{{{*/
closelog();
php_win32_signal_ctrl_handler_request_shutdown();
return SUCCESS;
}/*}}}*/

23
win32/signal.c
View file

@ -68,9 +68,28 @@ PHP_WINUTIL_API void php_win32_signal_ctrl_handler_shutdown(void)
zend_interrupt_function = orig_interrupt_function;
orig_interrupt_function = NULL;
vm_interrupt_flag = NULL;
ZVAL_UNDEF(&ctrl_handler);
}/*}}}*/
PHP_WINUTIL_API void php_win32_signal_ctrl_handler_request_shutdown(void)
{
/* Must be initialized and in main thread */
if (!vm_interrupt_flag) {
return;
}
#ifdef ZTS
if (!tsrm_is_main_thread()) {
return;
}
#endif
/* The ctrl_handler must be cleared between requests, otherwise we can crash
* due to accessing a previous request's memory. */
if (!Z_ISUNDEF(ctrl_handler)) {
zval_ptr_dtor(&ctrl_handler);
ZVAL_UNDEF(&ctrl_handler);
}
}
static BOOL WINAPI php_win32_signal_system_ctrl_handler(DWORD evt)
{/*{{{*/
if (CTRL_C_EVENT != evt && CTRL_BREAK_EVENT != evt) {
@ -125,7 +144,7 @@ PHP_FUNCTION(sapi_windows_set_ctrl_handler)
RETURN_FALSE;
}
zval_ptr_dtor_nogc(&ctrl_handler);
zval_ptr_dtor(&ctrl_handler);
ZVAL_COPY(&ctrl_handler, &fci.function_name);
RETURN_TRUE;

1
win32/signal.h
View file

@ -10,6 +10,7 @@
#define SIGPROF 27 /* profiling time alarm */
PHP_WINUTIL_API void php_win32_signal_ctrl_handler_init(void);
PHP_WINUTIL_API void php_win32_signal_ctrl_handler_request_shutdown(void);
PHP_WINUTIL_API void php_win32_signal_ctrl_handler_shutdown(void);
#endif /* PHP_WIN32_SIGNAL_H */