protect http_session_vars from interrupt corruption

improve save_path check

diff --git a/ext/session/session.c b/ext/session/session.c
index 9ca5a6450d9b4f6187e60773552c763412fb580b..db397dd6acbc885294991477ff623ce16681a392 100644 (file)
--- a/ext/session/session.c
+++ b/ext/session/session.c
@@ -1817,7 +1817,10 @@ static PHP_FUNCTION(session_unset)
        }
 
        IF_SESSION_VARS() {
-               HashTable *ht = Z_ARRVAL_P(PS(http_session_vars));
+               HashTable *ht;
+
+               SEPARATE_ZVAL_IF_NOT_REF(&PS(http_session_vars));
+               ht = Z_ARRVAL_P(PS(http_session_vars));
 
                if (PG(register_globals)) {
                        uint str_len;
@@ -1899,7 +1902,10 @@ static PHP_FUNCTION(session_unregister)
        }
        convert_to_string_ex(p_name);
 
-       PS_DEL_VARL(Z_STRVAL_PP(p_name), Z_STRLEN_PP(p_name));
+       IF_SESSION_VARS() {
+               SEPARATE_ZVAL_IF_NOT_REF(&PS(http_session_vars));
+               PS_DEL_VARL(Z_STRVAL_PP(p_name), Z_STRLEN_PP(p_name));
+       }
 
        RETURN_TRUE;
 }