From 010fc5f507020f69f64b958450eb5136e9d6db77 Mon Sep 17 00:00:00 2001 From: Jouni Malinen Date: Sun, 29 Jun 2014 18:20:13 +0300 Subject: [PATCH] dbus: Clean up array-array-type property getter The previously used design was a bit too complex for static analyzers (e.g., CID 68131, CID 68133) to understand which resulted in false warnings about uninitialized memory. Avoid this by explicitly initializing the pointer array to NULL and also skipping any invalid NULL entry in the helper function. Signed-off-by: Jouni Malinen --- wpa_supplicant/dbus/dbus_new_handlers.c | 2 +- wpa_supplicant/dbus/dbus_new_handlers_p2p.c | 10 ++++++---- 2 files changed, 7 insertions(+), 5 deletions(-) diff --git a/wpa_supplicant/dbus/dbus_new_handlers.c b/wpa_supplicant/dbus/dbus_new_handlers.c index f5efd8be2..6dc5f76d4 100644 --- a/wpa_supplicant/dbus/dbus_new_handlers.c +++ b/wpa_supplicant/dbus/dbus_new_handlers.c @@ -512,7 +512,7 @@ dbus_bool_t wpas_dbus_simple_array_array_property_getter(DBusMessageIter *iter, return FALSE; } - for (i = 0; i < array_len; i++) { + for (i = 0; i < array_len && array[i]; i++) { wpa_dbus_dict_bin_array_add_element(&array_iter, wpabuf_head(array[i]), wpabuf_len(array[i])); diff --git a/wpa_supplicant/dbus/dbus_new_handlers_p2p.c b/wpa_supplicant/dbus/dbus_new_handlers_p2p.c index a3b63bcce..516551a98 100644 --- a/wpa_supplicant/dbus/dbus_new_handlers_p2p.c +++ b/wpa_supplicant/dbus/dbus_new_handlers_p2p.c @@ -1455,7 +1455,7 @@ dbus_bool_t wpas_dbus_getter_p2p_peer_vendor_extension(DBusMessageIter *iter, void *user_data) { struct wpabuf *vendor_extension[P2P_MAX_WPS_VENDOR_EXT]; - int i, num; + unsigned int i, num = 0; struct peer_handler_args *peer_args = user_data; const struct p2p_peer_info *info; @@ -1468,7 +1468,8 @@ dbus_bool_t wpas_dbus_getter_p2p_peer_vendor_extension(DBusMessageIter *iter, } /* Add WPS vendor extensions attribute */ - for (i = 0, num = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) { + os_memset(vendor_extension, 0, sizeof(vendor_extension)); + for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) { if (info->wps_vendor_ext[i] == NULL) continue; vendor_extension[num] = info->wps_vendor_ext[i]; @@ -2115,8 +2116,9 @@ dbus_bool_t wpas_dbus_getter_p2p_group_vendor_ext(DBusMessageIter *iter, struct wpa_supplicant *wpa_s = user_data; struct hostapd_data *hapd; struct wpabuf *vendor_ext[MAX_WPS_VENDOR_EXTENSIONS]; - int num_vendor_ext = 0; - int i; + unsigned int i, num_vendor_ext = 0; + + os_memset(vendor_ext, 0, sizeof(vendor_ext)); /* Verify correct role for this property */ if (wpas_get_p2p_role(wpa_s) == WPAS_P2P_ROLE_GO) {