If a realloc() happens in syspath_add(), the move_later pointer could
point to an invalid memory region.
Let move_later store the array index, instead of the pointer to the
entry.
return NULL;
if (!udev_enumerate->devices_uptodate) {
unsigned int i;
return NULL;
if (!udev_enumerate->devices_uptodate) {
unsigned int i;
- struct syspath *prev = NULL, *move_later = NULL;
+ struct syspath *prev = NULL;
size_t move_later_prefix = 0;
udev_list_cleanup(&udev_enumerate->devices_list);
size_t move_later_prefix = 0;
udev_list_cleanup(&udev_enumerate->devices_list);
move_later_prefix = devices_delay_later(udev_enumerate->udev, entry->syspath);
if (move_later_prefix > 0) {
move_later_prefix = devices_delay_later(udev_enumerate->udev, entry->syspath);
if (move_later_prefix > 0) {
- if (move_later &&
- !strneq(entry->syspath, move_later->syspath, move_later_prefix)) {
+ if ((move_later >= 0) &&
+ !strneq(entry->syspath, udev_enumerate->devices[move_later].syspath, move_later_prefix)) {
- udev_list_entry_add(&udev_enumerate->devices_list, move_later->syspath, NULL);
- move_later = NULL;
+ udev_list_entry_add(&udev_enumerate->devices_list,
+ udev_enumerate->devices[move_later].syspath, NULL);
+ move_later = -1;
}
udev_list_entry_add(&udev_enumerate->devices_list, entry->syspath, NULL);
}
}
udev_list_entry_add(&udev_enumerate->devices_list, entry->syspath, NULL);
}
- if (move_later)
- udev_list_entry_add(&udev_enumerate->devices_list, move_later->syspath, NULL);
+ if (move_later >= 0)
+ udev_list_entry_add(&udev_enumerate->devices_list,
+ udev_enumerate->devices[move_later].syspath, NULL);
/* add and cleanup delayed devices from end of list */
for (i = max; i < udev_enumerate->devices_cur; i++) {
/* add and cleanup delayed devices from end of list */
for (i = max; i < udev_enumerate->devices_cur; i++) {