static void free_filters_list(struct list_head *filters)
{
	struct perf_addr_filter *filter, *iter;

	list_for_each_entry_safe(filter, iter, filters, entry) {
		if (filter->inode)
			iput(filter->inode);
		list_del(&filter->entry);
		kfree(filter);
	}
}

The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.