struct rb_entry *__lookup_rb_tree(struct rb_root *root,
				struct rb_entry *cached_re, unsigned int ofs)
{
	struct rb_entry *re;

	re = __lookup_rb_tree_fast(cached_re, ofs);
	if (!re)
		return __lookup_rb_tree_slow(root, ofs);

	return re;
}

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.