static void store_tree(struct tree_entry *root)
{
	struct tree_content *t;
	unsigned int i, j, del;
	struct last_object lo = { STRBUF_INIT, 0, 0, /* no_swap */ 1 };
	struct object_entry *le = NULL;

	if (!is_null_sha1(root->versions[1].sha1))
		return;

	if (!root->tree)
		load_tree(root);
	t = root->tree;

	for (i = 0; i < t->entry_count; i++) {
		if (t->entries[i]->tree)
			store_tree(t->entries[i]);
	}

	if (!(root->versions[0].mode & NO_DELTA))
		le = find_object(root->versions[0].sha1);
	if (S_ISDIR(root->versions[0].mode) && le && le->pack_id == pack_id) {
		mktree(t, 0, &old_tree);
		lo.data = old_tree;
		lo.offset = le->idx.offset;
		lo.depth = t->delta_depth;
	}

	mktree(t, 1, &new_tree);
	store_object(OBJ_TREE, &new_tree, &lo, root->versions[1].sha1, 0);

	t->delta_depth = lo.depth;
	for (i = 0, j = 0, del = 0; i < t->entry_count; i++) {
		struct tree_entry *e = t->entries[i];
		if (e->versions[1].mode) {
			e->versions[0].mode = e->versions[1].mode;
			hashcpy(e->versions[0].sha1, e->versions[1].sha1);
			t->entries[j++] = e;
		} else {
			release_tree_entry(e);
			del++;
		}
	}
	t->entry_count -= del;
}

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.