bug report

[RFoe]

Atempt to get the rightmost child without validation

Issue

In db.c : create_new_root(...)

code:

 if (get_node_type(left_child) == NODE_INTERNAL) {
 void* child;
 for (int i = 0; i < *internal_node_num_keys(left_child); i++) {
 child = get_page(table->pager, *internal_node_child(left_child,i));
 *node_parent(child) = left_child_page_num;
 }
 child = get_page(table->pager, *internal_node_right_child(left_child)); // POTENTIAL ERROR HERE
 *node_parent(child) = left_child_page_num;
 }

[0xVENOM-DDOS]

The bug here is caused by not validating the rightmost child pointer in create_new_root(...) before dereferencing it:
child = get_page(table->pager, *internal_node_right_child(left_child)); // POTENTIAL ERROR *node_parent(child) = left_child_page_num;
If the right child is missing or its pointer is invalid, this can cause segmentation faults or corrupt the B-tree structure. To fix, add validation for the right child pointer before calling get_page and updating its parent. This will make root splits safer and more robust in all edge cases.