🐛 Bug HuntSO Solidity Hard⚡+35 XP

Reentrancy Vulnerability

This withdraw function is vulnerable to reentrancy.

🐛 Find the bug

1function withdraw(uint amt) external {

2 require(balances[msg.sender] >= amt);

3 msg.sender.call{value: amt}("");

4 balances[msg.sender] -= amt;

5}

🐛 The bug is on line 3