fix: Add comment to elaborate on unusual flow in flashloan simple

aave · Nov 11, 2021 · 5f41c07 · 5f41c07
1 parent e5b9c2a
commit 5f41c07
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/contracts/protocol/libraries/logic/FlashLoanLogic.sol b/contracts/protocol/libraries/logic/FlashLoanLogic.sol
@@ -184,6 +184,10 @@ library FlashLoanLogic {
     DataTypes.ReserveData storage reserve,
     DataTypes.FlashloanSimpleParams memory params
   ) external {
+    // The usual action flow (cache -> updateState -> validation -> changeState -> updateRates)
+    // is altered to (validation -> user payload -> cache -> updateState -> changeState -> updateRates) for flashloans.
+    // This is done to protect against reentrance and rate manipulation within the user specified payload.
+
     ValidationLogic.validateFlashloanSimple(reserve);
     FlashLoanSimpleLocalVars memory vars;