Fix transaction fees underflow

onflow · Feb 2, 2023 · 732f378 · 732f378
1 parent 751cb29
commit 732f378
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Showing 3 changed files with 33 additions and 15 deletions.
diff --git a/contracts/FlowStorageFees.cdc b/contracts/FlowStorageFees.cdc
@@ -97,7 +97,7 @@ pub contract FlowStorageFees {
                 .borrow() {
                     if accountAddress == payer {
                         // if the account is the payer, deduct the maximum possible transaction fees from the balance
-                        balance = balanceRef.balance - maxTxFees
+                        balance = balanceRef.balance.saturatingSubtract(maxTxFees)
                     } else {
                         balance = balanceRef.balance
                     }

diff --git a/lib/go/contracts/internal/assets/assets.go b/lib/go/contracts/internal/assets/assets.go