diff --git a/substrate/frame/system/src/extensions/check_nonce.rs b/substrate/frame/system/src/extensions/check_nonce.rs index 2939fd6534c09..da1f5a983ffd9 100644 --- a/substrate/frame/system/src/extensions/check_nonce.rs +++ b/substrate/frame/system/src/extensions/check_nonce.rs @@ -20,7 +20,7 @@ use codec::{Decode, Encode}; use frame_support::dispatch::DispatchInfo; use scale_info::TypeInfo; use sp_runtime::{ - traits::{DispatchInfoOf, Dispatchable, One, SignedExtension}, + traits::{DispatchInfoOf, Dispatchable, One, SignedExtension, Zero}, transaction_validity::{ InvalidTransaction, TransactionLongevity, TransactionValidity, TransactionValidityError, ValidTransaction, @@ -80,6 +80,10 @@ where _len: usize, ) -> Result<(), TransactionValidityError> { let mut account = crate::Account::::get(who); + if account.providers.is_zero() && account.sufficients.is_zero() { + // Nonce storage not paid for + return Err(InvalidTransaction::Payment.into()) + } if self.0 != account.nonce { return Err(if self.0 < account.nonce { InvalidTransaction::Stale