core/txpool/legacypool: reject gapped tx from delegated account #31430
+38
−23
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MariusVanDerWijden
previously approved these changes
Mar 19, 2025
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This pull request improves the protection mechanism in the txpool for
senders with delegation. A sender with either delegation or pending
delegation is now limited to a maximum of one in-flight executable
transaction, while gapped transactions will be rejected.
Reason:
If nonce-gapped transaction from delegated/pending-delegated senders
can be acceptable, then it's no-longer possible to send another "executable"
transaction with correct nonce due to the policy of at most one inflight tx.
The gapped transaction will be stuck in the txpool, with no meaningful way
to unlock the sender.