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Reject future attestations with an error

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This commit is contained in:
Michael Sproul
2026-05-12 11:47:46 +10:00
parent 14a4de41e0
commit d77c23bcfb
1 changed files with 14 additions and 0 deletions
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14
consensus/fork_choice/src/fork_choice.rs
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@@ -185,6 +185,11 @@ pub enum InvalidAttestation {
/// Post-Gloas: attestation with index == 1 (payload_present) requires the block's /// Post-Gloas: attestation with index == 1 (payload_present) requires the block's
/// payload to have been received (`root in store.payload_states`). /// payload to have been received (`root in store.payload_states`).
PayloadNotReceived { beacon_block_root: Hash256 }, PayloadNotReceived { beacon_block_root: Hash256 },
/// The attestation slot is not yet in the past (current_slot < attestation_slot + 1).
FutureSlot {
attestation_slot: Slot,
current_slot: Slot,
},
} }
#[derive(Debug, Clone, PartialEq)] #[derive(Debug, Clone, PartialEq)]
@@ -1111,6 +1116,15 @@ where
if matches!(is_from_block, AttestationFromBlock::False) { if matches!(is_from_block, AttestationFromBlock::False) {
self.validate_target_epoch_against_current_time(target.epoch)?; self.validate_target_epoch_against_current_time(target.epoch)?;
// Per spec: attestations can only affect the fork choice of subsequent slots.
// Reject attestations whose slot is not yet in the past.
if self.fc_store.get_current_slot() < indexed_attestation.data().slot + 1 {
return Err(InvalidAttestation::FutureSlot {
attestation_slot: indexed_attestation.data().slot,
current_slot: self.fc_store.get_current_slot(),
});
}
} }
if target.epoch != indexed_attestation.data().slot.epoch(E::slots_per_epoch()) { if target.epoch != indexed_attestation.data().slot.epoch(E::slots_per_epoch()) {