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consensus: check that proposal is non-nil before voting (#7480)

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This commit is contained in:
William Banfield
2021-12-22 11:09:57 -05:00
committed by GitHub
parent e6d8b7c043
commit 9ade45d81b
1 changed files with 13 additions and 0 deletions
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internal/consensus/state.go
+13
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@@ -1321,6 +1321,12 @@ func (cs *State) defaultDoPrevote(height int64, round int32) {
return
}
if cs.Proposal == nil || cs.ProposalBlock == nil {
logger.Debug("prevote step; did not receive proposal, prevoting nil")
cs.signAddVote(tmproto.PrevoteType, nil, types.PartSetHeader{})
return
}
if !cs.Proposal.Timestamp.Equal(cs.ProposalBlock.Header.Time) {
logger.Debug("proposal timestamp not equal, prevoting nil")
cs.signAddVote(tmproto.PrevoteType, nil, types.PartSetHeader{})
@@ -1489,6 +1495,13 @@ func (cs *State) enterPrecommit(height int64, round int32) {
}
// At this point, +2/3 prevoted for a particular block.
// If we never received a proposal for this block, we must precommit nil
if cs.Proposal == nil || cs.ProposalBlock == nil {
logger.Debug("precommit step; did not receive proposal, precommitting nil")
cs.signAddVote(tmproto.PrecommitType, nil, types.PartSetHeader{})
return
}
// If the proposal time does not match the block time, precommit nil.
if !cs.Proposal.Timestamp.Equal(cs.ProposalBlock.Header.Time) {
logger.Debug("proposal timestamp not equal, precommitting nil")