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fix parent grinding check

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This commit is contained in:
Henri S 2020-04-10 16:34:04 -04:00
parent 23dc776bd1
commit a4cdfe89fd
1 changed files with 2 additions and 2 deletions
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4
chain/vm/syscalls.go
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@ -131,8 +131,8 @@ func (ss *syscallShim) VerifyConsensusFault(a, b, extra []byte, epoch abi.ChainE
return nil, xerrors.Errorf("cannot decode extra: %w", decodeErr)
}
if types.CidArrsEqual(blockA.Parents, blockC.Parents) && types.CidArrsContains(blockB.Parents, blockC.Cid()) &&
!types.CidArrsContains(blockB.Parents, blockA.Cid()) {
if types.CidArrsEqual(blockA.Parents, blockC.Parents) && blockA.Height == blockB.Height &&
types.CidArrsContains(blockB.Parents, blockC.Cid()) && !types.CidArrsContains(blockB.Parents, blockA.Cid()) {
consensusFault = &runtime.ConsensusFault{
Target: blockA.Miner,
Epoch: blockB.Height,