From c496170c333bf982ff022089fba2e866f2c43d96 Mon Sep 17 00:00:00 2001 From: Preston Van Loon Date: Wed, 5 Feb 2020 11:52:14 -0800 Subject: [PATCH] Do not attempt to save a nil state (#4758) --- beacon-chain/db/kv/state.go | 3 +++ 1 file changed, 3 insertions(+) diff --git a/beacon-chain/db/kv/state.go b/beacon-chain/db/kv/state.go index 47b568593b..bef9e482b7 100644 --- a/beacon-chain/db/kv/state.go +++ b/beacon-chain/db/kv/state.go @@ -106,6 +106,9 @@ func (k *Store) GenesisState(ctx context.Context) (*state.BeaconState, error) { func (k *Store) SaveState(ctx context.Context, state *state.BeaconState, blockRoot [32]byte) error { ctx, span := trace.StartSpan(ctx, "BeaconDB.SaveState") defer span.End() + if state == nil { + return errors.New("nil state") + } enc, err := encode(state.InnerStateUnsafe()) if err != nil { return err