From c9471e778209e16442a530820fb90c01cd47c369 Mon Sep 17 00:00:00 2001 From: Nick Johnson Date: Tue, 18 Oct 2016 21:34:37 +0100 Subject: [PATCH] miner: copy pending state before handing it to callers (#3162) The pending state was not copied while not mining, leading to a data race. --- miner/worker.go | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/miner/worker.go b/miner/worker.go index e5348cef4..89064c3b9 100644 --- a/miner/worker.go +++ b/miner/worker.go @@ -169,7 +169,7 @@ func (self *worker) pending() (*types.Block, *state.StateDB) { self.current.txs, nil, self.current.receipts, - ), self.current.state + ), self.current.state.Copy() } return self.current.Block, self.current.state.Copy() }