consensus/beacon: copy td value so we can modify it (ethereum#25230)

* consensus/beacon: copy td value so we can modify it * consensus/beacon: copy td value so we can modify it
blakehhuynh · Oct 7, 2022 · 9a053ef · 9a053ef
1 parent 3820d81
commit 9a053ef
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/consensus/beacon/consensus.go b/consensus/beacon/consensus.go
@@ -178,6 +178,7 @@ func verifyTerminalPoWBlock(chain consensus.ChainHeaderReader, preHeaders []*typ
 	if td == nil {
 		return 0, consensus.ErrUnknownAncestor
 	}
+	td = new(big.Int).Set(td)
 	// Check that all blocks before the last one are below the TTD
 	for i, head := range preHeaders {
 		if td.Cmp(chain.Config().TerminalTotalDifficulty) >= 0 {