eth/downloader: ignore zero size header batch for importing (#24569)

* eth/downloader: ignore zero size header batch for importing * core, light: reject empty header batch for importing
2022-03-23 01:58:05 +08:00
parent 7ae6c4a790
commit e0e8bf31c5
3 changed files with 23 additions and 15 deletions
--- a/light/lightchain.go
+++ b/light/lightchain.go
@ -419,6 +419,9 @@ func (lc *LightChain) SetChainHead(header *types.Header) error {
 // In the case of a light chain, InsertHeaderChain also creates and posts light
 // chain events when necessary.
 func (lc *LightChain) InsertHeaderChain(chain []*types.Header, checkFreq int) (int, error) {
+	if len(chain) == 0 {
+		return 0, nil
+	}
 	if atomic.LoadInt32(&lc.disableCheckFreq) == 1 {
 		checkFreq = 0
 	}