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core: check rewind head is later than older

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Signed-off-by: Delweng <delweng@gmail.com>
This commit is contained in:
Delweng 2025-07-02 21:40:25 +08:00 committed by jsvisa
parent d761acaa06
commit 8788d37829
1 changed files with 8 additions and 0 deletions
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8
core/blockchain.go
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@ -735,6 +735,14 @@ func (bc *BlockChain) initializeHistoryPruning(latest uint64) error {
// was snap synced or full synced and in which state, the method will try to
// delete minimal data from disk whilst retaining chain consistency.
func (bc *BlockChain) SetHead(head uint64) error {
// Only allowed to rewind to a block that is later than the oldest state block.
firstStateBlock, err := bc.triedb.FirstStateBlock()
if err != nil {
return err
}
if head < firstStateBlock {
return fmt.Errorf("cannot rewind to block %d, oldest available state is at block %d", head, firstStateBlock)
}
if _, err := bc.setHeadBeyondRoot(head, 0, common.Hash{}, false); err != nil {
return err
}