forked from TrueCloudLab/neoneo-go
Merge pull request #672 from nspcc-dev/fix-sigsegv-on-reference-check
core: deal with bad transaction Inputs
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commit
b5453ad24f
1 changed files with 9 additions and 8 deletions
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@ -965,14 +965,15 @@ func (bc *Blockchain) References(t *transaction.Transaction) map[transaction.Inp
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references := make(map[transaction.Input]*transaction.Output)
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for prevHash, inputs := range t.GroupInputsByPrevHash() {
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if tx, _, err := bc.dao.GetTransaction(prevHash); err != nil {
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tx = nil
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} else if tx != nil {
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for _, in := range inputs {
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references[*in] = &tx.Outputs[in.PrevIndex]
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tx, _, err := bc.dao.GetTransaction(prevHash)
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if err != nil {
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return nil
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}
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for _, in := range inputs {
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if int(in.PrevIndex) > len(tx.Outputs)-1 {
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return nil
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}
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} else {
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references = nil
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references[*in] = &tx.Outputs[in.PrevIndex]
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}
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}
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return references
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@ -1451,7 +1452,7 @@ func (bc *Blockchain) GetScriptHashesForVerifying(t *transaction.Transaction) ([
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}
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references := bc.References(t)
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if references == nil {
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return nil, errors.New("Invalid operation")
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return nil, errors.New("invalid inputs")
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}
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hashes := make(map[util.Uint160]bool)
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for _, i := range t.Inputs {
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