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panic: runtime error: makeslice: len out of range #187

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jhawk28 opened this issue Apr 1, 2024 · 6 comments · May be fixed by #188
Closed

panic: runtime error: makeslice: len out of range #187

jhawk28 opened this issue Apr 1, 2024 · 6 comments · May be fixed by #188

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@jhawk28
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jhawk28 commented Apr 1, 2024

some transactions are causing the library to panic at: github.com/gagliardetto/[email protected]/transaction.go:490
@jhawk28 jhawk28 mentioned this issue Apr 1, 2024
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@gagliardetto
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Hi

can you please post the whole panic trace?

@gagliardetto
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It would also be useful to have one of these transactions that cause the panic.

@jhawk28
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jhawk28 commented Apr 1, 2024 

panic: runtime error: makeslice: len out of range
goroutine 3107636 [running]:
github.com/gagliardetto/solana-go.(*Transaction).UnmarshalWithDecoder(0xc052ed05a0, 0xc023e44d20)
        /Users/joshua/go/pkg/mod/github.com/gagliardetto/[email protected]/transaction.go:490 +0x7c
github.com/gagliardetto/binary.(*Decoder).decodeBin(0xc023e44d20, {0x0, 0x0, 0x0}, 0x0?)
        /Users/joshua/go/pkg/mod/github.com/gagliardetto/[email protected]/decoder_bin.go:84 +0x10ec
github.com/gagliardetto/binary.(*Decoder).decodeWithOptionBin(0x0?, {0x10f7f60?, 0xc05b9931f8?}, 0x412005?)
        /Users/joshua/go/pkg/mod/github.com/gagliardetto/[email protected]/decoder_bin.go:37 +0x105
github.com/gagliardetto/binary.(*Decoder).Decode(0xc008228230?, {0x10f7f60?, 0xc05b9931f8?})
        /Users/joshua/go/pkg/mod/github.com/gagliardetto/[email protected]/decoder.go:130 +0x52
github.com/gagliardetto/solana-go.TransactionFromDecoder(...)
        /Users/joshua/go/pkg/mod/github.com/gagliardetto/[email protected]/transaction.go:83

@jhawk28
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jhawk28 commented Apr 1, 2024 •
edited
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I don't have a transaction that is causing the issue yet. If can get find one, I'll post.

NOTE: I'm parsing a sendTransaction to pull out the blockhash.

ex:

	var data []byte
	switch encoding {
	case "base64":
		data, err = base64.StdEncoding.DecodeString(encoded)
		if err != nil {
			return ""
		}
	case "", "base58":
		data, err = base58.Decode(encoded)
		if err != nil {
			return ""
		}
	default:
		// unknown encoding
		return ""
	}

	tx, err := solana.TransactionFromDecoder(bin.NewBinDecoder(data))
	if err != nil || tx == nil {
		return ""
	}
	return tx.Message.RecentBlockhash.String()

@gagliardetto
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Try github.com/gagliardetto/[email protected]

@gagliardetto
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Closing as stale

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check for negative numSignatures to prevent panic jhawk28/solana-go
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@jhawk28 @gagliardetto