[bug]: panic on ReadTaprootBip32Derivation #2372
Description
When parsing a PSBT, just got a panic due to makeslice: len out of range in ReadTaprootBip32Derivation. Perhaps due to LeafHashes: make([][]byte, int(numHashes)):
Lines 118 to 133 in 1eb974a
Test to reproduce:
func TestPSBTCrash(t *testing.T) {
hexString := "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"
// Convert hex string to byte slice
buffer, err := hex.DecodeString(hexString)
if err != nil {
log.Fatalf("Failed to decode hex: %v", err)
}
psbt, err := NewFromRawBytes(bytes.NewBuffer(buffer), false)
t.Logf("got transaction: %v", spew.Sdump(psbt.UnsignedTx))
}