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Merge #14248: [0.17] Fix crash bug with duplicate inputs within a transaction

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0d49c82edd [qa] backport: Test for duplicate inputs within a transaction (Suhas Daftuar)
833180f538 Fix crash bug with duplicate inputs within a transaction (Suhas Daftuar)

Pull request description:

  This is a backport of #14247.

Tree-SHA512: 4d3b6244d501a48f56a728c571dac9a346019a671434edac943f4f535ef8f94ec6bfd569a0585ad5e23a6e488ecd7e0079510cbb10a2a22f576eb36d73accb0c
This commit is contained in:
Wladimir J. van der Laan 2018-09-18 01:20:49 +02:00
commit c64128df58
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GPG key ID: 1E4AED62986CD25D
2 changed files with 11 additions and 1 deletions
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2
src/validation.cpp
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@ -3130,7 +3130,7 @@ bool CheckBlock(const CBlock& block, CValidationState& state, const Consensus::P
// Check transactions
for (const auto& tx : block.vtx)
if (!CheckTransaction(*tx, state, false))
if (!CheckTransaction(*tx, state, true))
return state.Invalid(false, state.GetRejectCode(), state.GetRejectReason(),
strprintf("Transaction check failed (tx hash %s) %s", tx->GetHash().ToString(), state.GetDebugMessage()));

10
test/functional/p2p_invalid_block.py
View file

@ -81,6 +81,16 @@ class InvalidBlockRequestTest(BitcoinTestFramework):
node.p2p.send_blocks_and_test([block2], node, False, False, 16, b'bad-txns-duplicate')
# Check transactions for duplicate inputs
self.log.info("Test duplicate input block.")
block2_orig.vtx[2].vin.append(block2_orig.vtx[2].vin[0])
block2_orig.vtx[2].rehash()
block2_orig.hashMerkleRoot = block2_orig.calc_merkle_root()
block2_orig.rehash()
block2_orig.solve()
node.p2p.send_blocks_and_test([block2_orig], node, success=False, request_block=False, reject_reason=b'bad-txns-inputs-duplicate')
self.log.info("Test very broken block.")
block3 = create_block(tip, create_coinbase(height), block_time)