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authorPieter Wuille <pieter.wuille@gmail.com>2018-08-23 17:01:14 -0700
committerPieter Wuille <pieter.wuille@gmail.com>2018-08-23 17:15:29 -0700
commitbb530efa1872ec963417f61da9a95185c7a7a7d6 (patch)
tree8dd7c2d658a7d4a51863ceb48fe7de7e00344e14 /src
parent540bf8aacc50aae0ea5beb76511905a7d2a3e15f (diff)
Disallow extended encoding for non-witness transactions
Diffstat (limited to 'src')
-rw-r--r--src/primitives/transaction.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/primitives/transaction.h b/src/primitives/transaction.h
index fb9db508d2..c1568f9b2a 100644
--- a/src/primitives/transaction.h
+++ b/src/primitives/transaction.h
@@ -220,6 +220,10 @@ inline void UnserializeTransaction(TxType& tx, Stream& s) {
for (size_t i = 0; i < tx.vin.size(); i++) {
s >> tx.vin[i].scriptWitness.stack;
}
+ if (!tx.HasWitness()) {
+ /* It's illegal to encode witnesses when all witness stacks are empty. */
+ throw std::ios_base::failure("Superfluous witness record");
+ }
}
if (flags) {
/* Unknown flag in the serialization */