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Fix DoS vulnerability in mempool acceptance

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This commit is contained in:
lateminer
2018-10-24 21:50:53 +03:00
parent 2f077dc049
commit bddddba7f3
1 changed files with 5 additions and 5 deletions
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10
src/main.cpp
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@@ -1170,11 +1170,6 @@ bool AcceptToMemoryPoolWorker(CTxMemPool& pool, CValidationState& state, const C
return state.DoS(100, error("AcceptToMemoryPool: coinstake as individual tx"),
REJECT_INVALID, "coinstake");
// Rather not work on nonstandard transactions (unless -testnet/-regtest)
string reason;
if (fRequireStandard && !IsStandardTx(tx, reason))
return state.DoS(0, false, REJECT_NONSTANDARD, reason);
// Don't relay version 2 transactions until CSV is active, and we can be
// sure that such transactions will be mined (unless we're on
// -testnet/-regtest).
@@ -1182,6 +1177,11 @@ bool AcceptToMemoryPoolWorker(CTxMemPool& pool, CValidationState& state, const C
return state.DoS(0, false, REJECT_NONSTANDARD, "premature-version2-tx");
}
// Rather not work on nonstandard transactions (unless -testnet/-regtest)
string reason;
if (fRequireStandard && !IsStandardTx(tx, reason))
return state.DoS(0, false, REJECT_NONSTANDARD, reason);
// Only accept nLockTime-using transactions that can be mined in the next
// block; we don't want our mempool filled up with transactions that can't
// be mined yet.