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fix PING attack [CVE-2019-17048]

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This commit is contained in:
ca333
2019-10-02 21:53:47 +02:00
parent 4a592eed26
commit 85aad4be5d
8 changed files with 113 additions and 35 deletions
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16
src/wallet/wallet.cpp
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@@ -1841,7 +1841,7 @@ bool CWallet::AddToWalletIfInvolvingMe(const CTransaction& tx, const CBlock* pbl
void CWallet::SyncTransaction(const CTransaction& tx, const CBlock* pblock)
{
LOCK2(cs_main, cs_wallet);
LOCK(cs_wallet);
if (!AddToWalletIfInvolvingMe(tx, pblock, true))
return; // Not one of ours
@@ -4830,9 +4830,8 @@ CWalletKey::CWalletKey(int64_t nExpires)
nTimeExpires = nExpires;
}
int CMerkleTx::SetMerkleBranch(const CBlock& block)
void CMerkleTx::SetMerkleBranch(const CBlock& block)
{
AssertLockHeld(cs_main);
CBlock blockTmp;
// Update the tx's hashBlock
@@ -4847,21 +4846,10 @@ int CMerkleTx::SetMerkleBranch(const CBlock& block)
vMerkleBranch.clear();
nIndex = -1;
LogPrintf("ERROR: SetMerkleBranch(): couldn't find tx in block\n");
return 0;
}
// Fill in merkle branch
vMerkleBranch = block.GetMerkleBranch(nIndex);
// Is the tx in a block that's in the main chain
BlockMap::iterator mi = mapBlockIndex.find(hashBlock);
if (mi == mapBlockIndex.end())
return 0;
const CBlockIndex* pindex = (*mi).second;
if (!pindex || !chainActive.Contains(pindex))
return 0;
return chainActive.Height() - pindex->GetHeight() + 1;
}
int CMerkleTx::GetDepthInMainChainINTERNAL(const CBlockIndex* &pindexRet) const