highperfocused/bitcoin
1
0
Fork 0
mirror of https://github.com/bitcoin/bitcoin.git synced 2026-01-22 08:09:19 +01:00
Code Issues Packages Projects Releases Wiki Activity

net: Add missing lock in ProcessHeadersMessage(...)

Browse Source 
Reading the variable mapBlockIndex requires holding the mutex cs_main.

The new "Disconnect outbound peers relaying invalid headers" code
added in commit 37886d5e2f and merged
as part of #11568 two days ago did not lock cs_main prior to accessing
mapBlockIndex.

Github-Pull: #11578
Rebased-From: 2530bf27b7
This commit is contained in:
practicalswift
2017-10-30 14:28:19 +01:00
committed by MarcoFalke
parent 59b210d9a7
commit ec8dedff46
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
src/net_processing.cpp
View File

@@ -1250,8 +1250,8 @@ bool static ProcessHeadersMessage(CNode *pfrom, CConnman *connman, const std::ve
if (!ProcessNewBlockHeaders(headers, state, chainparams, &pindexLast, &first_invalid_header)) {
int nDoS;
if (state.IsInvalid(nDoS)) {
LOCK(cs_main);
if (nDoS > 0) {
LOCK(cs_main);
Misbehaving(pfrom->GetId(), nDoS);
}
if (punish_duplicate_invalid && mapBlockIndex.find(first_invalid_header.GetHash()) != mapBlockIndex.end()) {