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Engine: use a more sane limit for desync check

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m_RecvBuffer.max_size() can be very large, just check on RCON_MAX_PAYLOAD_SIZE (1 MiB), if its larger than that, then the stream has definitely being desynced or malformed. Also drop the client on null payloads because the payload should never be 0.
This commit is contained in:
Kawe Mazidjatari 2025-02-09 01:58:32 +01:00
parent fdab5dea84
commit b0423ee74b
1 changed files with 1 additions and 2 deletions
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src/engine/shared/base_rcon.cpp
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@ -197,8 +197,7 @@ bool CNetConBase::ProcessBuffer(CConnectedNetConsoleData& data,
}
}
if (data.m_nPayloadLen < 0 ||
data.m_nPayloadLen > data.m_RecvBuffer.max_size())
if (data.m_nPayloadLen <= 0 || data.m_nPayloadLen > RCON_MAX_PAYLOAD_SIZE)
{
Error(eDLL_T::ENGINE, NO_ERROR, "RCON Cmd: sync error (%d)\n", data.m_nPayloadLen);
Disconnect("desync"); // Out of sync (irrecoverable).