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Drop suspiciously large data

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This is to avoid exhausting system memory.
This commit is contained in:
Chocobo1 2019-06-27 20:29:02 +08:00
parent cd654d61fd
commit 6119cb370f
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1 changed files with 6 additions and 0 deletions
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6
src/app/qtsingleapplication/qtlocalpeer.cpp
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@ -191,6 +191,12 @@ void QtLocalPeer::receiveConnection()
QByteArray uMsg;
quint32 remaining;
ds >> remaining;
if (remaining > 65535) {
// drop suspiciously large data
delete socket;
return;
}
uMsg.resize(remaining);
int got = 0;
char* uMsgBuf = uMsg.data();