Hello! Given the issue (heap corruption) and lack of symbols for openssl it's somewhat hard to determine. With heap corruption it could be a buffer overflow somewhere else in the application which is then caught during the malloc call.
Mårten ________________________________________ From: Interest <interest-boun...@qt-project.org> on behalf of Alexander Dyagilev <alervd...@gmail.com> Sent: Sunday, March 21, 2021 20:32 To: Interests Qt Subject: [Interest] Crash in Qt OpenSSL thread Hello, One of our users reported the following crash: Unhandled exception at 0x00007FF82C50EF89 (ntdll.dll) in fdm.exe.3964.dmp: 0xC0000374: A heap has been corrupted (parameters: 0x00007FF82C5777F0). With the following stack trace: ntdll.dll!RtlReportFatalFailure() Unknown ntdll.dll!RtlReportCriticalFailure() Unknown ntdll.dll!RtlpHeapHandleError() Unknown ntdll.dll!RtlpHpHeapHandleError() Unknown ntdll.dll!RtlpLogHeapFailure() Unknown ntdll.dll!RtlpLowFragHeapAllocFromContext() Unknown ntdll.dll!RtlpAllocateHeapInternal() Unknown ucrtbase.dll!_malloc_base() Unknown libcrypto-1_1-x64.dll!00007fffc4a6f16e() Unknown libcrypto-1_1-x64.dll!00007fffc4a719b9() Unknown libssl-1_1-x64.dll!00007ff813f6e166() Unknown libssl-1_1-x64.dll!00007ff813f85f3f() Unknown libssl-1_1-x64.dll!00007ff813f66d0c() Unknown Qt5Network.dll!QSslSocketBackendPrivate::startHandshake() Line 1011 C++ Qt5Network.dll!QSslSocketBackendPrivate::startServerEncryption() Line 695 C++ Qt5Network.dll!QSslSocket::startClientEncryption() Line 1855 C++ Qt5Network.dll!QSslSocket::qt_static_metacall(QObject * _o, QMetaObject::Call _c, int _id, void * * _a) Line 180 C++ Qt5Core.dll!QMetaObject::activate(QObject * sender, int signalOffset, int local_signal_index, void * * argv) Line 3807 C++ Qt5Network.dll!QAbstractSocketPrivate::_q_testConnection() Line 1181 C++ Qt5Network.dll!QWriteNotifier::event(QEvent * e) Line 1310 C++ Qt5Widgets.dll!QApplicationPrivate::notify_helper(QObject * receiver, QEvent * e) Line 3652 C++ Qt5Widgets.dll!QApplication::notify(QObject * receiver, QEvent * e) Line 3604 C++ Qt5Core.dll!QCoreApplication::notifyInternal2(QObject * receiver, QEvent * event) Line 1088 C++ Qt5Core.dll!qt_internal_proc(HWND__ * hwnd, unsigned int message, unsigned __int64 wp, __int64 lp) Line 204 C++ user32.dll!UserCallWinProcCheckWow() Unknown user32.dll!DispatchMessageWorker() Unknown Qt5Core.dll!QEventDispatcherWin32::processEvents(QFlags<enum QEventLoop::ProcessEventsFlag> flags) Line 650 C++ Qt5Core.dll!QEventLoop::exec(QFlags<enum QEventLoop::ProcessEventsFlag> flags) Line 225 C++ Qt5Core.dll!QThread::exec() Line 531 C++ Qt5Core.dll!QThreadPrivate::start(void * arg) Line 405 C++ kernel32.dll!BaseThreadInitThunk() Unknown ntdll.dll!RtlUserThreadStart() Unknown We use Qt 5.12.10. It seems it's a rare crash. Any thoughts what can be the cause of it and can it be fixed somehow? _______________________________________________ Interest mailing list Interest@qt-project.org https://lists.qt-project.org/listinfo/interest _______________________________________________ Interest mailing list Interest@qt-project.org https://lists.qt-project.org/listinfo/interest