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SIGSEGV in Java_com_fazecast_jSerialComm_SerialPort_setEventListeningStatus+0x4 #625
Description
Called from Thread.run() in SerialPortEventListener.startListening().
Looks like there's a race with closing the port or shutting down, that the portHandle is set to 0 before the native code is called.
The native code then dereferences the null pointer here:
jSerialComm/src/main/c/Posix/SerialPort_Posix.c
Line 1091 in ff8a78f
Activity
HanyzPAPU commentedon Feb 12, 2026
I think it can happen if
SerialPort.closePort()is called from the user event handler. The wait for the event thread is bypassed, the port is closed andportHandleset to0, and after that the event thread exits its loop and tries to callsetEventListeningStatus(portHandle, false);.HanyzPAPU commentedon Feb 12, 2026
I see that it is fixed for
LISTENING_EVENT_PORT_DISCONNECTEDin 5966a40, but it can still happen for other events.