kernel: Xvnc[xxx]: segfault at 0 ip 0000000000527267 sp 00007ffdac64c4b0 error 4 in Xvnc[400000+238000]

Issue

• Configured VNC based on xinetd with XDMCP for GDM as KB #2516

### file: /etc/xinetd.d/xvncserver

service vnc01-640x480x16
{
        disable = no
        protocol = tcp
        socket_type = stream
        wait = no
        user = nobody
        server = /usr/bin/Xvnc
        server_args = -inetd -query localhost -once -geometry 640x480 -depth 16 securitytypes=none
}

• VNC client failed to connect VNC server, with a segfault showing in system log of VNC server.

Jan 20 09:45:27 R72 kernel: Xvnc[14726]: segfault at 0 ip 0000000000527267 sp 00007ffdac64c4b0 error 4 in Xvnc[400000+238000]
Jan 20 09:45:27 R72 xinetd[12233]: EXIT: vnc01-640x480x16 signal=11 pid=14726 duration=0(sec)