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https://issues.apache.org/jira/browse/GUACAMOLE-388?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16214689#comment-16214689
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Michael Jumper commented on GUACAMOLE-388:
------------------------------------------

Marking this as 0.9.12-incubating, as the line 115 does not contain the 
{{guac_common_cursor_remove_user()}} call in question for 0.9.13-incubating and 
later.

Can you please also provide the logs from guacd from the point that the 
connection from the webapp is established until when this occurs?

> segfault in vnc code path
> -------------------------
>
>                 Key: GUACAMOLE-388
>                 URL: https://issues.apache.org/jira/browse/GUACAMOLE-388
>             Project: Guacamole
>          Issue Type: Bug
>          Components: VNC
>    Affects Versions: 0.9.12-incubating
>            Reporter: Ilya Shipitsin
>
> {code:none}
> Program terminated with signal SIGSEGV, Segmentation fault.
> #0  0x00007f17a32ccac2 in guac_vnc_user_leave_handler (user=0x2d34960) at 
> user.c:115
> 115        guac_common_cursor_remove_user(vnc_client->display->cursor, user);
> (gdb) bt
> #0  0x00007f17a32ccac2 in guac_vnc_user_leave_handler (user=0x2d34960) at 
> user.c:115
> #1  0x0000000000404d50 in guacd_handle_user (user=user@entry=0x2d34960) at 
> user.c:304
> #2  0x0000000000404461 in guacd_user_thread (data=0x7f179c01b6f0) at proc.c:95
> #3  0x00007f17a766f064 in start_thread (arg=0x7f179af18700) at 
> pthread_create.c:309
> #4  0x00007f17a685262d in clone () at 
> ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
> (gdb) 
> {code}



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