[GUACAMOLE-257] Segfault in on VNC/SSH file upload if SFTP is disabled

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.9.11-incubating
• Fix Version/s: 0.9.13-incubating
• Component/s: SSH, VNC
• Assignee: Mike Jumper
• Reporter: Daryl Borth
• Created: 28/Mar/17 16:56
• Updated: 14/Jun/19 15:45
• Resolved: 30/Mar/17 04:44

Description

I have a VNC system that I'm connecting to. I'm not expecting file transfer to work because I don't have SFTP set up. Previously on 0.9.9 on drag and drop I'd see an error "File transfer is either not supported or not enabled." This is what I'm expecting. Now on 0.9.11, I get disconnected from the VM and have to click reconnect. Looking at the logs, I see a segfault:

kernel: guacd[21554]: segfault at 18 ip 00007f47f4f7b2bf sp 00007f47efffe428 error 4 in libguac-client-vnc.so.0.0.0[7f47f4f6e000+12000]
abrt-hook-ccpp: Process 21549 (guacd) of user 993 killed by SIGSEGV - dumping core

Log is attached.

Issue Links

• is duplicated by: GUACAMOLE-816 Segfaults in libguac-client-vnc