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https://issues.apache.org/jira/browse/GUACAMOLE-433?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16258766#comment-16258766
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Nick Couchman commented on GUACAMOLE-433:
-----------------------------------------
Can you provide more detail on the circumstances that lead to this segfault?
Looks like it has to do with keypress events of some sort, but some further
context on this would be helpful.
> guacd rdp plugin segfault sometimes
> -----------------------------------
>
> Key: GUACAMOLE-433
> URL: https://issues.apache.org/jira/browse/GUACAMOLE-433
> Project: Guacamole
> Issue Type: Bug
> Components: RDP
> Affects Versions: 0.9.12-incubating
> Environment: GNU Linux x86_64
> Reporter: James He
>
> Observed guacd segfault when using RDP.
> {code:none}
> Program terminated with signal SIGSEGV, Segmentation fault.
> #0 0x00002aaaafb6927a in guac_rdp_keyboard_update_keysym
> (keyboard=0x2aaabbe22010, keysym=65293, pressed=1)
> at keyboard.c:372
> 372 if (!keyboard->synchronized) {
> (gdb) p keyboard->synchronized
> Cannot access memory at address 0x2aaabbe2201c
> (gdb) bt
> #0 0x00002aaaafb6927a in guac_rdp_keyboard_update_keysym
> (keyboard=0x2aaabbe22010, keysym=65293, pressed=1)
> at keyboard.c:372
> #1 0x00002aaaafb68b13 in guac_rdp_user_key_handler (user=0x2aaab4004bb0,
> keysym=65293, pressed=1)
> at input.c:131
> #2 0x00002aaaaaf4dca6 in __guac_handle_key (user=0x2aaab4004bb0, argc=2,
> argv=0x2aaab400baf0)
> at user-handlers.c:145
> #3 0x00002aaaaaf4d3ea in guac_user_handle_instruction (user=0x2aaab4004bb0,
> opcode=0x2aaab400cef5 "key",
> argc=2, argv=0x2aaab400baf0) at user.c:178
> #4 0x00000000004055e7 in guacd_user_input_thread (data=0x2aaaaeb52d20) at
> user.c:127
> #5 0x00002aaaab8521a4 in start_thread (arg=0x2aaaaf354700) at
> pthread_create.c:309
> #6 0x00002aaaabd5965d in clone () from /lib64/libc.so.6
> {code}
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