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https://issues.apache.org/jira/browse/GUACAMOLE-1241?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17253883#comment-17253883
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Mike Jumper commented on GUACAMOLE-1241:
----------------------------------------
The version of FreeRDP currently packaged by Debian stable is not a FreeRDP
release, but rather [commit
2693389|https://github.com/FreeRDP/FreeRDP/commit/2693389a103394e035edc2a01055ca2c9ccccb21].
That commit comes after 2.0.0-rc4 (hence the 2.0.0-dev5 designation), but is
not recent enough to incorporate the changes of [commit
1b78b59|https://github.com/FreeRDP/FreeRDP/commit/1b78b599263033e3527903e33b3dae84031425ec]
that removed the automatic free. There is no way to know from version number
alone whether this is the case (hence the build warning).
I don't think there is a safe way to resolve this that would allow the Debian
version of the package to be supported. Adding a specific exception for the git
commit used by this particular version of Debian feels excessive. I think the
best path forward would be to:
# Expect Debian to (eventually?) package a version of FreeRDP that is a
specific RC or version, not a development snapshot.
# Switch over to a different base image for the guacd Docker image that is
known to provide a package for FreeRDP that is based off a release (Ubuntu?
Maybe?), not a development snapshot.
Users of Debian stable would need to, for the time being:
* Build guacamole-server with {{CFLAGS="-DFREERDP_SVC_CORE_FREES_WSTREAM=1"}},
to effectively override the result of the FreeRDP version test.
* Kindly poke the package managers to consider using only releases for
packaging, as the behavior of development snapshots cannot be predicted.
> Immediate double-free upon connecting to Windows RDP
> ----------------------------------------------------
>
> Key: GUACAMOLE-1241
> URL: https://issues.apache.org/jira/browse/GUACAMOLE-1241
> Project: Guacamole
> Issue Type: Bug
> Components: RDP
> Affects Versions: 1.3.0
> Reporter: Mike Jumper
> Assignee: Mike Jumper
> Priority: Blocker
> Fix For: 1.3.0
>
>
> Regression testing against {{staging/1.3.0}} using the Docker image, I am
> seeing an immediate disconnect due to a double-free when attempting to
> connect to Windows RDP:
> {code:none}
> ...
> guacd[24698]: INFO: Loading keymap "base"
> guacd[24698]: INFO: Loading keymap "en-us-qwerty"
> guacd[24698]: INFO: Connected to RDPDR 1.13 as client 0x0005
> free(): double free detected in tcache 2
> guacd[6]: INFO: Connection "$e6955582-c6f2-4912-a4bd-a3ffee002cd1"
> removed.
> {code}
> With there being a few memory-related RDP changes in the upcoming release
> (and with no such issues in 1.2.0), I suspect this is a regression.
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