Closed Bug 953478 Opened 12 years ago Closed 12 years ago

Error loading purplexpcom with SELinux

Categories

(Chat Core :: General, defect, P5)

Product:
Chat Core
Component:
General
Platform:
x86
Linux
Type:
defect

Tracking

(Not tracked)

Status:
RESOLVED WORKSFORME

People

(Reporter: bugzilla, Assigned: florian)

Details

*** Original post on bio 27 by Vojtech Horky <vojta.horky AT seznam.cz> at 2007-10-26 12:07:00 UTC *** [I am not sure whether this bug shouldn't rather be in the libpurple section] When launching ./instantbird.sh, message "TypeError: Components.classes['@instantbird.org/purple/core;1'] has no properties" appears, then the application loads okay, but when trying to add an account, the protocol list is empty. I have Fedora 7 and the problem might be (not sure) somehow related to SELinux, because before that, warning about "text relocation" appeared. However, I overwrite the denial by granting permissions: executed chcon -t textrel_shlib_t on mentioned files (libpurpleloader.so and libpurplexpcom.so) but the problem persisted. I can attach full SELinux log if needed.
*** Original post on bio 27 at 2007-10-26 18:18:04 UTC *** (In reply to comment #0) > When launching ./instantbird.sh, message "TypeError: > Components.classes['@instantbird.org/purple/core;1'] has no properties" > appears This message appears when libpurplexpcom.so could not be loaded. Bug 953454 (bio 3) is about replacing this message by a human readable error message. > I have Fedora 7 and the problem might be (not sure) somehow related to SELinux, > because before that, warning about "text relocation" appeared. > However, I overwrite the denial by granting permissions: executed chcon -t > textrel_shlib_t on mentioned files (libpurpleloader.so and libpurplexpcom.so) > but the problem persisted. > > I can attach full SELinux log if needed. > This problem seems like a missing dependency on one of the libraries. A log may help.
Component: Account manager → General
Product: Instantbird → Chat Core
Version: 0.1 → trunk
*** Original post on bio 27 by Vojtech Horky <vojta.horky AT seznam.cz> at 2007-10-26 20:07:23 UTC *** (In reply to comment #1) > (In reply to comment #0) > > When launching ./instantbird.sh, message "TypeError: > > Components.classes['@instantbird.org/purple/core;1'] has no properties" > > appears > > This message appears when libpurplexpcom.so could not be loaded. Bug 953454 (bio 3) is about > replacing this message by a human readable error message. > > > I have Fedora 7 and the problem might be (not sure) somehow related to SELinux, > > because before that, warning about "text relocation" appeared. > > However, I overwrite the denial by granting permissions: executed chcon -t > > textrel_shlib_t on mentioned files (libpurpleloader.so and libpurplexpcom.so) > > but the problem persisted. > > > > I can attach full SELinux log if needed. > > > > This problem seems like a missing dependency on one of the libraries. I have double-checked and I have the libraries listed on download page. (Maybe only libraries within the package could not be found or loaded?) > A log may help. This is SELinux log: Summary SELinux is preventing /home/vojta/instantbird-0.1/xulrunner/xulrunner-bin from loading /home/vojta/instantbird-0.1/components/libpurpleloader.so which requires text relocation. Detailed Description The /home/vojta/instantbird-0.1/xulrunner/xulrunner-bin application attempted to load /home/vojta/instantbird-0.1/components/libpurpleloader.so which requires text relocation. This is a potential security problem. Most libraries do not need this permission. Libraries are sometimes coded incorrectly and request this permission. The http://people.redhat.com/drepper/selinux-mem.html web page explains how to remove this requirement. You can configure SELinux temporarily to allow /home/vojta/instantbird-0.1/components/libpurpleloader.so to use relocation as a workaround, until the library is fixed. Please file a http://bugzilla.redhat.com/bugzilla/enter_bug.cgi against this package. Allowing Access If you trust /home/vojta/instantbird-0.1/components/libpurpleloader.so to run correctly, you can change the file context to textrel_shlib_t. "chcon -t textrel_shlib_t /home/vojta/instantbird-0.1/components/libpurpleloader.so" The following command will allow this access: chcon -t textrel_shlib_t /home/vojta/instantbird-0.1/components/libpurpleloader.so Additional Information Source Context user_u:system_r:unconfined_t Target Context user_u:object_r:user_home_t Target Objects /home/vojta/instantbird-0.1/components/libpurplelo ader.so [ file ] Affected RPM Packages Policy RPM selinux-policy-2.6.4-48.fc7 Selinux Enabled True Policy Type targeted MLS Enabled True Enforcing Mode Enforcing Plugin Name plugins.allow_execmod Host Name localhost.localdomain Platform Linux localhost.localdomain 2.6.22.9-91.fc7 #1 SMP Thu Sep 27 20:47:39 EDT 2007 x86_64 x86_64 Alert Count 4 First Seen Pá 26. říjen 2007, 21:59:13 CEST Last Seen Pá 26. říjen 2007, 21:59:13 CEST Local ID 5287a772-e0b2-4e2b-9e37-4c38ac56dcc2 Line Numbers Raw Audit Messages avc: denied { execmod } for comm="xulrunner-bin" dev=sda7 egid=501 euid=500 exe="/home/vojta/instantbird-0.1/xulrunner/xulrunner-bin" exit=-13 fsgid=501 fsuid=500 gid=501 items=0 name="libpurpleloader.so" path="/home/vojta/instantbird-0.1/components/libpurpleloader.so" pid=24001 scontext=user_u:system_r:unconfined_t:s0 sgid=501 subj=user_u:system_r:unconfined_t:s0 suid=500 tclass=file tcontext=user_u:object_r:user_home_t:s0 tty=pts1 uid=500
Summary: Protocol list is empty → Error loading purplexpcom with SELinux
Version: trunk → 0.1
*** Original post on bio 27 by Vojtech Horky <vojta.horky AT seznam.cz> at 2007-11-05 23:29:18 UTC *** (In reply to comment #1) > (In reply to comment #0) > > When launching ./instantbird.sh, message "TypeError: > > Components.classes['@instantbird.org/purple/core;1'] has no properties" > > appears > ... > This problem seems like a missing dependency on one of the libraries. Another guess, sorry about replying so late. Maybe the problem is that I use 64bit versions of these libraries (and SELinux is just a side-effect after some conversion 32->64?). I am not sure whether this might be the _real_ cause of the problem, but I tried to compile from sources and everything went smooth until making in xpcom directory where compiler stopped on messages similar to src/purpleCoreService.cpp:330: error: cast from ‘PurpleBuddy*' to ‘PRUint32' loses precision which seems to me as conflict of 32bit and 64bit. I can post logs from compilation and version info if needed.
*** Original post on bio 27 at 2007-11-05 23:38:53 UTC *** (In reply to comment #3) > src/purpleCoreService.cpp:330: error: > cast from ‘PurpleBuddy*' to ‘PRUint32' loses precision > which seems to me as conflict of 32bit and 64bit. > Oh, I'm casting pointers to 32bit ints. This is horrible :-(. This code needs to be changed before we can make a 64bits version of Instantbird. I'm not sure if this is the same issue as in the previous comments or if we have 2 different bugs here. 64bits compatibility definitely needs to get fixed for version 0.2.
*** Original post on bio 27 by Michel Aboudib <micho.mad AT gmail.com> at 2008-10-09 20:16:10 UTC *** > > 64bits compatibility definitely needs to get fixed for version 0.2. > Hi, so version 0.1.2 doesn't work on 64bit systems? at all. I have a multilib system on amd64. Is there a way to make it work? I get this message when running instantbird: "@instantbird.org/purple/core;1" undefined
*** Original post on bio 27 at 2008-10-09 21:08:56 UTC *** (In reply to comment #5) > Hi, so version 0.1.2 doesn't work on 64bit systems? at all. I have a multilib > system on amd64. Is there a way to make it work? I get this message when > running instantbird: > > "@instantbird.org/purple/core;1" undefined > It works on 64 bit systems (actually, my computer is running Ubuntu 64bits). You probably have this error message because a 32bit library is missing on your system. Which distribution do you use?
*** Original post on bio 27 by Michel Aboudib <micho.mad AT gmail.com> at 2008-10-10 01:29:58 UTC *** (In reply to comment #6) > (In reply to comment #5) > > Hi, so version 0.1.2 doesn't work on 64bit systems? at all. I have a multilib > > system on amd64. Is there a way to make it work? I get this message when > > running instantbird: > > > > "@instantbird.org/purple/core;1" undefined > > > > It works on 64 bit systems (actually, my computer is running Ubuntu 64bits). > You probably have this error message because a 32bit library is missing on your > system. Which distribution do you use? > I'm using Gentoo, and a 2.6 kernel.
*** Original post on bio 27 at 2010-11-03 12:37:34 UTC *** The last comments on this bug are over two years old now. Does this problem still occur with the latest release and the latest nightlies?
*** Original post on bio 27 by Hicham HAOUARI <hicham.haouari AT gmail.com> at 2010-11-19 02:02:39 UTC *** I can't reproduce this issue on current Fedora 14 with 0.2, or rawhide ( development branch ) with 0.3a1pre. So I think this bug can be safely closed.
*** Original post on bio 27 at 2011-03-09 20:34:00 UTC *** Mass-change: Reassigning to nobody all the bugs in the NEW or UNCONFIRMED status where I'm the assignee because I used to be the default assignee of the component.
*** Original post on bio 27 at 2011-07-08 19:51:24 UTC *** Closing this based on Comment #9, if there's still an issue using Instantbird 1.0, please open a new bug! Thanks. (Note that there are 64-bit builds available on the FTP server, although they are unsupported.)
Status: UNCONFIRMED → RESOLVED
Closed: 12 years ago
Resolution: --- → WORKSFORME
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